White Rodgers 1E56W 444 Thermostat User Manual

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1E56W-444  
WHITE-RODGERS  
Low Voltage 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  
This low voltage thermostat is designed to provide conve-  
nient control of the heating/cooling system. To provide  
greater room comfort, the sensitive spiral bimetal is com-  
bined with an adjustable heating anticipator and a fixed  
cooling anticipator to provide maximum comfort.  
A
U
T
70  
60  
O
80  
90  
50  
F
A
N
O
N
C
O
O
L
WHITE-RODGERS  
S
Y
S
T
E
M
O
F
F
H
E
A
T
50  
60  
70  
80  
90  
PRECAUTIONS  
Ifindoubtaboutwhetheryourwiringismillivolt,line,orlow This control is a precision instrument, and should be  
voltage, have it inspected by a qualified heating and air handled carefully. Rough handling or distorting compo-  
conditioning contractor, electrician, or someone familiar nents could cause the control to malfunction.  
with basic electricity and wiring.  
CAUTION  
!
Do not exceed the specification ratings.  
To prevent electrical shock and/or equipment  
damage, disconnect electric power to system at  
main fuse or circuit breaker box until installation  
is complete.  
All wiring must conform to local and national electrical  
codes and ordinances.  
CONTENTS  
Do not short out terminals on gas valve or pri-  
marycontroltotest. Shortorincorrectwiringwill  
burn out heat anticipator and could cause per-  
sonal injury and/or property damage.  
Description ......................................................... 1  
Precautions ........................................................ 1  
Specifications..................................................... 2  
Installation.......................................................... 2  
Select Thermostat Location  
Route Wires to Location  
Attach Subbase to Wall  
WARNING  
!
Donotuseoncircuitsexceeding30volts. Higher  
voltage will damage control and could cause  
shock or fire hazard.  
Special System Configurations  
Electric Heat Furnaces (Single Trans-  
former Systems Only)  
Two-Transformer Systems  
Heat Pump Applications  
Special Application Terminals  
Attach Thermostat to Subbase  
Operation & Maintenance .................................. 5  
Adjusting Heat Anticipator  
Calibrating Thermostat  
WHITE-RODGERS DIVISION  
EMERSON ELECTRIC CO.  
9797 REAVIS ROAD  
PART NO. 37-5033B  
Replaces 37-5033A  
9625  
Printed in U.S.A.  
ST. LOUIS, MISSOURI 63123-5398  
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SPECIFICATIONS  
ELECTRICAL DATA  
APPLICATIONS  
The 1E56W-444 is designed for use with  
• Standard heating and cooling systems  
• Electric heating and cooling systems  
• Single stage heat pump systems  
• Two-transformer systems  
• Electronic air cleaners  
• Humidifiers  
• Zone dampers  
This thermostat CANNOT BE USED with:  
• Millivolt systems  
Switch Rating: 24 VAC (30 VAC max.)  
Heating - 0.15 to 1.2 Amps  
Cooling - 0 to 1.5 Amps  
Switch Action: SPST - Sealed mercury switch  
Anticipator Rating:  
Heating - Adjustable from 0.15 to 1.2 Amps  
Cooling - Fixed 24 VAC  
THERMAL DATA  
Temperature Range: 50°F to 90°F (10°C to 32°C)  
Differential: 1°F  
• Multi-stage applications  
INSTALLATION  
1
3. Probe for obstructions in partition before drilling ⁄ ”  
2
SELECT THERMOSTAT LOCATION  
hole in wall at selected location. Take up quarter  
round and drill a small guide hole for sighting (see  
” hole in partition floor  
next to guide hole. In houses without basements, drill  
Proper location insures that the thermostat will provide a  
comfortable home temperature. Observe the following  
general rules when selecting a location:  
fig. 1). From basement, drill 3⁄  
4
1
⁄ ” hole through ceiling and into partition from above  
2
1. Locate thermostat about 5 ft. above the floor.  
(see fig. 1).  
2. Install thermostat on a partitioning wall, not on an  
outside wall.  
4. Through this hole drop a light chain, or 6” chain  
attachedtoastrongcord.Snagcordinbasementwith  
hookedwire.Inhouseswithoutbasements,dropcord  
through hole in ceiling and down partitioning; snag  
cord at the thermostat location.  
