Carrier 33CS450 01 Thermostat User Manual

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Carrier

Quick Start

1

2

Getting to Know Your

Thermostat

Setting Clock and Day

Basic Operation

3

4

Viewing Temperature

and Humidity

5

Programming the

Daily Schedule

Programming the

Fan Operation

6

7

Thermostat Display

Options

8

Humidification

9

Dehumidification

10

Viewing Equipment

Run-Times

1

Electric Heat and

Heat Pump Operation 12

Timers and Deadbands 13

Using the

Programmable Output 14

Programming Remote

Sensor Operation

15

Dry Contact Operation

1

6

Light Activated

Operation

17

18

Energy Save

Operation

Programming the Run-

Time Alerts

1

9

Programming the

Holiday Mode

2

0

Configuring the MISC

Outputs

21

Factory Defaults,

2

Calibration, and Sensors

Accessories

23

Advanced Setup Table

Page iv

24

SECTION 1

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1

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Section 1 Contents:

Setting the Clock and Day...........1.2

Selecting the Heat or Cool

Mode............................................1.3

Selecting Your Desired

Temperature................................1.4

Using the Fan Button...................1.4

Note: Following the instructions in this section will allow you to

operate your thermostat using the factory default settings. These

settings are depicted in the illustrations throughout this manual.

Page 1.1

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MODE HUMIDITY

SET CLOCK

1

Press the MODE and

HUMIDITY buttons

at the same time

During Setup & Programming:

Pressing the UP or DOWN

buttons will modify the flashing

selection.

SS ee tt tt ii nn gg tt hh ee CC ll oo cc kk

Am

Setup

I2:00

I

To adjust the

Clock or Day use

Press

SS ee tt tt ii nn gg tt hh ee DD aa yy

MODE

Setup

Mo

2

Buttons.

Press the MODE

and HUMIDITY

buttons at the

same time to

return to normal

operation.

MODE HUMIDITY

SET CLOCK

Page 1.2

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1

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Select Mode by Pressing the MODE Button

I2:00Pm

Heating Only

Su

The HEAT setting indicates the

temperature the room has to

reach before the furnace will

turn on to heat the room.

HEAT

Press

70

68

MODE

I2:00Pm

Cooling Only

Su

76

COOL

The COOL setting indicates the

temperature the room has to

reach before the air conditioner

will turn on to cool the room.

Press

70

MODE

I2:00Pm

Su

Heating or Cooling

AUTO will automatically select

heat or cool based on room

temperature demand.

76

COOL

AUTO

HEAT

70

68

Press

Time Schedule for

Heating or Cooling

MODE

Program On

I2:00Pm

Su

Program On will activate the

stored timer operation for the

heating and cooling

76

COOL

occupied

1

HEAT

setpoints (occupied or

unoccupied periods).

70

68

Press

MODE

I2:00Pm

Su

Off

OFF indicates both heating

and air conditioning

systems are turned off.

OFF

70

Page 1.3

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1

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AUTO OR PROGRAM MODE

Pressing the UP or DOWN buttons in Auto or Program mode

will adjust both the heat and cool set temperatures

simultaneously.

Adjust the desired

set temperature with the

I2:00Pm

Su

76

COOL

AUTO

HEAT

70

68

buttons.

HEAT OR COOL MODE

Pressing the UP or DOWN buttons in Heat or Cool mode will

adjust only the heat or cool set temperature.

Adjust the desired

set temperature with the

I2:00Pm

Su

76

COOL

70

buttons.

Press

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FAN

I2:00Pm

Fan On indicates constant fan operation.

If Fan On is selected the fan will run

continuously at all times, except in Off,

and will only run if there is a heating or

cooling demand in Unoccupied periods.

Pressing the FAN button toggles this

feature on or off.

Su

76

COOL

AUTO

HEAT

FanOn 70 68

Page 1.4

SECTION 2

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2

Section 2 Contents:

Front Panel Buttons.....................2.2

Display Features...........................2.3

Page 2.1

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2

Warmer Button

Backlit LCD Display

(glows red)

sometimes referred

to as the UP button

[

]

Carrier

I2:00Pm

Su

74

COOL

AUTO

HEAT

72

Cooler Button sometimes refer-

(glows blue)

red to as the

[

]

DOWN button

Override

Button

Heat or Cool Demand Indicator

Red = Heat, Green = Cool

Premier

Commercial

Programmable Thermostat

I2:00Pm

Su

74

COOL

AUTO

HEAT

72

MODE HUMIDITY

SET CLOCK

FAN

PROGRAM HOLIDAY

OUTSIDE

OVER

RIDE

QUICK RELEASE FOR

ACCESSORY PORT

pg. 23.1)

(

MODE HUMIDITY

SET CLOCK

FAN

PROGRAM HOLIDAY

OUTSIDE

Page 2.2

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2

Am Program On Setup

I8:88Pm StartStop

H I

DeHumidify 88

SuMoTuWeThFrSa

Service Filter

Pan UV Light

COOL

Outside

Remote

AUTO

OFFON

Unoccupied

AUXHEAT

L O

1

23

Override

FanOn I88 88

Mode Indicators - Section 4

Selects the operational mode of the equipment.

HEAT - Indicates the heating mode.

COOL - Indicates the air conditioning mode.

AUTO - Indicates the system will automatically changeover

between heat and cool modes as the temperature varies.

OFF - Indicates heating and cooling is turned off.

PROGRAM ON - Indicates the time period program is enabled to

run.

Clock with Day of the Week - Section 3

Indicates the current time and day. This clock is also used to program

the time period schedules.

Room Temperature Display - Section 5

Indicates the current room temperature and displays the outside

temperature when selected.

Desired Set Temperature - Section 4/5

Indicates desired room temperature(s). Also displays the highest

and lowest outside temperatures for the day.

Outside icon - Section 5

Indicates the temperature displayed is from the optional outside

sensor.

Page 2.3

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2

Am Program On Setup

I8:88Pm StartStop

H I

DeHumidify 88

SuMoTuWeThFrSa

Service Filter

Pan UV Light

COOL

Outside

Remote

AUTO

OFFON

Unoccupied

AUXHEAT

L O

1

23

Override

FanOn I88 88

Occupied & Unoccupied icons - Section 6

Indicates the program number: Occupied 1,2,3,or Unoccupied.

Override icon - Section 6

Indicates the program is currently being overridden for up to 4 hours.

Setup icon - Sections 7-20

Indicates the thermostat is in the setup mode.

Fan On icon - Section 7

Indicates constant, continuous fan operation. When Fan On is not

lit - indicates the fan will only operate when necessary to heat or to

cool.

Service Filter icon - Section 19

Appears when the filter should be serviced under normal conditions.

Adjustable from 0 - 1950 hours of blower operation.

icon - Section 8

Indicates keypad has been locked.

StartStop icon - Section 6

Appears when programming occupied time periods.

Page 2.4

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2

Am Program On Setup

I8:88Pm StartStop

H I

DeHumidify 88

SuMoTuWeThFrSa

Service Filter

Pan UV Light

COOL

Outside

Remote

AUTO

OFFON

Unoccupied

AUXHEAT

L O

1

23

Override

FanOn I88 88

UV Light icon - Section 11/19

Appears when the UV bulb should be serviced under normal

conditions. Adjustable from 0 - 1950 days of operation.

Remote icon - Page 22.4

Indicates the remote sensor reading of the thermostat is being

viewed.

AuxHeat icon - Pages 10.5 & 13.4

Indicates 2nd stage electric strip heat is being used when the therm-

ostat is programmed for Heat Pump operation. Only the Aux icon

will appear during Cool to Dehumidify to indicate Reheat operation.

Humidify/DeHumidify icon - Sections 9-10

Indicates the system is currently humidifying/dehumidifying the air.

Lo icon - Section 5

Indicates the lowest recorded outside temperature for the day.

Hi icon - Section 5

Indicates the highest recorded outside temperature for the day.

Service Pan icon - Section 16

Indicates that a sensor (accessory) has detected the condensate

drain pan is full and the compressor (Y1) has been locked out.

Page 2.5

SECTION 3

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3

Section 3 Contents:

Setting the Clock..........................3.2

Setting the Day.............................3.2

Note: During setup & programming pressing the UP or DOWN

buttons will modify the flashing selection.

Page 3.1

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MODE HUMIDITY

SET CLOCK

During Setup & Programming:

Pressing the UP or DOWN

buttons will modify the flashing

selection.

Press the MODE and

HUMIDITY buttons

at the same time

3

SS ee tt tt ii nn gg tt hh ee CC ll oo cc kk

Am

Setup

I2:00

I

To adjust the

Clock or Day use

Press

SS ee tt tt ii nn gg tt hh ee DD aa yy

MODE

Setup

Mo

2

Buttons.

Press the MODE

and HUMIDITY

buttons at the

same time to

return to normal

operation.

MODE HUMIDITY

SET CLOCK

Page 3.2

SECTION 4

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4

Section 4 Contents:

Programming for Auto or

Program Operation....................4.2

Selecting the Proper

Operating Mode.........................4.3

Selecting Your Desired

Temperature...............................4.7

Note: During setup & programming pressing the UP or DOWN

buttons will modify the flashing selection.

Page 4.1

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When the very simplest operation is desired, this thermostat

may be configured to be non-programmable, with or without

Auto-Changeover. Follow the step below.

4

If ‘NO’ is selected, the thermostat will lockout the Program On screen;

only the Off, Heat, Cool, and Auto screens may be accessed by

pressing the MODE button.

Select ‘YES’ if you would like your thermostat to be programmable,

then the Program mode will be accessible through the use of the

MODE button.

Note: Press the MODE

button momentarily

to move through the

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Program On Setup

YES

i

Select Yes if you would like

the thermostat to be program-

mable or No for non-program-

mable.

Press

NO

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Page 4.2

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When the very simplest operation is desired, this thermostat may

be configured to be a manual heat and cool thermostat, with or

without time period programmability. Follow the step below.

4

The thermostat may be programmed to function as a Heat Only or

Cool Only thermostat by selecting ‘NO’ in the setup screen below.

This will lockout the Auto-Changeover screen and only allow the Off,

Heat, Cool, and Program On screens to be accessed.

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

Setup

YES

Select Yes if you would

2

like the thermostat to

be Auto-Changeover or

No for a Heat Only and

Cool Only Thermostat.

AUTO

Press

NO

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Page 4.3

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ii ss CC oo nn ff ii gg uu rr ee dd tt oo bb ee ::

NON-PROGRAMMABLE WITH MANUAL-CHANGEOVER - If the

thermostat is configured to be a non-programmable thermostat with

Manual-Changeover, the following screens will be available by

pressing the MODE button.

4

Select the Mode by Pressing the MODE Button

I2:00Pm

Heating Only

Su

The HEAT setting indicates the

temperature the room has to

reach before the furnace will

turn on to heat the room.

HEAT

70

68

Press

MODE

I2:00Pm

Cooling Only

Su

76

COOL

The COOL setting indicates the

temperature the room has to

reach before the air conditioner

will turn on to cool the room.

70

Press

MODE

I2:00Pm

Su

Off

OFF indicates both heating

and air conditioning

OFF

systems are turned off.

70

Page 4.4

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ii ss CC oo nn ff ii gg uu rr ee dd tt oo bb ee ::

NON-PROGRAMMABLE WITH AUTO-CHANGEOVER - If the

thermostat is configured to be a non-programmable thermostat

with Auto-Changeover, the following screens will be available by

pressing the MODE button

4

Select the Mode by Pressing the MODE Button

I2:00Pm

Heating Only

Su

The HEAT setting indicates the

temperature the room has to

reach before the furnace will

turn on to heat the room.

HEAT

70

68

Press

MODE

I2:00Pm

Cooling Only

Su

76

COOL

The COOL setting indicates the

temperature the room has to

reach before the air conditioner

will turn on to cool the room.

70

Press

MODE

I2:00Pm

Su

Heating or Cooling

76

COOL

AUTO will automatically select

heat or cool based on room

temperature demand.

AUTO

HEAT

70

68

Press

MODE

I2:00Pm

Su

Off

OFF indicates both heating

and air conditioning

systems are turned off.

OFF

70

Page 4.5

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PROGRAMMABLE WITH MANUAL-CHANGEOVER - If the thermostat is

configured to be a programmable thermostat with Manual-Changeover, the

4

following screens will be available by pressing the MODE button.

