Greenheck MP-210 User manual

®
MP-210 Motor Pack 1
®
Document 463546
MP-210 Motor Pack
Spring return electric actuators for use
with WD-200 series damper
Installation, Operation and Maintenance Manual
Please read and save these instructions for future reference. Read carefully before attempting to assemble, install,
operate or maintain the product described. Protect yourself and others by observing all safety information. Failure
to comply with these instructions will result in voiding of the product warranty and may result in personal injury
and/or property damage.
Electrical Guidelines
All wiring shall be done in accordance with the
National Electrical Code ANSI/NFPA-70 latest edition,
any local codes that may apply, and wiring diagrams
developed in compliance with the job or project
design and specifications.
Important!
Electrical input may be needed for this equipment.
This work should be performed by a qualified
electrician. Verify power before wiring actuator.
Greenheck is not responsible for any damage to, or
failure of the unit caused by incorrect field wiring. To
avoid causing death or serious bodily harm to building
occupants, follow all instructions carefully. Dampers
must close completely to preserve the integrity of the
fire smoke separation.
Electrical Guidelines
Motor Pack Contents
1. Actuator
2. Actuator Bracket
3. Actuator Arm Assembly
4. Connecting Links
5. Actuator Spring
All necessary hardware included
1
4
3
5
2
41
3
5
2
Single Panel Double Panel

MP-210 Motor Pack2®
Installation Instructions
1. The MP-210 motor pack is designed for installation
on model WD-200 series backdraft dampers only.
2. For single panel damper, insert tab of motor bracket
into the slot on the side of the frame. For dampers
with center bars, the tab of the motor bracket should
be inserted into the slot on the bottom of the center
bearing rail. Position bracket over the two holes on
the bottom of the frame and secure with the hardware
provided.
3. Loosely connect the actuator arm assembly to
the connecting link using the provided hardware.
Fasteners should be placed as far apart as
possible to provide greater stability to the linkage.
The connecting links may need to be modified or
shortened on some dampers sizes. To make the
adjustment easier, release the spring from the spring
adjustment bracket.
Note: The connecting link(s) have been installed
on the damper at the factory.
4. To adjust the actuator linkage, position the actuator
arm (attached to the damper) approximately 1⁄8in.
away from the rubber bumper. While holding the
damper blades closed, tighten the fasteners between
the connecting link and actuator arm assembly.
Place the spring onto the first hook of the adjustment
bracket (see figure on page 1). Operate the damper
manually. Verify that the linkage and fasteners do
not interfere with any components of the assembly
and that the damper blades close completely when
released. To increase spring tension, move the spring
to the next hook as shown on page 1.
Note: It is important to avoid too much spring
tension; use just enough tension to close the
damper. Too much tension could impair opening of
the damper or cause damage to the components
as the crank arm impacts the rubber bumper.
5. Actuators are supplied with junction box and cover.
When wiring, make sure the supply voltage agrees
with the actuator voltage. On dual voltages motor
packs, be sure to connect the proper motor leads
for the correct voltage and insulate any unused wire.
The voltage of each specific model is indicated on a
label that is affixed to the actuator (see typical wiring
diagrams).
6. If the damper fails to open properly, check for one of
the following causes:
• Check for an ‘out of square’ or racked damper
• Check for mounting screws interfering with the
blade and linkage rotation
• Spring tension too great
• Excessive voltage drop
• Excessive negative pressure in the building
If actuator fails to function:
• Check for correct voltage
• Check for proper wiring
Motor Pack Quantity
More than one motor pack may be required depending
on damper size:
• On single panel dampers, the actuator is
installed as shown on page 1 in the single
panel view
• On double or triple panel dampers, the
actuator(s) is installed as shown on page 1
in the multiple panel view.
Actuator Specifications
MP-210 motor pack uses a single phase shaded pole
stall type impedance protected electric actuators and
are supplied in various voltages (see chart). For 277,
380, 575, or 600 volt operation a transformer and 120V
motor pack is required.
Motor Packs Stall Amps Spec ID#
24V (50/60 Hz) .66 G24
110 - 120V
(50/60 Hz) .15 G110-240
208 - 240V
(50/60 Hz) .07 G110-240
460V (60 Hz) .041 G460

MP-210 Motor Pack 3
®
Typical Wiring Diagrams
Wiring diagrams are shown for motor packs and dampers installed with power ventilator fan equipment with single
speed motor. The damper will when the fan is on and close when the fan is off. For connection to two-speed fan
motors or for other control sequences consult the factory. The wiring diagrams shown with end switches are for
applications where it is desirable to have the damper fully open before fan start-up.
Single Phase
Three Phase
Actuator Wiring Diagrams
Blue
110/115/120V Dual Voltage Actuators
Blue
208/220/230/240V Dual VoltageActuators
24V Single VoltageActuator
White
460V Single VoltageActuator
Brown
Brown

463546 • MP-210 Motor Pack, Rev. 6, October 2019 Copyright 2019 © Greenheck Fan Corporation4
As a result of our commitment to continuous improvement, Greenheck reserves the right to change specifications
without notice.
Product warranties can be found online at Greenheck.com, either on the specific product page or in the literature
section of the website at Greenheck.com/Resources/Library/Literature.
®
Phone: [phone] • Fax: [phone] • Parts : 800.355.5354 • E-mail: [email protected] • Website: www.greenheck.com
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Transformers
575/600 Volt Transformer Model B050WZ13
208/220/277/460 Volt Transformer