White Rodgers 1F85-275 User Manual

Page of 12
1F85-275
1F85-275
1F85-275
1F85-275
1F85-275
Heating & Air Conditioning
5-1-1 Programmable/Non-programmable, Auto
Changeover, Multi-Stage/Heat Pump Thermostat
PART NO. 37-6488C
PART NO. 37-6488C
PART NO. 37-6488C
PART NO. 37-6488C
PART NO. 37-6488C
Replaces 37-6488B
0838
INSTALLATION INSTRUCTIONS
INSTALLATION INSTRUCTIONS
INSTALLATION INSTRUCTIONS
INSTALLATION INSTRUCTIONS
INSTALLATION INSTRUCTIONS
Oper
Oper
Oper
Oper
Opera
a
a
a
ator
tor
tor
tor
tor:::::  Sa
  Sa
  Sa
  Sa
  Sav
v
v
v
ve these instr
e these instr
e these instr
e these instr
e these instructions f
uctions f
uctions f
uctions f
uctions for futur
or futur
or futur
or futur
or future use!
e use!
e use!
e use!
e use!
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BE-
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BE-
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BE-
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BE-
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BE-
FORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PER-
FORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PER-
FORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PER-
FORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PER-
FORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PER-
SONAL INJURY AND/OR PROPERTY DAMAGE.
SONAL INJURY AND/OR PROPERTY DAMAGE.
SONAL INJURY AND/OR PROPERTY DAMAGE.
SONAL INJURY AND/OR PROPERTY DAMAGE.
SONAL INJURY AND/OR PROPERTY DAMAGE.
PREP
PREP
PREP
PREP
PREPARA
ARA
ARA
ARA
ARATIONS
TIONS
TIONS
TIONS
TIONS
REMO
REMO
REMO
REMO
REMOVING OLD 
VING OLD 
VING OLD 
VING OLD 
VING OLD THERMOST
THERMOST
THERMOST
THERMOST
THERMOSTA
A
A
A
AT
T
T
T
T
Description
Description
Description
Description
Description
1F85-275
1F85-275
1F85-275
1F85-275
1F85-275
Heat Pump (No Aux. or Emergency Heat)
Yes
Heat Pump (with Aux. or Emergency Heat)
Yes
Standard Heat & Cooling Systems
Yes
Two Stage Heat & Two Stage Cool
Yes
Standard Heat Only Systems
Yes
Millivolt Heat Only Systems – Floor or Wall Furnaces
Yes
Standard Central Air Conditioning
Yes
Gas or Oil Heat
Yes
Electric Furnace
Yes
Hydronic (Hot Water) Zone Heat – 2 Wires
Yes
Hydronic (Hot Water) Zone Heat – 3 Wires
No
Before removing wires from old thermostat's switching sub-
base,  label each wire
label each wire
label each wire
label each wire
label each wire with the terminal designation it was
removed from.
1. Shut off electricity at the main fuse box until installation is
complete. Ensure that electrical power is disconnected.
2. Remove Old Thermostat
Remove Old Thermostat
Remove Old Thermostat
Remove Old Thermostat
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.
3. Remove the front cover of the old thermostat. With
With
With
With
With
wires
wires
wires
wires
wires still attached
still attached
still attached
still attached
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.
5. Disconnect the wires from the old thermostat one at a
time. DO NOT LET WIRES FALL BACK INTO THE
DO NOT LET WIRES FALL BACK INTO THE
DO NOT LET WIRES FALL BACK INTO THE
DO NOT LET WIRES FALL BACK INTO THE
DO NOT LET WIRES FALL BACK INTO THE
WALL
WALL
WALL
WALL
WALL.
6. Install new thermostat using the following procedures.
Assemble tools required as shown below.
YOUR THERMOSTAT REPLACES
YOUR THERMOSTAT REPLACES
YOUR THERMOSTAT REPLACES
YOUR THERMOSTAT REPLACES
YOUR THERMOSTAT REPLACES
To prevent electrical shock and/or equipment damage,
To prevent electrical shock and/or equipment damage,
To prevent electrical shock and/or equipment damage,
To prevent electrical shock and/or equipment damage,
To prevent electrical shock and/or equipment damage,
disconnect electric power to system at main fuse or
disconnect electric power to system at main fuse or
disconnect electric power to system at main fuse or
disconnect electric power to system at main fuse or
disconnect electric power to system at main fuse or
circuit breaker box until installation is complete.
circuit breaker box until installation is complete.
circuit breaker box until installation is complete.
circuit breaker box until installation is complete.
circuit breaker box until installation is complete.
Figure 1 – Thermostat base
Figure 1 – Thermostat base
Figure 1 – Thermostat base
Figure 1 – Thermostat base
Figure 1 – Thermostat base
ATTENTION!
ATTENTION!
ATTENTION!
ATTENTION!
ATTENTION!  This product does not contain mercury. How-
ever, this product may replace a unit which contains mercury.
Do not open mercury cells. If a cell becomes damaged, do not
not
not
not
not
touch any spilled mercury. Wearing non-absorbent gloves,
clean 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-rodgers.com for loca-
tion to send the product containing mercury.
HAND OR POWER 
DRILL WITH 3/16 INCH 
DRILL BIT, IF NEEDED
FLAT BLADE SCREWDRIVER
WIRE CUTTER/STRIPPER
CAUTION
!
Mounting
Hole
Elec-Gas
Switch
Mounting
Hole
AUTO
ON
ELEC.
GAS
C
O
B
L
W2 G
Y2
R
E/W1
Y1
White-Rodgers is a division
of Emerson Electric Co.
www.white-rodgers.com