Select the Mode by Pressing the MODE Button

I2:00Pm

Heating Only

Su

The HEAT setting indicates the

temperature the room has to

reach before the furnace will

turn on to heat the room.

Press

HEAT

MODE

70

68

I2:00Pm

Cooling Only

Su

76

COOL

The COOL setting indicates the

temperature the room has to

reach before the air conditioner

will turn on to cool the room.

Press

MODE

70

Time Schedule for

Heating Only

Program On

I2:00Pm

Su

The HEAT Program On setting

will activate the time period

program for the heating

setpoint ONLY (occupied or

unoccupied periods).

occupied

1

HEAT

Press

70 68

MODE

Time Schedule for

Cooling Only

Program On

I2:00Pm

Su

76

COOL

The COOL Program On setting

will activate the time period

program for the cooling

setpoint ONLY (occupied or

unoccupied periods).

occupied

1

Press

70

MODE

I2:00Pm

Su

Off

OFF indicates both heating

and air conditioning

systems are turned off.

OFF

70

Page 4.6

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PROGRAMMABLE WITH AUTO-CHANGEOVER - If the thermostat is

configured to be a programmable thermostat with Auto-Changeover,

the following screens will be available by pressing the MODE button.

4

Select the Mode by Pressing the MODE Button

I2:00Pm

Heating Only

Su

The HEAT setting indicates the

temperature the room has to

reach before the furnace will

turn on to heat the room.

Press

HEAT

MODE

70

68

I2:00Pm

Cooling Only

Su

76

COOL

The COOL setting indicates the

temperature the room has to

reach before the air conditioner

will turn on to cool the room.

Press

70

MODE

I2:00Pm

Su

Heating or Cooling

AUTO will automatically select

heat or cool based on room

temperature demand.

76

COOL

AUTO

HEAT

70

68

Press

Time Schedule for

Heating or Cooling

Program On

I2:00Pm

MODE

Program On will activate the

time period program for the

heating and cooling

Su

76

COOL

setpoints. (occupied or

unoccupied periods)

occupied

1

HEAT

70

68

Press

I2:00Pm

Su

MODE

Off

OFF indicates both heating

and air conditioning

systems are turned off.

OFF

70

Page 4.7

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AUTO OR PROGRAM MODE

Pressing the UP or DOWN buttons in Auto or Program

4

modes will adjust both the heat and cool set temperatures

simultaneously. For more information on this see page 13.2.

Adjust the desired

set temperature with the

I2:00Pm

Su

76

COOL

AUTO

HEAT

70

68

buttons.

HEAT OR COOL MODE

Pressing the UP or DOWN buttons in Heat or Cool modes will

adjust only the heat or cool set temperature.

Adjust the desired

set temperature with the

I2:00Pm

Su

76

COOL

70

buttons.

Page 4.8

SECTION 5

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5

Section 5 Contents:

Viewing the Outside

Temperature..............................5.2

Viewing the Indoor

Humidity....................................5.3

Page 5.1

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Requires an outside sensor (optional accessory) to be installed (see

page 15.2 for wiring instructions). To read the temperature from the

outside sensor, press the PROGRAM and HOLIDAY buttons. The

display will then show the current outside temperature along with the

highest and lowest temperatures for the day.

5

PROGRAM HOLIDAY

OUTSIDE

Press the PROGRAM

button. While holding

PROGRAM, press the

HOLIDAY button to view

the Outside temperature.

High temperature

for the day.

The highest and lowest

temperatures for the day

will be displayed along

with the current outside

temperature.

H I

92

Outside

Current outside

temperature.

L O

This reading is from the

Low temperature

for the day.

sensor connected to RS2. 83 68

Press the PROGRAM

PROGRAM HOLIDAY

button. While holding

PROGRAM, press the

HOLIDAY button to leave

the Outside temperature

screen.

OUTSIDE

Note: If no sensors are connected 2 dashes [- -] will appear.

Page 5.2

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Requires the Humidity Module (optional accessory) to be installed.

To display the current humidity at the thermostat, press the

HUMIDITY button. The display will then show the current indoor

humidity along with the humidification setpoint (Section 9).

5

Note: The humidity reading will not appear unless the Humidity

Module has been installed. If the Humidity Module has not been

installed dashes will appear in place of the humidity reading.

To view the indoor humidity

HUMIDITY

reading, press the

HUMIDITY button

Setup

Current Room Humidity

40

Humidify

I

0

Press

HUMIDITY

Press the HUMIDITY button

again to return the display

to normal operation.

NOTE: Due to variations in environmental conditions, it is not always possible

to achieve the desired humidification or dehumidification setpoint.

Page 5.3

SECTION 6

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Section 6 Contents:

6

Programming a Daily

Schedule...................................6.2

Overriding the Daily

Schedule...................................6.6

Page 6.1

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Press

PROGRAM

Press the PROGRAM button to enter time period programming.

Use the Programming Worksheet on the back cover

to help with this section.

Select the maximum # of

6

occupied periods to be

used on any one day.

Typically most installations

occupied

use only Occupied 1.

1

(

1,2 or 3)

Press

MODE

74

COOL

Adjust the cooling

setpoint for Occupied 1.

occupied

1

(35 - 99, OF )

Press

MODE

74

COOL

Adjust the heating

setpoint for Occupied 1.

occupied

1

HEAT

(OF, 35 - 99 )

Press

72

MODE

85

COOL

Adjust the cooling

setpoint for unoccupied

periods.

Unoccupied

(35 - 99, OF )

Press

MODE

Continued

Page 6.2

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85

COOL

Adjust the heating set-

point for Unoccupied

periods.

Unoccupied

HEAT

(OF, 35 - 99 )

Press

55

MODE

6

Mo

Select the day for

Occupied 1.

occupied

1

(Mo - Su)

Press

MODE

Am

7:00 Start

Mo

Adjust the start time

for Occupied 1.

occupied

1

Press

MODE

6

:00Pm

Stop

Mo

Adjust the stop time

for Occupied 1.

occupied

1

Press

MODE

On

Mo

Select Occupied 1 to run

on this day (On), or not to

run on this day (Off).

ON

occupied

1

Press

Off

MODE

Continued

Page 6.3

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The copy command becomes available after the maximum # of

occupied periods are programmed in a day. This example uses

only one occupied period.

Yes

Select Yes to copy the

previous day’s program

to this day.

Tu

No

If No is selected:

If Yes is selected:

6

Selecting Yes, then pressing mode will copy the

previous day’s program. If yes is selected again,

or each time, this routine will repeat.

Press

MODE

Press

MODE

Tu

Select the day

for Occupied 1.

occupied

1

Press

(Tu - M)

MODE

Am

7

:00 Start

Tu

Adjust the start time

for Occupied 1.

occupied

1

Press

MODE

6

:00Pm

Stop

Tu

Adjust the stop time

for Occupied 1.

occupied

1

Press

MODE

Continued

Page 6.4

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On

Tu

Select Occupied 1 to run

on this day (On), or not to

run on this day (Off).

ON

occupied

1

Off

Yes

Select Yes to copy

We

6

the previous day’s

program to this day.

If No is selected:

No If Yes is selected:

Selecting Yes, then pressing mode will copy the

previous day’s program. If yes is selected each

time, this routine will repeat.

Press

MODE

Press

MODE

If No is selected, as in previous steps, flashing prompts will appear to input start

and stop times for Occupied 1. If more than one occupied period was selected in

the first programming step (page 6.2), then the cool and heat setpoints, and start

and stop times for each additional occupied period will be prompted.

Press

PROGRAM After programming for all seven days is complete, press the PROGRAM button to

leave the Setup screens. If no buttons are pressed, the display will leave the setup

screens after 30 seconds.

PROGRAMMING TIPS

If only the Occupied 1 period is selected in the first programming step (page 6.2), Occupied

& 3 programming steps are skipped. Furthermore, if Occupied 2 is selected, Occupied 3

2

programming steps are skipped.

Heat & Cool setpoints for Occupied 1 are the same for every day of the week. If desired,

Heat & Cool setpoints for Occupied 2 & 3 can be adjusted differently for each day of the week.

If the start time is set later in the day than the stop time, the program will run from the start

time to midnight and from midnight to the stop time on the same day. For example: 9pm start,

8

am stop, on Monday. In this example the program will run from 12am Monday to 8am Monday

and again from 9pm Monday to 12am Tuesday.

Unoccupied Operation: The unoccupied settings take effect at all times when: (1) the program is

on and (2) the current time is outside a preset occupied period. For this reason start and stop

times are not necessary for unoccupied time periods.

If the same start and stop times are programmed for an occupied period, then it will run

2

4 hours.

If one occupied period starts and stops within another occupied period the lower occupied # has

priority. For example: If Occupied 3 is programmed to be on 24 hours, and Occupied 2 is

programmed to run that day, then the Occupied 2 setting will take over for Occupied 3 between

Occupied 2 start and stop times.

Page 6.5

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The OVERRIDE button may be used to interrupt the normal time

schedule programming of the thermostat. Override may only be used

when the thermostat is running the time schedule, in Program On

mode.

Unoccupied Operation - During programmed, unoccupied

periods, pressing the OVERRIDE button will temporarily

6

force the thermostat into Occupied 1 comfort settings for 30

minutes. The remaining Override time will alternate with the

clock (refer to the second display below). The Override timer

can be set up to a maximum of four (4:00) hours, in increments

of 30 minutes. If the timer has been set for the maximum time,

the next press of the OVERRIDE button will reset the timer,

returning the thermostat to the correct time period program for

the day.

Occupied Operation - During programmed, occupied periods, a

press of the OVERRIDE button will force the thermostat into an

unoccupied period for the remainder of the day. During this

forced unoccupied period the OVERRIDE button will operate as

described above.

Program On

7

:56 Pm

We

85

COOL

Unoccupied

HEAT

65

55

Press

7

:56 Pm

OVERRIDE

Program On

:

30

We

74

COOL

occupied

1

HEAT

Override

65

72

Page 6.6

SECTION 7

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Section 7 Contents:

Using the Fan Button.................7.2

Smart Fan Operation..................7.2

Setting the Fan-Off Time

7

Delay..........................................7.3

Fan Purge Operation..................7.4

Page 7.1

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When the fan is set for automatic operation it will energize any time

there is a call for heating or cooling, otherwise the fan will remain off.

Pressing the FAN button will energize the fan and display the FanOn

icon on the thermostat display. To operate the fan in the automatic

mode, press the FAN button again and the FanOn icon will disappear.

Press

FAN

7

Fan On indicates constant fan operation.

I2:00Pm

Su

If Fan On is selected the fan will run

continuously at all times, except in Off,

and will only run if there is a heating or

cooling demand in Unoccupied periods.

Pressing the FAN button toggles this

76

COOL

AUTO

HEAT

FanOn 70 68 feature on or off.

SS mm aa rr tt FF aa nn OO pp ee rr aa tt ii oo nn

This feature allows the fan to run continuously during Occupied 1, 2

or 3 and automatically de-energize during Unoccupied, except when

necessary to heat or cool. To use this feature, place the thermostat in

the Program On mode. Next, press the FAN button to display the

FanOn icon (see below).

Press

FAN

Program On

I2:00Pm

Su

76

COOL

occupied

HEAT

1

FanOn 70 68

Page 7.2

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To increase cooling efficiency of your unit, the thermostat may be

programmed to continue running the fan after a call for cooling has

been satisfied. This delay may be set for 30, 60, or 90 seconds. If

the Fan Off Delay is set for zero seconds, the fan will not energize

after a call for cooling has been satisfied.

7

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

Setup

:

00

3

Set the Fan Off Delay

to 0, 30, 60, or 90

seconds.

Press

FanOn

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Page 7.3

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When this feature is activated, the fan will turn on during an

unoccupied period at a preset amount of time prior to Occupied 1.

This preoccupancy fan purge timer may be set from zero to three

hours, in 15 minute increments. Zero means this feature is turned off.

7

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

Setup

0

:00

Adjust the preoccupancy

fan purge timer.

- 3 hours.

