CAUTION: Low voltage hazard.
Can cause equipment damage.
Disconnect HVAC equipment before beginning installation.
Wire the TrueDRY DR90/DR120 according to the diagram that applies to your desired
Follow this diagram if using the
NOTE: The outer screws on the terminal block
secure the block to the chassis. They are not used
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
DHuM: Compressor and fan operation for
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.).
NOTE: THERMOSTAT MUST BE CONFIGURED TO DRIVE FURNACE FAN
DURING DEHUMIDIFICATION CALL.
TrueDry DR90/DR120 Dehumidification System 69-2690EFS—04
DHUM R FAN C