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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 dehumidifier.
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: 24V hot (output)
FAN: Fan activation only for ventilation
C: 24V common (output)
External 24V devices can be powered from R and C
terminals (20VA max.)
Wiring
Wire the DR65A3000
according to the
diagram that applies
to your desired
operation.
Follow this diagram for
ducted operation with the
onboard dehumidistat.
DR65A3000 Dehumidification System 33-00297EFS—15
NOTE: The outer screws on each
terminal block secure the block to the
chassis. They are not used for wiring.
HVAC
R
C
W
Y
G
R
Rc
W
Y
G
FLOAT FLOAT
THERMOSTAT
1
IF A FLOAT SWITCH IS NOT USED, THEN JUMPER THE FLOAT TERMINALS.
The right hand terminal block in the above
image is used only for interlocking a
DR65A3000 with an equipment fan. These
terminals are needed if:
A: The dehumidifier is mounted on the HVAC
ducting.
B: The dehumidifier control cannot turn on the
blower fan with a call for dehumidification
(H6062, H8908).
The three terminals are:
Gt: Wires to G at thermostat
Rf: Wire to R at HVAC (furnace/air-handler)
Gf: Wire to G at HVAC (furnace/air-handler)
DHUM
R
FAN
C
1
DEHUMIDIFIER
Rf
Gf
Gt
M36847A
7
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