White Rodgers 1A11 2 Thermostat User Manual

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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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SPECIFICATIONS  
Switch Action: SPDT  
(Heating - open on rise)  
(Cooling - close on rise)  
Contact Structure: Snap action  
Electrical Rating:  
VOLTAGE (AC)  
Full Load Amps.  
Locked Rotor Amps.  
Pilot Duty  
120V  
5.5  
240V  
2.75  
277V  
2.3  
Temperature Range: 36°F to 90°F (2°C to 32°C)  
33.0  
16.5  
13.8  
CAUTION  
!
125VA  
When the thermostat is set below 40°F (5°C),  
damage to the building and/or contents may  
result due to freezing. This is possible due to  
factory calibration tolerances, thermostat loca-  
tion and operating characteristics of the heating  
equipment.  
Mounting: Standard 2 x 4 inch outlet box or 2-ganged  
outlet boxes. Mounting screws are provided with the  
thermostat. With a standard adapter plate (not provided),  
this thermostat may be mounted on a 4 inch square  
junction box  
System Switch: Heat - Off - Cool  
Fan Switch : Low - Medium - High  
INSTALLATION  
Install the thermostat as follows:  
SELECT THERMOSTAT LOCATION  
1. Before mounting, connect system wiring to proper  
color-codedleadsatrearofthermostat.Followequip-  
ment manufacturer's instructions or refer to wiring  
diagram for typical system hookups.  
Proper location insures that the thermostat will provide a  
comfortable home temperature. Observe the following  
general rules when selecting a location:  
1. Locate thermostat about 5 ft. above the floor.  
2. Remove thermostat cover by grasping top and bottom  
of cover and pull straight out. Dress wiring into junction  
box and secure thermostat to outlet box with mounting  
screws.  
2. Install thermostat on a partitioning wall, not on an  
outside wall.  
3. Never expose thermostat to direct light from lamps,  
sun, fireplaces or any temperature radiating equip-  
ment.  
NOTE  
4. Avoid locations close to windows, adjoining outside  
walls, or doors that lead outside.  
DO NOT PUSH OR DAMAGE THE KNOB SENSING  
ELEMENT DURING INSTALLATION.  
5. Avoid locations close to air registers or in the direct  
path of air from them.  
3. Install thermostat cover, turn knob to desired setting,  
and set selector switches for the appropriate system  
function and fan speed.  
6. Make sure there are no pipes or duct work in that part  
of the wall chosen for the thermostat location.  
7. Never locate thermostat in a room that is warmer or  
cooler than the rest of the home, such as the kitchen.  
8. Avoid locations with poor air circulation, such as  
behind doors or in alcoves.  
ADAPTER PLATE  
(NOT PROVIDED)  
9. The living or dining room is normally a good location,  
provided there is no cooking range or refrigerator on  
opposite side of wall.  
4 x 4  
JUNCTION  
BOX  
INSTALL THERMOSTAT  
CAUTION  
FAN  
!
LOW  
To prevent electrical shock and/or equipment  
damage, disconnect electric power to system at  
mainfuseorcircuitbreakerboxuntilinstallation  
is complete.  
HEAT  
90  
80  
70  
60  
50  
SYSTEM  
USE 2 x 4 OR 4 x 4  
JUNCTION BOX  
The thermostat may be mounted on a standard 2 x 4 inch  
verticaloutletboxor2-gangedoutletboxes.Whenmount-  
ing to a 4 x 4 inch junction box is required, use of a  
standard adapter plate (not provided) is necessary. USE  
COPPER CONDUCTORS ONLY.  
WHITE-RODGERS  
70  
60  
80  
1A11-2  
50  
90  
MOUNTING  
SCREWS (2)  
40  
40  
2
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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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