:00 = off

4

0

Press

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Page 7.4

SECTION 8

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Section 8 Contents:

Turning On/Off the

Backlight...................................8.2

Programming the Thermostat

to Display Temperature in

8

Fahrenheit or Celsius..............8.2

Locking/Unlocking the

Keypad......................................8.3

Programming a Security

Level..........................................8.4

Page 8.1

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MODE

Press the MODE button. While holding

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

the MODE, press the PROGRAM

button to enter Setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

Setup

Select backlight operation:

AUTO - Light from 6pm to

am nightly.

5

8

6

AUTO

ON - Light continuously.

OFF - Light for 8 seconds

after a button press.

Press

MODE

PP rr oo gg rr aa mm mm ii nn gg tt hh ee TT hh ee rr mm oo ss tt aa tt tt oo DD ii ss pp ll aa yy

TT ee mm pp ee rr aa tt uu rr ee ii nn FF aa hh rr ee nn hh ee ii tt oo rr CC ee ll ss ii uu ss

Setup

C

6

Select thermostat

operation in degrees

Fahrenheit or Celsius.

F

f

Press

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Page 8.2

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To prevent unauthorized use of the thermostat, the front panel

buttons may be disabled. To disable, or ‘lock’ the keypad, press

and hold the MODE button. While holding the MODE button,

press the UP and DOWN buttons together. The

appear on the display, then release the buttons.

icon will

I2:00Pm

Press all three

85

COOL

8

buttons in the order

AUTO

outlined above for

HEAT

keypad lockout

MODE

65

55

To unlock the keypad, press and hold the MODE button. While

holding the MODE button, press the UP and DOWN buttons

together. The icon will disappear from the display, then

release the buttons.

Page 8.3

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When a security level has been programmed, the thermostat will allow

limited adjustment to the setpoints (steps # 8 and 9). In security

levels 2 and 3, the thermostat is forced into the Program On mode.

To disable the security feature, set the value in step #7 to 0; this will

cause steps # 8 and 9 not to appear.

MODE

Press the MODE button. While holding Note: Press the MODE

button momentarily

the MODE, press the PROGRAM

to move through the

PROGRAM

button to enter Setup screens.

setup screens. Press

and hold the MODE

button to move back-

8

Press the MODE button repeatedly

until this setup screen appears.

wards through the

setup screens.

MODE

Setup

Select the security level:

7

0

1

2

3

=No security in effect

=Setpoint range limited

=1+ program on all times

=2 + prohibits setpoint

changes

Press

0

MODE

Step #8 appears only

if step #7 is not 0.

Setup

HI

8

Adjust the maximum

allowable heat setpoint

when security is in effect.

HEAT

(

35 - 99 )

Press

8

0

Step #9 appears only

if step #7 is not 0.

MODE

Setup

Adjust the minimum

9

allowable cool setpoint

when security is in effect.

COOL

(

35 - 99 )

LO

Press

65

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Page 8.4

SECTION 9

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Section 9 Contents:

Installing the Humidity

Module.......................................9.2

Setting a Thermostat Jumper

for Humidity Operation............9.3

Adjusting the Humidification

9

Setpoint.....................................9.4

NOTE: The humidification functions described in this section will

only be available if a Humidity Module has been properly installed.

Disclaimer:

The manufacturer of this thermostat cannot be liable for

misinstallation, improper connection or improper programming of

the humidity functions of this thermostat that may result in water

damage or mold growth.

Additionally, the manufacturer of this thermostat is not responsible

for the fitness of the humidifier and/or installation of said humidifier

connected to this thermostat. Furthermore, the maintenance of the

humidifier components, including but not limited to, the filters and

pads are not the responsibility of the thermostat manufacturer.

The Humidifier Service icon is only a suggestive reminder and

should not take the place of the humidifier manufacturer’s

required maintenance requirements and schedule.

Page 9.1

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To install the Humidity Module the thermostat must be detached

from the back plate. Plug the Humidity Module into the Humidity

Module connector as shown in Figure 2 below. Follow the detailed

instructions included with the Humidity Module accessory. Once the

Humidity Module has been installed, you must adjust the Humidity

jumper setting to HUM as shown in Figure 1 below. This will allow

you to access the humidification and dehumidification setup steps.

For proper humidity operation, this

jumper must be set for HUM.

Figure 1

Back of 33CS450-01

9

HUM

ELEC

GAS

OR

W3

PROG

HUM

HP

GAS

DEHUM

ECON

NO HUM

MISC3 MISC2 MISC1

(

O

M

YNI SL2CY 1)

B

W1

W2

Y1

G

MISC1

Rs2

MISC2

CK1

CKGND

R

MISC3

RS+5

Rs1

MOI DN US LT EA LWL I HT UH MS IE

D

IT

YI NG

N

S

RSGND

ELEMENT OUTWARD

C

Install the Humidity Module

(see Humidity Module Instruction

Sheet for more detailed information).

Figure 2

Humidity Module

Plug located on

the Thermostat

Circuit Board.

Humidity Module

Thermostat Circuit

Board.

Page 9.2

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To operate one of the MISC outputs using humidity-based operation,

place the MISC1, MISC2, or MISC3 jumper on the terminal labeled

HUM (see diagram below). This will supply 24VAC to the selected

MISC terminal based on the humidification programming in the

following pages. Only one of the three outputs (MISC1, MISC2, or

MISC3) is required to have this jumper. For more information

regarding the MISC1, MISC2, and MISC3 outputs, please see

section 21.

9

In the diagram below, the MISC3 jumper

has been set for HUM (humidify) operation.

ELEC

GAS

W3

PROG

HUM

W3

PROG

HUM

HP

GAS

DEHUM

ECON

MISC3 MISC2 MISC1

(

O

M

YNI SL2CY 1)

B

W1

W2

Y1

G

MISC1

RS2

DEHUM

ECON

MISC2

CK1

CKGND

R

MISC3

RS+5

Rs1

Y2

(MISC1

MOI DN US LT EA LWL I HT UH MS IED

ELEMENT OUTWARD

IT

YI NG

N

S

RSGND

C

MISC3 MISC2 MISC1 ONLY)

IMPORTANT CAUTION

NEVER PUT MORE THAN ONE JUMPER

ON THE SAME MISC JUMPER BLOCK!

THIS MAY DAMAGE THE THERMOSTAT

MISC3

OK

Page 9.3

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If your HVAC unit is equipped with a humidification system and the

Humidity Module has been installed, the thermostat will provide power

to the appropriate terminal on the backplate of the thermostat when

the humidity in the building falls below the setpoint you have chosen.

The value for this setpoint ranges from 0% to 60%.

NOTE: Due to variations in environmental conditions, it is not always possible

to achieve the desired humidification or dehumidification setpoint.

Press the HUMIDITY

button to enter the

NOTE: Each step # is located at

the top right corner of the

HUMIDITY

display for easy reference.

Humidity Setup screen.

9

Current Room Humidity

Setup

40

Humidify

I

Adjust the desired

humidification setpoint

(0%-60%)

Press

0

HUMIDITY

Press the HUMIDITY button to leave the

Humidity Control screens (if no buttons are

pressed, the display will leave the Humidity

Control screens after 30 seconds).

Humidification Notes: Press the

button to set the humidity

setpoint to 0% for no humidification operation.

You cannot set the dehumidify setpoint any lower than the humidify setpoint; a

5

% differential is forced between the humidify and dehumidify setpoints.

Page 9.4

SECTION 10

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Section 10 Contents:

Configuring a Thermostat Output

Jumper for Dehumidification

Operation................................10.2

Adjusting the Dehumidification

Setpoint...................................10.3

Using Your Air Conditioner

to Dehumidify.........................10.4

Using the Reheat

1

0

Function..................................10.5

Using the DEHUM

Terminal..................................10.6

NOTE: The dehumidification functions described in this section will

only be available if a Humidity Module has been properly installed.

For instructions on installing the Humidity Module please see page 9.2.

Page 10.1

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To control a MISC output for dehumidification, install the Humidity

Module and place the Humidity Jumper on HUM (see page 9.2).

Then place the MISC1, MISC2, or MISC3 jumper on the terminal

labeled DEHUM (see diagram below). This will supply 24VAC to the

selected MISC terminal based on the programming in the following

pages. Only one of the three outputs (MISC1, MISC2, or MISC3) is

required to have a jumper. For more information regarding the

MISC1, MISC2, and MISC3 outputs, please see section 21.

In the diagram below, the MISC2 jumper has

1

0

been set for DEHUM (dehumidification) operation.

ELEC

GAS

W3

PROG

HUM

W3

PROG

HUM

HP

GAS

DEHUM

ECON

MISC3 MISC2 MISC1

(

O

M

YNI SL2CY 1)

B

W1

W2

Y1

G

MISC1

Rs2

DEHUM

ECON

MISC2

CK1

CKGND

R

MISC3

RS+5

Rs1

Y2

MOI DN US LT EA LWL I HT UH MS IED

ELEMENT OUTWARD

IT

YI NG

(MISC1

N

S

RSGND

C

MISC3 MISC2 MISC1 ONLY)

IMPORTANT CAUTION

NEVER PUT MORE THAN ONE JUMPER

ON THE SAME MISC JUMPER BLOCK!

THIS MAY DAMAGE THE THERMOSTAT

MISC3

OK

Page 10.2

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Dehum Terminal: If a MISC terminal is selected for DEHUM operation

(see page 10.2), then the thermostat will provide power to this terminal

when the humidity in the building is above the setpoint you have chosen.

See page 10.6 for detailed programming instructions. To utilize this

feature your HVAC unit must be equipped with a DEHUM terminal.

Cool to Dehumidify: If the thermostat is programmed for Cool to

Dehumidify operation, then the thermostat will energize the cooling

system any time the humidity in the building is above the setpoint you

have chosen. The thermostat may also be programmed for Reheat

operation if available. See pages 10.4 and 10.5 for detailed

programming instructions.

In each case, when the indoor humidity falls below the setpoint you

have selected, Cool to Dehumidify and the MISC terminal will be

de-energized. The value for this setpoint ranges from 25% to 99%.

1

0

NOTE: Due to variations in environmental conditions, it is not always

possible to achieve the desired humidification or dehumidification setpoint.

Press the HUMIDITY button

HUMIDITY

NOTE: Each step # is located at

the top right corner of the

to enter the Humidification

Setup screens.

display for easy reference.

MODE

Press the MODE button once

Current Room Humidity

Setup

ON / +

40

DeHumidify

2

Adjust the desired

dehumidification setpoint

Press

(25%-99%)

HUMIDITY

OFF / -

99

Press the HUMIDITY button to leave the Humidity

Control screens (if no buttons are pressed, the display

will leave the Humidity Control screens after 30 seconds).

Dehumidification Notes: Press the

dehumidification setpoint to 99% for no dehumidification operation.

This will lockout Advanced Setup steps 10, 11, and 12 (see pages

0.4 - 10.5).

button to set the

1

You cannot set the dehumidify setpoint any lower than the humidify setpoint; a

5% differential is forced between the humidify and dehumidify setpoints.

Page 10.3

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If Cool to Dehumidify is on and the Humidity Module is installed,

the thermostat has the ability to initiate a cooling cycle for advanced

dehumidification operation. When the thermostat detects the humidity

percentage is above the setpoint for dehumidification, and heating or

cooling is not on, the thermostat will force the compressor to run with

the fan, thus reducing moisture in the air. The green LED will blink

once every eight seconds to indicate this is taking place. This feature

will also allow you to adjust the cooling overshoot of the setpoint, from

0° to 5° (adjustable in step #11). For Example: If the cooling overshoot is

set for 3°F and the cooling setpoint is set for 74°F, then as long as the room

temperature reads between 71°F and 74°F this feature will energize the

compressor and fan to dehumidify the air.

Note: Press the MODE

MODE

Press the MODE button. While holding button momentarily

to move through the

the MODE, press the PROGRAM

setup screens. Press

10

and hold the MODE

PROGRAM

button to enter Setup screens.

button to move back-

Press the MODE button repeatedly

until this setup screen appears.

wards through the

setup screens.

MODE

Steps 10 and 11 only appear if the Dehumidification

setpoint is not 99% (see page 10.3).

Setup

On

DeHumidify

I0

Select Cool to

Dehumidify feature.

OFF

Press

Off

MODE

Step 11 appears only if step 10 is set to “ON”

Setup

DeHumidify

I i

Adjust the maximum

overshoot of the set

temperature in Cool to

Dehumidify mode.

