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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