White Rodgers 1F86 0244 Thermostat User Manual

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Blue 2” Single Stage Thermostat

Installation and Operating Instructions

Save these instructions for future use!

Model

Programming Choices

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS

CAREFULLY BEFORE INSTALLING OR OPERATING THIS

CONTROL COULD CAUSE PERSONAL INJURY AND/OR

PROPERTY DAMAGE.

1F86-0244

Non-Programmable

APPLICATIONS

1F86-0244 Thermostat

For use with the following Class II systems:

•

Single Stage systems

Single-stage heat pump systems with no Aux heat

DO NOT USE WITH:

•

Systems exceeding 30 VAC and 1.5 amps

3-wire zoned hydronic heating systems

SPECIFICATIONS

Electrical Rating:

Battery Power................................................. mV to 30 VAC, 50/60 Hz or DC

Input-Hardwire................................................ 20 to 30 VAC

Terminal Load........................................................ 1.0 A per terminal, 1.5A maximum all terminals combined

Setpoint Range...................................................... 45° to 90°F (7° to 32°C)

Differential (Single Stage)...................................... Heat 0.6°F; Cool 1.2°F (adjustable)

Differential (Heat Pump)........................................ Heat 1.2°F; Cool 1.2°F (adjustable)

Operating Ambient................................................. 32° to +105°F (0° to +41°C)

Operating Humidity................................................ 90% non-condensing max.

Shipping Temperature Range................................ -40° to +150°F (-40° to +65°C)

Dimensions Thermostat......................................... 3-3/4” H x 4-3/4” W x 1-1/2” D

PRECAUTIONS

This thermostat is intended for use with a low voltage NEC

WARNING

Do not use on circuits exceeding speciﬁed voltage.

Higher voltage will damage control and could cause

shock or ﬁre hazard.

Class II system. Do not use this thermostat with a line voltage

system. If in doubt about whether your wiring is millivolt, line,

or low voltage, have it inspected by a qualiﬁed heating and air

conditioning contractor or electrician.

Do not exceed the speciﬁcation ratings.

Do not short out terminals on gas valve or primary

control to test. Short or incorrect wiring will damage

thermostat and could cause personal injury and/or

property damage.

All wiring must conform to local and national electrical codes

and ordinances.

This control is a precision instrument, and should be handled

carefully. Rough handling or distorting components could

cause the control to malfunction.

Thermostat installation and all components of the

system shall conform to Class II (current limited)

circuits per the NEC code. Failure to do so could cause

a ﬁre hazard.

CAUTION

To prevent electrical shock and/or equipment damage,

disconnect electric power to system at main fuse or

circuit breaker box until installation is complete.

PART NO. 37-7010B

Replaces 37-7010A

0921

www.white-rodgers.com

INSTALLATION

Battery

Door

REMOVE OLD THERMOSTAT

1. Shut off electricity at the main fuse box until installation is

complete. Ensure that electrical power is disconnected.

2. Remove the front cover of the old thermostat. With

wires still attached, remove wall plate from the wall. If

the old thermostat has a wall mounting plate, remove the

thermostat and the wall mounting plate as an assembly.

Mounting

Hole

Mounting

Hole

3. Identify each wire attached to the old thermostat using

the labels enclosed with the new thermostat.

4. Disconnect the wires from old thermostat one at a time. DO

O/B

Switch

NOT LET WIRES FALL BACK INTO THE WALL.

5. Install new thermostat using the following procedures.

Opening

for wires

Gas/Elec

Switch

ATTENTION!

Figure 1.Thermostat Base

This product does not contain mercury. However, this product

may replace a unit which contains mercury.

GAS / ELEC SWITCH

Do not open mercury cells. If a cell becomes damaged, do

not touch any spilled mercury. Wearing nonabsorbent gloves,

take up the spilled mercury and place into a container which

can be sealed. If a cell becomes damaged, the unit should be

discarded.

If your system is a heat pump, the GAS/ELEC Switch must be

set to ELEC (see Fig. 1) If your system is a single stage, the

switch must be set to GAS. The switch setting must agree with

the system conﬁguration selected in the conﬁguration menu.

Mercury must not be discarded in household trash. When

the unit this product is replacing is to be discarded, place in

a suitable container. Refer to www.white-rodgers.com for

location to send the product containing mercury.

BATTERY LOCATION

“AA” Alkaline Batteries

ATTACH THERMOSTAT BASE TO WALL

1. Remove the packing material from the thermostat. Gently

pull the cover straight off the base. Forcing or prying on the

thermostat will cause damage to the unit.

