Hunter Fan 44360 What You Need, Remove Old Thermostat, Wire Labeling, ■ Hammer, Thermostat, Thermostat, Wall Mounting Plate, Wall Mounting Plate, two wire, heat only, Figure

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INSTALLATION	8
What You Need
This thermostat includes two #8 screws and two wall	■ Phillips and Slotted Screwdrivers
anchors for mounting. To install your thermostat, you	■ Hammer
should have the following tools and materials.	■ 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 instructions 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. See Figure 1. Some thermostats will have screws or other lock- ing devices that must first be removed. Once 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

Figure 1

Wall Mounting Plate Thermostat Cover

Wall Mounting Plate Thermostat Cover

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Wire Labeling 9

■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 on the next page.

■Note that this thermostat has multiple function terminals that allow Single-Stage Heat Pump ca- pability. 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 terminals 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 label- ing procedures correctly, you do not have to be concerned about how many wires there are.

■There is often no ter-

minal marking on the	G	Y
existing thermostat of
	W	RH
two wire, heat only
		RC
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 PRO- VIDED TO THE WIRE AS SHOWN IN TABLE A ON THE NEXT PAGE. (For example, attach the label marked W to the wire that goes to the W or H terminal on your existing thermostat.) IGNORE THE COLOR OF THE WIRES since these do not always comply with the standard.

■After labeling wires, disconnect them from the existing thermostat terminals.

■Remove existing wallplate. To make sure wires do not fall back into wall opening, you may want to tape them to the wall.

■If hole in wall is larger than necessary for wires, seal this hole with insulating material so that no hot or cold air can enter the back of the thermo- stat from the wall. This air could cause a false thermostat reading.

(continued)