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Installation Instructions for

Heating & Air Conditioning

1F72

5/2 Day 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

Programming your Thermostat .................. 6-7

Specifications ................................................ 7

Troubleshooting .........................................7-8

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. 37-6498A

0342

WHITE-RODGERS

EMERSON ELECTRIC CO

ST. LOUIS, MISSOURI

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

WIRE CUTTER/STRIPPER

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

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

W903

Clip to

Disable

EMR

Feature

Mounting

hole

W906 for Emergency

Heat Second Stage

Fan Control

O/B

Terminal

Switches

Selection

Mounting

hole

1 2 3 4 5 6 7 8

Resumo do Conteúdo

Página 1 - YOUR THERMOSTAT REPLACES

Installation Instructions forHeating & Air Conditioning1F725/2 Day ProgrammableHeat Pump ThermostatCONTENTSPreparations ...

Página 2 - MOUNTING AND WIRING

MOUNTING AND WIRINGTake care when securing and routing wires so they donot short to adjacent terminals or rear of thermostat.Personal injury and/or pr

Página 3 - CONTINUED FROM SECOND PAGE

www.white-rodgers.comMOUNTING AND WIRINGCONTINUED FROM SECOND PAGE4LRE24 VAC120 VACHotSYSTEMMONITORSWITCHNeutralTHERMOSTATSYSTEMG W2Figure 2. Typical

Página 4 - CHECK THERMOSTAT OPERATION

CHECK THERMOSTAT OPERATIONwww.white-rodgers.comNOTETo prevent static discharge problems, touch side of ther-mostat to release static build-up before t

Página 5 - Configuration Menu

www.white-rodgers.com12EMER is displayed flashing when the system switch is inEMER position.13Alternately displays current time and temperature.14The

Página 6 - Entering Your Program

1ST2ND3RD4TH1ST2ND3RD4THSAMPLEHeating/Cooling Schedule Plan (Factory Program)6:00 AM8:00 AM5:00 PM10:00 PM6:00 AM8:00 AM5:00 PM10:00 PM6:00 AM8:00 AM5

Página 7 - Check Your Programming

ELECTRICAL DATAElectrical Rating:20 to 30 VAC 50/60 Hz.0.05 to 1.0 Amps (Load per terminal)1.5 Amps Maximum Total Load (All terminals combined)SPECIFI

Página 8 - TROUBLESHOOTING

Symptom Possible Cause Corrective ActionNo Heat (continued) 5. Heating system requires service or Diagnostic: Set System Switch to HEAT and raisetherm

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White-rodgers 1F72 Manual do Utilizador

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