2. Place base over hole in wall and mark mounting hole

locations on wall using base as a template (see Fig.1).

Two “AA” alkaline batteries are installed in your thermostat

with a battery tag to prevent power drainage. Prior to use,

open the battery door and remove the battery tag. To open,

pull the battery door as shown by the arrow and lift open. The

two “AA” batteries will operate all functions or maintain time

and continuously display the temperature during a loss of AC

power. To replace batteries, pull the battery door shown by

the arrow and lift open. Using the polarity indicated inside the

battery door, insert the batteries. To close the battery door,

swing the door down while pulling in the direction of arrow.

Once fully down, snap the door back into position.

3. Move base out of the way. Drill mounting holes.

4. Push wires through opening in thermostat base.

5. Fasten base loosely to wall using two mounting screws.

Place a level against bottom of base, adjust until level,

and then tighten screws. (Leveling is for appearance only

and will not affect thermostat operation.) If you are using

existing mounting holes, or if holes drilled are too large and

do not allow you to tighten base snugly, use plastic screw

anchors to secure subbase.

Thermostat can be powered by system AC power or Battery. If

isnot

6. Connect wires to terminals on base using appropriate

wiring schematic (see ﬁgs. 2 through 4).

isdisplayed,thethermostatisbatterypowered.If

displayed, thermostat is system powered with optional battery

back-up. When battery power remaining is approximately half,

7. Push excess wire into wall and plug hole with a ﬁre-resistant

material (such as ﬁberglass insulation) to prevent drafts

from affecting thermostat operation.

the

will be displayed. When “Change

” is displayed,

install fresh “AA” alkaline batteries immediately. For best

results, use new premium brand alkaline batteries such as

Duracell® or Energizer®. We recommend replacing batteries

every 2 years. If the home is going to be unoccupied for an

O/B TERMINAL SWITCH SELECTION

extended period (over 3 months) and

is displayed, the

The O/B switch on this thermostat is factory set to the “O”

position. This will accommodate the majority of heat pump

applications, which require the changeover relay to be

energized in COOL. If the thermostat you are replacing or the

heat pump being installed with this thermostat requires a “B”

terminal, to energize the changeover relay in HEAT, the O/B

switch must be moved to the “B” position.

batteries should be replaced before leaving. When less than

two months of battery life remain, the setpoint temperature will

offset by 10 degrees (10 degrees cooler in Heat mode / 10

degrees warmer in Cool mode). If offset occurs, the normal

setpoint can be manually reset with

. Another offset

will occur within two days if batteries are not replaced. To

replace the batteries, set system to OFF.

WIRING DIAGRAMS

Optional Jumper for

Single Stage Heat Pump

THERMOSTAT

SYSTEM

O/B

Changeover

Relay*

Fan

Relay

Optional

Compressor

Contactor

Heat Relay

Hot

24 VAC

120 VAC

Neutral

* Changeover Relay is energized in COOL when O/B switch is in the “O” position

Changeover Relay is energized in HEAT when O/B switch is in the “B” position

TRANSFORMER

(Class II Current Limited)

Figure 2.Typical wiring diagram for single transformer single stage systems

NOTE

If safety circuits are in

only one of the systems,

remove the transformer

of the system with NO

safety circuits.

Optional Jumper for

Single Stage Heat Pump

THERMOSTAT

SYSTEM

O/B

CUT AND

TAPE OFF!

Changeover

Relay*

Fan

Relay

Limit or

Safety

Switches

Optional

HOT

120 VAC

24 VAC

Compressor

Contactor

Heat Relay

NEUTRAL

Hot

24 VAC

120 VAC

Neutral

TWO COMMONS MUST

BE JUMPERED TOGETHER!

TRANSFORMER

(Class II Current Limited)

* Changeover Relay is energized in COOL when O/B switch is in the “O” position

Changeover Relay is energized in HEAT when O/B switch is in the “B” position

Figure 3.Typical wiring diagram for two transformer single stage systems with NO safety circuits

NOTE

Polarity must be observed. If the HOT side of the

second transformer is jumpered to the COMMON side

of the first transformer a short will be made. Damage

Optional Jumper for

Single Stage Heat Pump

to equipment will occur when power is restored.

