Lux Products PSPH521 Thermostat User Manual

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INSTALLATION AND OPERATING INSTRUCTIONS

C A U T I O N

To avoid electrical shock and

to prevent damage to the

INSTALLATION

Please read all instructions carefully

before beginning installation.

furnace, air conditioner, and

thermostat, disconnect the power

PSPH521 SERIES

TOOLS REQUIRED

#1 Phillips screwdriver (small)

Drill with 3/16-in. (4.8mm) bit

THERMOSTAT LOCATION

On replacement installations, mount the

supply before beginning work. This

can be done at the fuse box, at the

circuit breaker, or at the appliance.

PROGRAMMABLE HEAT PUMP THERMOSTAT

HEAT

DOWN

DAY

HEAT

DOWN

Easy as

1–2–3

SET

SATURDA

PROGRAM

SET

SUNDA

SET

SATURDA

PROGRAM

SET

SUNDA

RESET

PROGRAM

FAN

PROGRAM

FAN

HEA

HEAT

AUTO

SET

WEEKDA

SET

WEEKDA

OFF

FILTER

HOLD

FILTER

HOLD

COOL

PROGRAM

SET

DAY/TIME

RUN

SET

DAY/TIME

RUN

new thermostat in place of the old one unless the conditions listed below suggest otherwise. On new

installations, follow the guidelines listed below.

1. Locate the thermostat on an inside wall, about 5 ft. (1.5m) above the floor, and in a room that is

used often.

2. Do not install it where there are unusual heating conditions, such as: in direct

sunlight; near a lamp, radio, television, radiator, register, or fireplace; near hot water pipes in a wall;

near a stove on the other side of a wall.

3. Do not locate in unusual cooling conditions, such as: on a wall separating an unheated room; or in

a draft from a stairwell, door, or window.

1500

a t e n t s P e n d i n g

1500

a t e n t s P e n d i n g

SIMPLIFIED INSTRUCTIONS

Press UP/DOWN to set time.

SIMPLIFIED INSTRUCTIONS

•

TEMPORARY TEMPERATURE OVERRIDE

•Press UP/DOWN to adjust set temperature.

o clear OVERRIDE press UP/DOWN until

original set temperature appears or wait for

TO SET TIME

DAY

•

Press UP/DOWN to set time.

TEMPORARY TEMPERATURE OVERRIDE

•Press UP/DOWN to adjust set temperature.

clear OVERRIDE press UP/DOWN until

original set temperature appears or wait for

TO SET TIME

Rotate Dial to SET

•

Rotate Dial to SET

DAY/TIME.

TO SET PROGRAMS

•Rotate Dial to SET

•T

TO SET PROGRAMS

Rotate Dial to SET

•

DAY/TIME.

Press UP to change

•

Press UP to change

•

Installs Easily

Set Day & Time

Choose Heat or Cool

Complete, Easy To Read Programming And Installation Instructions Inside

LUX PRODUCTS CORPORATION • Mt. Laurel, New Jersey 08054, USA

43343-04

WARNING: Use Energizer^®or DURACELL^®Alkaline Batteries Only.

Energizer^®is a registered trademark of Eveready Battery Company, Inc.

DURACELL^®is a registered trademark of The Gillette Company, Inc.

4. Do not locate in a damp area. This can lead to corrosion that will shorten

thermostat life.

5. Do not locate where air circulation is poor, such as: in a corner or an alcove; or behind an open

door.

6. Do not install the unit until all construction work and painting has been completed.

7. This thermostat does not require leveling.

I M P O R T A N T !

Thank you for your confidence in our product. To obtain the best results from

your investment, please read these instructions and acquaint yourself with

READ

your purchase before installing your new thermostat. Then follow the

installation procedures, one step at a time. This will save you time and

minimize the chance of damaging the thermostat and the systems it controls.

These instructions may contain information beyond that required for your

particular installation. Please save for future reference.

INSTALLATION

INSTRUCTIONS

FIRST

REMOVING THE OLD THERMOSTAT

C A U T I O N

Switch electricity to the furnace and air conditioner OFF; then

Read instructions carefully

proceed with the following steps.

before removing any

1. Remove cover from old thermostat. Most are snap-on types

wiring from existing

and simply pull off. Some have locking screws on the side.

thermostat. Wires must be

These must be loosened.

