Emerson White-Rodgers 1F78 Instrucciones De Instalación

Installation Instructions for
Heating & Air Conditioning
Non-Programmable Thermostat
YOUR THERMOSTAT REPLACES
Typical System Compatibility Chart
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)
Heat/Cool Systems Electric Heat (24 volt)
Heat Only Electric Heat Systems (24 volt)
Cool Only Systems (24 volt)
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
Multistage Systems
Systems Exceding 30VAC, 1.5 Amp
2

THERMOSTAT DETAILS

-
W904
Clip for
Celsius
W904
Display
W905
Mounting
hole
W905 Clip
for Hydronic
System
NOTE: Earlier models refer to 37-7006 for jumper locations.
1F78
1F78
Mounting
+ - +
W RH B RC
G O Y
ELEC GAS
Electric/Gas
Switch
Figure 1. Thermostat
www.white-rodgers.com
www.emersonclimate.com
CONTENTS
Preparations .................................................. 1
Thermostat Details ........................................ 1
Removing Old Thermostat ............................. 1
Mounting and Wiring ...................................... 2
Check Thermostat Operation ......................... 3
Specifications ................................................ 5
Troubleshooting ............................................. 5
1

PREPARATIONS

Assemble tools required below.
Yes
Yes
Yes
Yes
Yes
Yes HAND OR POWER
DRILL WITH 3/16 INCH
Yes
DRILL BIT, IF NEEDED
Yes
Yes
No
No
Failure to follow and read all instructions carefully
Yes
before installing or operating this control could cause
Yes
personal injury and/or property damage
No
No
3

REMOVING OLD THERMOSTAT

hole
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.
1. Remove Old Thermostat: 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.
2. Shut off electricity at the main fuse box until installation is
complete. Ensure that electrical power is disconnected.
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.
4. Identify each wire attached to the old thermostat using the
labels enclosed with the new 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.
FLAT BLADE SCREWDRIVER
WIRE CUTTER/STRIPPER
CAUTION
!
PART NO. 37-6615C
Replaces 37-6615B
1028