THERMOSTAT

O/B

SYSTEM

Limit or

Safety

Limit or

Safety

HOT

Switches

24 VAC

120 VAC

Switches

Changeover

Relay*

Fan

NEUTRAL

Optional

Relay

24 VAC

Auxiliary

Heating

NOTE

ACCESSORY

RELAY N.O.

CONTACT

Transformer

(Class II

Compressor

Contactor

Heat

The accessory relay scheme

is required when safety

circuits exist in both systems.

Relay

Current Limited)

COMMON

TWO COMMONS MUST

BE JUMPERED TOGETHER!

Limit or

Safety

HOT

Switches

24 VAC

120 VAC

COMMON

NEUTRAL

* Changeover Relay is energized in COOL when O/B switch is in the “O” position

Changeover Relay is energized in HEAT when O/B switch is in the “B” position

Heat Pump Transformer

(Class II Current Limited)

Figure 4. Typical wiring diagram for two transformer single stage systems with safety circuits in BOTH systems

THERMOSTAT QUICK REFERENCE

Before you begin using your thermostat, you should be familiar

with its features and with the display and the location and

operation of the thermostat buttons and switches (see ﬁg. 5).

Your thermostat consists of two parts: the thermostat cover

and the base. To remove the cover, pull it straight out from the

base. To replace the cover, line up the cover with the base and

press until the cover snaps onto the base.

Displays current temperature.

“Service”indicatesadiagnosticfaultintheheating/cooling

system. It does not indicate a fault in the thermostat.

“Change Filter” is displayed when the system has run

for the programmed ﬁlter time period as a reminder to

change or clean your air ﬁlter.

“ ” indicates power level of batteries. “Change

indicates batteries should be replaced.

”

The Thermostat Buttons and Switches

Raises temperature setting.

Figure 5.Thermostat display, buttons, and switches

Lowers temperature setting.

SYSTEM switch (COOL, OFF, HEAT).

FAN switch (ON, AUTO).

The Display

Indicatesdaysoftheweek. Indicatessetpointtemperature.

This is blank when system switch is in the OFF position.

Setpoint temperature is displayed (ﬂashing) if the

thermostat is in lockout mode to prevent the compressor

from cycling too quickly.

SYSTEM

“Save” indicates the Cool Savings feature is enabled in

the conﬁguration menu. “Save” (ﬂashing) indicates Cool

Savings feature is active.

Flame icon ( ) is displayed when the SYSTEM switch is

in the HEAT position. Flame icon ( ) is displayed ﬂashing

when thermostat is calling for heat. Snowﬂake icon ( ) is

displayed (non-ﬂashing) when the SYSTEM switch is in

the COOL position. Snowﬂake icon ( ) and is displayed

(ﬂashing) if the thermostat is calling for cool.

INSTALLER/CONFIGURATION MENU

The conﬁguration menu allows you to set certain thermostat operating characteristics to your system or personal requirements.

To enter the menu: Set your thermostat to OFF and press the and buttons simultaneously. The display will show the ﬁrst

item in the conﬁguration menu. Press and to change to the next menu item. To exit the menu, set the system switch to

Cool or Heat. If no keys are pressed within ﬁfteen minutes, the thermostat will revert to normal operation.

Conﬁguration Menu

Reference

Number

Press

Key

Displayed

(Factory

Default)

Comments

Press

to select from

listed options

Select Single Stage (SS) or

Heat Pump (HP, 1 compressor)

and

(OFF)

Select Cool Savings Feature On or OFF

(3)

1, 2, 3, 4, 5, 6

FA, SL

If CS selected On, selects Cool Savings value

CR Heat

(ME)

Select Adjustable Anticipation, cycle rate,

Heat Single Stage

CR Cool

(FA)

Select Adjustable Anticipation, cycle rate,

Cool Single Stage

(OFF)

Select Compressor lockout OFF or On

Reference

Number

Press

Key

Displayed

(Factory

Default)

Comments

Press

to select from

listed options

(On)

OFF

Select Display Light On or OFF

and

Temp

(0 HI)

4 LO to

4 HI

Select temperature display adjustment higher or

lower

^oF

^oC

Select ^oF / ^oC Display (temperature units in Fahren-

heit or Celsius)

Change Filter

(OFF)

Select ﬁlter replacement indicator OFF or On

Change Filter

(200 h)

25 to 1975

If Change Filter selected On, selects time interval for

Change Filter Indicator. (in 25 hour increments)

Returns to normal operation

6) Select Backlight Display - The display backlight improves

display contrast in low lighting conditions. When the “C”

terminal is connected, selecting backlight CdL On will keep

the light on continuously. Select backlight OFF will turn the

light on momentarily when any key is pressed. When the

“C” terminal is not connected, regardless of the backlight

selection, the light will be on momentarily when any key is

pressed.