FEATURES

labeled before they are

2. Note the letters printed near the terminals. Attach labels

The Active Program Period

LUX Speed Dial^®

removed. When removing

•

The Unit can be

(enclosed) to each wire for identification. Remove and label

The Set

wires from their terminals,

used with most

Liquid Crystal

Display

wires one at a time. Make sure the wires do not fall back inside

Temperature

two stage heat

ignore the color of the

the wall.

and one stage

wires since these may not

comply with the standard.

3. Loosen all screws on the old thermostat and remove it from the

wall.

cool heat pump

systems. It cannot be

used with 120 volt

heating systems. Ask your

dealer for other LUX

thermostats to control those

systems.

MORN

DAY

MOUNTING THE UNIT ON THE WALL

1. Strip insulation 3/8 in. (9.5mm) from wire ends and clean off any corrosion.

2. Fill wall opening with non-combustible insulation to prevent

drafts from affecting the thermostat.

3. Press up on the button on bottom of thermostat and swing the

body away from the base and up to remove the body from the

base.

EVE

DOWN

NIGHT

Thermostat

Body

RESET

SET

WEEKDAY

WEEKEND

PROGRAM

FAN

AUTO

EMER

HEAT

OFF

System

Switch

HOLD

COOL

SET

RUN

DAYTIME

•

The Unit is programmable.

There are four programming

periods per day. Each period

can be programmed

Fan

Switch

separately.

Be careful not to drop the body or disturb electronic parts.

You can use the built-in

time/temperature

programs, or alter them to

suit your schedule. The Unit

provides separate programs

for weekdays and weekends

- for both heating and

cooling. You can override the

programmed temperatures

for as little as one programming period or for an entire vacation.

Easy to

SIMPLIFIED INSTRUCTIONS

TO SET PROGRAMS

•Rotate Dial to SET WEEKDAY •Rotate Dial to SET

Leave the cover closed while the body is being removed from the base.

TO SET TIME

DAY

TEMPORARY TEMPERATURE OVERRIDE

•Press UP/DOWN to adjust set temperature.

•To clear OVERRIDE press UP/DOWN until

original set temperature appears or wait for

the start tf the next period.

or WEEKEND PROGRAM

•Press UP to change

current day.

•Press NEXT.

•Press UP/DOWN to set time.

WEEKDAY,

SATURDAY or

SUNDAY PROGRAM.

•Press UP/DOWN to adjust

start time.

instructions

TEMPERATURE HOLD

•Press HOLD. Adjust temperature as

desired with UP/DOWN.

•Press NEXT.

•Press UP/DOWN to adjust

temperature.

N O T E

•To clear, press HOLD again.

Y R O W2 B C

•Press NEXT.

Thermostat

Cover

TERMINALS

If you are mounting the base to

a soft material like plasterboard

or if you are using the old

•Repeat as needed or rotate

dial to RUN to stop

Programming.

Rotate the dial to the RUN position to close the door.

mounting holes, the screws

may not hold. Drill a 3/16-in.

(4.8mm) hole at each screw

location, and insert the plastic

anchors provided. Then mount

the base as described below.

•

In cool weather, when the system switch is set to HEAT, the Unit will maintain cooler “set back”

room temperatures to save energy. It will then change to warmer “comfort” settings — all

automatically, at specified times during the day.

In warm weather, when the system switch is set to COOL, the Unit will maintain warmer “set

back” room temperatures to save energy. It will then change to cooler “comfort” settings - all

automatically, at specified times during the day.

A large liquid crystal display shows time, day of the week, and room and set temperatures.

It will remind you when the filter should be changed in your blower and track your system’s

energy usage.

BASE

SCREW ANCHORS

Attaching Wires

4. Hold the base against the wall, with the wires coming through wherever

it is convenient for wiring. Route the wires to below the terminal block.

Position the base for best appearance (to hide any marks from an old

thermostat). Attach the base to the wall with the two screws provided.

