White Rodgers 1A11-2 User manual

Printed in U.S.A. PART NO. 37-4113D
Replaces 37-4113C
9609
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/
orblowermotorsonfancoilunitsinmanualchangeover,
heating/cooling systems. It features a system switch for
manualselectionofheat -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.
Color-coded leads are provided for connection to field
wiring. The thermostat can be wired to perform the
following functions:
- Thermostat cycles both fan and valve.
- Thermostat cycles fan only.
- Thermostat cycles valve only.
- System switch “OFF” breaks all circuits.
1A11-2
Fan Coil Heating-Cooling Thermostat
INSTALLATION INSTRUCTIONS
WHITE-RODGERS
WHITE-RODGERS DIVISION
EMERSON ELECTRIC CO.
9797 REAVIS ROAD
ST. LOUIS, MISSOURI 63123-5398
WHITE-RODGERS
60 70
50
40
80
90
50 60 70 80 90 HIGH
MED
LOW
FAN
HEAT
OFF
COOL
SYSTEM
PRECAUTIONS
Operator: Save these instructions for future use!
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.
Do not exceed the specification ratings.
All wiring must conform to local and national electrical
codes and ordinances.
This control is a precision instrument, and should be
handled carefully. Rough handling or distorting compo-
nents could cause the control to malfunction.
CAUTION
!
To prevent electrical shock and/or equipment
damage,disconnectelectricpowertosystem,at
main fuse or circuit breaker box, until installa-
tion is complete.
Do not use on circuits exceeding specified volt-
age. Higher voltage will damage control - could
cause shock or fire hazard.
WARNING
!

2
NOTE
SELECT THERMOSTAT LOCATION
Properlocation insures thatthe thermostat willprovide a
comfortable home temperature. Observe the following
general rules when selecting a location:
1. Locate thermostat about 5 ft. above the floor.
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.
4. Avoid locations close to windows, adjoining outside
walls, or doors that lead outside.
5. Avoid locations close to air registers or in the direct
path of air from them.
6. Makesuretherearenopipesorductworkinthatpart
of the wall chosen for the thermostat location.
7. Never locate thermostat in a room that is warmer or
coolerthantherestofthehome,suchasthekitchen.
8. Avoid locations with poor air circulation, such as
behind doors or in alcoves.
9. Thelivingordining roomisnormallyagoodlocation,
provided there is no cooking range or refrigerator on
opposite side of wall.
INSTALL THERMOSTAT
To prevent electrical shock and/or equipment
damage, disconnect electric power to system at
mainfuseorcircuitbreakerboxuntilinstallation
is complete.
Thethermostatmaybemountedonastandard2x4inch
verticaloutletboxor2-gangedoutletboxes.Whenmount-
ing to a 4 x 4 inch junction box is required, use of a
standardadapterplate(notprovided)isnecessary. USE
COPPER CONDUCTORS ONLY.
SPECIFICATIONS
Contact Structure: Snap action
Electrical Rating:
Mounting: Standard 2 x 4 inch outlet box or 2-ganged
outlet boxes. Mounting screws are provided with the
thermostat.Withastandardadapterplate(notprovided),
this thermostat may be mounted on a 4 inch square
junction box
Switch Action: SPDT
(Heating - open on rise)
(Cooling - close on rise)
Temperature Range: 36°F to 90°F (2°C to 32°C)
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-
tionandoperatingcharacteristicsoftheheating
equipment.
System Switch: Heat - Off - Cool
Fan Switch : Low - Medium - High
FAN
SYSTEM
LOW
HEAT
50 60
WHITE-RODGERS
70 80 90
40
40
50
60 70
80
90
4 x 4
JUNCTION
BOX
ADAPTER PLATE
(NOT PROVIDED)
USE 2 x 4 OR 4 x 4
JUNCTION BOX
1A11-2
MOUNTING
SCREWS (2)
VOLTAGE (AC) 120V 240V 277V
Full Load Amps. 5.5 2.75 2.3
Locked Rotor Amps. 33.0 16.5 13.8
Pilot Duty 125VA
CAUTION
!
INSTALLATION
Install the thermostat as follows:
1. Before mounting, connect system wiring to proper
color-codedleadsatrearofthermostat.Followequip-
ment manufacturer's instructions or refer to wiring
diagram for typical system hookups.
2. Remove thermostat cover by grasping top and bottom
ofcoverandpullstraightout.Dresswiringintojunction
boxand secure thermostatto outlet box with mounting
screws.
DO NOT PUSH OR DAMAGE THE KNOB SENSING
ELEMENT DURING INSTALLATION.
3. Installthermostatcover,turnknobtodesiredsetting,
andset selector switches forthe appropriate system
function and fan speed.
CAUTION
!

3
INSTALLATION (cont’d)
WIRING
To prevent electrical shock and/or equipment
damage, disconnect electric power to system at
mainfuseorcircuitbreakerboxuntilinstallation
is complete.
- Thermostat cycles both fan and valve
- Thermostat cycles fan only (if valve is not used,
tape orange lead)
- System“OFF”breaks both valveandfan circuits
- Thermostat cycles valve only with continuous
fan (interchange valve and L1 leads)
TAN
BLUE
COOL
COOL
HEAT
HEAT
VALVE L1 GNDHIGH
HIGH
FAN
SWITCH
SYSTEM
SWITCH
MED
FAN
MED
OFF
LOW
LOW
RED
BLUE
RED
ORANGE
BLACK
GREEN
12
3
1A11-2 5-wire for single valve,
manual heat/cool changeover
CAUTION
!
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.
All wiring should be done according to local and national
electrical codes and ordinances.