1) System Conﬁguration - Selects SS (Single Stage) or HP

(Heat Pump) operating mode. Default conﬁguration is SS.

For Heat Pump operation choose HP.

2) Select CS (Cool Savings™) - With Cool Savings™

enabled, the thermostat will make small adjustments to

the Setpoint temperature during periods of high demand

to reduce cooling system running time and save energy.

When the cooling system has been running for more than

20 minutes, humidity in the home will be lower and a higher

setpoint temperature will feel comfortable. After 20 minutes

of run time, the thermostat will start increasing the setpoint

temperature in steps of less than one degree as the system

continues to run. These adjustments will eventually cause

the system to satisfy the thermostat and turn the system

off to reduce the energy consumption. When the Cool

Savings feature is active and making adjustments, the

display will show “Save”. The amount of the adjustments to

the setpoint temperature is dependent on the Cool Savings

value that is set, 1 being the least adjustment and 6 being

the most adjustment. With this feature set to OFF, no

change will occur when the cooling system is continuously

running during the periods of high demand. Periods of high

demand will normally occur during the late afternoon and

early evening on the hottest days of the summer.

7) Select Temperature Display Adjustment 4 LO to 4 HI -

Allows you to adjust the room temperature display up to 4°

higher or lower. Your thermostat was accurately calibrated

at the factory but you have the option to change the display

temperature to match your previous thermostat. The

current or adjusted room temperature will be displayed on

the display.

8) Select F° or C° Readout - Changes the display readout to

Celsius or Fahrenheit as required.

9) Select Filter Replacement Reminder and Set Run Time

Select the “Change Filter” reminder On or OFF. If selected

On, press

and

to select the time period from 25 to

1975 hours in 25 hour increments. In a typical application,

200 hours (default) of run time is approximately 30 days.

After the selected time of blower operation, the thermostat

will display “Change Filter” as a reminder to change or

clean your air ﬁlter. When “Change Filter” is displayed,

3 & 4) Select Cycle Rate Selection - The factory default setting

for Single Stage Heat is Medium Cycle (ME). For Single

Stage Cool the default setting is fast (FA). To change cycle

press the

and

button to clear the display and

restart the time to the next ﬁlter change. A selection of OFF

rate, press the

and

buttons.

will cancel this feature.

The cycle rate differentials for different settings are:

MODE

Fast

(FA)

Medium Slow

(ME)

0.8°F

(SL)

SS Heat

SS Cool

0.6°F

1.2°F

1.7°F

5) Select Compressor Lockout CL OFF or ON - Selecting

CL On will cause the thermostat to wait 5 minutes between

cooling cycles. This is intended to help protect the

compressor from short cycling. Some newer compressors

already have a time delay built in and do not require this

feature. Your compressor manufacturer can tell you if the

lockout feature is already present in their system. When

the thermostat compressor time delay occurs, it will ﬂash

the setpoint for up to ﬁve minutes.

OPERATION

Cooling System

CHECK THERMOSTAT OPERATION

If at any time during testing your system does not operate

properly, contact a qualiﬁed service person.

CAUTION

Turn on power to the system.

To prevent compressor and/or property damage, if the

outdoor temperature is below 50^oF, DO NOT operate

the cooling system.

Fan Operation

If your system does not have a G terminal connection, skip to

Heating System.

1. Move SYSTEM switch to COOL position.

2. Press

to adjust thermostat setting below room

1. Move fan switch to ON position. The blower should begin

to operate.

temperature. The blower should come on immediately on

high speed, followed by cold air circulation. However, if the

setpoint temperature is ﬂashing, the compressor lockout

feature is operating (see Conﬁguration menu, item 5).

2. Move fan switch to AUTO position. The blower should stop

immediately.

3. Press

to adjust temperature setting above room

temperature. The cooling system should stop operating.

Heating System

1. Move SYSTEM switch to HEAT position. If the auxiliary

heating system has a standing pilot, be sure to light it.

CAUTION

2. Press

to adjust thermostat setting to 1° above room

temperature. The heating system should begin to operate.

Do not allow the compressor to run unless the

compressor oil heaters have been operational for 6

hours and the system has not been operational for at

least 5 minutes.

3. Press to adjust temperature setting below room

temperature. The heating system should stop operating.