•

Temperature swing adjustment lets you fine-tune your system for maximum comfort and

economy.

A 4-minute minimum on/off time in COOL prevents your air conditioning system from being

damaged.

The thermostat can be powered either by a common wire from the 24Vac transformer with

two Energizer^®or DURACELL^®"AA" size alkaline batteries as backup or exclusively by two

Energizer^®or DURACELL^®"AA" size alkaline batteries.

• Your thermostat is a precision instrument. Please handle it with care.

• Turn off electricity to the appliance before installing or servicing thermostat or any part

of the system. Do not turn electricity back on until work is completed.

• Do not short (jumper) across electric terminals at control on furnace or air conditioner

to test the system. This will damage the thermostat and void your warranty.

• All wiring must conform to local codes and ordinances.

• This thermostat is designed for use with 24 volt and millivolt systems. The thermostat

should be limited to a maximum of 1.0 amps; higher amperage may cause damage

to the thermostat. If you are in doubt, call your utility company.

N O T E

Do not allow wires to touch each other or parts on thermostat. Wires must be

trapped between black spacer and brass terminal. Also, be sure to tighten securely

all terminal screws.

When replacing batteries, you have

approximately 1 minute before programs are lost.

1. Remove fresh batteries from their carton.

2. Remove body of thermostat as described at bottom of

first column.

REPLACE BATTERIES WHEN

INDICATOR APPEARS

TERMINAL DESIGNATIONS

NEW THERMOSTAT

OLD TERMINAL

DESIGNATIONS

TYPICAL

3. Remove the battery clip and batteries.

TERMINAL

CONNECTION

4. Install two Energizer^®or DURACELL^®"AA" size

alkaline batteries in the battery clip. Observe the

polarity marking shown in the clip.

DESIGNATIONS

The Unit is protected against normal

static electric discharges. However, in

extremely dry weather you should touch

another metal object before the Unit to

avoid potential loss of programs.

C, X, X1, X2, Z

E, K

Heating Changeover Valve

Common

WARNING: Use Energizer^®or DURACELL^®

Alkaline Batteries Only.

5. Place body back on the wall. Hook the bottom of the body onto the base, swing the body up, and

snap the body onto the base.

Installation is now complete. Be sure to turn the power back on to your heating and /or air conditioning

system. If this is the first time you are installing batteries, the thermostat will display “SUN 12:00 AM”.

Within 90 seconds the thermostat will begin to display the room temperature alternately with the time.

To correct the display, see “Setting the TIME and DAY,” after you set the programs.

Emergency Heat Relay

Fan Relay

G, F

L, A, A1

TAPE OFF

Check Heat Pump Indicator

Cooling Changeover Valve

This thermostat is “armchair programmable”

OPERATION

You can make any program or setting

The Unit alternately displays the current time

changes with the thermostat body off or on

24V System or Heating

Transformer

and the room temperature. It also

R, V

the wall thermostat base.

displays the day of the week and the

currently active program period that is controlling the temperature: MORN, DAY, EVE, or NIGHT.

Stage 2 Heating Relay or

Auxiliary Heat Relay

W2, H2, R4, W3, Y

Y, C1, M, Y1

The set point temperature will appear in the right side of the display. In the winter, set the system switch

to HEAT to control your heating system. In the summer, set the switch to COOL to control your air

conditioner. In spring and fall or when windows are open, you can set the system switch OFF.

Setting the FAN switch to AUTO automatically runs your system’s fan during heating and cooling.

Setting the FAN switch to ON runs your system’s fan continuously even without heating or cooling.

Stage 1 Compressor

Contractor

NOTE: A typical hookup will require either a "B" or "O" wire, but not both.

If you have both a "B" and "O" wire, please call technical service.

TYPICAL HOOKUP

THE BUILT IN PROGRAMS

PERIOD

HEAT

COOL

Push in the RESET key. This sets the

built-in heating and cooling programs.

To review the built-in programs,press

NEXT or PREVIOUS repeatedly; when

you are done, press RETURN.

You can use the built-in programs as

shown, or change them as you wish.

Each day is divided into four periods.

