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WHITE-RODGERS
Operator: Save these instructions for future use!
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY
BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE
PERSONAL INJURY AND/OR PROPERTY DAMAGE.
This low voltage thermostat is designed to provide conve-
nient control of the heating/cooling system. To provide
greater room comfort, the sensitive spiral bimetal is com-
bined with an adjustable heating anticipator and a fixed
cooling anticipator to provide maximum comfort.
If in doubt about whether your wiring is millivolt, line, or low
voltage, have it inspected by a qualified heating and air
conditioning contractor, electrician, or someone familiar
with basic electricity and wiring.
Do not exceed the specification ratings.
All wiring must conform to local and national electrical
codes and ordinances.
CONTENTS
Description ......................................................... 1
Precautions ........................................................ 1
Specifications ..................................................... 2
Installation .......................................................... 2
Electric Heat Furnaces (Single Trans-
former Systems Only)
Operation & Maintenance .................................. 5
WHITE-RODGERS DIVISION
EMERSON ELECTRIC CO.
9797 REAVIS ROAD
ST. LOUIS, MISSOURI 63123-5398
Low Voltage Heating/Cooling Thermostat
INSTALLATION INSTRUCTIONS
This control is a precision instrument, and should be
handled carefully. Rough handling or distorting compo-
nents could cause the control to malfunction.
To prevent electrical shock and/or equipment
damage, disconnect electric power to system at
main fuse or circuit breaker box until installation
is complete.
Do not short out terminals on gas valve or pri-
mary control to test. Short or incorrect wiring will
burn out heat anticipator and could cause per-
sonal injury and/or property damage.
Do not use on circuits exceeding 30 volts. Higher
voltage will damage control and could cause
shock or fire hazard.
Thermostat installation and all components of
the system shall conform to Class II circuits per
the NEC code.
Printed in U.S.A.
1F56W-911
DESCRIPTION
PRECAUTIONS
CAUTION
!
WARNING
!
PART NO. 37-6199B
Replaces 37-6199A
0105
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Summary of Contents for White Rodgers 1F56W-911
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Page 1: Table Of Contents
Calibrating Thermostat WHITE-RODGERS DIVISION EMERSON ELECTRIC CO. 9797 REAVIS ROAD ST. LOUIS, MISSOURI 63123-5398 1F56W-911 Low Voltage Heating/Cooling Thermostat INSTALLATION INSTRUCTIONS This control is a precision instrument, and should be handled carefully. Rough handling or distorting compo- nents could cause the control to malfunction. -
Page 2: Specifications
2. If a new location is chosen or if this is a new installa- tion, thermostat wiring must first be run to the location selected. APPLICATIONS The 1F56W-911 is designed for use with • Standard heating and cooling systems • Electric heating and cooling systems • Single stage heat pump systems •... -
Page 3: Attach Subbase To Wall
ATTACH SUBBASE TO WALL CAUTION To prevent electrical shock and/or equipment damage, disconnect electric power to system at main fuse or circuit breaker box until installation is complete. 1. Disconnect electrical power at main fuse or circuit breaker. 2. Pull wires through opening near center of subbase and connect wires beneath terminal screws (see figs. - Page 4 CAUTION Take care when securing and routing wires so they do not short to adjacent terminals or rear of thermostat. Personal injury and/or property dam- age may occur. Switch AUTO Moveable Yellow Jumper Figure 3. Typical wiring diagram (see figs. 4, 5, and 6 for typical system/thermostat wiring) KEEP THIS AREA CLEAR OF WIRES!
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Page 5: Operation & Maintenance
KEEP THIS AREA CLEAR OF WIRES! Factory-installed Red Jumper Wire Factory-installed Yellow Jumper Wire TRANSFORMER 120 VAC Neutral Figure 6. Typical wiring for single transformer, single stage heat pump system This thermostat is easy to operate. Fig. 8 shows how the heating/cooling system and fan operate when the switches are in various positions. -
Page 6: Adjusting Heat Anticipator
Emerson Electric Co. 9797 Reavis Road St. Louis, MO 63123-5398 Attn: Technical Service Department 1F56W-911 3. Remove thermostat cover. Slip nut beneath bimetal. While holding temperature ad- justment lever stationary, turn hex nut clockwise until mercury shifts to the right end of the tube (see fig. 10).