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Les langues disponibles
SAIL
SWITCH
2
TRANSFORMER
L2
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
2
24V WIRING.
Fig. 15. Wiring H8908 in line with
sail switch and humidifier.
TH9421 VISION PRO
THERMOSTAT
24 VOLT
H8908B
TRANSFORMER
30
40
20
50
10
60
OFF
ON
COM N.O. N.C.
S688
SAIL SWITCH
Fig. 17. Wiring H8908 with VisionPRO® IAQ on typical 2-stage furnace.
VISIONPRO ® THERMOSTAT
Y2
L
A
W2
S1
S2
HEATING
RELAY OR
VALVE COIL
COOLING
FAN
CONTACTOR
RELAY
COIL
COIL
PROVIDE OVERLOAD PROTECTION
1
AND DISCONNECT MEANS AS REQUIRED.
Fig. 18. Wiring H8908 with VisionPRO®
Thermostat for dehumidification.
H8908
30
40
20
50
10
60
OFF
ON
1
L1
(HOT)
HUMIDIFIER
M24730
1
2
3
L2
SYSTEM
TRANSFORMER
L1
C
L2
R
L1
HE225/HE265
HUMIDIFIER
RC
R
W
Y
G
C
H8908D
30
40
20
50
10
60
OFF
ON
1
M24725
H8908A/B HUMIDISTAT H8908C/D DEHUMIDISTAT
H8908
30
40
20
50
10
60
OFF
ON
HUMIDISTAT
TERMINALS
1
24V WIRING.
NOTE:
FOLLOW THE INSTALLATION INSTRUCTIONS
INCLUDED WITH THE STEAM HUMIDIFIER
TO WIRE THE SYSTEM FAN.
Fig. 16. Wiring H8908 with steam humidifiers.
EQUIPMENT INTERFACE MODULE
1
2
3
C
C
24 VAC
R
RC
R
RH
H1
U
M2
D1
H
OR
M2
V1
N
T2
H8908D
30
40
20
50
10
60
OFF
ON
Fig. 19. Typical wiring diagram for HR150,
HR200, ER150 and ER200 Ventilator
or DH90 Dehumidifier applications.
5
FAN WIRING
TERMINALS
1
HUMIDIFIER
CONV.
HP
W1
O/B
W2
AUX
W3
AUX2
Y
Y
Y2
Y2
G
G
L
NOT USED
OUT1
OUT2
IN1
IN2
DATS1
DATS2
VENTILATOR/DEHUMIDIFIER
TERMINALS
1
TO
SYSTEM
FAN
M24731
STAGE 1
HEAT
STAGE 2
HEAT
COMPRESSOR
FAN
RELAY
C7089U1006
M24724
Fresh Air Ventilation System
Système de ventilation à air frais
M24732
69-1341EF—01
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