Bryant T2-PAC Option 03 Fahrenheit/Centigrade, Option 04 Fan G on with W output, Option 07 Zoning

Option 03 - Fahrenheit/Centigrade

Selections:

F = Fahrenheit — Default is Fahrenheit.

C = Centigrade.

Selects temperature measurement units.

Option 04 - Fan (G) ON with W output

Selections:

OF = G not energized with W — This is default. ON = G energized with W.

This selection determines whether the fan (G) is to be ON or OFF when the W (furnace or strip heat) is ON. Furnaces and fan coils which manage their own blowers do not require a separate G signal. Some auxiliary heaters require a separate G signal to operate the blower when W is applied.

Option 07 - Zoning

Selections:

OF = non-zoned system — This is default. ON = zoned system.

ON disables thermostat’s internal timers which are not needed with zoning system controls. Must be set to OF for non-zoned systems.

Option 10 - Reversing valve

This selection is only available on heat pump systems. “O” terminal can be configured to be energized in either heating mode or in cooling mode, depending on heat pump operation. “O” is used to describe a heat pump system that energizes its reversing valve in cooling. “B” is used to describe a heat pump system that energizes its reversing valve in heating.

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