White Rodgers 500 User's Manual

White Rodgers Air Conditioners User's Manual - 500.
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Installation Instructions for

Heating & Air Conditioning

Model 500

Non- Programmable

Heat Pump Thermostat

CONTENTS

Preparations .................................................. 1

Thermostat Details ........................................ 1

Removing Old Thermostat ......................... 1-2

Mounting and Wiring .................................. 2-3

Check Thermostat Operation ..................... 4-5

Specifications ................................................ 5

Troubleshooting ......................................... 5-6

PREPARATIONS

THERMOSTAT DETAILS

REMOVING OLD THERMOSTAT

Before removing wires from old thermostat’s switching subbase,
label each wire with the terminal designation it was removed from.

1. Remove Old Thermostat:  A standard heat/cool thermostat

consists of three basic parts:

a. The cover, which may be either a snap-on or hinge type.

b. The base, which is removed by loosening all captive screws.

c. The switching subbase, which is removed by unscrewing

the mounting screws that hold it on the wall or adaptor plate.

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

complete. Ensure that electrical power is disconnected.

3. 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.

4. Identify each wire attached to the old thermostat using the

labels enclosed with the new thermostat.

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

NOT LET WIRES FALL BACK INTO THE WALL.

6. Install new thermostat using the following procedures.

To prevent electrical shock and/or equipment damage,
disconnect electrical power to the system at the main
fuse or circuit breaker until installation is complete.

CAUTION

!

Printed in U.S.A.

PART NO. 37-6398C

Replaces 37-6398B

0341

WHITE-RODGERS
EMERSON ELECTRIC CO.
9797 REAVIS ROAD
ST. LOUIS, MISSOURI 63123-5398
www.white-rodgers.com

Failure to follow and read all instructions carefully
before installing or operating this control could cause
personal injury and/or property damage.

Assemble tools required as shown below.

YOUR THERMOSTAT  REPLACES

1

2

3

WIRE CUTTER/STRIPPER

HAND OR POWER 
DRILL WITH 3/16 INCH 
DRILL BIT, IF NEEDED

FLAT BLADE SCREWDRIVER

SPIRIT LEVEL OR PLUMB BOB AND LINE OPTIONAL— 

THERMOSTAT DOES NOT NEED TO BE LEVEL TO WORK PROPERLY

Figure 1. Thermostat base

W905

Clip for

Slow Cycle

W904

Clip for

Celsius

Mounting

hole

W906 for Emergency

Heat Second Stage

Fan Control

O/B 

Terminal

Switches 

Selection

Mounting

hole

Description

Heat Pump (No Aux or Emergency Heat)

Yes

Heat Pump (with Aux or Emergency Heat)

Yes

Standard Heat & Cooling Systems

No

Standard Heat Only Systems

No

Millivolt Heat Only Systems – Floor or Wall Furnaces

No

Standard Central Air Conditioning

No

Gas or Oil Heat

No

Electric Furnace

No

Hydronic (Hot Water) Zone Heat – 2 Wires

No

Hydronic (Hot Water) Zone Heat – 3 Wires

No

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