Islandaire 6041210, Installation And Operation Manual

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Wiring
This thermostat is shipped from the factory to operate a conventional heating and cooling
system. This thermostat will also operate a heat pump system. See the “heat pump”
configuration step on page 10 of this manual to configure the thermostat for heat pump
applications.
If you are replacing a thermostat, make note of the terminal connections on the thermostat
being replaced. In some cases the wiring connections will not be color coded. For example,
the red wire may not be connected to the R terminal.
Terminal 1 Heat 1 Cool
Conventional System
1 Heat 1 Cool
Heat Pump System
2 Heat 1 Cool
Heat Pump System
R Transformer power Transformer power Transformer power
C Transformer common Transformer common Transformer common
B/O Energized in heating /
Energized in cooling
Energized in heating /
Energized in cooling
Energized in heating / Ener-
gized in cooling
GL Fan Relay, Low Fan Relay, Low Fan Relay, Low
GH Fan Relay, High Fan Relay, High Fan Relay, High
W Conventional heat N/A Emergency heat
Y Energized in cooling Energized in heat & cool Energized in heat & cool
5
Wiring