White Rodgers 1E56N-444 User's Manual
System
Models
Standard Heating & Cooling Systems –
4 or 5 wires
Standard Heat Only Systems
Standard Central Air Conditioning
Gas or Oil Heat
All Models
Hydronic (Hot Water) Zone Heat – 2 wires
Electric Furnace
Heat Pump (No Aux or Emergency Heat)
Heat Pump (with Aux or Emergency Heat)
Baseboard Electric Heating or Line Voltage
None
(120 or 240 Volt)
Millivolt Heat Only Systems –
Floor or Wall Furnaces
All Models
Hydronic (Hot Water) Zone Heat – 3 wires
A. Removebasefromsubbase: Loosen the screws on the base and remove.
B. Mountswitchingsubbase:Use the screws provided to mount the subbase or
wallplate to wall (see Fig. 1).
C. Attachwirestoappropriateterminals:
•Fortwowiresystems(HeatOnlyorCoolOnly). Replace subbase with wall-
plate. If you have a two-wire
HeatOnly system, attach one wire to Rand one to
wire
W.If you have a two-wire CoolOnlysystem, attach one wire to Rand one to
wire to
Y.Tighten any unused terminals securely. (see Fig. 5 and 6).
•Ifyoursystemhasmorethantwowires:Use the cross reference chart to
determine correct wire connections. If you have a four-wire heat/cool system leave
the factory installed jumper between
RC and RH attached (see Fig 2.). If your sys-
tem has five wires remove the factory installed jumper between
RCand RH(see
Fig 3.).
•Electricheatorsinglestageheatpumpsystems:These thermostats are
configured from the factory to operate a heat/cool, fossil fuel (gas, oil, etc.) forced
air system. This is correct for any system that DOES NOT require the thermostat
to energize the fan on a call for heat. If your system is an electric heat or heat-
pump system that REQUIRES the thermostat to turn on the fan on a call for heat,
remove the yellow factory-installed jumper wire from the
Yterminal and connect
it to the
Aterminal. This will allow the thermostat to energize the fan immediately
on a call for heat. If you are unsure if the heating system requires the thermostat
to control the fan, contact a qualified heating and air conditioning service person.
For single stage heat pump applications (no auxillary heat), install a short jumper
wire (not included) across terminals
Wand Y.If the system has a reversing valve
connection energized in Cooling, attach it to
O.If the system has a reversing valve
connection energized in Heating, attach it to
B(see Fig. 4). This thermostat will not
provide multi-stage heating or cooling.
D. MountThermostat Base: Gently push excess wire back into the wall opening
and plug hole with a fire-resistant material, such as fiberglass insulation to prevent
drafts from affecting thermostat operation. Mount the thermostat base to the sub-
base using the three captive screws on the thermostat base. (See Fig. 1) Tighten
the screws securely. Proceed to Step #5.
InstallationInstructionsfor:
Horizontal
1F56N-444
Snap-Action
Vertical
1E56N-444
Snap-Action
YOURTHERMOSTATREPLACES
2
1
3
Assemble tools required: power drill, flat blade screwdriver, wire cutter/stripper, level.
Failuretofollowandreadallinstructionscarefullybeforeinstallingoroperat-
ingthiscontrolcouldcausepersonalinjuryand/orpropertydamage.
THERMOSTATFEATURES
PREPARATIONS
G
RC
Y
W
B
OFF
FAN
AUTO
ON
SYSTEM
COOL
HEAT
Mounting Screw
KEEP THIS AREA
CLEAR OF WIRES
Hole
in Wall
Mounting Screw
A
RH
O
6
Y
4
5
R
Mounting Hole
Mounting Hole
Figure1.Thermostatsubbaseandwallplate
Topreventelectricalshockand/orequipmentdamage,disconnectelectricalpow-
ertothesystematthemainfuseorcircuitbreakeruntilinstallationiscomplete.
CAUTION
!
Before removing wires from old thermostat’s switching subbase, label each wire with
the terminal designation it was removed from.
1. RemoveOldThermostat:A standard heat/cool thermostat consists of three basic
parts:
a. The cover, which may be either a snap-on or hinge type.
b. The base, which is removed by loosening all captive screws.
c. The switching subbase, which is removed by unscrewing the mounting
screws that hold it on the wall or adaptor plate.
Make a note here
of the anticipator setting on the old thermostat for
future reference and use in step 5.
The heat anticipator pointer, if adjustable, will be set at one of a series of numbers
representing the current rating of the primary control in your furnace. The number will
be one of the following: .2, .4, .8, etc. or 0.2, 0.4, 0.8, etc.
REMOVINGOLDTHERMOSTAT
REMOVINGOLDTHERMOSTAT(cont’d)
3
If no heat anticipator/indication is showing, do not be concerned; move on to the
next step.
ATTENTION! This product does not contain mercury. However, this product may
replace a unit which contains mercury.
Do not open mercury cells. If a cell becomes damaged, do not touch any spilled
mercury. Wearing non-absorbent gloves, take up the spilled mercury and place into
a container which can be sealed. If a cell becomes damaged, the unit should be
discarded.
Mercury must not be discarded in household trash. When the unit this product is
replacing is to be discarded, place in a suitable container. Refer to www.white-rodg-
ers.com for location to send product containing mercury.
4 MOUNTINGANDWIRING
Do not use on circuits exceeding specified voltage. Higher voltage will
damagecontrolandcouldcauseshockorfirehazard.
Donotshortoutterminalsongasvalveorprimarycontroltotest.Shortor
incorrectwiringwilldamagethermostatandcouldcausepersonalinjury
and/orpropertydamage.
Thermostatinstallationandallcomponentsofthesystemshallconformto
ClassIIcircuitspertheNECcode.
WARNING
!
Takecarewhensecuringandroutingwiressotheydonotshorttoadjacent
terminalsorrearofthermostat.Personalinjuryand/orpropertydamagemay
occur.
CAUTION
!
TERMINALCROSSREFERENCECHART
NewThermostat
OtherManufacturers’
TerminalDesignation
TerminalDesignation
*
*
RH
4
RH
M
R5
R
RC
R
R
V
–
–
G
G
G
F
G
G
W
W
W
H
4
W
Y
Y
Y
C
Y6
Y
* These are four-wire, single-transformer systems. Factory installed jumper wire
between the RH and RC terminals must remain in place.
PARTNO.37-6881B
Replaces 37-6881A
0921
www.white-rodgers.com
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