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Option 03 -- Fahrenheit/Centigrade
Selections:
F = Fahrenheit — Default is Fahrenheit.
C = Centigrade.
Selects temperature measurement units.
Option 04 -- Fan (G) ON with W o utput
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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