Carrier PERFORMANCETSERIES EDGER THERMIDISTATT CONTROL TP-PRH-A - Manual (Page 52)

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To Select Dehumidification (programmable − between NORMAL, COOL
TO, and OFF)
Press the soft key below the dehumidify icon button to bring up dehumidify
selections. Dehumidify options are only available when in Cooling mode. When
system is in AUTO mode, dehumidify options are available if the last system
operation was a call for cooling.
To Select Dehumidification (non−programmable − between NORMAL,
COOL TO, and OFF)
Press the features button three times. The first press displays the outdoor air
temperature, the second press displays the humidify options and the third press
will display the current dehumidify selections.
The mode button is used to cycle through the dehumidify selections.
Additional Dehumidify Comments
Dehumidification can be enhanced (with some efficiency loss) by turning blower
off immediately at the end of each cooling cycle (eliminating normal 90 sec
blower off delay). Where maximum humidity removal is desired, this should be
done. Fan coils have the capability of removing this off delay. On FK or FV Fan
Coils, set delay tap to 0/0. On standard fan coils, a jumper can be cut to disable
off delay. Refer to fan coil Installation Instructions for details. If FAN is set for
continuous operation (fan On icon displayed), G output is turned off for 5
minutes at the end of each cooling cycle as long as dehumidify demand exists.
Like humidify, dehumidify actions are initiated when humidity is 1% above
setpoint and are terminated when humidity drops to 1% below setpoint. This
prevents unnecessary toggling of dehumidify actions when humidity is near
setpoint.