COOL

Press

PROGRAM

(0 - 5 )

3

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Dehumidification Notes: The thermostat must be in the Cool, Auto, or

Program On mode for the Cool to Dehumidify feature to be available.

Page 10.4

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This feature allows the thermostat to turn on Electric Heating (W2)

during Cool to Dehumidify to maintain room temperature until the

dehumidification setpoint is reached. The cooling cycle will allow for

the dehumidification of the air to occur while the Electric Heating will

allow for a constant room temperature. If Reheat is enabled the Aux

icon will appear on the display during Cool to Dehumidify operation.

Note: Press the MODE

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

1

0

Step 12 appears only if step 10 is set to “ON” and if the

Dehumidification setpoint is not 99% (see page 10.3).

Setup

On

If Reheat operation is

desired during the

DeHumidify

I2

dehumidification process

select On; otherwise select OFF

Off.

HEAT

Press

Off

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Dehumidification Notes: Reheat is only available if Cool to

Dehumidify has been set to ON in step #10 (see page 10.4).

Page 10.5

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If you configure a MISC output jumper for DEHUM, it may be

programmed to operate in one of two ways:

1

) Normally Closed (NC): The thermostat will de-energize the

DEHUM terminal to allow the fan to run in low speed when there

is a call for 1st stage cooling and the room humidity is greater than

the dehumidification setpoint.

2

) Normally Open (NO): The thermostat will energize the DEHUM

terminal to allow the fan to run in low speed when there is a call

for 1st stage cooling only and the room humidity is greater than

the dehumidification setpoint.

1

0

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

Setup

NC

Normally Closed (NC) =

DEHUM deenergized for

low speed fan.

DeHumidify

I3

Normally Open (NO) =

DEHUM energized for

low speed fan.

Press

NO

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Dehumidification Notes: The DEHUM terminal will “release” and allow

the fan to operate normally if there is call for 2nd stage cooling or if the call

for Cooling and/or Cool to Dehumidify has been satisfied.

Page 10.6

SECTION 11

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Section 11 Contents:

Viewing the Heat

Run-Time.................................11.2

Viewing the Cool

Run-Time.................................11.3

Viewing the Override

Run-Time.................................11.4

Viewing the Humidifier

Run-Time................................ 11.5

Viewing the UV Light

1

Run-Time.................................11.6

Page 11.1

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This display will track the number of hours that your heating system

has been operating. Press the FAN button to reset the counter.

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

Setup

0

Press Counts the number of

I4

hours Heat has been

running. Press FAN to

reset the Energy Watch*

Heat counter.

1

HEAT

FAN

Press

(0 - 1999 hrs.)

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Energy Watch: This feature enables you to closely monitor your

energy usage by keeping track of the number of hours your

heating system has been operating.

*

Page 11.2

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This display will track the number of hours that your cooling system

has been operating. Press the FAN button to reset the counter.

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

Setup

Press

0

Counts the number of

hours Cool has been

running. Press FAN to

reset the Energy Watch*

Cool counter.

I5

COOL

1

FAN

Press

(0 - 1999 hrs.)

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Energy Watch: This feature enables you to closely monitor your

energy usage by keeping track of the number of hours your

cooling system has been operating.

*

Page 11.3

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This display will track the number of hours that your thermostat has

been operating in the Override mode (see page 6.6). Press the FAN

button to reset the counter.

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

Setup

0

Press

Counts the number of

hours Override has

been active. Press FAN

to reset the Override Run-

Time counter.

I6

11

FAN

Override

Press

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Page 11.4

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After your humidification system has been operating for the number of

days set in step #17 below, the Service Humidify icon will appear. This

counter keeps track of the number of days since the Service Humidify

icon was reset.

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

Setup

Counts the number of

0

1

Press days the humidifier has

been running. Press

FAN to reset the

Humidify I7

Service

Service Humidify

FAN

counter and remove the

icon from the display.

Press

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

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After the UV light has been operating for the number of days set in

step #18 below, the Service UV Light icon will appear. This counter

keeps track of the number of days since the UV light icon was last

reset.

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

1

Setup

0

Counts the number of days

since the UV Light was last

reset. Press FAN to reset

the Service UV Light counter

and remove the icon from the

display.

Press

Service

UV Light

I8

FAN

Press

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Page 11.6

SECTION 12

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Section 12 Contents:

Viewing the Heat Pump and

Reversing Valve Jumper

Setting.....................................12.2

Viewing the Electric Heat

Jumper Setting.......................12.3

1

2

Using Emergency Heat............12.4

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Steps 19 and 20 are ‘Read Only’ and may only be set with the

jumpers on the circuit board of the thermostat.

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

Setup

I9

ON = Heat Pump

operation

12

OFF

OFF = Gas Electric

operation

Press

Setup

MODE

Indicates that the

thermostat jumper

is set for an O

20

reversing valve

(

energize in cooling)

or a b reversing valve

energize in heating).

(

Press

O

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

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Placing the jumper on ELEC will cause the thermostat to turn on the

fan immediately any time there is a heat demand. Since most gas

furnaces control the fan, this feature should be off unless it is

necessary for the thermostat to energize the fan with first stage heat.

Step 21 is ‘Read Only’ and may only be set with the jumpers on the

circuit board of the thermostat.

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

1

2

Setup

ON indicates that the

2

i

thermostat jumper is

set for Electric Heat

operation, or OFF for

Gas/Electric or Heat

Pump operation.

OFF

Press

EH

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

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ENTER EMERGENCY HEAT: Only available if you have a Heat Pump

installed. To initiate the Emergency Heat feature, press the FAN

button. While holding the FAN button press the UP button. The

Cool setpoint display will read ‘EH’ (emergency heat).

I2:00Pm

Su

Press for

Emergency Heat

HEAT

73

74

FAN

OPERATION: During Emergency Heat operation the

thermostat will turn on the fan and the 2nd stage of heat

when there is a demand for heat. Also during Emergency

Heat the 1st stage of heating or cooling will be unavailable.

1

2

EXIT EMERGENCY HEAT: Follow the same steps as entering

Emergency Heat by pressing the FAN and UP buttons. During

Emergency Heat, only OFF and HEAT modes are available by

pressing the MODE button.

Page 12.4

SECTION 13

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Section 13 Contents:

Adjusting the Heat/Cool

Differential..............................13.2

Adjusting the Cycles

Per Hour..................................13.3

Adjusting the Deadband..........13.4

Adjusting the Minutes of

1

3

Run-Time Before the

Next Stage...............................13.6

Selecting 2nd Stage Turn

Off Temperature.....................13.7

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The Heat and Cool setpoints will not be allowed to come any closer to

each other than the value in this step. This minimum difference is

enforced during Auto-Changeover operation.

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

Setup

Adjust the minimum

22

COOL

difference between

cooling & heating

setpoints.

HEAT

(0 - 6 )

Press

2

PROGRAM

1

3

Press the PROGRAM button to leave the Setup screens. If no buttons

are pressed, the display will leave the setup screens after 30 seconds.

Note: To increase the spread between the heating and cooling

setpoints, press the MODE button until only the heat setpoint is

displayed. Adjust the desired setpoint. Wait two seconds after

adjusting the set point so the thermostat can accept the change.

Press the MODE button until only the cool setpoint is displayed.

Adjust the desired setpoint. Wait two seconds after adjusting the

set point so the thermostat can accept the change. Press the

MODE button again to enter the Auto-Changeover mode where

both the heat and cool setpoints are displayed.

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The Cycles Per Hour setting limits the number of times per hour

your HVAC unit may energize. For example, at a setting of 6 cycles

per hour the HVAC unit will only be allowed to energize once every 10

minutes. The Cycles Per Hour limit may be overridden and reset by

pressing the UP or DOWN buttons on the thermostat.

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

Setup

Select the cycles per

hour limit.

23

d=cycles per hour

limit defeated.

d1=d + defeat 5 min.

compressor lockout.

1

3

Press

(d1, d, 2 - 6)

6

Cy

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

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MULTI-STAGE OPERATION - Controls up to three Heat and two Cool

stages.

The 2nd Stage of heat or cool is turned on when:

(

A) The 1st Stage has been on for the time required (step #27,

page 13.6). It is adjustable from 0-60 minutes and the default

is two minutes.

And

(

B) The temperature spread from the setpoint is equal to or greater

than: the setpoint plus the 1st stage deadband (step #24, next

page), plus the 2nd stage deadband (step #25, next page).

This 2nd stage deadband is adjustable from 0-10 degrees and

the default is two degrees.

The 3rd Stage of Heat is turned on when:

(A) The 2nd stage has been on for the time required (step #28,

page 13.6). It is adjustable from 0-60 minutes and the default

is two minutes.

And

1

3

(B) The temperature from the setpoint is equal to or greater

than: the setpoint plus the 1st stage deadband (step #24, next

page), plus the 2nd stage deadband (step #25, next page)

plus the 3rd stage deadband (step #26, next page). This 3rd

stage deadband is adjustable from 0-10 degrees and the

default is two degrees.

Heating

Cooling

Deadband

db 3

Deadband

db 2

db 1

db 2

(adj. 0-10 )

(adj. 1-6 )

(adj. 0-10 )

3

rd Stage

turn on

2nd Stage

turn on

1st Stage

turn on

Heat

Cool

1st Stage

turn on

2nd Stage

turn on

Setpoint Setpoint

DECREASE

TEMPERATURE

INCREASE

The above figure assumes the minimum on time for the prior stage has

been met to allow the next stage to turn on, once the deadbands have

been exceeded.

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For more detailed information, please see the explanation on the

previous page.

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

Setup

Adjust the deadband

for the 1st stage.

24

(1 - 6 )

2

Press

MODE

1

3

Setup

25

Adjust the deadband

for the 2nd stage.

(0 - 10 )

Press

2

MODE

Setup

26

Adjust the deadband

for the 3rd stage.

(0 - 10 )

Press

2

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

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For more detailed information, please see the explanation on page 13.4.

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

Setup

0

:02

27

Adjust the amount of

time stage 1 must be

on before stage 2 turns

on.

(0 - 60 min.)

Press

2

MODE

Setup

0

:02

13

2

8

Adjust the amount of

time stage 2 must be

on before stage 3 turns

on.

Press

(0 - 60 min.)

PROGRAM

3

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

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If ON is selected, the second stage of cooling or heating will remain

energized until the thermostat reaches the setpoint on the thermostat

display.

If OFF is selected, the second stage of cooling or heating will turn off

after reaching the 1st stage deadband (see page 13.4 for more

information).

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

1

3

On

Setup

Select On or Off:

On - 2nd stage will

remain on until

29

setpoint is reached.

Off - 2nd stage will

turn off after reaching

OFF

Off

Press

1

st stage deadband.

2

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Page 13.7

SECTION 14

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Section 14 Contents:

Configuring a Thermostat Output

Jumper for Programmable

Output Operation...................14.2

Time-Based Control of the

Programmable Output...........14.3

Temperature-Based Control of

the Programmable Output.....14.6

1

4

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To control one of the MISC outputs using time, temperature, or

Internet/phone based operation, place the MISC1, or MISC2, or

MISC3 jumper on the terminal labeled PROG (see diagram below).

This extra output will supply 24VAC to the selected MISC terminal

based on the programming described in the following pages. Only

one of the three outputs (MISC1, MISC2, or MISC3) is required to

have this jumper. For more information regarding the MISC1, MISC2,

and MISC3 outputs, please see section 21.

In the diagram below, the MISC1 jumper has

been set for PROG operation.

ELEC

GAS

W3

PROG

HUM

W3

PROG

HUM

HP

GAS

DEHUM

ECON

MISC3 MISC2 MISC1

(

O

M

YNI SL2CY 1)

B

W1

W2

1

4

Y1

G

MISC1

Rs2

DEHUM

ECON

MISC2

CK1

CKGND

R

MISC3

RS+5

Rs1

Y2

(MISC1

MOI DN US LT EA LWL I HT UH MS IED

IT

YI NG

N

S

RSGND

ELEMENT OUTWARD

C

MISC3 MISC2 MISC1 ONLY)

IMPORTANT CAUTION

NEVER PUT MORE THAN ONE JUMPER

ON THE SAME MISC JUMPER BLOCK!

