Hunter 44668 Manual page 2

Thermostat

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How to unistall old tHermostat and install new Hunter tHermostat

Note: Most thermostats are low voltage, and present

no threat to you during the uninstallation or installation

process. As a precaution though, turn off the power to

your Furnace by using the switch on the side or your

breaker box.

RemoviNg youR old TheRmosTaT

1. Remove the cover from your old thermostat and set

it aside.

After removing the cover, you will see a series of wires

and terminal blocks. They may not necessarily look

like the ones in the image, but they should be similar.

These wires will have to be removed from the terminal

blocks to remove the thermostat.

Note: It is important to remember that these wires

are color coded and have terminal designations on

the thermostat. These two things are not necessarily

related. When removing the wires, use the terminal

designation, not wire color to match them with the

provided labels.

2.Remove the wires one at a time and label them

with the labels provided with the Accessory Kit. For

example: When removing the "G" terminal, label it

with the "G" label.

Note: When labeling the "R" or "RH" terminal, be sure

to use the "RC" label, not the RH label. You will only

use the "RH" label if you have a "5 wire" system.

Consult your wiring diagram for "5 wire" systems.

3. Group the wires together in order to remove the

sub-base of the exhisting thermostat.

4. Loosen and remove the screws from the sub-base

to remove it from the wall.

5. Not all thermostats are equipped with a mounting

base like the first picture on the next page. If yours

does, remove it by loosening the screws and

detaching it from the wall.

44668 tHermostat

43091-01 • 03/20/2009

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