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White Rodgers 1E78 5 2 Day Programmable Thermostat Instruction Manual
CONTENTS
Preparations .................................................. 1
Thermostat Details ........................................ 1
Removing Old Thermostat............................. 1
Mounting and Wiring...................................... 2
Check Thermostat Operation......................... 3
Programming your Thermostat...................... 4
Specifications ................................................ 6
Troubleshooting ............................................. 6
Installation Instructions for
Heating & Air Conditioning
1E78
5/2 Day Programmable Thermostat
YOUR THERMOSTAT REPLACES
Typical System Compatibility Chart
PREPARATIONS
1
1E78
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Standard Heat Only Two Wire Gas or Oil Fired Systems (24 volt)
Electronic Ignition Heat Only Two Wire Systems (24 volt)
Electronic Ignition Heat Only Gas or Oil Fired Systems (24 volt)
Standard Heat/Cool Systems (24 volt)
Assemble tools required as shown below.
FLAT BLADE SCREWDRIVER
Heat/Cool Systems Electric Heat (24 volt)
Heat Only Electric Heat Systems (24 volt)
Cool Only Systems (24 volt)
HAND OR POWER
DRILL WITH 3/16 INCH
DRILL BIT, IF NEEDED
Heat Pump Systems (No Aux. or Emergency Heat)
Hot Water Zone Heat Only (Two Wire) Systems
Hot Water Zone Heat Only (Three Wire) Systems
Line Voltage Heating or Baseboard 110/240 Volt Systems
Millivolt Systems Floor or Wall Furnaces
12 VDC Mobile Home Application
WIRE CUTTER/STRIPPER
No
Yes
Yes
No
Failure to follow and read all instructions carefully
before installing or operating this control could cause
personal injury and/or property damage
Multistage Systems
Systems Exceeding 30VAC, 1.5 Amp
No
THERMOSTAT DETAILS
REMOVING OLD THERMOSTAT
2
3
Mounting
Hole
CAUTION
!
To prevent electrical shock and/or equipment damage,
disconnect electrical power to the system at the main fuse
or circuit breaker until installation is complete.
Beforeremovingwiresfromoldthermostat’sswitchingsubbase, label
each wire with the terminal designation it was removed from.
W903
W904
RC
Y
G
O
RH
B
W
1. Remove Old Thermostat: A standard heat/cool thermostat
consists of three basic parts:
W905
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.
ELEC GAS
2. Shut off electricity at the main fuse box until installation is com-
plete. Ensure that electrical power is disconnected.
Elec/Gas
Switch
Back of
Thermostat Body
Mounting
Hole
Base
3. Remove the front cover of the old thermostat. With wires still
attached, remove wall plate from the wall. If the old thermostat
has a wall mounting plate, remove the thermostat and the wall
mounting plate as an assembly.
W903 - clip to disable EMR feature
W904 - clip for Celcius display
W905 - clip for hydronic system
4. Identify each wire attached to the old thermostat.
NOTE: Earlier models refer to 37-7006 for jumper locations.
5. Disconnect the wires from the old thermostat one at a time. DO
NOT LET WIRES FALL BACK INTO THE WALL.
Figure 1.Thermostat
6. Install new thermostat using the following procedures.
PART NO. 37-6542C
Replaces 37-6542B
1026
| General | Details |
|---|---|
| Name | White Rodgers 1E78 5 2 Day Programmable Thermostat Instruction Manual |
| Make | WHITE RODGERS |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.3 MB |

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