All installations and services must be performed by qualified service personnel.
: When testing electrical equipment, always follow standard electrical procedures and precautions.
1.Electrical Branch Supply Circuit
Route all electrical wiring to the left side of the furnace. The power supply circuit to the furnace must be installed and grounded in accordance with the provisions of the National Electrical Code,
2.Connection Of Power Supply Wires
a.Remove the furnace control panel cover.
b.Insert 120 VAC wires through the strain relief bushing (or conduit connection as applicable) on the left side of the furnace junction box.
c.Connect the “Hot” wire to the black wire marked “L1”.
d.Connect the “Neutral” wire to the white wire marked “L2”.
e.Connect the “ground” wire to the ground lug.
3.Connection Of Thermostat Wires
NOTE: Class 1 thermostat wire must be used inside the furnace burner compartment.
a.Insert 24 VAC wires through the plastic grommet on the left side of the furnace casing.
b.Connect the thermostat wires to “R” and “W” for heating.
c.Connect the thermostat wires to the room thermostat.
IMPORTANT: The room thermostat should be installed 4 to 5 feet above the floor on interior wall which is relatively free from direct sources of heat (sunlight or supply airflow) or exposure to cold (drafts from open windows and doors). The nominal anticipator setting is 0.2 amperes (refer to the thermostat literature for additional information).
Electrical Wire Diameter
(AWG)
24
22
20
18
Maximum Recommended
Thermostat Wire Length
(feet)
55
90
140
225
22
