VISIONPRO
®
IAQ TOTAL HOME COMFORT SYSTEM
7 68-0287—1
Fig. 12. Typical hookup of conventional system with up to
three-stage heat and two-stage cool with one transformer
(3H/2C, 2H/2C, 2H/1C, 1H/2C, 1H/1C conventional).
Fig. 13. Typical hookup of heat pump system
(up to 4H/2C heat pump).
Fig. 14. Typical hookup of non-powered humidifier.
Fig. 15. Typical hookup of powered humidifier.
Fig. 16. Typical hookup of variable speed blower for
dehumidification in low speed (contacts normally closed).
NOTE: Connect DHM2 to low-speed fan terminal on air han-
dler for dehumidification with air conditioner and a
low-speed fan.
Fig. 17. Typical hookup of powered whole house
dehumidifier (contacts normally open).
M23685
KEY
= NORMALLY OPEN, DRY CONTACTS
= NORMALLY CLOSED, DRY CONTACTS
M23487
FACTORY INSTALLED
JUMPER BETWEEN R,
RC AND RH
1
2
3
C
R
RC
RH
COMMUNICATION
TERMINALS
COMMUNICATION LED
W1
W2
W3
Y
Y2
G
24 VAC
O/B
AUX
AUX2
Y
Y2
G
1
2
3
CONV. HP
HEAT 1 RELAY
HEAT 2 RELAY
HEAT 3 RELAY
COOL 1 RELAY
COOL 2 RELAY
FAN RELAY
WIRE TO TERMINALS ON THERMOSTAT.
1
1
M23488
FACTORY INSTALLED
JUMPER BETWEEN R,
RC AND RH
1
2
3
C
R
RC
RH
COMMUNICATION
TERMINALS
COMMUNICATION LED
W1
W2
W3
Y
Y2
G
24 VAC
O/B
AUX
AUX2
Y
Y2
G
1
2
3
CONV. HP
CHANGEOVER
AUX 1 (HEAT 3)
AUX 2 (HEAT 4)
COMP 1
COMP 2
FAN RELAY
WIRE TO TERMINALS ON THERMOSTAT.
1
1
M23489
FIELD INSTALLED
JUMPER BETWEEN
R AND HUM 1
1
2
3
C
R
RC
RH
24 VAC
H1
U
M2
D1
H
M2
V1
N
T2
OR
NON-POWERED
HUMIDIFIER
M23490
1
2
3
C
R
RC
RH
24 VAC
H1
U
M2
D1
H
M2
V1
N
T2
OR
POWERED
HUMIDIFIER
M23491
FIELD INSTALLED
JUMPER BETWEEN
R AND DHM 1
1
2
3
C
R
RC
RH
24 VAC
H1
U
M2
D1
H
M2
V1
N
T2
OR
LOW SPEED
FAN
M23492
1
2
3
C
R
RC
RH
24 VAC
H1
U
M2
D1
H
M2
V1
N
T2
OR
POWERED
DEHUMIDIFIER
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