Each period has its own starting time

and temperature.

WEEKDAYS

preprograms

MORN

DAY

EVE

6:00 AM 70° 6:00 AM 78°

8:00 AM 62° 8:00 AM 85°

6:00 PM 70° 6:00 PM 78°

HEAT

CHANGEOVER

VALVE

COOL

CHANGEOVER

VALVE

EMERGENCY

HEAT RELAY

COMPRESSOR

RELAY

NIGHT 10:00 PM 62° 10:00 PM 82°

MORN

DAY

EVE

6:00 AM 70° 6:00 AM 78°

8:00 AM 62° 8:00 AM 85°

6:00 PM 70° 6:00 PM 78°

FAN

RELAY

AUX HEAT

RELAY

COMMON

SAT & SUN

preprograms

NIGHT 10:00 PM 62° 10:00 PM 82°

(HOT)

PERIOD

M M

HEAT

C H A R T

COOL

TEMP.

(COMMON)

POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

DAY

TEMP.

TIME

MORN

DAY

MONDAY

THROUGH

FRIDAY

SETTING THE FAN AND SYSTEM SWITCHES

EVE

NIGHT

MORN

DAY

FAN ON

FAN AUTO

EMER

The fan runs continuously for increased air circulation.

SATURDAY

AND

Normal Setting. Fan is energized with the system.

Auxiliary heat is used for heating. The compressor is deenergized.

The thermostat controls your heating.

EVE

SUNDAY

NIGHT

HEAT

OFF

Both heating and cooling are off.

COOL

The thermostat controls your cooling.

RESET

SET

WEEKDAY

WEEKEND

FAN

AUTO

PROGRAM

EMER

HEAT

OFF

INSTALLING BATTERIES

HOLD

COOL

SET

DAYTIME

RUN

The Unit requires batteries to

retain its programming in

memory. Replace the batteries

when the REPLACE indicator

appears in the display or at

least once a year.

SIMPLIFIED INSTRUCTIONS

TO SET TIME & DAY

TO SET PROGRAMS

• Rotate Dial to SET WEEKDAY • Rotate Dial to SET

TEMPORARY TEMPERATURE OVERRIDE

•Press UP/DOWN to adj st set temperat re

PROGRAMMING THE UNIT

You can change any preset times and/or temperatures to suit your

schedules for the weekday and weekend programs. Each period

(Morning, Day, Evening, and Night) is programmed for HEAT and for

COOL. A blank programming chart is provided for you to record

your temperature settings in that chart.

ADVANCED FEATURES

A thermostat works by turning your heating or cooling system on and off whenever the room

temperature varies a certain number of degrees from the set-point temperature. This variation is the

“swing.”

Your system should cycle on about 3 to 6 times per hour. A smaller swing number increases the

number of cycles, so room temperature is more constant. A larger swing number decreases the

number of cycles, to save energy in most cases.

HEAT and COOL may

TEMPERATURE SWING

have different temperatures.

Select HEAT to program the thermostat for

controlling your heater.

EMER

HEAT

OFF

MO TU WE TH FR

MORN

DAY

OR Select COOL to program the thermostat

for controlling your air conditioner.

EVE

COOL

NIGHT 6 00

Press together

HOLD

SET TEMP SWING

Rotate dial to SET WEEKDAY PROGRAM. To program the WEEKEND, rotate the dial to SET

WEEKEND PROGRAM. With dial on set WEEKDAY Program, you will see this display.

MORN

DAY

Dial must be

in the run

position

To change the temp.

swing between 1-9

(4=approx. 11°)

EVE

DOWN

NIGHT

To change the start time

for MORN.

To program temperature.

To change the start time

for EVE.

DOWN

Press to set.

To program temperature.

TEMPERATURE CALIBRATION

To change the temp.

setting for MORN.

To move to DAY.

To change the temp.

setting for EVE.

To move to Night.

DOWN

Press together

HOLD

Rotate the

MORN

DAY

dial to

EVE

SET DAY/TIME

NIGHT

To adjust the

thermostat

DOWN

To change start time

for DAY.

To program temperature.

To change the start time

for NIght.

To program temperature.

