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MODELS 350 • 350BK • 350BR • 355 • 355BK • 355BR
356 • 356BK • 356BR • 358
2. For standard installation, connect the two leads in the ther-
mostat wiring box to the two power leads. Attach ground wire
from the power cable to the green screw in the box.
TO
MOTOR
GROUND TO
SWITCH
BOX
WHITE
BLACK
THERMOSTAT
WHITE
MASTER
ON-OFF SWITCH
120 VOLTS
LINE IN
MOTOR
VENTILATOR
WIRING BOX
MASTER
ON-OFF
SWITCH
BLK
GRD
WHT
This diagram shows how to by-pass the thermostat to turn the
ventilator on or off manually.
BLACK
BLK
GRD
WHT
TO
MOTOR
BLACK
THERMOSTAT
WHITE
RED
GROUND TO
SWITCH
BOX
WHITE
120 VOLTS
LINE IN
BLACK
RED
THERMOSTAT BY-PASS SWITCH
(SHOULD NORMALLY BE IN “OFF” POSITION)
MASTER
ON-OFF SWITCH
MOTOR
VENTILATOR
WIRING BOX
MASTER
ON-OFF
SWITCH
BLK
GRD
WHT
BLK
GRD
WHT
THERMOSTAT
BY-PASS
SWITCH
RED
TO
MOTOR
BLACK
THERMOSTAT
WHITE
RED
WHITE
120 VOLTS
LINE IN
RED
THERMOSTAT BY-PASS SWITCH
(SHOULD NORMALLY BE IN “OFF” POSITION)
MASTER
ON-OFF SWITCH
MOTOR
VENTILATOR
WIRING BOX
MASTER
ON-OFF
SWITCH
BLK
GRD
WHT
BLK
GRD
WHT
THERMOSTAT
BY-PASS
SWITCH
RED
BLACK
This diagram shows how to wire a humidistat.
3. Replace the metal cover plate over the thermostat wiring box
and fasten securely.
4. The thermostat setting determines the temperature at which
the ventilator turns “on”. The ventilator automatically turns off
when the attic temperature is 10
O
F lower than the thermostat.
If you want the ventilator to operate at a different temperature,
insert a screwdriver into the slot and turn the indicator to the
desired temperature.
The ventilator will now turn “ON” at this temperature and “OFF”
10
O
F lower.
70
O
F
80
O
F
90
O
F
100
O
F
110
O
F
120
O
F
130
O
F
FAN ON
TEMPERATURE
Indicator shown rotated fully counterclockwise for a setting
of 70
O
F.
HUMIDISTAT
TO
HUMIDISTAT
BLACK
GROUND TO
SWITCH BOX
WHITE
BLACK
BLACK
GROUND TO
SWITCH BOX
WHITE
BLACK
BLACK
BLACK
GROUND TO
SWITCH BOX
WHITE
GROUND TO
SWITCH BOX
1. Remove the thermostat wiring box cover plate. Bring the power
cable at least 6" into the ventilator wiring box. Fasten power
cable to box with appropriate connector.