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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
Adjusting Heat Anticipator
Calibrating Thermostat
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.
White-Rodgers is a division
of Emerson Electric Co.
www.white-rodgers.com
1F56N-911
DESCRIPTION
SYSTEM
FAN
ON
COOL
OFF
HEAT
AUTO
C
C
90
32
32
90
80
80
70
21
21
70
60
60
50
10
10
50
PRECAUTIONS
CAUTION
!
WARNING
!
PART NO. 37-6923A
0807
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Summary of Contents for White Rodgers 1F56N-911
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Page 1: Table Of Contents
Special Application Terminals Attach Thermostat to Subbase Operation & Maintenance ... 5 Adjusting Heat Anticipator Calibrating Thermostat 1F56N-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
SPECIFICATIONS ELECTRICAL DATA Switch Rating: 24 VAC (30 VAC max.) Heating - 0.15 to 1.2 Amps Cooling - 0 to 1.5 Amps Switch Action: SPST - Snap Action Anticipator Rating: Heating - Adjustable from 0.15 to 1.2 Amps Cooling - Fixed 24 VAC THERMAL DATA Temperature Range: 50°F to 90°F (10°C to 32°C) Differential: 1°F... -
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
ADJUSTING HEAT ANTICIPATOR CAUTION The adjustable heat anticipator WILL BURN OUT if 25 VAC is applied directly to the thermostat by shorting out the primary control during testing. This may cause personal injury and/or property damage. This thermostat is equipped with an adjustable heat anticipator and was preset at the factory to provide satisfactory operation of the heating system under normal conditions. - Page 8 HOMEOWNER HELP LINE: 1-800-284-2925 The Emerson logo is a trademark and a service mark of Emerson Electric Co.
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