Greenheck 463545 MP-323 Operating instructions

Brand: Greenheck

Model: 463545 MP-323

Type: Operating instructions

Document Number 463545

MP-323 Motor Pack

Electric actuators with spring return for use

with WD-323 damper

Installation Instructions

MP-323 Motor Pack 1

Caution

Always disconnect, lock and tag power source before installing or servicing. Failure to disconnect power source

can result in fire, shock or serious injury.

Motor Pack Contents

1. Actuator

2. Actuator Bracket

3. Actuator Arm Assembly

4. Connecting Links

5. Actuator Spring

All necesary hardware included

Directions

1. The MP-323 motor pack is designed for installation

on model WD-323 backdraft dampers only. When

properly installed, the damper will be vertically

mounted to exhaust air.

2. Position the actuator bracket into the inside lower

left corner of the damper.

3. While holding the bracket snug into the corner and

keeping it square to the damper frame, trace the

location of the two mounting holes onto the damper

frame. Drill out the traced holes using a

⁄16 inch drill.

4. Mount the motor pack to the damper frame using

the hardware provided.

5. Connect the motor arm to the blade as shown in

Detail ’A’.

6. With the blades in the fully open position, rotate the

motor arm away from the damper until it seats ﬁrmly

against the rubber stop. Hold the arm in this position

whil tightening the two adjustment screws on the

motor linkage. (Adjustment screws should be placed

as far apart as possible to provide greater stability to

the linkage.)

7. Release the motor arm to allow the blades to close.

8. Actuators are supplied with junction boxes and

covers. When wiring, make sure the supply voltage

agrees with the actuator voltage. On dual voltage

motro packds, be sure to connect the proper motor

leads for the correct voltage and insulate any

unused wires. The voltage of each speciﬁc modes is

indicated on a label that is afﬁxed to the actuator (see

page 2 and 3 for typical wiring diagrams).

9. If the damper fails to operate properly, check for one

of the following causes:

A. Motor pack fails to close the damper completely:

• Check for an ‘out of square’ or racked damper

• Insufﬁcient spring tension

Detail "A"

Adjustment Screws

Mounting Hardware

Wiring Diagram

Black

Green

MP-323 Motor Pack2

B. Motor pack fails to open the damper completey:

• Check for an ‘out of square’ or racked damper

• Excessive spring tension

• Excessive voltage drop

C. Motor pack fails to function

• Check for correct voltage

• Check for proper wiring

Actuator Speciﬁcations

MP-323 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 a

120V motor pack is required.

Typcial Wiring Diagrams

Wiring diagrams are shown for motor packs and dampers installed with power ventilator fan equipment with single

speed motor. The damper will open when the fan is on and close when the fan is off. For connection to 2-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 had the damper fully open before fan start-up.

Three Phase

Single Phase

Motor Packs 24V (50/60 Hz)

110 thru 120V

(50/60Hz)

208 thru 240V

(50/60 Hz)

460V (60Hz)

Stall Amps .66 .15 .07 .041

Spec ID# G24 G110-240 G-110-240 G460

Chart 1

* Actuator wiring diagrams on page 3.

Optional transformer for

277, 380, 575 or 600 volts

(120V actuator required)

Optional transformer for

277, 380, 575 or 600 volts

(120V actuator required)

Blue

24V Single Voltage Actuator

460V Single Voltage Actuator

White

Brown

110/115/120V Dual Voltage Actuators

Blue

208/220/230/240V Dual Voltage Actuators

Optional transformer for

277, 380, 575 or 600 volts

(120V actuator required)

Optional transformer for

277, 380, 575 or 600 volts

(120V actuator required)

Blue

24V Single Voltage Actuator

460V Single Voltage Actuator

White

Brown

110/115/120V Dual Voltage Actuators

Blue

208/220/230/240V Dual Voltage Actuators

Optional transformer for

277, 380, 575 or 600 volts

(120V actuator required)

Optional transformer for

277, 380, 575 or 600 volts

(120V actuator required)

Blue

24V Single Voltage Actuator

460V Single Voltage Actuator

White

Brown

110/115/120V Dual Voltage Actuators

Blue

208/220/230/240V Dual Voltage Actuators

Optional transformer for

277, 380, 575 or 600 volts

(120V actuator required)

Optional transformer for

277, 380, 575 or 600 volts

(120V actuator required)

Blue

24V Single Voltage Actuator

460V Single Voltage Actuator

White

Brown

110/115/120V Dual Voltage Actuators

Blue

208/220/230/240V Dual Voltage Actuators

MP-323 Motor Pack 3

Optional transformer for

277, 380, 575 or 600 volts

(120V actuator required)

Optional transformer for

277, 380, 575 or 600 volts

(120V actuator required)

Blue

24V Single Voltage Actuator

460V Single Voltage Actuator

White

Brown

110/115/120V Dual Voltage Actuators

Blue

208/220/230/240V Dual Voltage Actuators

Optional transformer for

277, 380, 575 or 600 volts

(120V actuator required)

Optional transformer for

277, 380, 575 or 600 volts

(120V actuator required)

Blue

24V Single Voltage Actuator

460V Single Voltage Actuator

White

Brown

110/115/120V Dual Voltage Actuators

Blue

208/220/230/240V Dual Voltage Actuators

Actuator Wiring Diagrams

Transformers

575/600 Volt Transformer Model

B050WZ13

208/220/277/460 Volt Transformer

As a result of our commitment to continuous improvement, Greenheck reserves the right to change speciﬁcations

without notice.

Speciﬁc Greenheck product warranties are located on greenheck.com within the product area tabs and in the

Library under Warranties.

Phone: 715.359.6171 • Fax: 715.355.2399 • Parts: 800.355.5354 • E-mail: [email protected] • Website: www.greenheck.com

Our Commitment

Greenheck 463545 MP-323 Operating instructions

Greenheck 463545 MP-323 Operating instructions

Greenheck 463545 MP-323 Operating instructions

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