THIS MAY DAMAGE THE THERMOSTAT

AND VOID YOUR WARRANTY

MISC3

OK

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To operate one of the MISC outputs using time-based operation, set

Advanced Setup step #30 (below) for Time i8:88. This extra output

will supply 24VAC to the selected MISC terminal, which is especially

useful for devices that require a start and stop time. Refer to page

1

4.4 - 14.5 for more details on programming this output.

Possible TIME scenarios:

1

) An exterior lighting system that needs to be energized every

day between the hours of 8pm and 1am.

2

) A sprinkler system that needs to be energized every day

between the hours of 2am and 4am.

Note: Press the MODE

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

button momentarily

to move through the

setup screens. Press

and hold the MODE

PROGRAM

button to move back-

wards through the 14

Press the MODE button repeatedly

until this setup screen appears.

MODE

setup screens.

OFF

Time = I8:88

Temp = 88

Aux

Setup

I8:88

Press the UP button to

set the programmable

output for time based

operation. The digits in the

clock area will appear.

30

Press

MODE

Continued on

the next page

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Setup

NC Programmable Output Polarity:

NC = Normally Closed to turn off

between the start and stop times

in steps 34 and 35.

3 i

NO = Normally Open to operate

between the start and stop times

NO in steps 34 and 35.

Press

MODE

Setup

7

-Day

Select 7-Day or 1-Day

Programming:

-Day = Different program

for each day.

-Day = Same program

every day.

32

7

Press

1

Day

1

-Day

7

MODE

If Step 32 is set for 1-Day, then Day of the

Week and Copy functions do not appear or apply.

Setup

Mo

1

4

33

Select the day of

the week

Press

MODE

Am

Setup

7:00

Start

Adjust the program-

mable output start time

for Monday.

Mo

34

(24 Hours)

Press

MODE

Continued on

the next page

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Setup

9

:00Pm

Stop

Mo

35

Adjust the programmable

output stop time for Monday

Press

If Step 32 is set for 1-Day, then Day of the

Week and Copy functions do not appear or apply.

MODE

Yes

Tu

Select Yes to copy the

previous day’s program

to this day.

If No is selected:

No

If Yes is selected:

1

4

Selecting Yes, then pressing FAN will copy the

previous day’s program. If yes is selected each

time, this routine will repeat.

Press

FAN

If No is selected, as in previous steps, flashing prompts for input will appear for

the start and stop times for the next day.

Press

Once configuration of the programmable output has been

completed, press the MODE button to move on to the next

setup step, or press the PROGRAM button to exit Advanced

Setup.

MODE

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To operate a MISC output using temperature-based operation,

program advanced setup step #30 (below) for temperature 88 .

This extra output will supply 24VAC to the selected MISC terminal

based on the temperature of RS1 and the setpoint in step #36 (below).

Possible TEMPERATURE scenario:

1

) An exhaust fan in the attic of a store that needs to be energ-

ized when the attic temperature is above 85 degrees.

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

OFF

Time = I8:88

Temp = 88

Aux

Setup

Press the UP button twice

to set the programmable

output for temperature-

based operation. The

large temperature digits

will appear.

30

1

4

Press

MODE

88

Setup

Programmable Output Polarity:

NC = Normally Closed to operate

when the setpoint is less than

the setpoint in step #36.

NC

3

i

NO = Normally Open to operate

when the setpoint is equal to or

greater than the setpoint in step

Press

MODE

NO

#

36.

Setup

36

Adjust the programmable

output setpoint.

o

Press

(35-125 )

PROGRAM

80

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

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To operate a MISC output using Internet/phone-based operation,

program advanced setup step #30 for Aux (below). This terminal is

especially useful for devices that can be energized via the Internet.

Telephone control may also be available when the thermostat is

connected to the Internet.

Possible REMOTE scenarios:

1

) Arm the alarm system in your building after you have left for

the day.

2

3

) Turn off your sign lights after arriving home.

) Turn on your interior lights while you’re closed.

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

OFF

Time = I8:88

Temp = 88

Aux

14

Setup

Press the UP button three

times to set the

30

programmable output

for Aux (web-based

operation).

AUX

Press

MODE

Setup

NC Programmable Output Polarity:

NC = Normally Closed to operate

when programmed to be OFF

through the phone or internet.

NO = Normally Open to operate

when programmed to be ON

3 i

Press

NO through the phone or internet.

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Page 14.7

SECTION 15

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Section 15 Contents:

Installing the Remote

Sensors...................................15.2

Controlling or Reading the

Remote Temperature (RS1)...15.3

Averaging the Remote Sensor

(RS1) with the Thermostat

Sensor.....................................15.4

1

5

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Up to eight wired or wireless remote sensors may be installed on the

thermostat (RS1) to control the temperature in other rooms. If more

than one sensor is connected to (RS1) the thermostat will average the

sensors to determine the displayed temperature reading. One wired or

wireless remote sensor may be installed to read the outside temp-

erature (RS2). If a sensor(s) is connected to RS1 and is programmed

to control the thermostat, the degree icon on the thermostat will blink

once per second to indicate that a remote sensor reading is being dis-

played. The wired sensor can be connected to the thermostat with up

to 150’ of 18 ga., 300’ of 20 ga., or 450’ of 22 ga. unshielded, therm-

ostat wire. If multiple sensors are wired to the thermostat, then the

total wiring distance of the furthest sensor should be used in determin-

ing the appropriate wire gauge. The wired sensor can be connected to

the thermostat using a two or three wire installation. If a two wire instal-

lation is required, then RS+5 must be connected to RSGND (see below).

This wire MUST be completely separated from the thermostat

or any other control wiring and must NOT be in the same

conduit as high voltage wiring.

RS-GND

RS

RS+5

1

5

W2

W1/O/B

MISC1

RS2

Y1

G

RS2

MISC3

RS+5

RS1

MISC2

CK1

CKGND

R

RSGND

C

RS-GND

RS

RS+5

RS1-1

RS1-2

RS1-3

RS1-4

See the Remote Sensor accessory for further details.

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The thermostat may be programmed to only READ the remote sensor,

or to CONTROL to the remote sensor. Refer to advanced setup step

37, below.

#

Read Only Sensor (RS1): If step #37 is set to only READ to the

remote sensor, the thermostat will not use this sensor for temp-

erature control. This sensor may be viewed by entering advanced

setup (see below) and pressing and holding the MODE button to

scroll backwards one step to setup step #48 (see page 22.4).

Control Sensor (RS1): If step #37 is set to CONTROL to the remote

sensor, the thermostat will ignore the reading of its internal

temperature sensor and only display the temperature reading from

the remote sensor. The degree icon on the thermostat will blink

once per second to indicate that a remote sensor reading is being

displayed.

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

1

5

Press the MODE button repeatedly

until this setup screen appears.

MODE

Setup

YES

Optional Remote Sensor:

37

YES = Control to Remote

Sensor RS1.

Remote

NO = Read Only Remote

Sensor RS1.

Press

NO

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

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If step #37 is set to control to the remote sensor, the thermostat will

ignore the reading of its internal temperature sensor and only display

the temperature reading from the remote sensor. The degree icon on

the thermostat will blink once per second to indicate that a remote

sensor reading is being displayed.

If step #38 is set to ON (see below), the thermostat will average its

internal sensor with the wired temperature sensor connected to RS1.

If multiple remote temperature sensors are installed on RS1, they will

automatically average together. The temperature displayed will be the

average of the thermostat’s internal sensor and the remote (RS1)

sensor(s).

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

1

5

Optional Remote Sensor

Operation:

Setup

On

38

ON = Averages thermostat

sensor with Remote

Sensor 1.

OFF

Remote

OFF = Does not average

thermostat sensor

with Remote Sensor 1.

Press

Off

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Page 15.4

SECTION 16

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Section 16 Contents:

Dry Contact Operation............ 16.2

Dry Contact Polarity.................16.2

Dry Contact Programming.......16.3

Random Start Operation..........16.4

1

6

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If the dry contact is going to be used, select YES in step #39. If the

dry contact is not going to be used, select NO in step #39 below.

DRY CONTACT POLARITY - The terminals may be set to be

Normally Open (NO) or Normally Closed (NC) in step #40.

If NO is selected the dry contact will operate when it is forced

closed. If NC is selected, the dry contact will operate until it is

forced open.

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

Setup

YES

39

Set to YES if the dry

contact will be used.

Set to NO if the dry

contact will not be used.

Press

NO

MODE

Step 40 appears only if step 39 is “YES”.

1

6

Setup

NC

40

Dry Contact Polarity:

Normally Closed (NC)

Normally Open (NO)

Press

PROGRAM

NO

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

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OCCUPIED 1 OR SERVICE THE CONDENSATE DRAIN PAN - If

Occupied 1 is selected in step #41 (below), when the dry contact is

energized the thermostat will be forced into Occupied 1 setpoints

and the Occupied 1 icon will blink (Section 6). The thermostat must

be in Program On mode for this feature to have any effect.

If Service Pan is selected, when the dry contact is energized the

thermostat will lockout Y1 (compressor) and write Service Pan on

the display.

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

Step 41 appears only if step 39 is “YES”.

Service Pan

Select Service Pan to lockout

Setup

4

i

Y1 when the dry contact is

energized. Select Occupied 1

to enable Occupied 1 setpoints

when the dry contact is

energized.

Press

occupied

1

PROGRAM

Occupied 1

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

NOTE: If Service Pan is selected and the dry contact was closed at least once, the

Service Pan icon will remain on the display to alert the user that a problem has

occurred. This icon will be cleared once a button is pressed.

1

6

Occupied 1

Service Pan

W2

W1/O/B

OR

W2

W1/O/B

MISC1

RS2

Y1

G

MISC1

RS2

Y1

G

MISC3

RS+5

RS1

MISC2

CK1

CKGND

R

MISC3

RS+5

RS1

MISC2

CK1

CKGND

R

RSGND

C

Connect wires to a time

clock or other device to

force the thermostat into

Occupied 1.

Connect wires to a device that

will complete the circuit betw-

een CK1 and CKGND when the

Condensate Drain Pan is full.

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This feature allows a 2 to 30 second delay before energizing

the thermostat outputs after any of these events:

Loss of Power to the thermostat: When power to the thermostat

is interrupted and then restored, Random Start will lockout the

outputs of the thermostat for a random amount of time. This

delay helps to keep multiple thermostats from energizing their

outputs at the same time after a power outage.

Changing from an Unoccupied time period to an Occupied

time period: If the thermostat is running in the Program On mode

and the start time for an Occupied period forces the thermostat

from Unoccupied to Occupied 1, Random Start will lockout all

outputs of the thermostat for a random amount of time. This

delay helps to keep multiple thermostats from energizing their

outputs at the same time each day.

Closure of the Dry Contact to force Occupied 1 time period:

If step #41 (previous page) is programmed for Occupied 1, then

Random Start will lockout all outputs of the thermostat for a

random amount of time when a Dry Contact closure occurs

(depending on step #40). This delay helps to keep multiple

thermostats from energizing their outputs each time the Dry

Contact is used.

1

6

Sensing of a light source by the Light Sensor to force

Occupied 1 time period:

If step #42 (page 17.2) is programmed YES for Light Activated

operation, Random Start will lockout the outputs of the thermostat

for a random amount of time when a light source forces the

thermostat into Occupied 1. This delay helps to keep multiple

thermostats from energizing their outputs each time the lights are

turned on.

Page 16.4

SECTION 17

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Section 17 Contents:

Setting up the Thermostat

for Light Activated

Operation................................17.2

Adjusting the Light Sensor.....17.3

1

7

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A light sensor is provided on the thermostat for light activation. If the

thermostat is set up to be light activated, the thermostat will enter

Occupied 1 and blink the Occupied 1 icon when a light source is

detected. When the thermostat is set up to be light activated, the time

period programming for each day should be set to OFF (Section 6).

The thermostat must be in Program On mode for light activation to

have any effect. Page 17.3 explains how to adjust the light sensitivity

for this type of operation.

NOTE: Light activation does not work in Holiday mode (Section 21).

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

Setup

YES

Select YES if the

42

thermostat should be

Light Activated.

Select NO to allow only

Time Period Programming

17

(Section 6).

Press

NO

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

The Light Sensor is located on

the top of the thermostat.

3

3CS450-01

Light Sensor

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The light sensor can be adjusted for variable degrees of sensitivity.

