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Terminal Description; Wiring - Honeywell TrueDRY DR90 Professional Installation Manual

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Terminal Description

CAUTION: Low voltage hazard.
Can cause equipment damage.
Disconnect HVAC equipment before beginning installation.

Wiring

Wire the TrueDRY DR90/DR120 according to the diagram that applies to your desired
operation.
Follow this diagram if using the
Prestige™ thermostat.
8
*
NOTE: The outer screws on the terminal block
secure the block to the chassis. They are not used
for wiring.
A wiring terminal block is located on the side panel
of the TrueDRY unit.
The six terminals for the terminal block (reading from
left to right in the photo) are:
FLOAT: External low voltage float switch or water
sensor (two terminals). use normally
closed switch.
DHuM: Compressor and fan operation for
dehumidification
R: DR90/DR120 24V output
FAN: Fan activation only for ventilation
C: DR90/DR120 24V output
External 24V devices can be powered from R and C
terminals (20VA max.).
HVAC
R
C
W
Y
G
W
W2
Y
Y2
G
K
THERMOSTAT
FLOAT
NOTE: THERMOSTAT MUST BE CONFIGURED TO DRIVE FURNACE FAN
DURING DEHUMIDIFICATION CALL.
TrueDry DR90/DR120 Dehumidification System 69-2690EFS—04
C
Rc
R
H
H
DH
DH
TrueDRY
DHUM R FAN C
M29839A

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