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TYPICAL WIRING DIAGRAMS
Greenheck's MP-100A motor packs utilize single phase, 60 HZ (50 HZ optional) damper actuators and are supplied in one of
the following voltages: 24, 115, 220, or 440 volts. The voltage of the actuator is stamped into the housing near the output shaft.
For 208, 277, 575 or 600 volt operation, an optional transformer and a 115 volt motor pack is required.
1. Diagrams are shown for motor packs and dampers installed with powered ventilator fan equipped with a single speed
motor. The damper will open when the fan is on and close when the fan is off. For connection to 2-speed motors or for
other control sequences consult the factory.
2. Diagrams shown with end switches are for applications where it is desirable to have the damper fully open before fan
start-up.
*Fan Starter
Manual or Magnetic
L
1
L
2
115v Neutral
(white) Conductor
* For 115v starters, neutral (white)
conductor is not opened or fused.
220, 277, 440, 575 or 600 volts
Fan Starter
Manual or Magnetic
L
1
L
2
L
3
Optional transformer for
277, 575 or 600 volts
(115v motorpack required)
575/600 Volt Transformer
H
2
600v
575v
550v
Primary
H
1
115 or 220 volts
Safety Disconnect
Fuse (if required)
Black
Black
Green
Safety Disconnect
Motor
Fuse (if required)
Black
Black
Green
Model B050WZ13
X
1
110v
115v
120v
Secondary
X
2
Single Phase
115 or 220 volts - with End Switch
(Requires end switch kit #851038 installed on damper)
L
1
L
2
1O
115v Neutral
Fan
(white)
Motor
Conductor
Fan
On-Off
Switch
Actuator
* For 115v starters, neutral (white)
conductor is not opened or fused.
Three Phase
220, 277, 440, 575 or 600 volts with End Switch
(Requires end switch kit#851038 installed on damper)
L
1
L
2
L
3
3O
Fan
Fan
On-Off
Switch
Actuator
Optional transformer for
277, 575 or 600 volts
(115v motorpack required)
Transformers
208/220/277/480 Volt Transformer
115 volt secondary
Black
Black
Green
GREENHECK
P.O. BOX 410 SCHOFIELD, WISCONSIN 54476-0410
PH. 715-359-6171
www.greenheck.com
*Magnetic Fan
Safety Disconnect
Starter
M
Fuse
(if required)
Fan Starter
Safety Disconnect
Manual or Magnetic
M
Fuse
(if required)
Model AE-249
208/220/277/480 Volt Primary
Common (white)
208v (Red)
220v (Green)
277v (Brown)
480v (Blue)
Connect common wire and one color
coded wire corresponding to supply
voltage of source. Insulate all unused
primary wires.
IOM MP-100A Motor Pack FS
Copyright © 2001 Greenheck Fan Corp.
MP-100A
1O
Fan
Motor
NC
End
C
Switch
NO
Black
Black
Actuator
Green
3O
Fan
Motor
NC
End
C
Switch
NO
Black
Black
Actuator
Green
Rev. 2 June 2001
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