Install Instructions

Wiring (continued)
Follow this diagram for ducted
operation with external
ventilation control.
DEHUMIDIFIER
HVAC
THERMOSTAT
GY
W
R
Rc
GYWR C
M36849A
EARD8TZ
R
C
DAMPER
AUX
REMOTE
W8150A
G
R
C
C
W
G
+
+
Gf
DHUM
+
+
FAN
C
FLOAT
IF A FLOAT SWITCH IS NOT USED, THEN JUMPER THE FLOAT TERMINALS.
1
1
HVAC
THERMOSTAT
GYWRRc
M36850A
IF A THERMOSTAT WITH A MECHANICAL SLIDER SWITCH FOR HEAT- OFF-COOL IS USED,
A RELAY MAY BE REQUIRED TO ISOLATE THE G WIRE.
PROGRAM ISU SETTING 60 TO Ø TO FORCE SYSTEM FAN ON WITH DEHUMIDIFICATION CALL.
IF A FLOAT SWITCH IS NOT USED, THEN JUMPER THE FLOAT TERMINALS.
C
R
C
W
Y
G
R
C
SENSOR
SENSOR
SWITCH
W
G
VENT
VENT
DEHUM
DEHUM
HUM
HUM
OUTDOOR
SENSOR
(PROVIDED)
EARD8TZ
TrueIAQ
1
3
3
1
DEHUMIDIFIER
2
2
Gt
+
+
Rf
Gf
DHUM
+
+
R
FAN
C
FLOAT
DR65A3000 Dehumidification System 33-00297EFS—07 9
Follow this diagram if using
DR65A3000 with a powered
dehumidistat such as TrueIAQ
(DG115EZIAQ).