White Rodgers 1E30-373 User Manual
INSTALLATION INSTRUCTIONS
WHITE-RODGERS
This low voltage room thermostat has open on rise switch
action and is designed for use on various types of heating
plants. It is equipped with a adjustable heater which may be
adjusted for primary control current draws of .15 to 1.0
Amps. A locking cover and kit of 4 alien screws and wrench is
provided to prevent tampering.
SPECIFICATIONS
Switch Rating:
Heating: 1.0a at 30vac max.
Heating Anticipator; .15 to 1.0a
Range: 35°F to 75°F
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,
etc.
4. Avoid locations close to doors that lead outside, windows,
or adjoining outside walls.
ROUTING WIRES TO LOCATION
1. Before drilling hole in wall at selected location, take up
quarter round and drill a small guide hole for sighting.
From basement, drill 3/4” hole in partition floor next to
guide hole. (On basementless houses, drill 1/2” hole
through ceiling above partition.)
Probe for obstructions in the partition. Then drill 1/2” hole
through wall at selected location.
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MOUNTING THERMOSTAT
1E30-373
LOW VOLTAGE THERMOSTAT
5. Avoid locations close to radiators, warm air registers, or in
the direct path of heat 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. The living or dining room is normally a good location,
provided there is no cooking range or refrigerator on
opposite side of wall.
3. Through this hole in wall drop a light chain, or 6” chain
attached to a strong cord, and snag cord with hooked wire
from basement. (On basementless houses, drop cord
from ceiling and snag if at the thermostat location).
4. Attach thermostat cable to cord and pull cable through
hole in wall so that 6” of cable protrudes.
1. Pull thermostat wires through large hole in center of wall
mounting plate and fasten wires beneath two terminal
screws on bottom side of plate, (fig. 1)
2. Push excess wire into wall or switch box and plug up hole
to prevent drafts from affecting thermostat operation.
3. Thermostat must be ievei to assure optimum
performance. Place level on top of wall mounting plate
and mark hole locations for mounting screws. Attach
plate loosly to wall with the two screws provided. Again
place level on top of plate to be sure it is level. Then
tighten screws.
4. Remove cover from thermostat base by pulling outward.
Remove and discard pad (shipping protection forswitch).
Place thermostat base onto wall mounting plate and
tighten all three captive screws securely. Install
thermostat cover and tighten all four alien screws down
with wrench to prevent tampering.
WHITE-RODGERS DIVISION
Is
EMERSON ELECTRIC CO.
9797 REAVIS ROAD
ST, LOUIS, MISSOURI 63123
Printed in U.S.A.
PART No. 37-3479B
Replace 37-3479
8904
All wiring should be done according to local and national electrical codes and ordinances.
Because of the many possible uses of these room
thermostats, no wiring diagrams are presented. Use the
wiring diagram that is shown on the instruction sheet that is
packed with the primary controi, or the one that is supplied
by the manufacturer of the heating equipment.
HEAT-ANTICIPATION
This thermostat is equipped with an adjustable heater. Set
heater indicator to match the current rating of the primary
control. The heater may be adjusted for current ratings from
.15 to 1.0 Amps. (fig. 2)
Adjustments
Cycles too long — Set adjustable heater to a slightly lower
dial setting (1/2 division).
Cycles too short — Set adjustable heater to a slightly
higher dial setting (1/2 division).
CALIBRATION ADJUSTMENT
These thermostats have been carefully adjusted at the
factory and should not require re-calibration.
A few degrees difference between theindicatorsetting of the
thermostat and actual room temperature is not considered
too important. If the disagreement is much greater, however,
first make sure that the thermostat is properly located and
leveled. Then, if re-caiibration still seems necessary,
proceed as follows:
1. Move temperature adjustment lever to a setting about 5°
above room temperature.
2. Remove thermostat cover. Slip standard 7/32” wrench
onto hex nut beneath bimetal, and, holdirtg temperature
adjustment lever stationary, turn hex nut clockwise until
mercury shifts to right end of tube. (fig. 3)
3. Move temperature adjustment lever to lowest setting.
4. Replace thermostat cover. Wait 10 minutes for bimetal
temperature to stabilize. Don’t stand near thermostat
during this period as your breath and body heat will affect
temperature of bimetal.
5. Move temperature adjustment lever to correspond to
actual room temperature. Then remove thermostat cover.
6. Slip 7/32” wrench onto hex nut, holding temperature
adjustment lever stationary, turn hex nut counterclock
wise until mercury just barely shifts to left end of tube.
Then replace cover and set thermostat to desired
temperature.
RATIN G OF P RI MARY CO NTR OL)
Fig. 2
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