LUX PSPH521 Installation And Operating Instructions Manual

INSTALLATION AND OPERATING INSTRUCTIONS

OFF

EGYROW2BC

TERMINALS

SCREW ANCHORS

BASE

PSPH521 SERIES

PROGRAMMABLE

UP

O
M

Y
A
D

T
A
E

H
M
P

DOWN

Installs Easily

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.

IMPORTANT!

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

READ

INSTALLATION

INSTRUCTIONS

FIRST

FEATURES

•

The Unit can be
used with most
two stage heat
and one stage
cool heat pump
systems. It cannot be

used with 120 volt
heating systems. Ask your
dealer for other LUX
thermostats to control those
systems.

• The Unit is programmable.

There are four programming
periods per day. Each period
can be programmed
separately.

• 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.

• 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.

• 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.

CAUTION

• 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.

your investment, please read these instructions and acquaint yourself with
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.

LUX Speed Dial

HEAT PUMP THERMOSTAT

UP

O

HEAT

OFF

COOL

1500

Patents Pending

original set temperature appears or wait for

TO SET TIME & DAY

•Rotate Dial to SET WEEKDAY
or WEEKEND PROGRAM

•Press UP to change
current day.

•Press NEXT.

•Press UP/DOWN to set time.

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

M

Y
A
D

T
A
E
H

M
P

DOWN

SET

SET

SUNDAY

SATURDAY

RESET

FAN

PROGRAM

PROGRAM

HEAT

AUTO

SET

OFF

FILTER

WEEKDAY

HOLD

ON

COOL

PROGRAM

SET

RUN

NEXT

DAY/TIME

Patents Pending

SIMPLIFIED INSTRUCTIONS

•Press UP/DOWN to set time.

TEMPORARY TEMPERATURE OVERRIDE

TO SET TIME & DAY

•Press UP/DOWN to adjust set temperature.

•Rotate Dial to SET

TO SET PROGRAMS

•To clear OVERRIDE press UP/DOWN until

DAY/TIME.

•Rotate Dial to SET

original set temperature appears or wait for

•Press UP to change

Choose Heat or CoolSet Day & Time

Liquid Crystal
Display

UP

DOWN

RESET

SET

WEEKEND
PROGRAM

HOLD

RUN

NEXT

SIMPLIFIED INSTRUCTIONS

TO SET PROGRAMS

•Rotate Dial to SET
WEEKDAY,
SATURDAY or
SUNDAY PROGRAM.

•Press UP/DOWN to adjust
start time.

•Press NEXT.

•Press UP/DOWN to adjust

temperature.

•Press NEXT.

•Repeat as needed or rotate

dial to RUN to stop
Programming.

Easy as

1500

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.

TEMPERATURE HOLD

•Press HOLD. Adjust temperature as
desired with UP/DOWN.

•To clear, press HOLD again.

1–2–3

FAN

EMER

AUTO

HEAT
OFF

ON

COOL

UP

O
M

Y
A
D

T
A
E
H

M
P

DOWN

SET

SET

SUNDAY

SATURDAY

RESET

FAN

PROGRAM

PROGRAM

AUTO

SET

FILTER

WEEKDAY

HOLD

ON

PROGRAM

SET

RUN

NEXT

DAY/TIME

SIMPLIFIED INSTRUCTIONS

•Press UP/DOWN to set time.

TEMPORARY TEMPERATURE OVERRIDE

TO SET TIME & DAY

•Press UP/DOWN to adjust set temperature.

•Rotate Dial to SET

•To clear OVERRIDE press UP/DOWN until

TO SET PROGRAMS

DAY/TIME.

•Rotate Dial to SET

•Press UP to change

The Active Program Period

®

MORN

DAY

EVE

NIGHT

SET

WEEKDAY
PROGRAM

SET

DAYTIME

The Set
Temperature

Thermostat
Body

System
Switch

Fan
Switch

Easy to
follow
instructions

Thermostat
Cover

INSTALLATION

Please read all instructions carefully
before beginning installation.

