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READ ALL INSTRUCTIONS CAREFULLY, BEFORE INSTALLING OR OPERATING THIS THERMOSTAT
KEEP INSTRUCTION SHEET FOR FUTURE USE
This Light Duty Line Voltage Heating-Cooling Thermostat is
designed for controlling fan motors, circulator motors,
contactors, motor starters, valves, etc. To provide greater
room comfort, the thermostat is equipped v\/lth fixed
anticipators.
Two dial stops are supplied, which may be used for making a
maximum or minimum setting, a limited temperature range
or a locked dial setting. (See parts package).
The thermostat may be converted to horizontal mounting by
applying the adhesive backed horizontal dial over the
vertical dial. (See dial package).
The temperature may be set anywhere between 36° and 90° F
or 2° and 32°C by turning knob to the desired temperature
on the dial.
Positive off or system selection can be obtained by using a
switching sub-base.
SPECIFICATIONS
Switch Action: S.P.D.T.
(Heating, open on rise)
(Cooling, close on rise)
Range: 36 to 90° F. or 2° to 32° C.
CAUTION
________________
5° C, damage to the building and/or contents may result
due to freezing. This is possible due to factory calibration
tolerances, thermostat location and operating
characteristics of the heating equipment.
When thermostat is set below 40° F or
SELECTING LOCATION
The proper location of the room thermostat is most
important to insure that it will provide a comfortable home
temperature. Observe the following general rules when
selecting a location:
1. Locate it about 5 ft. above the floor.
2. Install it on a partitioning wall, not on an outside wall.
3. Never expose It to direct light from lamps, sun, fireplaces
or any temperature radiating equipment.
4. Avoid locations close to doors that lead outside, windows,
or adjoining outside walls.
— INSTRUCTIONS —
TYPE 1A10-SERIES
LIGHT DUTY LINE VOLTAGE
HEATING-COOLING
THERMOSTAT
DEGREES FAHRENHEIT
TYPE
Contact Structure: Snap Switch
Electrical Rating:
Voltage (A.C.)
Full Load Amps.
Locked Rotor Amps.
Resistive Amps.
Pilot Duty 125 VA
5. Avoid locations close to air registers, or in the direct path
of air from them.
6. Make sure there are no pipes or duct work in that part of
the wall chosen for the thermostat location.
7. Never locate It in a room that is warmer or cooler than the
rest of the home, such as the kitchen.
8. Avoid location with lack of air circulation, such as behind
doors or alcoves.
9. The living or dining room is normally a good location,
provided there is no cooking range or refrigerator on
opposite side of wall.
DEGREES CENTIGRADE
TYPE
120v. 240v.
8 4 4
48
24
8 8 8
277v.
24
INSTALLATION
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.
The thermostat may be mounted in any standard 3" x 2" or 4"
X 2" electrical outlet box. For ease of installation, use a deep
type box. USE COPPER CONDUCTORS ONLY.
Installation should be made as follows:
1. Cut field just long enough to reach wiring terminals with
thermostat held in palm of hand. (Appx. 6")
Printed in U.S.A.
2. Strip field wires 1/2" and make connections to wiring
terminals. Connect load (or loads) as shown on the
diagram for your application. (See wiring)
3. Remove thermostat cover by grasping top and bottom of
cover and pull straight out. Dress wiring into switch box
and secure thermostat to outlet box with mounting
screws.
NOTE: DO NOT PUSH OR DAMAGE THE KNOB
SENSING ELEMENT DURING INSTALLATION.
4. Install thermostat cover and turn knob to desired setting.
PART No. 37-3911
Replaces 37-3655-1, 37-3657, 37-3842, 37-3867
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WIRING
NOTE: All wiring should be installed according to local and national electrical codes and ordinances.
INTERNAL SCHEMATIC OF 1A10 TYPICAL HOOK-UP FOR HEATING ONLY SYSTEM
TYPICAL HOOK-UP FOR COOLING ONLY SYSTEM
FAN COIL SYSTEM
HEATING-COOLING SYSTEM USING A
MANUAL CHANGEOVER SWITCH
■ POSITIVE OFF OR SYSTEM SELECTION CAN
BE OBTAINED BY USING A SWITCHING SUB-BASE.
HEATING-COOLING FAN-COIL SYSTEM
USING TWO OR MORE THERMOSTATS