White Rodgers Thermostat 1A11 2 User Manual

1A11-2  
WHITE-RODGERS  
Fan Coil Heating-Cooling Thermostat  
INSTALLATION INSTRUCTIONS  
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.  
DESCRIPTION  
The 1A11-2 thermostat controls line voltage valves and/  
or blower motors on fan coil units in manual changeover,  
heating/cooling systems. It features a system switch for  
manual selection of heat -off-cool, a three speed manual  
fan control switch, an adjustable temperature dial with a  
36 to 90°F range, and an indicating thermometer, all  
combined in one deluxe-styled control.  
50  
60  
FAN  
70  
80  
90  
HIGH  
MED  
LOW  
WHITE-RODGERS  
60  
Color-coded leads are provided for connection to field  
wiring. The thermostat can be wired to perform the  
following functions:  
70  
50  
40  
HEAT  
80  
90  
OFF  
COOL  
SYSTEM  
- Thermostat cycles both fan and valve.  
- Thermostat cycles fan only.  
- Thermostat cycles valve only.  
- System switch “OFF” breaks all circuits.  
PRECAUTIONS  
If in doubt about whether your wiring is millivolt, line, or  
low voltage, have it inspected by a qualified heating and  
airconditioningcontractor, electrician, orsomeonefamil-  
iar with basic electricity and wiring.  
CAUTION  
!
To prevent electrical shock and/or equipment  
damage, disconnectelectricpowertosystem, at  
main fuse or circuit breaker box, until installa-  
tion is complete.  
Do not exceed the specification ratings.  
All wiring must conform to local and national electrical  
codes and ordinances.  
WARNING  
Do not use on circuits exceeding specified volt-  
age. Higher voltage will damage control - could  
cause shock or fire hazard.  
!
This control is a precision instrument, and should be  
handled carefully. Rough handling or distorting compo-  
nents could cause the control to malfunction.  
WHITE-RODGERS DIVISION  
EMERSON ELECTRIC CO.  
9797 REAVIS ROAD  
ST. LOUIS, MISSOURI 63123-5398  
PART NO. 37-4113D  
Replaces 37-4113C  
Printed in U.S.A.  
9609  
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INSTALLATION (cont’d)  
WIRING  
NOTE  
This typical wiring diagram shows only the terminal  
identification and wiring hookup. Always refer to wiring  
instructions, provided by equipment manufacturer, for  
system hookup operation.  
CAUTION  
!
To prevent electrical shock and/or equipment  
damage, disconnect electric power to system at  
mainfuseorcircuitbreakerboxuntilinstallation  
is complete.  
All wiring should be done according to local and national  
electrical codes and ordinances.  
FAN  
HIGH  
MED LOW  
L1 GND  
VALVE  
- Thermostat cycles both fan and valve  
- Thermostat cycles fan only (if valve is not used,  
tape orange lead)  
HIGH  
2
1
- System “OFF” breaks both valve and fan circuits  
HEAT  
FAN  
SWITCH  
COOL  
MED  
LOW  
- Thermostat cycles valve only with continuous  
fan (interchange valve and L1 leads)  
RED  
HEAT  
SYSTEM  
SWITCH  
3
OFF  
COOL  
BLUE  
1A11-2 5-wire for single valve,  
manual heat/cool changeover  
3
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