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© 2007 LUX PRODUCTS CORPORATION. ALL RIGHTS RESERVED

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SPECIFICATIONS

ELECTRICAL RATING

......24 Vac (30 Vac Maximum)

SWITCH ACTION

......................Open contact switch

ANTICIPATOR RATING

(HEATING)....................................0.15A to 1.2A
(COOLING)...................................Fixed 24 VAC

TEMPERATURE RANGE

.......................50°F to 90°F

1). THERMOSTAT LOCATION

For accurate temperature control and comfort, correct
location is very important. On new installations, the
guidelines listed below should be followed as closely as
possible. When replacing an old thermostat, install the
new one in the same location unless these conditions
suggest otherwise.

1. Locate the thermostat on an inside wall about five

feet above the floor, where it is easy to install and
adjust. It should be in a room that is used often, such
as a family room.

2. Do not install it where there are unusual heating

conditions, such as direct sunlight, close to a lamp,
radio, television, radiator, register, near a fireplace, or
other heat producing appliance. Also, check for hot
water pipes within the wall, or a stove on the other
side of the wall.

LUXPRO

INSTALLATION AND OPERATING

INSTRUCTIONS

PSM40SA

HEATING & COOLING THERMOSTAT

52047

LUX PRODUCTS CORPORATION

Mt. Laurel, New Jersey 08054, USA
www.luxproproducts.com

ATTENTION : not for use with

compressors without

time delays.

3. Do not locate in unusual cooling conditions, such as

on an outside wall, or one separating an unheated
room, or in drafts from stairwells, doors, or windows.

4. Do not locate in a damp or humid area. This can

shorten thermostat life due to corrosion.

5. Do not locate where air circulation is poor, such as in

a corner, alcove, or behind an open door.

6. Do not install until all construction work and painting

have been completed.

2) TOOLS REQUIRED

Wirestripper or knife, drill with 

3

⁄16" bit, screwdriver,

level and a pencil.

3) REMOVING OLD THERMOSTAT

Please read all instructions carefully. As you complete
each step, check the adjoining square  

■■

.

■■

Disconnect electricity and turn off gas to the heater.

■■

Remove cover from old thermostat.

■■

Disconnect wires from thermostat, making sure they
do not fall back inside the wall. Make note of wires
and to which terminals they are attached as you
disconnect them. For example: “Yellow wire to
terminal Y, Red wire to terminal RH,” etc.

■■

Strip insulation 

3

⁄8" from wire ends and clean off any

corrosion.

■■

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

■■

Fill wall opening with non-combustible insulation to
prevent drafts from affecting thermostat.

4) INSTALLING NEW THERMOSTAT

■■

Place new decorative wall plate (if supplied), Figure 4,
over wall opening. Decorative wall plate can
optionally be left off.

■■

Remove Front Cover of new thermostat by inserting a
finger in the side of the thermostat and gently prying
away each corner.  Remove Base, Figure 2, from Sub-
Base, Figure 3, by loosening three captive screws.

■■

Place Sub-Base, Figure 3, on wallplate over wall
opening. Mark wall with pencil at mounting holes as
shown in Figure 2. Now lay wallplate and Sub-Base to
the side.

■■

Drill two holes with 3/16” bit, 1” deep.

■■

Insert plastic screw anchors into drilled holes, flush
with wall surface.

■■

Bring wires through large hole in decorative wall plate
and through Hole For Wires in Sub-Base.

■■

Referring to your notes and the following diagrams,
attach wires to terminal screws shown in Figure 2.
Make sure bare metal wires do not touch each other.
Push all excess wire back into wall.

INSTALLATION & OPERATION

LIT-12013411

Summary of Contents for LUXPRO PSM40SA

Page 1: ... Do not install until all construction work and painting have been completed 2 TOOLS REQUIRED Wirestripper or knife drill with 3 16 bit screwdriver level and a pencil 3 REMOVING OLD THERMOSTAT Please read all instructions carefully As you complete each step check the adjoining square Disconnect electricity and turn off gas to the heater Remove cover from old thermostat Disconnect wires from thermo...

Page 2: ...R VALVE POWERED IN COOL COOL TRANSFORMER If both Y and C wire are present tape off C wire Heating Cooling Systems 4 or 5 Wire with One Transformer G Y W RH B O RC C Y G F W V R R C B O Optional Optional Tape Off TC FAN RELAY COOLING COMPRESSOR HEATING CONTROL HEATING TRANSFORMER DAMPER OR CHANGEOVER VALVE POWERED IN HEAT DAMPER OR CHANGEOVER VALVE POWERED IN COOL COOL TRANSFORMER If both Y and C w...

Page 3: ...N 24 VAC HEAT TRANSFORMER G Y W RH RC O B TYPICAL HOOKUP FOR 3 WIRE HEAT SYSTEM IF THIRD WIRE IS FAN WIRE Figure 9 GAS VALVE 110 FAN 24 VAC TRANSFORMER G Y W RH RC O B TYPICAL HOOKUP FOR 2 WIRE 24V HEATING SYSTEM AND MILLIVOLT SYSTEM Figure 8 GAS VALVE 110 24 VAC TRANSFORMER OR THERMOPILE G Y W RH RC O B These diagrams below are provided for new installations or unreferenced wires N O T E If you h...

Page 4: ...ur convenience Place Base Figure 3 over Sub Base and attach by tightening three captive screws Fasten loosely to wall using two mounting screws Place a level against the bottom of the Base adjust until it is level and then tighten mounting screws to secure Find anticipator setting on old thermostat Setting on new thermostat should be the same Do this by carefully sliding the long pointer Figure 2 ...

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