Terminal Description; Wiring - Honeywell TrueDRY DR90 Installation Manual

Terminal Description

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

Wiring

Wire the TrueDRY DR90 according to the diagram that applies to your desired
operation.
Follow this diagram if using the
Prestige™ thermostat.
TrueDry DR90 Dehumidification System
R
W
W2
Y
Y2
G
K
NOTE: THERMOSTAT MUST BE CONFIGURED TO DRIVE FURNACE FAN
DURING DEHUMIDIFICATION CALL.
69-2407EFS—01
*
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 four terminals for the terminal block (reading
from left to right in the photo) are:
DHUM: Compressor and fan operation for
dehumidification
R: DR90 24V output
FAN: Fan activation only for ventilation
C: DR90 24V output
External 24V devices can be powered from R and
C terminals (20VA max.).
HVAC
C W Y G
C
Rc
R
H
H
DH
THERMOSTAT
DH
DHUM R FAN C
TrueDRY
M29839
7