Honeywell TrueDRY DR90 Installation Manual page 11

Wiring (continued)
Follow this diagram if using TrueDRY
DR90 with a powered dehumidistat such
as TrueIAQ (DG115EZIQ).
Follow this diagram if using TrueDRY
DR90 with a VisionPRO IAQ.
TrueDry DR90 Dehumidification System
2
VISIONPRO IAQ
DHUM
R
FAN
C
TrueDRY
69-2407EFS—01
THERMOSTAT
1
R Rc C
R
C
TrueIAQ
OUTDOOR
SENSOR
SENSOR
SENSOR
(PROVIDED)
68
40 In SWITCH
%
76
55 Out
%
W
:
12 15
PM
G
VENT
VENT
DEHUM
DEHUM
HUM
HUM
IF A THERMOSTAT OTHER THAN A TH5110, TH5220, TH5320, TH6110, TH6220, TH6320, TH8110,
1
TH8320, OR TH8321 IS USED, A RELAY MAY BE REQUIRED TO ISOLATE THE G WIRE.
2 PROGRAM ISU SETTING 60 TO Ø TO FORCE SYSTEM FAN ON WITH DEHUMIDIFICATION CALL.
EQUIPMENT INTERFACE MODULE (EIM)
D-1
R-2
1
C-3
2
3
C
R
RC
RH
H1
U
M2
+
D1
H
M2
V1
N
T2
W Y G HVAC
R
C
W
Y
G
EARD-6
TrueDRY
FAN
FURNACE BOARD
C
CONV. HP
HEAT 1 RELAY
W1 O/B
HEAT 2 RELAY
W2 AUX
HEAT 3 RELAY
W3 AUX2
COOL 1 RELAY
Y Y
COOL 2 RELAY
Y2 Y2
G
FAN RELAY
G G
OR
EARD-6
M29842
M29843
9