Hunter 40170 User manual

Electronic/Mechanical
ermostat
Model 40170
installation and
operation manual
42998-01 01-19-2007

2

3
Table of Contents
Important Information.................................................. 5
Tools ............................................................................ 6
Uninstalling the Existing Unit ...................................... 9
Installing the Thermostat ........................................... 13
installing the wall plate .................................... 15
connecting the wires ........................................ 17
attaching the thermostat .................................. 19
Operation ................................................................... 23
Indicators & Adjustments ........................................... 25
Troubleshooting ......................................................... 28
Wiring Diagrams ........................................................ 30

4
Congratulations!
Thank you for choosing a Hunter thermostat. Your new
Hunter thermostat will provide years of reliable service
and year-round energy savings.
Please read this manual before beginning installation
and save this booklet for complete operation instructions.
Electronic/Mechanical
Thermostat
Model 40170

5
This thermostat is designed to work on the following
heating and cooling systems:
Gas – Standing Pilot
Gas – Electronic Ignition
Gas – Fired Boilers
Gas – Millivolt Systems
Oil – Fired Boilers
Oil – Fired Furnace
Electric Furnace
Electric Air Conditioning
Single-stage Heat Pump Systems
This thermostat is not designed for Multi-stage heat pump
systems or 110/220 V baseboard heating systems.
If you are unsure what kind of heating and cooling system
you have, please contact a qualified HVAC Technician for
assistance.
IMPORTANT INFORMATION

6
This thermostat includes two #8 slotted screws and two
wall anchors for mounting.
To install your new thermostat, you will need the
following supplies:
Flat-head screwdriver
.............................................................................................
Small Phillips-head screwdriver
.............................................................................................
Hammer
.............................................................................................
Electric drill and 3/16” bit
.............................................................................................
Two fresh 1.5 Volt (AA) size alkaline batteries
.............................................................................................
TOOLS

7
NOTICE! Do not disconnect the wires
from the existing thermostat before
reading these instructions. The wires
must be labeled prior to removal to
ensure proper reconnection.

8
UNINSTALLING THE EXISTING UNIT
Y
RC
G
W
Y
RC
G
W

9
1. Turn the system power OFF from the existing
thermostat. Turn the power to the HVAC system OFF
at the main power panel or at the furnace.
2. Remove the existing thermostat cover to access the
wires from the wall.
(Some thermostats may have multiple covers, screws or other
locking devices that must be removed or disengaged.)
3. Locate, but do not disconnect the wires.
(If wires are not visible, they may be connected to the back of the
wall plate. Some models may have doors that open to expose the
wires and mounting screws.)
UNINSTALLING THE EXISTING UNIT

10
UNINSTALLING THE EXISTING UNIT, CONT.
if your existing
thermostat is marked...
label the wire
with this sticker:
G / F
G
G
W / H
W
W
Y / C* / M
Y
Y
RC / VC
RC
RC
RH / R / VR / 4
RH
RH
24 Volt
24 Volt cool
air conditioning
compressor
heating
fan
O
O
O
reversing valve
cool
B
B
B
reversing valve
heat