DOWN

PROGRAM LOCK

To prevent tampering with set programs. The sequence of keys to

lock and unlock the program:

MO TU WE TH FR

MORN

DAY

EVE

NIGHT 7 30

To change the temp.

setting for DAY.

To change the temp.

setting for NIght.

DOWN

HOLD

Rotate dial to RUN position to start the

To move to eve.

programs or SET WEEKEND PROGRAM to

continue programming.

You must press “RESET” after enabling the features below. This will require you to

reprogram your thermostat. Please copy your programs into the blank chart provided

to assist reprogramming. Please reference the figure under “INSTALLING BATTERIES”

which shows the JUMPER LOCATIONS

SETTING THE TIME OF DAY

MO TU WE TH FR

MORN

DAY

EVE

The unit is protected against normal static electric discharges.

However, in extremely dry weather you should touch another metal

object before the unit to avoid potential loss of programs.

NIGHT

CHANGING FROM °F TO °C AND A 12HR CLOCK TO A 24HR CLOCK

WARNING: Making these changes will require you to reset the thermostat. Copy any of your

customized programs onto the chart . This will be your reference to reenter the programs

afterwards.

Open the drop down door on the front of the thermostat. Rotate the dial to the SET DAY/TIME

position. You should see the display pictured above with a day of the week flashing. When you are

finished setting the day and time, rotate the dial to RUN to return to normal operation or to another

position to continue programming.

• To change to Celsius - remove jumper -J2.

• To change to a 24HR clock - remove jumper- J1.

• Press the reset key on the front of the thermostat for changes to take effect.

• Reprogram as necessary.

To change

To set current time. The

time (e.g."12:00 AM")

will be flashing.

To change the

current time.

current day.

DOWN

TEMPERATURE OVERRIDE AND TEMPERATURE HOLD

These features let you change the current Set Temperature without changing the programs stored in

your thermostat’s memory.

Press UP/DOWN to change the current temperature

setting. The OVERRIDE indicator appears on display.

The Override feature will be automatically canceled at

the start of the next program period.

To cancel OVERRIDE prior to next program period press

UP/DOWN until original set temperature appears.

OVERRIDE indicator will disappear from display.

TEMPORARY TEMPERATURE

OVERRIDE

OPEN CLOSE

24HR 12HR

JP1

JP2

MO TU WE TH FR

MORN

DAY

EVE

JP1

JP2

NIGHT 7 30

OVERRIDE

DOWN

VACATION TEMPERATURE

HOLD

To protect your home from freezing in the event you have inadvertently left the unit switched OFF,

or its batteries have been drained, your PSPH521 will energize the thermostat’s heating

terminals as necessary to control the temperature at approximately 40°F. Please call our technical

assistance department if your application requires that this feature be disabled.

Press HOLD. Adjust temperature as desired with

UP/DOWN.

Temperature setting will not change even after next

program period begins.

MO TU WE TH FR

MORN

DAY

HOLD

EVE

NIGHT 7 30

HOLD

TECHNICAL SERVICE

To clear, press HOLD again.

If you have any problems installing or using this thermostat, please reread the

instructions carefully. Technical Service is available through our Technical Service Number.

If you require assistance, please call our offices between 8:00 a.m. and 4:30 p.m. Eastern

Standard Time, Monday through Friday. The number is (856) 234-8803 or visit our online

technical support at www.luxproproducts.com.

WARRANTY

Limited Warranty: If this unit fails because of defects in materials or workmanship within

one year of date of original purchase, LUX will, at its option, repair or replace it. This

warranty does not cover damage by accident, misuse, or failure to follow installation

instructions. Implied warranties are limited in duration to one year from date of original

purchase. Some states do not allow limitations on how long an implied warranty lasts, so

the above limitation may not apply to you. Please return malfunctioning or defective units

to the participating retailer from which purchase was made, along with proof of purchase.

Please refer to Technical Service Section before returning thermostat.

Purchaser assumes all risks and liability for incidental and consequential damage

resulting from installation and use of this unit. Some states do not allow the exclusion of

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

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

from state to state. Applicable in the U.S.A. only.

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