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EXCEL 10 W7753A UNIT VENTILATOR CONTROLLER
95-7520—02 6
Fig. 9. Typical W7753A unit ventilator application wiring
diagram with T7770F wall module. (For note 2, refer to
Fig. 8.)
Fig. 10. Typical window and occupancy sensor wiring
diagram. (For note 2, refer to Fig. 8.)
12
3
4 5 6 7 8
E-BUS
24 VAC
W7753A
UNIT
VENTILATOR
CONTROLLER
E GND
GND
SNSR
SETPT
LED
BYPASS
GND
GND
9 10 11 12 14 J3 15
31 30 29 28 27 26 25 24 23 22 21 20
24 VAC COM
E-BUS
JACK
22 VDC OUT
19 18 17 16
AI-1 OHM
AI-2 OHM
AI-4 V/mA
OUT 7
OUT 6
OUT 5
OUT 4
OUT 8
OUT 1
OUT 3
OUT 2
AI-3 V/mA
13
DI-2
DI-4
DI-1
DI-3
M29164
GND
GND
TRIAC EQUIVALENT CIRCUIT
E-BUS
OUTSIDE
AIR CO
SENSOR
3 41 2
TR23-F5
WALL MODULE
NET 1
GND
SENSOR
NET 2
7 85 6
9 10
LED
SET PT
FAN
BYPASS
12345678
E-BUS
24 VAC
W7753A
UNIT
VENTILATOR
CONTROLLER
1
2
1
2
3
3
3
EARTH GROUND WIRE LENGTH SHOULD BE HELD TO A MINIMUM.
USE THE HEAVIEST GAUGE WIRE AVAILABLE, UP TO 14 AWG (2.O MM
2
)
WITH A MINIMUM OF 18 AWG (1.O MM
2
), FOR EARTH GROUND WIRE.
TO ASSURE PROPER ELECTRICAL CONTACT, WIRES MUST BE TWISTED
TOGETHER BEFORE INSERTION INTO THE TERMINAL BLOCK.
CONTACTS MUST BE SUITABLE FOR DRY SWITCHING, 5V AT 10 mA. USE
SEALED TYPE, GOLD FLASHED OR PIMPLED CONTACTS.
E-BUS
E GND
GND
SNSR
SETPT
LED
BYPASS
GND
GND
9101112 14 J315
31 30 29 28 27 26 25 24 23 22 21 20
24 VAC COM
E-BUS
JACK
22 VDC OUT
19 18 17 16
AI-1 OHM
AI-2 OHM
AI-4 V/mA
OUT 7
OUT 6
OUT 5
OUT 4
OUT 8
OUT 1
OUT 3
OUT 2
AI-3 V/mA
13
DI-2
DI-4
DI-1
DI-3
M12692
OCCUPANCY SENSOR
(CONTACT CLOSED =
OCCUPIED)
WINDOW CONTACT
(CONTACT CLOSED =
WINDOWCLOSED)
GND
GND
TRIAC EQUIVALENT CIRCUIT
24 VAC
+
-