The sensitivity adjustment screw is located on the side of the

thermostat, as illustrated below. Turning the screw clockwise

increases the sensitivity of the sensor to light.

To check for correct sensitivity, place the thermostat in the Program On

mode. When the lights are on the thermostat should enter Occupied 1

and blink the Occupied 1 icon. If the thermostat does not enter

Occupied 1 while the lights are on, use the supplied screw driver to

turn the light sensor screw clockwise until the Occupied 1 icon appears

on the display. The thermostat should enter an unoccupied period

when the lights are off. If the sensor does not enter an unoccupied

period when the lights are turned off, use the supplied screw driver to

turn the light sensor screw counterclockwise until the Unoccupied icon

appears on the display, with the lights off.

The Light Sensor Adjustment Screw

is located on the side of the thermostat.

Light Sensor

Adjustment Screw

Turn the screw clockwise

to INCREASE light sensor

sensitivity

1

7

Turn the screw counter-

clockwise to DECREASE

light sensor sensitivity

Due to varying lighting conditions, light activation may

not be suitable for all installations.

Page 17.3

SECTION 18

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If the thermostat is configured to be programmable (Section 4), and

Energy Save has been selected in step #43 (below), the room will

attempt to reach the selected comfort temperature at the exact time

programmed into the thermostat. Energy Save, or more commonly

known as Smart Recovery, only works when the thermostat enters

Occupied 1 from Unoccupied. For example, if the Unoccupied

program is set for 6pm at 55°F heating and 85°F cooling, and the

Occupied 1 program is set for 8am at 72°F heating and 75°F cooling,

the thermostat will turn the system on before 8am in an effort to bring

the temperature to its correct setting at exactly 8am.

The P374-2900 learns from experience, so please allow 4-8 days

after a program change or after initial installation to give Energy Save

time to adjust to local weather, the construction of your business, and

your heating and cooling system.

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

Setup

On

43

Select Energy Save

on or off.

18

OFF

Press

Off

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Page 18.1

SECTION 19

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Section 19 Contents:

Setting and Resetting the

Service Filter (Fan Run-Time)

Alerts........................................19.2

Setting and Resetting the UV

Light Run-Time Alerts.............19.3

Setting and Resetting the

Humidify Run-Time Alerts......19.4

1

9

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This counter keeps track of the number of hours of fan run-time

whether the fan is energized in the Heating or Cooling modes, or in

stand alone fan operation. The Service Filter icon will appear after the

preset number of hours of fan run-time in step #45 (below) has been

achieved. Setting this counter to zero in step #45 will prevent the

Service Filter icon from ever appearing.

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

Hours the fan has

run since last reset

Setup

0

Press

44

Service Filter

Reset the counter to 0 to

remove the Service Filter

icon from the display.

FAN

Press

MODE

Setup

0

Adjust the number of

hours, in increments of

45

Service Filter

5

0, the fan will run

before the Service

Filter icon appears on

the display. 0 = off.

1

9

Press

PROGRAM

(0 - 1950 hours)

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

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This counter keeps track of the number of days since the UV Light

counter has been reset. The UV Light icon will appear after the

number of days has been achieved, as shown in step #46 (below).

Setting the counter to zero in Step #46 will prevent the Service UV

Light icon from ever appearing.

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

Days since the UV Light

icon has been reset

Setup

0

Press

I8

Service

UV Light

Reset the counter to 0 to

remove the Service UV

Light icon from the display.

FAN

Press the MODE button repeatedly

until this setup screen appears.

MODE

Setup

1

9

0

46

Adjust the number of days Service

UV Light

in increments of 10 before

the UV Light icon appears

on the display. 0 = off.

Press

(0 - 1990 days)

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

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This counter keeps track of the number of days since the Service

Humidify icon was last reset; this icon will appear after the number of

days set in step #47 (below) has elapsed. Setting this counter to zero

in step #47 will prevent the Service Humidify icon from ever appearing.

MODE

Press the MODE button. While holding

the MODE, press the PROGRAM

button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

PROGRAM

Press the MODE button repeatedly

until this setup screen appears.

MODE

Days since the last reset

of the Service Humidify

counter.

Setup

0

Humidify

I7

Service

Press Reset the counter to 0 to

remove the Service Humidify

icon from the display.

FAN

Press the MODE button repeatedly

until this setup screen appears.

MODE

Setup

0

Adjust the number of days

in increments of 10 before

the Service Humidify icon

appears.

Humidify 47

Service

Press

0

= Off

1

9

PROGRAM

(0 - 1990 days)

Press the PROGRAM button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

The humidifier run-time alert does not take the place of

any humidifier manufacturer’s recommended maintenance

plan; it only serves as a helpful reminder.

Page 19.4

SECTION 20

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When the thermostat is programmed for a Holiday mode, it will take

effect at 12:00 am of the next day. In order for the Holiday mode to

take effect the thermostat must be in the Program On mode.

The thermostat will control to the Unoccupied cooling and heating

setpoints set in Section 6, pages 6.2 and 6.3.

Holiday setpoints will be enforced for the number of days specified in

step #1 (0 - 99 days).

Press

Press the HOLIDAY button to enter

the Holiday programming setup

steps.

HOLIDAY

Setup

Select the number of days

I

that the Holiday schedule

will be in effect. A value

of 0 disables Holiday

mode.

Press

(0 - 99 days)

0

y

HOLIDAY

Press the HOLIDAY button to exit the setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

2

0

You cannot set the Heat setpoint any higher than the Cool setpoint minus

the deadband setting in Advanced Setup step #22 on page 13.2.

Page 20.1

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HOLIDAY DISPLAY - When the thermostat is placed into the

Holiday mode, the thermostat will display the screen shown below.

2

y

To return the thermostat to normal operation from Holiday mode, press

the HOLIDAY button and adjust the number of days in step #1 to zero

see previous page).

(

Press the HOLIDAY button to return to normal operation.

OO vv ee rr rr ii dd ii nn gg tt hh ee HH oo ll ii dd aa yy MM oo dd ee

Pressing the OVERRIDE

button during Holiday Mode

will temporarily force the

thermostat into Occupied 1

comfort settings for 30 min.

2

y

The remaining Override time

will alternate with the clock

display.

Press

7

:56 Pm

OVERRIDE

The Override timer can be

set up to a maximum of four

Program On

:

30

We

74

COOL

(

4:00) hours, in increments

of 30 minutes. If the timer

has been set for the max-

imum time, the next press of

the OVERRIDE button will

reset the timer, returning the

thermostat to the correct time

period program for the day.

occupied

1

HEAT

2

0

Override

65

72

Page 20.2

SECTION 21

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Section 21 Contents:

Configuring the Jumpers........21.2

Explanation of Jumper

Settings..................................21.3

2

1

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For additional flexibility, your thermostat has three configurable

outputs. These outputs are designed to have different functions

depending on how the jumpers are set (below).

Each output, labeled MISC1, MISC2, and MISC3 may be set for one

of the five choices available.

In the diagram below, the MISC3 jumper has been set for HUM*

(humidification) operation, the MISC2 jumper has been set for

DEHUM* (dehumidification) operation, and the MISC1 jumper has

been set for PROG (programmable) operation.

ELEC

GAS

W3

PROG

HUM

W3

PROG

HUM

HP

GAS

DEHUM

ECON

MISC3 MISC2 MISC1

(

O

M

YNI SL2CY 1)

B

W1

W2

Y1

G

MISC1

RS2

DEHUM

ECON

MISC2

CK1

CKGND

R

MISC3

RS+5

Rs1

Y2

(MISC1

MOI DN US LT EA LWL I HT UH MS IED

ELEMENT OUTWARD

IT

YI NG

N

S

RSGND

C

MISC3 MISC2 MISC1 ONLY)

*

The Humidity Module (sold separately) must

be installed to operate a humidification

and/or dehumidification system.

CAUTION

NEVER PUT MORE THAN

ONE JUMPER ON THE SAME

MISC JUMPER BLOCK!

DOING SO MAY DAMAGE

YOUR THERMOSTAT.

21

MISC3

OK

Page 21.2

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W3 JUMPER SETTING

If the jumper for MISC1, MISC2, or MISC3 is set to W3, the corresponding MISC screw terminal

on the backplate will control a third stage of heat.

W3 MULTI-STAGE OPERATION EXPLAINED - PAGE 13.4

The 3rd Stage of Heat is turned on when:

(

A) The 1st and 2nd stages have been on for the time required (steps 27

and 28, page 13.6). It is adjustable from 0-60 minutes and the default

is two minutes.

And

(

B) The temperature from the setpoint is equal to or greater than: the set-

point plus the 1st stage deadband (step #24, 13.5), plus the 2nd stage

deadband (step #25, 13.5) plus the 3rd stage deadband (step #26,

1

3.5). This 3rd stage deadband is adjustable from 0-10 degrees and

the default is two degrees.

Heating

Cooling

Deadband

db 3

Deadband

db 2

db 1

db 2

(adj. 0-10 )

(adj. 1-6 )

(adj. 0-10 )

3

rd Stage

2nd Stage

turn on

1st Stage

turn on

Heat

Cool

1st Stage

turn on

2nd Stage

turn on

Setpoint Setpoint

DECREASE

TEMPERATURE

INCREASE

PROG JUMPER SETTING

If the jumper for MISC1, MISC2, or MISC3 is set to PROG, the corresponding MISC screw

terminal on the backplate will control a pilot relay or other accessory.

PROGRAMMABLE OUTPUT - SECTION 14

This jumper setting allows the MISC outputs to control a pilot relay by time,

temperature, or a signal from the Internet/Phone. The following are three

possible scenarios:

By Time: A device that requires a start and stop time. For example,

2

1

an exterior lighting system that needed to be energized every day

between the hours of 8pm and 1am.

By Temperature: An exhaust fan that needs to energize whenever

the temperature from RS1 rises above 90 degrees F.

By Remote: Remotely arming a security system through the web or phone.

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HUM JUMPER SETTING

If the jumper for MISC1, MISC2, or MISC3 is set to HUM, the corresponding MISC screw

terminal on the backplate will control a humidification system.

HUMIDIFICATION OPERATION - SECTION 9

If your HVAC unit is equipped with a humidification system and the Humidity

Module (sold separately) has been installed, the thermostat will provide power

to the MISC1, MISC2, or MISC3 terminal of the thermostat when the humidity in

the home falls below the humidity setpoint you have chosen. The value for this

setpoint ranges from 0% to 60%. If no humidity is desired or if a humidification

system has not been installed, set the value to 0%.

DEHUM JUMPER SETTING

If the jumper for MISC1, MISC2, or MISC3 is set to DEHUM, the corresponding MISC screw

terminal on the backplate will be connected to the dehumidification terminal of a furnace board.

NOTE: Not all furnaces have a dehumidification terminal.

DEHUMIDIFICATION OPERATION - SECTION 10

If your HVAC unit is equipped with a dehumidification system the thermostat will

operate in one of two ways.

1

) Normally Closed (NC): The thermostat will de-energize the MISC1, MISC2,

or MISC3 terminal of the thermostat (this MISC terminal is connected to the

DEHUM terminal on your furnace) to allow the fan to run in low speed when

the humidity in the building is above the dehumidify setpoint you have

chosen and there is a call for 1st stage cooling.

2

) Normally Open (NO): The thermostat will energize the MISC1, MISC2, or

MISC3 terminal of the thermostat (this MISC terminal is connected to the

DEHUM terminal on your furnace) to allow the fan to run in low speed when

the humidity in the building is above the dehumidify setpoint you have

chosen and there is a call for 1st stage cooling.

2

1

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ECON JUMPER SETTING

If the jumper for MISC2 or MISC3 is set to ECON, the corresponding MISC screw

terminal on the backplate will be connected to an economizer.

ECONOMIZER OPERATION - If your HVAC unit is equipped with an

economizer system, the thermostat will provide power to the MISC2 or

MISC3 terminal of the thermostat when the thermostat is in an occupied

time period. The MISC2 or MISC3 terminal will be de-energized when the

thermostat is in an unoccupied time period.

Y2 JUMPER SETTING

If the jumper for MISC1 is set to Y2 the MISC1 screw terminal on the backplate will control a

second stage of cooling.

Y2 OPERATION - SECTION 13

Control up to two Cool stages.