TROUBLESHOOTING

Reset Operation

If a voltage spike or static discharge blanks out the display

or causes erratic thermostat operation, you may need to

reset the thermostat. To reset, the System Switch must be

for approximately 10 seconds until the display goes blank. If

the thermostat has power, has been reset and still does not

function correctly contact your heating/cooling service person

or place of purchase.

in Cool or Heat. Simultaneously press

and

buttons

Symptom

Possible Cause

Corrective Action

No Heat/No Cool/No Fan

common problems)

1. Blown fuse or tripped circuit breaker.

2. Furnace power switch to OFF.

Replace fuse or reset breaker.

Turn switch to ON.

3. Furnace blower compartment door or

panel loose or not properly installed.

Replace door panel in proper position to engage safety

interlock or door switch.

No Heat

1. System Switch not set to Heat.

Set System Switch to Heat and raise setpoint above

room temperature.

2. Loos connection to thermostat or

system

Verify thermostat and system wires are securely at-

tached.

3. Heating System requires service or

thermostat requires replacement.

Diagnostic: Set System Switch to Heat and raise the set-

point above room temperature. Within a ﬁve minutes the

thermostat should make a soft slick sound. This sound

usually indicates the thermostat is operating properly.

If the thermostat does not click, try the reset operation

listed above. If the thermostat does not click after being

reset contact your heating and cooling service person or

place of purchase for a replacement. If the thermostat

clicks, contact the furnace manufacturer or a service per-

son to verify the heating system is operating correctly.

No Cool

1. System Switch not set to Cool.

Set System Switch to Cool and lower setpoint below

room temperature.

2. Loose connection to thermostat or

system.

Verify thermostat and system wires are securely at-

tached.

3. Cooling System requires service or

thermostat requires replacement

Same procedures as diagnostic for No Heat condition

except set the thermostat to Cool and lower the setpoint

below the room temperature. There may be up to a ﬁve

minute delay before the thermostat clicks in Cooling if the

compressor lock-out option is selected in the conﬁgura-

tion menu (Item 5).

Heat, Cool or Fan Runs

Constantly

1. Possible short in wiring.

2. Possible short in thermostat.

3. Possible short in Heat/Cool/Fan

system.

Check each wire connection to verify they are not shorted

or touching together. No bare wire should stick out from

under terminal screws. Try resetting the thermostat as

described below. If the condition persists, the manufac-

turer of your system or service person can instruct you on

how to test the Heat/Cool/ system for correct operation. If

the system operates correctly, replace the thermostat.

4. Fan Switch set to Fan On.

Furnace Cycles Too Fast 1. The location of the thermostat and/or

Item 3 (CR Heat) or 4 (CR Cool) in the Conﬁguration

Menu is the adjustment that controls the cycle rate. If an

acceptable cycle rate is not achieved using the FA (Fast)

or SL (Slow) adjustment contact a local service person

for additional suggestions.

or Too Slow Cooling

Cycles Too Fast or Too

Slow (narrow or wide

temperature swing)

the size of the Heating or Cooling

System may be inﬂuencing the cycle

rate.

Thermostat Setting and

Thermometer Disagree

1. Thermostat thermometer setting

requires adjustment.

The thermometer can be adjusted +/- degrees as listed in

item 7 of the Conﬁguration Menu. No other adjustment is

possible.

Blank Display and/or

Keypad Not Responding

1. Voltage Spike or Static Discharge.

If a voltage spike or static discharge occurs use the Re-

set Operation listed above.

Homeowner Help Line: 1-800-284-2925

White-Rodgers is a division

of Emerson Electric Co.

The Emerson logo is a

trademark and service mark

of Emerson Electric Co.

www.white-rodgers.com

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a l

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) (

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P u e n t e o p c i o n a l p a r a b o m b a

o n u n e n a r t n e u c n e e s o l ó s

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E L É C T R I C A S C O N E X I O

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r e q u q i e , u r e n c a l o d r e b o m d e b a

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e s t é

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f á b d r i e c a a j u s t a v d i o e n e t e r m o e s s t t a e d t e o O / B

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p i l a l s a , s

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c a m b i a r

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c o m o l í d e r m a r c a a l g u d n e a

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n u e v a s a l c a l i n p a i l s a s u ^®s e

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y n o l e p e g r r m a n i t d e e n s a j u s d t a e r m b a i e s n i a d l a o b a s e , u

e x i s t e n t e m s , o d n e t a j e o r i ﬁ c i o s

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