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. Attach thermostat wires to cord and pull thermostat  
wires through hole in wall so that 6” of wire protrudes.  
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.  
1
⁄ ” hole for  
2
thermostat wire  
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.  
Stout cord with 6”  
chain attached  
Approximately  
5 feet from floor  
Baseboard  
strip moulding  
9. The living or dining room is normally a good location,  
provided there is no cooking range or refrigerator on  
opposite side of wall.  
1
⁄ ” guide hole  
4
for sighting  
Quarter round  
removed  
ROUTE WIRES TO LOCATION  
NOTE  
3
⁄ ” hole in floor of partition  
4
All wiring must conform with local and national electrical  
codes and ordinances.  
Hooked wire for snagging chain  
Figure 1. Routing thermostat wires  
1. If an old thermostat being replaced is in a satisfactory  
location, and the wiring appears to be in good condi-  
tion, use existing wiring. If in doubt, re-wire.  
2. If a new location is chosen or if this is a new installa-  
tion, thermostat wiring must first be run to the location  
selected.  
2
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energized, disconnect the wire from the old thermostat's  
terminal and connect it either to the: 1) B terminal, if the  
reversing valve is energized on a call for heat; or to the 2)  
O terminal, if the reversing valve is energized on a call for  
cool. If the system heats on a call for cool, or vice versa,  
this wire has been connected to the wrong terminal.  
ATTACH SUBBASE TO WALL  
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.  
NOTE  
1. Disconnect electrical power at main fuse or circuit  
breaker.  
RH and RC must be jumpered for single transformer heat  
pump systems.  
2. Pull wires through opening near center of subbase  
and connect wires beneath terminal screws (see figs.  
2through6fortypicalwiringforeachapplication.Also  
refertosubsectionsbelowforspecialsystemconfigu-  
rations).  
Special Application Terminals  
The B and O terminals can provide switching for special  
functions other than heat pump operation. When the  
system switch is in the HEAT position, the B terminal is  
energized. When the system switch is in the COOL  
position, the O terminal is energized.  
3. Push excess wiring into wall and plug hole with fire-  
resistant material (such as fiberglass insulation) to  
prevent drafts from affecting thermostat operation.  
4. Positionsubbaseoverholeinwallandmarkmounting  
hole locations on wall.  
ATTACH THERMOSTAT TO SUBBASE  
1. Remove cover from thermostat base by gripping the  
base in one hand. Use the other hand to pull gently at  
the top or bottom of the cover.  
5. Drill mounting holes.  
6. Fasten subbase loosely to wall, as shown, using two  
mounting screws. Place a level against bottom of  
subbase, adjust until level, and then tighten mounting  
screws to secure subbase. If holes in wall are too  
large and do not allow you to tighten subbase snugly,  
use plastic screw anchors to secure subbase.  
2. Carefully remove the shipping protective packing  
from the switch.  
3. Attachthermostatbasetosubbase,beingsurethatall  
captivescrewsaretightenedsnugly, sincetheyserve  
as electrical connections between thermostat and  
subbase (see fig. 7).  
SPECIAL SYSTEM CONFIGURATIONS  
4. Snap cover on thermostat and set switches and  
temperature lever to desired set point (see OPERA-  
TION section).  
Electric Heat Furnaces (Single Transformer Systems  
Only)  
5. Turn on power to the system.  
The subbase as shipped may not operate the fan cor-  
rectly. If both the heating and cooling system must oper-  
ate the fan relay, remove the yellow factory-installed  
jumper wire from the Y terminal and connect it to the A  
terminal. The fan should now cycle when the thermostat  
calls for either heat or cool.  
Two-Transformer Systems  
A
U
T
O
F
A
N
CAUTION  
!
O
N
If two transformers are used, they MUST be in  
phase. Failure to do so may result in personal  
injury and/or property damage.  
C
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NOTE  
Wire color DOES NOT indicate polarity. Polarity is ob-  
tained from an oscilloscope or voltmeter.  
