Daikin DV PTC 14 Series Installation Instructions Manual page 14

To install/connect a dehumidistat:
1. Turn OFF power to air handler.
2. Secure the dehumidistat neutral wire (typically the white
lead) to the screw terminal marked "DEHUM" on the air
handler's integrated control module.
3. Secure the dehumidistat hot wire (typically the black lead)
to the screw terminal marked "R" on the air handler's
integrated control module.
4. Secure the dehumidistat ground wire (typically the green
lead) to the ground screw on the air handler. NOTE:
Ground wire may not be present on all dehumidistats.
5. To enable the dehumidification function, move the
dehumidification dip switch (S7) from OFF to ON. See
following figure.
S5 S6 S7 S8
ON
OFF
Dip Switches - Dehumidificaiton Enable
6. Turn ON power to air handler.
Auxiliary Alarm Switch
The control is equipped with two Auxiliary Alarm terminals labeled
CAS which can be utilized with communicating mode setups
(typically used for condensate switch wiring).
CAS
Legacy mode use
In a legacy system (Non-communicating), this feature is not
operational. Any auxiliary alarm switch must be used to interrupt
the Y1 signal either to the indoor or outdoor unit.
Communication mode use
This feature can be activated or deactivated through the
thermostat user menus. An auxiliary alarm switch must be
normally closed and open when the base pan's water level in the
evaporator coil reaches a particular level. The control will respond
by turning off the outdoor compressor and display the proper fault
codes. If the switch is detected closed for 30 seconds, normal
operation resumes and the error message will be removed.
Move to the
ON position
to enable
dehumidification
Figure 18
SWITCH
Figure 19
DV**PTC Motor Orientation
If the unit is in the upflow position, there is no need to rotate
the motor. If the unit is in the downflow position, loosen motor
mount and rotate motor as shown in the DV**PTC Motor
Orientation figure below. Be sure motor is oriented with the female
connections on the casing down. If the motor is not oriented with
the connections down, water could collect in the motor and may
cause premature failure.
FRONT VIEW
FEMALE CONNECTIONS
DV**PTC Motor Orientation
14
SIDE VIEW
Figure 20