The 2nd Stage of cool is turned on when:

(

A) The 1st Stage has been on for the time required (step #27,

page 13.6). It is adjustable from 0-60 minutes and the default

is two minutes.

And

(

B) The temperature spread from the setpoint is equal to or greater

than: the setpoint plus the deadband (step #24, page 13.5), plus

the 2nd deadband (step #25, page 13.5). This 2nd deadband is

adjustable from 0-10 degrees and the default is two degrees.

Cooling

Deadband

db 1

Deadband

db 2

(adj. 1-6 )

(adj. 0-10 )

Cool

1st Stage

turn on

2nd Stage

turn on

2

1

Setpoint

TEMPERATURE

INCREASE

Page 21.5

SECTION 22

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Section 22 Contents:

Resetting the Thermostat to the

Factory Default Settings........22.2

Calibrating the Temperature

and Humidity Sensors...........22.3

Viewing the Remote

Temperature Sensors............22.4

2

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If, for any reason, you desire to return all the stored settings back to

the factory default settings, follow the instructions below.

WARNING: This will reset all Time Period and Advanced

Programming to the default settings. Any information entered

prior to this reset may be permanently lost.

I2:00Pm

Su

Place the thermostat in the

MODE

OFF

OFF mode.

72

Am Program On Setup

Press and hold the MODE

button. While holding the

I8:88Pm StartStop

SuMoTuWeThFrSa DeHumidify

Service Filter

H I

88

COOL

MODE

MODE button, press and hold Pan UV Light

the FAN button for 5 seconds. AUTO

Outside

Remote

OFFON

All icons will appear on the

Unoccupied

AUXHEAT

L O

FAN

display.

123

Override

FanOn I88 88

After all of the icons appear,

release the MODE and FAN

buttons. Then press and hold

the FAN button for 5 seconds.

FAN

I2:00Pm

Su

After the letters Fd appear on

the display (Factory Default),

release the FAN button. Press

the MODE button once to

return to normal operation.

MODE

2

OFF

72

Page 22.2

Carrier

CC aa ll ii bb rr aa tt ii nn gg tt hh ee TT ee mm pp ee rr aa tt uu rr ee aa nn dd HH uu mm ii dd ii tt yy SS ee nn ss oo rr ss

Under normal circumstances it will not be necessary to adjust the

calibration of the temperature and humidity sensors. If calibration is

required, please contact a trained HVAC technician to correctly

perform the following procedure.

I2:00Pm

Su

Place the thermostat in the

MODE

OFF mode.

OFF

72

Am Program On Setup

Press and hold the MODE

button. While holding the

MODE button, press and hold

the FAN button for 5 seconds.

All icons will appear on the

display.

I8:88Pm StartStop

SuMoTuWeThFrSa DeHumidify H I8 8

Service Filter

MODE

Pan UV Light

AUTO

COOL

Outside

Remote

OFFON

Unoccupied

AUXHEAT

L O

FAN

123

Override

FanOn I88 88

PRESS

THERMOSTAT SENSOR

Press the UP and DOWN buttons

at the same time twice. The

CALIBRATE

thermostat temperature will be

displayed and may be calibrated

using the UP or DOWN buttons.

TWICE

REMOTE SENSOR

Press the MODE button once. The

remote sensor temperature will be

MODE

displayed and may be calibrated using the

UP or DOWN buttons. If a remote sensor

is not installed, a temperature reading

Remote CALIBRATE

-127 degrees will appear.

HUMIDITY SENSOR

Press the MODE button once. The

relative humidity at the thermostat will be

displayed and may be calibrated using the

UP or DOWN buttons.

MODE

CALIBRATE

2

After calibration is complete, press the MODE button once to save your

changes and return to normal operation.

Page 22.3

Carrier

VV ii ee ww ii nn gg tt hh ee RR ee mm oo tt ee TT ee mm pp ee rr aa tt uu rr ee SS ee nn ss oo rr ss

Each sensor is programmed with a “hard-coded” address that the

thermostat “scans” in order from lowest to highest. Therefore, in

order to determine which sensor corresponds to the number on the

setup screen you will need to disconnect each sensor from the group

in order to determine which sensor number reads dashes.

MODE

Press the MODE button. While holding the MODE,

PROGRAM

press the PROGRAM button to enter Setup screens.

Note: Press the MODE

button momentarily

to move through the

setup screens. Press

and hold the MODE

button to move back-

wards through the

setup screens.

Press the MODE button repeatedly

until setup step #48 appears.

MODE

Remote

Setup

Sensor #1.

48

Remote

Setup

72

i

Remote

48

Sensor #6

Remote

Setup

Remote

Sensor #2

48

72

6

Remote

Setup

68

2

Remote

48

Sensor #7

Remote

Setup

Remote

Sensor #3

48

70

7

Remote

Setup

76

3

Remote

48

Sensor #8

Remote

Setup

Remote

Sensor #4

48

73

8

Remote

PROGRAM

Press the MODE button to

return to normal operation.

80

4

Remote

Setup

Sensor #5

48

2

Remote

65

5

Page 22.4

SECTION 23

Carrier

AA cc cc ee ss ss oo rr ii ee ss

ACCESSORY PORT - The RJ11 Jack is used to connect the

33CS450-01 to the IR Receiver P/N 33CSIRRCVR-01 for wireless

communication or the EZ Programmer P/N 33CSPGMR-01

for easy downloading or uploading of thermostat information.

The Accessory Port is located on

the bottom of the thermostat.

RJ11 Type Jack

IR RECEIVER / REMOTE CONTROL (optional accessory) - When the

IR Receiver is connected, the thermostat can be controlled using

an IR Remote Control. The thermostat may also interface with

other wireless systems in your home. For more information see the

instruction sheet for the IR Receiver (33CSIRRCVR-01).

EZ PROGRAMMER (optional accessory) - When the EZ Programmer

is connected, the thermostat Time Period Programming and

Advanced Setup Programming can be stored into the EZ

Programmer’s memory. This information can then be uploaded to

other 33CS250-01 thermostats. For more information see the

instruction sheet for the P/N 33CSPGMR-01.

2

3

Page 23.1

SECTION 24

Carrier

AA dd vv aa nn cc ee dd SS ee tt uu pp TT aa bb ll ee

Step# Description Pg# Range Df* Step# Description

Pg# Range Df*

1

2

3

Programmable

Thermostat

4.2 Yes/No

4.3 Yes/No

7.3 0, 30, 60,

Yes 27 Minutes Between

Stage 1 & 2

13.6 0-60min

2

Auto-Changeover

Thermostat

Yes 28 Minutes Between

Stage 2 & 3

2

Fan Off Delay

0

29 2nd Stage turn off at 13.7 On/Off

Off

9

0

setpoint

30 Programmable

Output

4

5

Fan Purge

Thermoglow

Backlight

7.4 0 - 3 hrs.

0

14.3 Off/Time/ Off

Temp/Aux

8.2 Auto/On/ Au-

Off

8.2 F/C

8.4 0 - 3

to 31 Programmable

14.4 NO/NC

NO

6

7

8

9

F or C

F

Output Polarity

32 7 Day/1 Day

Security Level

0

14.4 7Day/

1Day

7

Max Heat Setpoint 8.4 35 - 99

Min Cool Setpoint

8.4 35 - 99

80

Programmable Output

65 33 Programmable Output 14.4 Mo - Su Mo

1

0 Cool to Dehumidify 10.4 On/Off

1 Maximum Dehum 10.4 0 - 5

Overshoot

2 Reheat Operation 10.5 On/Off

3 DEHUM Terminal

Polarity

4 Energy Watch -

Heat Timer

5 Energy Watch -

Cool Timer

6 Override Run-Time 11.4 read only - -

7 Reset Service

11.5 read only - -

Humidify Icon

8 Reset UV Light Icon 11.6 read only - -

2.2 read only - -

Off

Output Day of the Week

34 Programmable Output 14.4 24 Hour 7am

Start Time

1

3

1

Off 35 Programmable Output 14.5 24 Hour 9pm

10.6 NO/NC NC

Stop Time

1

36 Programmable Output 14.6 35 -125 80

1

11.2 read only - -

Temp. Setpoint

37 Thermostat control 15.3 Yes/No

to RS1?

No

Off

Yes

1

11.3 read only - -

38 Thermostat Sensor 15.4 On/Off

Averaging

1

3

9 Dry Contact

Operation

0 Dry Contact Polarity 16.2 NO/NC

16.2 Yes/No

1

4

NO

Occ.

1

1 Dry Contact

Programming

16.3 Occ. 1/

Service

1

9 Heatpump Jumper

Setting

0 Reversing Valve

Jumper Setting

1 Electric Heat

1

Pan

2

12.2 read only - -

12.3 read only - -

4

2 Light Activated

3 Energy Save

17.2 Yes/No

18.1 Off/On

No

Off

2

4 Reset Service Filter 19.2 read only - -

Icon

5 Service Filter Run

Time Set

6 UV Light Run-Time 19.3 0 - 1990

Set

7 Service Humidify

Run-Time Set

2

2 Minimum Heat/Cool 13.2 0 - 6

Differential

3 Cycles Per Hour

4 Deadband/Temp.

Swing 1st Stage

5 Deadband/Temp.

Swing 2nd Stage

6 Deadband/Temp.

Swing 3rd Stage

2

4

19.2 0 - 1950

0

2

13.3 d1, d, 2-6

13.5 1 - 6

6

2

0

2

13.5 0 - 10

2

19.4 0 - 1990

0

2

8 Viewing the Remote 22.4 - -

Sensor

- -

Temperature(s)

