Mounting And Wiring - White Rodgers 1F85-275 Installation Instructions Manual

MOUNTING AND WIRING

MOUNTING AND WIRING MOUNTING AND WIRING MOUNTING AND WIRING MOUNTING AND WIRING
WARNING
!
Do not use on circuits exceeding specified voltage. Do not use on circuits exceeding specified voltage. Do not use on circuits exceeding specified voltage.
Do not use on circuits exceeding specified voltage. Do not use on circuits exceeding specified voltage.
Higher voltage will damage control and could cause Higher voltage will damage control and could cause Higher voltage will damage control and could cause Higher voltage will damage control and could cause Higher voltage will damage control and could cause
shock or fire hazard. shock or fire hazard. shock or fire hazard.
shock or fire hazard. shock or fire hazard.
Do not short out terminals on gas valve or primary Do not short out terminals on gas valve or primary Do not short out terminals on gas valve or primary Do not short out terminals on gas valve or primary Do not short out terminals on gas valve or primary
control to test. Short or incorrect wiring will damage control to test. Short or incorrect wiring will damage control to test. Short or incorrect wiring will damage control to test. Short or incorrect wiring will damage control to test. Short or incorrect wiring will damage
thermostat and could cause personal injury and/or thermostat and could cause personal injury and/or thermostat and could cause personal injury and/or
thermostat and could cause personal injury and/or thermostat and could cause personal injury and/or
property damage. property damage. property damage. property damage. property damage.
Thermostat installation and all components of the
system shall conform to Class II circuits per the NEC
code.
Electric/Gas Switch (Fan Option) Electric/Gas Switch (Fan Option) Electric/Gas Switch (Fan Option) Electric/Gas Switch (Fan Option) Electric/Gas Switch (Fan Option)
The ELEC/GAS switch is factory set to the ELEC position. In
this position, the thermostat will power the circulator fan on a
call for heat. Electric heat systems require the switch to be in the
ELEC position.
If your system does not require that the thermostat power the
circulator fan, this switch should be set to the GAS position.
Typically, gas and oil heating systems do not require the
thermostat to power the circulator fan during a call for heat. If
your heat is gas or oil, the switch should be set to the GAS
position.
When the thermostat is configured for Heat Pump, the thermo-
stat will always power the circulator fan on a call for heat in the
HEAT mode. The ELEC/GAS switch must be set to match the
type of Auxiliary heat your system uses for proper operation in
the EMERgency mode.
All wiring diagrams are for typical systems only. Refer to
equipment manufacturers' instructions for specific system wir-
ing information.
O B
Reversing Valve
Reversing Valve
Energized in Cool Energized in Heat,
Mode Off, Emergency
Mode
Figure 2. Typical wiring diagram for single transformer heat pump systems
O
CUT AND
TAPE OFF!
Reversing
Valve
HOT
Energized in
120 VAC 24 VAC
Cool Mode
NEUTRAL
Figure 3. Typical wiring diagram for two transformer heat pump systems with NO safety circuits
2
Y2
Y1
2nd Stage
Compressor
Compressor
Contactor
If safety circuits are in only one of the systems, remove
the transformer of the system with NO safety circuits.
B Y2
Y1
Reversing
2nd Stage
Valve
Compressor
Energized in
Heat, Off,
Compressor
Emergency
Contactor
Mode
!
Take care when securing and routing wires so they do Take care when securing and routing wires so they do Take care when securing and routing wires so they do
Take care when securing and routing wires so they do Take care when securing and routing wires so they do
not short to adjacent terminals or rear of thermostat. not short to adjacent terminals or rear of thermostat. not short to adjacent terminals or rear of thermostat. not short to adjacent terminals or rear of thermostat. not short to adjacent terminals or rear of thermostat.
Personal injury and/or property damage may occur. Personal injury and/or property damage may occur. Personal injury and/or property damage may occur.
Personal injury and/or property damage may occur. Personal injury and/or property damage may occur.
Attach Thermostat Base to Wall Attach Thermostat Base to Wall
Attach Thermostat Base to Wall Attach Thermostat Base to Wall Attach Thermostat Base to Wall
1. Remove the packing material from the thermostat. Gently
pull the cover straight off the base. Forcing or prying on
the thermostat will cause damage to the unit.
2. Connect wires beneath terminal screws on base using
appropriate wiring schematic (see figs. 2 through 4).
3. Place base over hole in wall and mark mounting hole
locations on wall using base as a template.
4. Move base out of the way. Drill mounting holes.
5. Fasten base loosely to wall, as shown in fig. 1, using two
mounting screws. Place a level against bottom of base,
adjust until level, and then tighten screws. (Leveling is for
appearance only and will not affect thermostat operation.)
If you are using existing mounting holes, or if holes drilled
are too large and do not allow you to tighten base snugly,
use plastic screw anchors to secure subbase.
6. Push excess wire into wall and plug hole with a fire-
resistant material (such as fiberglass insulation) to
prevent drafts from affecting thermostat operation.
Battery Location Battery Location
Battery Location Battery Location Battery Location
2 "AA" alkaline batteries are included in the thermostat at the
factory with a battery tag to prevent power drainage. You
must remove the battery tag to engage the batteries.
If BATT is displayed, the batteries are low and should be
replaced with fresh "AA" Energizer® alkaline batteries. To
replace batteries, set system to OFF, install the batteries
along the top of the base (see Fig. 1). The batteries must be
installed with the positive (+) end to the left.
E/W1
G W2
Fan Emergency
Aux
or 1st Aux.
Relay
Relay
Stage
(Stage 2)
Relay
NOTE
E/W1
G W2
Fan
Emergency
Relay
or 1st Aux.
Aux
Stage
Relay
Relay
(Stage 2)
TWO COMMONS MUST
BE JUMPERED TOGETHER!
CAUTION
THERMOSTAT
L
C R
SYSTEM
MONITOR
SWITCH
24 VAC
TRANSFORMER
(Class II Current Limited)
THERMOSTAT
C L R
SYSTEM
SYSTEM
Limit or
MONITOR
Safety
SWITCH
Switches
24 VAC
TRANSFORMER
(Class II Current Limited)
SYSTEM
Hot
120 VAC
Neutral
Hot
120 VAC
Neutral