Setting subbase switches – Honeywell CT1801 User Manual
Page 10

10
69-0395—2
Setting Subbase Switches
(if applicable)
The subbase system switch controls
system operation as follows:
HEAT: Heating system is controlled by the
thermostat. Cooling system is off.
COOL: Cooling system is controlled by the
thermostat. Heating system is off.
OFF: Both the heating and cooling systems
are off. If the fan switch is at the AUTO
position, the fan is also off.
AUTO: In a cooling only application, only
cooling operates. In a heating only
application, only heating operates.
The subbase fan switch controls fan
operation as follows:
ON: Fan operates continuously.
AUTO: Fan operates with cooling equipment
as controlled by the thermostat or with the
heating equipment as controlled by the
plenum fan switch. In electric heat, heat
pump, and fan coil systems, the fan is
controlled by the thermostat in heating and
cooling.
To switch positions, use thumb or index
finger to slide lever to desired position. Switch
lever must stop in detent over desired function
indicator mark for proper circuit operation.
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