*

Df = Factory Default Setting

2

4

Page 24.1

SECTION 25

Carrier

II nn dd ee xx

front panel, 2.2

humidity, 2.2, 5.3,

.4, 10.4

dehum, 10.6

minutes of run-

time, 13.4, 13.6

21.5, 24.1

A

9

Holiday, 2.2, 5.2,

15.3, 20.1

Accessory Port, 23.1

Alerts

turn off

mode, 1.3, 2.2, 4.2,

8.3, 22.2

temperature,

13.7, 24.1

see Run-Time

Auto

outside, 2.2, 5.2

Override, 2.2, 6.6

up, 1.2, 2.2, 8.3,

12.4

Y2 operation, 21.5

deadband, see

Deadband

adjust temperature,

1

.4, 4.8

changeover, 2.3, 4.5,

.7, 24.1

droop, see Deadband

electric/heat pump,

12.2

4

differential, see

Differential

icon, 2.3

C

fan, 7.2

indicator, 2.2

mode, 1.3

icon, 2.3

lockout, 4.3

C, 8.2, 24.1

Calibration, 22.3

Celsius, 8.2

Clock

overshoot, see

Overshoot

mode, 1.3

AuxHeat icon, 2.5

Average

program, see Program

run-time, see Run-Time

setpoint, 1.3-1.4,

6.2-6.5

remote sensors, 15.4

thermostat sensor,

display, 2.3

setting, 1.2, 3.2

Compressor Lockout,

13.3

1

5.4

to dehumidify, see

Dehumidify

automatically, 15.4

Cool

Condensate Drain Pan,

2.5, 16.3

1

st stage

deadband, see

Copy Function

see Program

B

Deadband

dehum, 10.6

minutes of run-

time, 13.4,

Cycles Per Hour, 13.3,

24.1

b reversing valve, 12.2

Buttons

down, 1.2, 2.2, 8.3,

13.6, 24.1

1

2.4

fan, 1.4, 2.2, 7.2,

2.4, 22.2

2nd stage

deadband, see

Deadband

D

1

Day,

Page 25.1

SECTION 25

Carrier

Index

display, 2.4

service pan, 16.3

Fan,

button function, see

setting, 1.2, 3.2

Deadband

st stage, 13.4-13.5,

4.1

nd stage, 13.4-13.5,

1.3, 21.5, 24.1

rd stage, 13.4-13.5,

1.3, 24.1

Random start, 16.4

Buttons

1

off time delay, 7.3,

24.1

2

3

E

on during heat, see

Electric Heat

2

Economizer

on icon, 1.4, 2.4, 7.2

purge, 7.4, 24.1

run-time, 19.2

2nd stage heat, see

Emergency Heat

speed, see Dehumidify

unoccupied, 7.2

2

ECON, 21.5

Dehumidify

operation, 21.5

EH, 12.4

cool to, 10.4, 24.1

Aux icon, 2.5, 10.5

DEHUM jumper,

Electric Heating

AuxHeat icon, 2.5

jumper setting, 12.3

24.1

1

0.6

icon, 2.5

setpoint, 10.3

Delay

Fd, 22.2

reheat, 10.5

Flashing Selection, 1.2

W2, 10.5

fan-off, see Fan

time between stages,

see Time Delay

Emergency Heat,

12.4

Energy Save, 18.1

Energy Watch

cool, 11.3, 24.1

heat, 11.2, 24.1

EZ Programmer, 23.1

G

Differential

heat and cool, 13.2,

Gas Furnace

2

4.1

humidify and

dehumidify, 9.2,

0.2

control the fan, 12.3

jumper, 12.2

Green Indicator, 2.2

1

Disabled Keypad

see Keypad Lockout

Drain Pan Overflow

Alarm, see Dry Contact

Dry Contact

F

H

F, 8.2, 24.1

Factory Defaults

caution, ii

Heat

occupied 1, 16.3, 24.1

operation, 16.2,

1st stage

settings, 22.2

resetting, 22.2

Fahrenheit, 8.2

deadband, see

Deadband

2

4.1

polarity, 16.2, 24.1

emergency heat,

Page 25.2

SECTION 25

Carrier

II nn dd ee xx

1

2.4

minutes of run-

time, 13.4, 13.6,

4.1

Hi

icon, 2.5, 5.2

security setpoint, 8.4

temperature, 5.2

Holiday

J

2

nd stage

Jumpers

deadband, see

Deadband

button, see Buttons

light activation, 17.2

mode, 20.1-20.2

programming, 20.1-

20.2

DEHUM, 21.4

ECON, 21.5

ELEC, 12.3

emergency heat,

1

2.4

minutes of run-

time, 13.4, 13.6,

4.1

electric heat, 12.3,

24.1

setpoints, 21.1

gas electric, 12.2, 24.1

heat pump, 12.2, 24.1

HUM, 9.2, 21.4

programmable output,

14.2

2

Humidify

3

rd stage

icon, 2.5

deadband, see

Deadband

W3, 21.3

service, 11.5, 19.4,

24.1

setpoint, 9.3

reversing valve, 12.2,

24.1

AuxHeat icon, 2.5

deadband, see

Humidity Module

connector, 9.2

installation, 9.2

jumper setting, 9.2

required for, 5.3,

9.1, 9.3, 10.1-10.3,

21.4, 22.3

W3, 21.3

Deadband

Y2, 21.5

droop, see Deadband

electric/heat pump,

1

2.2-12.3

K

icon, 2.3

indicator, 2.2

mode, 1.3

Keypad Lockout, 2.4,

8.3

program, see Program

run-time, see Run-

Time

I

setpoint, 1.3-1.4,

Internet-based

Operation,

L

6

.2-6.3

Heat Pump

see Programmable

Output

AuxHeat, 2.5

emergency heat,

LCD, 2.2

Light

IR Receiver, 23.1

IR Remote Control,

23.1

1

2.4

activated, 17.2-17.3,

24.1

jumper setting, 12.2

Page 25.3

SECTION 25

Ca ier

TOT Ar rL INE

Index

random start, 16.4

sensor, 17.2

adjustment, 17.3

Thermostat, 4.2,

4.4-4.5

Normally

Off Mode, 1.3, 2.3

Outdoor,

see Outside

Locked Indication

see Keypad Lockout

Lo

Open/Closed,

dry contact, 16.2

programmable

output, 14.4,

Outside

button, see Buttons

icon, 2.3

icon, 2.5, 5.2

sensor, 2.3, 5.2, 13.1-

13.2, 15.2, 22.4

viewing temperature,

2.3, 5.2, 22.4

security setpoint, 8.4

temperature, 5.2

14.6-14.7

dehum terminal,

1

0.6

Override

button, see Buttons

daily schedule, 6.6

icon, 2.3

M

O

Manual

timer, 6.6

changeover, 4.4, 4.6

cool, 4.3

O Reversing Valve,

12.2

viewing run-time,

11.4, 24.1

heat, 4.3

Occupied 1

Overshoot, 10.4, 24.1

Maximum Outdoor

Temperature, see Hi

Minimum Outdoor

Temperature,

see Lo

daily schedule, see

Program

Dry contact, 16.3

economizer

P

operation, 21.5

energy save, 18.1

icon, 1.3, 2.4

MISC

Pan, Service

jumper, see Jumpers

output, 21.2-21.5

Mode, 1.3, 2.3

Multi-stage

see Dry Contact

light activated, 17.2- Phone-based operation

17.3

see Programmable

Output

mode, 1.3, 4.6-4.7

override, 6.6

Operation, 13.4

Polarity, see Dry Contact

Preoccupancy Fan

Purge Timer, see Fan

Program,

programming, 6.2-

6

.5

programming

worksheet, back

page

N

copy, 6.4-6.5

Non-Programmable

random start, 16.4

Page 25.4

SECTION 25

Carrier

II nn dd ee xx

daily schedule, 6.2-6.4

mode, 1.3, 4.4-4.8

on at all times, 8.4

On icon, 2.3

averaging, 15.4

cool, 11.3, 24.1

heat, 11.2, 24.1

Humidification,

11.5, 24.1

calibrate, 22.3

Control to, 15.3-

15.4, 22.1

override, see Override

setpoint limits, 8.4

tips, 6.5

degree icon blink,

15.2-15.4

override, 11.4,

UV light, 11.6

icon, 2.5

worksheet, back page

Programmable Output

Internet/phone

outside temperature,

see Outside

read to, 15.3

viewing, 22.4, 24.1

wiring, 15.2

S

control, 14.7

jumper setting, 14.2,

Schedule, Daily,

2

1.3

Reset

see Program

2nd stage turn off

temperature,

13.7, 24.1

temperature-based

control, 14.6

thermostat settings,

see Factory Defaults

run-time

time-based control,

1

4.3

fan/filter, 19.2,

24.1

Security

Programmable

Thermostat, 4.2

level, 8.4, 24.1

setpoints, 8.4, 24.1

Sensor

humidify, 19.4,

UV light, 19.3,

2

4.1

outside, see Outside

remote, see Remote

thermostat, see

Thermostat

RS1, see Remote

Sensor

R

RS2, see Outside

Sensor

Random Start, 16.4

Red Indicator, 2.2

Reheat

Service

Run-Time

resetting, see Reset

setting,

filter icon, see Reset

humidify icon, see

Reset

during cool to

dehumidify, 10.5

electric heating, 10.5

function, 10.5

humidifier, 19.4,

24.1

pan icon, see Dry

Contact

service filter, 19.2

24.1

UV light, see Reset

Set Clock, see Clock

Setpoint

W2, 10.5

Remote Sensor

UV light, 19.3,

2

4.1

cool, see Cool

dehumidification, 10.3

viewing,

Page 25.5

SECTION 25

Carrier

Index

1

0.5-10.6

Time Schedule, see

Program

heat, see Heat

holiday, 20.1

humidification, 9.4

occupied, 6.2

programmable output,

U

1

4.6

security, 8.4

Unoccupied

icon, 2.3

unoccupied, 6.2-6.3

Setup Icon, 2.4

operation, 6.5

override, see

Override

Simplest Operation,

4

.2-4.3

Smart Fan, 7.2

Smart Recovery, see

Energy Save

setpoint, 6.2-6.3

UV Light

icon, 2.5

resetting, see Reset

run-time, see Run-

Time

T

setting, see Run-Time

Terminal, MISC, see

MISC

W

Thermostat Sensor

averaging, 15.4, 24.1

calibrate, 22.3

W3, see Jumpers

Warranty, 26.1

Web, 14.7

Time, see Clock

Time Delay,

compressor lockout,

1

3.3

cycles per hour,

3.3, 24.1

st to 2nd stage,

3.6, 24.1

nd to 3rd stage,

3.6, 24.1

1

Y

1

2

1

Y2, see Jumpers

1

Page 25.6

Section 26

Carrier

WW aa rr rr aa nn tt yy

Five-Year Warranty - This Product is warranted to be free from defects in material and

workmanship. If it appears within five years from the date of original installation, whether or

not actual use begins on that date, that the product does not meet this warranty, a new or

remanufactured part, at the manufacturer’s sole option to replace any defective part, will be

provided without charge for the part itself provided the defective part is returned to the

distributor through a qualified servicing dealer.

THIS WARRANTY DOES NOT INCLUDE LABOR OR OTHER COSTS incurred for diagnosing,

repairing, removing, installing, shipping, servicing or handling of either defective parts or

replacement parts. Such costs may be covered by a separate warranty provided by the installer.

THIS WARRANTY APPLIES ONLY TO PRODUCTS IN THEIR ORIGINAL INSTALLATION

LOCATION AND BECOMES VOID UPON REINSTALLATION.

LIMITATIONS OF WARRANTIES – ALL IMPLIED WARRANTIES (INCLUDING IMPLIED

WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE AND MERCHANTABILITY) ARE

HEREBY LIMITED IN DURATION TO THE PERIOD FOR WHICH THE LIMITED WARRANTY

IS GIVEN. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED

WARRANTY LASTS, SO THE ABOVE MAY NOT APPLY TO YOU. THE EXPRESSED

WARRANTIES MADE IN THIS WARRANTY ARE EXCLUSIVE AND MAY NOT BE ALTERED,

ENLARGED, OR CHANGED BY ANY DISTRIBUTOR, DEALER, OR OTHER PERSON

WHATSOEVER.

ALL WORK UNDER THE TERMS OF THIS WARRANTY SHALL BE PERFORMED DURING

NORMAL WORKING HOURS. ALL REPLACEMENT PARTS, WHETHER NEW OR

REMANUFACTURED, ASSUME AS THEIR WARRANTY PERIOD ONLY THE REMAINING

TIME PERIOD OF THIS WARRANTY.

THE MANUFACTURER WILL NOT BE RESPONSIBLE FOR:

1

2

3

4

5

.

Normal maintenance as outlined in the installation and servicing instructions or owner’s

manual, including filter cleaning and/or replacement and lubrication.

Damage or repairs required as a consequence of faulty installation, misapplication, abuse,

improper servicing, unauthorized alteration or improper operation.

Failure to start due to voltage conditions, blown fuses, open circuit breakers or other

damages due to the inadequacy or interruption of electrical service.

Damage as a result of floods, winds, fires, lightning, accidents, corrosive environments or

other conditions beyond the control of the Manufacturer.

Parts not supplied or designated by the Manufacturer, or damages resulting from their use.

Manufacturer products installed outside the continental U.S.A., Alaska, Hawaii, and

Canada.

6.

7.

8.

Electricity or fuel costs or increases in electricity or fuel costs for any reason whatsoever

including additional or unusual use of supplemental electric heat.

ANY SPECIAL INDIRECT OR CONSEQUENTIAL PROPERTY OR COMMERCIAL

DAMAGE OF ANY NATURE WHATSOEVER. Some states do not allow the exclusion of

incidental or consequential damages, so the above may not apply to you.

This warranty gives you specific legal rights and you may also have other rights which may vary

from state to state.

Page 26.1

Programming Worksheet

see Section 6

DAY PERIOD

Unoccupied

START TIME COOL HEAT

M

O

N

D

A

Y

Occupied 1

Occupied 2

Occupied 3

T

U

E

S

D

A

Y

Unoccupied

Occupied 1

Occupied 2

Copy Mon

Tue

No

Yes

Occupied 3

Unoccupied

W

E

D

N

E

S

D

A

Y

Copy Tue

Wed

Occupied 1

Occupied 2

Occupied 3

No

Yes

T

H

U

R

S

D

A

Y

Unoccupied

Occupied 1

Occupied 2

Occupied 3

Copy Wed

Copy Thu

Copy Fri

Thu

No

Yes

Unoccupied

Occupied 1

Occupied 2

Occupied 3

Fri

F

R

I

No

D

A

Y

Yes

S

A

T

Unoccupied

Occupied 1

Occupied 2

Occupied 3

Sat

U

R

D

A

Y

No

Yes

Unoccupied

Occupied 1

Occupied 2

Occupied 3

Copy Sat

Sun

S

U

N

D

A

Y

No

Yes

Printed on recycled paper.

P/N 88-506 Rev. 5