TOOLS REQUIRED

#1 Phillips screwdriver (small)
Drill with 3/16-in. (4.8mm) bit

THERMOSTAT LOCATION

On replacement installations, mount the
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.

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.

CAUTION

To avoid electrical shock and
to prevent damage to the
furnace, air conditioner, and
thermostat, disconnect the power
supply before beginning work. This
can be done at the fuse box, at the
circuit breaker, or at the appliance.

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

7. This thermostat does not require leveling.

REMOVING THE OLD THERMOSTAT

Switch electricity to the furnace and air conditioner OFF; then
proceed with the following steps.

1. Remove cover from old thermostat. Most are snap-on types
and simply pull off. Some have locking screws on the side.
These must be loosened.

2. Note the letters printed near the terminals. Attach labels
(enclosed) to each wire for identification. Remove and label
wires one at a time. Make sure the wires do not fall back inside
the wall.

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

CAUTION

Read instructions carefully
before removing any
wiring from existing
thermostat. Wires must be
labeled before they are
removed. When removing
wires from their terminals,
ignore the color of the
wires since these may not
comply with the standard.

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.

CAUTION

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

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

NOTE

If you are mounting the base to
a soft material like plasterboard
or if you are using the old
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.

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.

1© COPYRIGHT 2004 LUX PRODUCTS CORPORATION. ALL RIGHTS RESERVED

CAUTION

SET

WEEKDAY
PROGRAM

HOLD

RESET

NEXT

SET

DAYTIME

SET

WEEKEND
PROGRAM

RUN

EMER
HEAT
OFF
COOL

FAN

AUTO

ON

SIMPLIFIED INSTRUCTIONS

TO SET PROGRAMS

TEMPORARY TEMPERATURE OVERRIDE

TO SET TIME & DAY

GE YRO W2 B C

COMPRESSOR

RELAY

FAN

RELAY

EMERGENCY

HEAT RELAY

HEAT

CHANGEOVER

VALV E

COOL

CHANGEOVER

VALV E

AUX HEAT

RELAY

COMMON

1

1

L1
(HOT)

L2
(COMMON)

POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.

OLD TERMINAL
DESIGNATIONS

TYPICAL

CONNECTION

NEW THERMOSTAT

TERMINAL

DESIGNATIONS

B

C, X, X1, X2, Z

E, K

G, F

L, A, A1

0

R, V

W2, H2, R4, W3, Y

Y, C1, M, Y1

B

C

E

G

TAPE OFF

0

R

W2

Y

Heating Changeover Valve

Common

Emergency Heat Relay

Fan Relay

Check Heat Pump Indicator

Cooling Changeover Valve

24V System or Heating

Transformer

Stage 2 Heating Relay or

Auxiliary Heat Relay

Stage 1 Compressor

Contractor

FAN ON

FAN AUTO

EMER

HEAT

OFF

COOL

The fan runs continuously for increased air circulation.

Normal Setting. Fan is energized with the system.

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

The thermostat controls your heating.

Both heating and cooling are off.

The thermostat controls your cooling.

DAY

MONDAY

THROUGH

FRIDAY

PERIOD HEAT

TEMP.

MORN

DAY

EVE

NIGHT

SATURDAY

AND

SUNDAY

MORN

DAY

EVE

NIGHT

TEMP.TIME TIME

COOL

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.

TERMINAL DESIGNATIONS

NOTE

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.

3. Remove the battery clip and batteries.

4. Install two Energizer®or DURACELL®"AA" size
alkaline batteries in the battery clip. Observe the
polarity marking shown in the clip.

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.

REPLACE BATTERIES WHEN

INDICATOR APPEARS

CAUTION

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.

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

SETTING THE FAN AND SYSTEM SWITCHES

OPERATION

The Unit alternately displays the current time
and the room temperature. It also
displays the day of the week and the
currently active program period that is controlling the temperature: MORN, DAY, EVE, or NIGHT.

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.

THE BUILT IN PROGRAMS

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.

This thermostat is “armchair programmable”
You can make any program or setting
changes with the thermostat body off or on
the wall thermostat base.

