Terminal Description; Wiring - Honeywell Home DR90A3000 Guide D'installation

Terminal Description

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

Wiring

Wire the DR90A3000/DR120A3000 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 dehumidifier 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.).
U3
U3
U2
EIM
U2
1 2
U1
U1
FLOAT
3
DEHUMIDIFIER
1 IN THIS DIAGRAM, U1 CONTROLS THE DR90/DR120 FOR DEHUM AND
U2 CONTROLS THE DR90/DR120 FOR VENTILATION.
2 INSTALL A JUMPER ON EIM AS SHOWN ONLY WHEN USING THE
DR90/DR120 FOR VENTILATION IN ADDITION TO DEHUMIDIFICATION.
3 IF A FLOAT SWITCH IS NOT USED, THEN JUMPER THE FLOAT TERMINALS.
DR90A3000/DR120A3000 Dehumidification System 33-00298EFS—09
DHUM R FAN C
M38418A