Terminal Description
CAUTION: Low voltage hazard.
Can cause equipment damage.
Disconnect HVAC equipment before beginning installation.
Two wiring terminal blocks are located on the exhaust end of the TrueDRY unit.
The six terminals for the left hand terminal block are:
FLOAT (2): External low-voltage water sensor or float
switch
DHUM: Compressor and fan operation for
dehumidification
R: DR65 24V output
FAN: Fan activation only for ventilation
C: DR65 24V output
External 24V devices can be powered from R and C
terminals (20VA max.)
Wiring
Wire the TrueDRY
DR65 according to
the diagram that
applies to your
desired operation.
Follow this diagram for
ducted operation with the
onboard dehumidistat.
TrueDry DR65 Dehumidification System
HVAC
R
C
W
Y
G
R
Rc
W
Y
G
THERMOSTAT
69-2089EFS—12
*
NOTE: The outer screws on each
terminal block secure the block to the
chassis. They are not used for wiring.
The right hand terminal block in the above
figure is used only for interlocking a TrueDry
DR65 with an equipment fan. The three
terminals are:
Gt:
Fan operation from thermostat
Rf:
24V from equipment fan
Gf:
Fan operation from equipment fan
FLOAT FLOAT
DHUM
FAN
R
Rf
C
Gt
Gf
TrueDRY
M33153
7