PERIOD HEAT COOL

WEEKDAYS

preprograms DAY 8:00 AM 62° 8:00 AM 85°

SAT & SUN DAY 8:00 AM 62° 8:00 AM 85°

preprograms EVE 6:00 PM 70° 6:00 PM 78°

MORN 6:00 AM 70° 6:00 AM 78°

EVE 6:00 PM 70° 6:00 PM 78°

NIGHT 10:00 PM 62° 10:00 PM 82°

MORN 6:00 AM 70° 6:00 AM 78°

NIGHT 10:00 PM 62° 10:00 PM 82°

PROGRAMMING CHART

INSTALLING BATTERIES

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.

2© COPYRIGHT 2004 LUX PRODUCTS CORPORATION. ALL RIGHTS RESERVED

PROGRAMMING THE UNIT

MORN

DAY

EVE

NIGHT

AM

MO TU WE TH FR

MORN

OVERRIDE

DAY

EVE

NIGHT

70

730

MO TU WE TH FR

MORN

HOLD

DAY

EVE

NIGHT

65

730

MO TU WE TH FR

EMER
HEAT
OFF
COOL

MORN

DAY

EVE

NIGHT

AM

MO TU WE TH FR

600

70

UP

DOWN

NEXT

UP

DOWN

NEXT

UP

DOWN

NEXT

UP

DOWN

NEXT

UP

DOWN

NEXT

UP

DOWN

NEXT

UP

DOWN

NEXT

UP

DOWN

UP

DOWN

NEXT

UP

DOWN

UP

HOLD

MORN

DAY

EVE

NIGHT

0

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.

Select HEAT to program the thermostat for
controlling your heater.

NO

HEAT and COOL may

have different temperatures.

TE

OR Select COOL to program the thermostat
for controlling your air conditioner.

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.

To change the start time
for MORN.

To program temperature.

To change the temp.
setting for MORN.

To move to DAY.

To change start time
for DAY.

To program temperature.

To change the temp.
setting for DAY.

To move to eve.

Rotate dial to RUN position to start the

programs or SET WEEKEND PROGRAM to

To change the start time
for EVE.

To program temperature.

To change the temp.
setting for EVE.

To move to Night.

To change the start time
for NIght.

To program temperature.

To change the temp.
setting for NIght.

continue programming.

SETTING THE TIME OF DAY

CAUTION

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.

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
current day.

To set current time. The
time (e.g."12:00 AM")
will be flashing.

To change the
current time.

TEMPERATURE OVERRIDE AND TEMPERATURE HOLD

These features let you change the current Set Temperature without changing the programs stored in
your thermostat’s memory.

TEMPORARY TEMPERATURE
OVERRIDE

VACATION TEMPERATURE
HOLD

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.

Press HOLD. Adjust temperature as desired with
UP/DOWN.

Temperature setting will not change even after next
program period begins.

To clear, press HOLD again.

ADVANCED FEATURES

TEMPERATURE SWING

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.

Press together

NEXT

JP2

HOLD

HOLD

UP

NEXT

HOLD

UP

JP1 JP2

DOWN

NEXT

DOWN

MORN

DAY

EVE

NIGHT

To change the temp.
swing between 1-9
(4=approx. ±1°F)

Press to set.

Press together

To adjust the
thermostat

MO TU WE TH FR

70

730

MORN

DAY

EVE

NIGHT

SET TEMP SWING

4

Dial must be
in the run
position

TEMPERATURE CALIBRATION

Rotate the
dial to
SET DAY/TIME

PROGRAM LOCK

To prevent tampering with set programs. The sequence of keys to
lock and unlock the program:

NEXT

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

NEXT NEXT

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

NOTE

which shows the JUMPER LOCATIONS

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.

• 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.

C B W2 O R Y G E

CLOSE

OPEN

12HRFJP1

24HR

C

IMPORTANT

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.

TECHNICAL SERVICE

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 [phone] 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.

3© COPYRIGHT 2004 LUX PRODUCTS CORPORATION. ALL RIGHTS RESERVED