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®
Congratulations!
Your new Hunter thermostat will provide years of reliable service. By saving energy, your thermo-
stat will pay for itself during its first season of use. Thank you for buying a Hunter product!
Please read this manual for complete instructions on installing and operating your thermostat. If
you require further assistance, call Hunter Technical Support at 1-866-268-1936 from 8am to 5pm
Central Time.
Before starting, remove the mylar label from the LCD display.
IMPORTANT INFORMATION
1. This thermostat is designed to work on the following systems:
Gas - Standing Pilot
Single-Stage Heat Pumps - with no auxiliary heat
Gas - Electronic Ignition
Electric Furnace
Gas - Fired Boilers
Electric Air Conditioning
Gas - Milivolt Systems
Oil - Fired Boilers
This thermostat will NOT control single-stage or multi-stage
Oil - Fired Furnace
heat pumps or 110/220 V baseboard electric heating systems.
2. Temperature Range
This thermostat can be programmed between 7˚C and 35˚C (45˚F and 95˚F). It will display
room temperatures from 0˚C and 37˚C (30˚F to 99˚F). "HI" will be displayed if the temperature
is higher than 37˚C (99˚F), and "LO" will be displayed if the temperature is lower than 0˚C (30˚F).
This thermostat will automatically cut-off in Heat mode if the temperature rises above 35˚C
(95˚F), and automatically cut-off in Cool mode if the temperature drops below 4˚C (40˚F).
3. Compressor Protection
This thermostat provides a 3.5 minute delay after shutting off the cooling system before it can
be restarted. This feature will prevent damage to your compressor caused by rapid cycling. It
does not prevent a rapid compressor restart due to short power outages.
4. Battery Warning
Two fresh AA alkaline batteries should provide well over one year of service. However, when
the batteries become drained, the Low Battery Indicator will flash on the display. When this
message occurs, install new alkaline batteries. You have approximately 1 minute to change
the batteries and keep thermostat's clock and program settings. Once the batteries have
become too low to ensure proper operation, your system will be turned Off, and the display
will be cleared except for flashing Low Battery Indicator on the LCD display.
CAUTION: When only the battery icon flashes on the display, the thermo-
stat is shut down, and your system will no longer operate. In this condi-
tion, there is no temperature control of your dwelling.
NOTE: If you plan to be away from the premises over 30 days, we recommend that
you replace the old batteries with new alkaline batteries prior to leaving.
FEATURES
Front Door: Covers keys when not used for neat
appearance. Open by lifting from the bottom
LCD Display: Shows
Time, Day, Temperature,
Program Number, and
other feature information
as required.
Low Battery Indicator:
Flashes when batteries
need to be replaced.
System Switch:
Selector switch for
M
AM
Heat, Cool, and Off
Fan Switch: Fan
switch for Automatic
system
or Continuous fan
heat
off
cool
operation.
fan
auto
Battery Compartment:
on
Front access allows
easy insertion of two
AA 1.5V batteries.
Reset: Press with a paper clip to reset the
thermostat and return to power-up settings.
Day / Time Key: Used for entering the Clock
setting mode. Use with the Up and Down keys
to set the time and day.
Up and Down Keys: Keys for
changing the Temperature
setting. Also used for increasing
and decreasing selections in the
Time, Program, and Span
functions.
Program Key: Used for entering
and modifying Programs. Use
with the Up and Down keys to
set times and temperatures.
Press when in Clock setting
4
mode to select between 12 and
TEMP
24 hour clock modes.
program
Filter Key: Resets filter change
day/time
counter to zero.
filter
reset
hold
Hold / Return Key: Used for
/return
setting a permanent (vacation)
hold, and for returning to the
normal display from Day & Time
setting, Programming, or Span
setting modes.
Battery Release Lever:
Push to pop batteries loose.
ENERGY STAR
®
PARTNER
®
As an ENERGY STAR
Partner, Hunter Fan Co. has determined that this programmable thermostat
®
meets the ENERGY STAR
guidelines for energy efficiency.
INSTALLATION
What You Need
This thermostat includes two #8 slotted screws and two wall anchors for mounting. To install
your thermostat, you should have the following tools and materials.
Slotted Screwdriver(s)
Small Philips screwdriver
Hammer
Electric drill and 3/16" bit
Two 1.5 V (AA) size alkaline batteries
Remove Old Thermostat
CAUTION: Do not remove any wiring from existing thermostat before reading the in-
structions carefully. Wires must be labeled prior to removal.
IMPORTANT! Turn off the power to the furnace at the main power panel or at the furnace.
Remove existing thermostat cover and thermostat. See Figure 1. Some thermostats will have
screws or other locking devices that must first be removed. Once the wall mounting plate is
exposed, look for wires.
If wires are not visible, they may be connected to the back of the wallplate. Again, look for
screws, tabs, etc. Some models have doors that open to expose wires and mounting screws.
See Figure 1.
Typical Home Thermostats
Wall Mounting Plate
Wall Mounting Plate
Wire Labeling
Each wire coming from the wall to the existing thermostat is connected to a terminal point
on that thermostat. Each of these terminal points is usually marked with a code letter as
shown in Table A below.
Note that this thermostat has multiple function terminals that allow Single-Stage Heat
Pump capability. Standard systems use: Rh, Rc, G, W. [Single-Stage Heat Pumps use: Rh, Y1,
G, and O or B.] Table A below shows the multiple functions of the terminals. Use the termi-
nals that match your system.
The number of wires in your system can be as few as two (for heat only systems), as many
as eight, or any number in between. If you follow the labeling procedures correctly, you do
not have to be concerned about how many wires there are.
There is often no terminal marking on the existing thermostat of
two wire, heat only systems. Just connect either of the wires to
the RH terminal, then connect the other wire to the W terminal
to complete the circuit.
IMPORTANT! BEFORE DISCONNECTING ANY WIRES, APPLY THE
SELF-ADHESIVE LABELS PROVIDED TO THE WIRE AS SHOWN IN
TABLE A BELOW. (For example, attach the label marked W to the
wire that goes to the W or H terminal on your existing thermo-
stat.) IGNORE THE COLOR OF THE WIRES since these do not always comply with the standard.
Thermostat
Cover
Thermostat
Cover
Figure 1
G Y
W
(Continued)
2
RH
RC
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