Heat Pump Applications  
KEEP THIS AREA  
CLEAR OF WIRES  
Hole  
in wall  
Mounting screws  
This subbase WILL NOT provide multi-stage heating or  
cooling operation. For single-stage heat pump applica-  
tions, install a short jumper wire across terminals W and  
Y. If the old thermostat has a terminal that is continuously  
Figure 2. Thermostat subbase  
3
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CAUTION  
NOTE  
!
Take care when securing and routing wires so  
they do not short to adjacent terminals or rear of  
thermostat.Personalinjuryand/orpropertydam-  
age may occur.  
These typical wiring diagrams show only the terminal  
identification and wiring hookup. Always refer to wiring  
instructions, provided by equipment manufacturer, for  
system hookup operation.  
Fixed Cooling  
Anticipator  
Adjustable Heating  
Anticipator  
THERMOSTAT  
Captive  
Screws  
Fan  
Switch  
System  
Switch  
OFF  
ON  
AUTO  
SUBBASE  
System  
Switch  
W
A*  
B
RH  
Y
G
RC  
O
SYSTEM  
Moveable  
Yellow Jumper  
* Terminal "A" is not for field wiring. See  
SPECIAL SYSTEM CONFIGURATIONS  
section for proper use of terminal "A".  
Factory-installed Jumper  
Figure 3. Typical wiring diagram (see figs. 4, 5, and 6 for typical system/thermostat wiring)  
KEEP THIS  
AREA CLEAR  
OF WIRES!  
G
RC  
B
Factory-installed  
Red Jumper Wire  
O
THERMOSTAT  
WIRING  
W
Factory-installed  
Yellow Jumper Wire  
RH  
A
Y
Factory-Installed Jumper  
RH  
W
B
O
Y
G
RC  
A
Heat  
Relay  
Compressor  
Relay  
Fan  
Relay  
Hot  
* *  
*
SYSTEM  
24 VAC  
120 VAC  
Neutral  
Terminal energized  
in cooling  
Terminal energized  
* *  
in heating  
*
TRANSFORMER  
Figure 4. Typical wiring for single transformer heating/cooling system  
KEEP THIS  
AREA CLEAR  
OF WIRES!  
G
RC  
B
Factory-installed  
Yellow Jumper Wire  
O
THERMOSTAT  
WIRING  
W
NOTE: Remove factory-  
installed jumper between  
RC and RH terminals for  
this application.  
RH  
A
Y
RH  
W
B
A
O
Y
G
RC  
TRANSFORMER  
Hot  
TRANSFORMER  
Hot  
Heat  
Relay  
Compressor  
Relay  
Fan  
Relay  
* *  
*
24 VAC  
24 VAC  
120 VAC  
Neutral  
120 VAC  
SYSTEM  
Neutral  
Terminal energized  
in cooling  
Terminal energized  
* *  
in heating  
*
Figure 5. Typical wiring for two-transformer heating/cooling system  
4
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KEEP THIS  
AREA CLEAR  
OF WIRES!  
G
RC  
Factory-installed  
Red Jumper Wire  
B
O
THERMOSTAT  
WIRING  
W
Factory-installed  
Yellow Jumper Wire  
Field-installed  
Jumper Wire  
RH  
A
Y
Factory-Installed Jumper  
Field-Installed Jumper  
RC  
G
RH  
O
W
Y
B
A
TRANSFORMER  
Hot  
Fan  
Relay  
Compressor  
Relay  
*
* *  
24 VAC  
120 VAC  
Neutral  
SYSTEM  
Terminal energized  
in cooling  
Terminal energized  
in heating  
*
* *  
Figure 6. Typical wiring for single transformer, single stage heat pump system  
Captive  
screws  
O
A
HR  
U
T
F
A
N
O
O
N
G
70  
60  
A
80  
90  
Y
50  
CR  
C
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F
W
WHITE-RODGERS  
B
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60  
70  
80  
90  
THERMOSTAT  
BASE  
COVER  
Figure 7. Attach thermostat to subbase  
OPERATION &  
MAINTENANCE  
This thermostat is easy to operate. Fig. 8  
shows how the heating/cooling system  
and fan operate when the switches are in  
various positions. Use the system switch  
to select either heating or cooling, or to  
turn the heating/cooling system off. Use  
the fan switch to control fan operation.  
