Filter
Top Products
VAV-SVN01E-EN 51
Wiring
Diagrams
Figure 23 – Fan-Powered Control Boxes
FOR SERIES FAN POWERED TERMINAL UNITS ONLY.
EXTERNAL TO CONTROL BOX.
OPTIONAL OR ALTERNATE CIRCUITRY
DISCONNECT SWITCH, FUSE, & SCR ARE LOCATED
DETERMINED BY MOTOR VOLTAGE ON ORDER.
FUSE IS OPTIONAL.
VOLTAGE FOUND ON UNIT NAMEPLATE.
6.
5.
4.
CAPACITOR IS INSTALLED ON FAN HOUSING.
FACTORY INSTALLED
BY OTHERS
3.
2.
NOTES:
1.
NO
P.E. SWITCH-2
CC
P.E. SWITCH-1
BK
NC
BK
NC
BK
NO
NO
NC
C
6.
6.
6.
2.
2.
2.
5.
5.
5.
3.
3.
3.
4.
4.
4.
}
BK
24V
1
3
2
4
R
MOTOR
RELAY
BR
TRANSFORMER
FUSE
BK
BK
W
GROUND
SCREW
GREEN
DISCONNECT
SWITCH
BK
W
L1
N
24V
BK
BL
Y
CONTROLLER
CAPACITOR
BR
BR
FAN
MOTOR
BLOCK
TERMINAL
W
BK
BR
R
BK
CONTROL
SPEED
MOTOR
W
W
W-COM
BK
LINE VOLTAGE
OR FROM HEATER TERMINAL
TO VAV
Fan-powered Control Box
with Electronic or DDC Controls
CAPACITOR
MOTOR
FAN
SWITCH
DISCONNECT
OR FROM HEATER TERMINAL
LINE VOLTAGE
Fan-powered Control Box
with Pneumatic Controls
Duct Pressure Switch Option
BR
BR
TERMINAL
W-COM
BK
W
BK
BLOCK
R
24V
1
3
TRANSFORMER
MOTOR
BK
BR
RELAY
24V
BK
2
4
GREEN
GROUND
SCREW
CONTROL
SPEED
MOTOR
W
W
FUSE
BK
BK
BK
W
W
BK
L1
N
DUCT PRESSURE
SWITCH
CAPACITOR
MOTOR
FAN
Fan-powered Control Box
with Pneumatic Controls
BR
BR
P.E. SWITCH
TERMINAL
W-COM
W
BK
BLOCK
BK
CONTROL
SPEED
MOTOR
W
W
LINE VOLTAGE
SWITCH
DISCONNECT
OR FROM HEATER TERMINAL
GREEN
GROUND
SCREW
FUSE
BK
BK
BK
BK
W
W
L1
N
BK
C
NO
NC
DUCT PRESSURE MAIN CONTROL
FAN CONTROL BOX FAN CONTROL BOX
FAN CONTROL BOX
CAPACITORS BEFORE SERVICING.
DISCHARGE MOTOR START/RUN
FAILURE TO DISCONNECT POWER
BEFORE SERVICING CAN CAUSE
SEVERE PERSONAL INJURY OR DEATH.
UNIT TERMINALS ARE NOT DESIGNED
TO ACCEPT OTHER TYPES OF
FAILURE TO DO SO MAY CAUSE
DAMAGE TO THE EQUIPMENT.
USE COPPER CONDUCTORS ONLY!
CONDUCTORS.
SERVICING.
REMOTE DISCONNECTS BEFORE
HAZARDOUS VOLTAGE!
DISCONNECT, LOCK OUT AND TAG
ALL ELECTRIC POWER INCLUDING
WARNING
WARNING
CAUTION
CAUTION
}
}
}