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1. Run a cable with the correct number of wires
(see table) from the thermostat to the HVAC equipment.
2. Strip 1/4" of insulation from the end of the wires to
be connected to the thermostat.
3. Strip no more insulation than is required to make a
sound electrical connection at the HVAC equipment.
4. Wire the thermostat to the HVAC equipment according
to the wiring schematic appropriate for your HVAC
equipment.
(5) WIRE THE THERMOSTAT TO THE HVAC EQUIPMENT
WARNING
120 volts may cause serious injury from electrical shock. Disconnect electrical power to the furnace
and air conditioner before starting installation. This thermostat is not a 120 volt (line voltage) device.
Application # Wires Diagram (Page)
Single-Stage Furnace/AC 5 1 (9)
Two-Stage Furnace/AC 7 2 (10)
Two-Stage Roof Top Unit 7 3 (11)
Boiler w/AC (2-transformer) 6 4 (12)
Radiant 1st Stage Heat, 6 5 (13)
Furnace 2nd Stage and AC
Single-Stage Heat Pump 6 6 (14)
Two-Stage Heat Pump 8 7 (15)