When the fan switch is in the AUTO  
position, thefanwillcyclewiththeheating  
orcoolingsystem(thefanwillnotrunifthe  
system switch is in the OFF position and  
the fan switch is in the AUTO position).  
When the fan switch is in the ON position,  
the fan will run continuously, regardless  
of system switch position (even if the  
system switch is set to OFF, the fan will  
run if the fan switch is in the ON position).  
Shows switch position  
FAN  
SYSTEM  
OPERATION  
AUTO ON  
COOL OFF HEAT  
No heating; no cooling; no fan  
No heating; no cooling; fan runs continuously  
Cooling system cycles from thermostat; fan runs  
continuously  
Cooling system and fan cycle from thermostat  
Heating system cycles from thermostat; fan cycles  
from fan control on furnace  
Heating system cycles from thermostat; fan runs  
continuously  
Figure 8. Subbase switching and thermostat/system operation  
5
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3. Remove thermostat cover. Slip 732” wrench onto hex  
nut beneath bimetal. While holding temperature ad-  
justment lever stationary, turn hex nut clockwise until  
mercuryshiftstotherightendofthetube(seefig.10).  
ADJUSTING HEAT ANTICIPATOR  
CAUTION  
!
The adjustable heat anticipator WILL BURN OUT  
if 25 VAC is applied directly to the thermostat by  
shorting out the primary control during testing.  
This may cause personal injury and/or property  
damage.  
4. Move temperature adjustment lever to lowest setting.  
5. Replace thermostat cover. Wait 10 minutes for bi-  
metal temperature to stabilize. Do not stand near the  
thermostat during this period, as your breath and  
body heat will affect bimetal temperature.  
This thermostat is equipped with an adjustable heat  
anticipator and was preset at the factory to provide  
satisfactoryoperationoftheheatingsystemundernormal  
conditions. If additional adjustments are necessary, they  
may be made as follows (see fig. 9):  
6. Move temperature adjustment lever to correspond to  
actual room temperature. Then remove thermostat  
cover.  
7. Slip 732” wrench onto hex nut. While holding tempera-  
tureadjustmentleverstationary,turnhexnutcounter-  
clockwise until mercury just barely shifts to the left  
end of the tube (see fig. 10).  
1. Remove thermostat cover.  
2. If heat cycle is too long, set heat anticipator to a  
slightly lower dial setting (1⁄  
division).  
2
8. Replace thermostat cover and set temperature ad-  
justment lever to desired temperature. Turn on elec-  
trical power to system.  
3. If heat cycle is too short, set heat anticipator to a  
slightly higher dial setting (1⁄  
4. Replace thermostat cover.  
2
division).  
.25  
.3  
.4  
CALIBRATING THERMOSTAT  
.2  
.5  
.18  
This thermostat has been carefully adjusted at the factory  
and should not require recalibration.  
.6  
.8  
.15  
1.  
Move this lever to  
adjust heat  
Arrow points to the  
Duetoenvironmentalconditions,duringnormaloperation  
there may be a few degrees of difference between the  
indicator setting of the thermostat and actual room tem-  
perature. If the disagreement is appreciable, however,  
first make sure that the thermostat is properly located and  
leveled. Then, if recalibration still seems necessary, pro-  
ceed as follows:  
matched current rating  
of the primary control  
anticipator  
Figure 9. Anticipator adjustment  
7
32”  
Calibration  
wrench  
CAUTION  
!
To prevent electrical and/or equipment damage,  
disconnect electrical power to the system until  
recalibration is complete.  
Bimetal  
Temperature  
adjustment  
lever  
1. The anticipator’s heat may adversely affect thermo-  
stat recalibration. To prevent this, disconnect electri-  
cal power to the thermostat at the furnace, main fuse,  
or breaker box.  
2. Movetemperatureadjustmentlevertoasettingabout  
5° above room temperature.  
Figure 10. Calibrating thermostat  
If you need further information about this product, write to us at:  
WHITE-RODGERS DIVISION  
Emerson Electric Co.  
9797 Reavis Road  
St. Louis, MO 63123-5398  
Attn: Technical Service Department  

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