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White Rodgers 1F78-144 Non Programmable Thermostat Instruction Manual
CONTENTS
Preparations .................................................. 1
Thermostat Details ........................................ 1
Removing Old Thermostat............................. 1
Mounting and Wiring...................................... 2
Check Thermostat Operation......................... 3
Specifications ................................................ 5
Troubleshooting ............................................. 5
Installation Instructions for
Heating & Air Conditioning
1F78
Non-Programmable Thermostat
YOUR THERMOSTAT REPLACES
Typical System Compatibility Chart
PREPARATIONS
1
Assemble tools required below.
1F78
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)
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
No
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
WIRE CUTTER/STRIPPER
No
Failure to follow and read all instructions carefully
before installing or operating this control could cause
personal injury and/or property damage
Ye s
Ye s
No
12 VDC Mobile Home Application
Multistage Systems
Systems Exceding 30VAC, 1.5 Amp
No
REMOVING OLD THERMOSTAT
THERMOSTAT DETAILS
3
2
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.
-
-
+
+
Before removing wires from old thermostat’s switching subbase,
label each wire with the terminal designation it was removed
from.
W
RH
B
RC
W904
Clip for
Celsius
Display
1. Remove Old Thermostat: A standard heat/cool thermostat
consists of three basic parts:
W904
G
O
Y
a. The cover, which may be either a snap-on or hinge type.
b. The base, which is removed by loosening all captive screws.
W905
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
complete. Ensure that electrical power is disconnected.
Mounting
hole
W905 Clip
for Hydronic
System
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.
Electric/Gas
Switch
NOTE: Earlier models refer to 37-7006 for jumper locations.
4. Identify each wire attached to the old thermostat using the
labels enclosed with the new thermostat.
Figure 1.Thermostat
5. Disconnect the wires from the old thermostat one at a time. DO
NOT LET WIRES FALL BACK INTO THE WALL.
6. Install new thermostat using the following procedures.
PART NO. 37-6615C
Replaces 37-6615B
1028
| General | Details |
|---|---|
| Name | White Rodgers 1F78-144 Non Programmable Thermostat Instruction Manual |
| Make | WHITE RODGERS |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.42 MB |
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White-Rodgers 1F78-144 Manual: Questions and Answers
What voltage does the White-Rodgers 1F78-144 operate at?
24 volt systems. The compatibility chart lists all supported configurations at this voltage. Instruction Manual, p. 1
What does it mean when the White-Rodgers 1F78-144 display goes blank or the keypad stops responding?
A voltage spike, static discharge, or dead batteries caused the issue. Replace batteries and reset the thermostat if needed. Instruction Manual, p. 6
How often should I replace batteries in the White-Rodgers 1F78-144?
Once a year with premium alkaline batteries such as Duracell or Energizer. Instruction Manual, p. 5
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