Alternatively, you may want to take a picture of the wires on your old thermostat for reference.
If you have any wire codes that do not match the Hunter labels, you may have a system that
does not conform to industry standard. Call our Technical Support at 1-888-830-1326.
Getting Started
1. Power OFF Your HVAC System Unit
You will need a Phillips head screwdriver to complete this installation.
Read and save these instructions!
If you still need assistance after reading this manual, call our Technical Support at
USA: 1-888-830-1326 Canada: 1-866-268-1936
This thermostat is compatible with most 24V AC/millivolt systems with a maximum of 1 amp including: conventional oil,
gas, electric, hot water systems, single stage, and multi-stage heat pumps. This thermostat will not control line voltage
systems running 110V. Higher amp or line voltage systems will increase the risk of fire.
*This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause
harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
*This device complies with RSS-GEN IC: Operation is subject to the following two conditions: (1) this device may not cause interference, and
(2) this device must accept any interference, including interference that may cause undesired operation of the device.
*Any alteration of this product, either intentional or unintentional, not expressly approved by the manufacturer could result in operation
failure of the device, inability to gain assistance from our technical team, or manufacturer refusing warranty support.
*This Class B digital apparatus complies with Canadian ICES-003.
*Only 1 reversing valve is needed to run a heat pump. If both “O” and “B” are present, “B” may be a common wire.
Expose your existing thermostat wires.
Locate the wire terminals. If the wire terminals
are not visible, they may be connected to the
back of the wall plate.
Remove the existing wall plate and/or thermostat
.
Label your wires.
As you remove each wire one at a time, find
the Hunter label with the corresponding
letter code and attach it to the wire.
DO NOT DISCONNECT THE WIRES
BEFORE LABELING THEM
3. Mounting Your Wall Plate
Insert the wires.
Pass your labeled wires through
the opening of the wall plate
.
Separate the wall plate.
Pull the wall plate straight off
the back of your thermostat.
RH, R
Power wire for heating
Install the top screw.
Partially tighten one
screw into the top hole.
Level the wall plate.
Install the bottom screw.
Fully tighten both screws.
Go to your circuit breaker panel and turn off
power to your compressor and furnace.
Wire Identification
OFF
Turn Power
A
C
C
D
2. Labeling Your Wires
A
B
RC
Power wire for air conditioning
Y, Y1
Controls your compressor outside
G
Controls your fan to your HVAC system
W
Furnace wire
L
Allows the heat pump to tell
the thermostat there may be a
system problem
O
Reversing valve for the heat
pump; allows compressor to
supply air conditioning*
B
Alternate reversing valve
for the heat pump; allows
compressor to supply heat*
W2
- Second stage of heat
E
- Emergency heat
Aux
- Auxiliary wire
Y2
Second stage of cooling
C
Common wire used to
power the thermostat
when available
A
Only used with a 3 wire hot
water heating system
Pre-Installed
Jumper Clip
Tip:
You may need a precision screwdriver (smaller tip) to detach wires from your old thermostat.
Tip:
To prevent your wires from falling back into the wall, wrap them around a pencil.
B
