Greenheck MP-310 Bedienungsanleitung

Document Number 463547

MP-310 Motor Pack

UL listed electric actuators with spring return

for use with WD-300 series dampers

Installation Instructions

Motor Pack Contents

1. Actuator

2. Actuator Bracket

3. Actuator Arm Assembly

4. Connecting Links

5. Actuator Spring

All necessary hardware included

greater stability to the linkage. Operate the damper

manually. Verify that the linkage fasteners do not

interfere with any components of the assembly

and that the damper blades close completely when

released. To increase spring tension raise the spring

up on the bracket. To decrease spring tension lower

the spring.

Note: It is important to avoid too much spring

tension; use just enough tension to help close the

damper. Too much tension could impair opening of

the damper.

6. Actuators are supplied with junction boxes and

covers. When wiring, make sure the supply voltage

agrees with the actuator voltage. On dual voltage

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 page 2 and 3 for typical wiring diagrams).

7. If the damper fails to operate properly, check for

one of the following causes:

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

• Check for mounting screws interfering with the

1. The MP-310 motor pack is designed for installation

on model WD-300 series backdraft dampers only.

2. For single panel damper, insert tab of actuator

bracket into the slot on the side of the frame. For

dampers with center bars, the tab of the actuator

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 #10 hardware provided.

3. Position the connecting link(s) on the second

blade pivot from the bottom of the damper. Slip the

connecting link over the bushing and, with a needle

nose pliers, bend the tab over to the position shown

in Detail ‘A’. This will hold the connecting link in

place on the pivot.

4. Connect the actuator arm assembly to the

connecting link using the provided hardware.

5. To adjust the actuator linkage assembly, pull back

on the actuator arm assembly until a slight amount

of tension has been applied to the actuator spring.

Tighten the fasteners between the connecting link

and actuator arm assembly. Fasteners should be

placed as far apart as possible. This will provide

DETAIL "A"

Single Panel Multiple Panel

blade and linkage rotation

• Spring tension too great

• Excessive voltage drop

• Excessive negative pressure in the building

If the 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 panel dampers, the actuator

is installed as shown on page 1 in the multiple panel

view. On triple panel dampers, two actuators are

installed as shown in the multiple panel view.

Actuator Speciﬁcations

MP-310 motor pack uses a single phase shaded pole

stall type impedace 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.

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

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 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.

Single Phase

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

Three Phase

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

Chart 1

* Actuator wiring diagrams on page 3.

Actuator Wiring Diagrams

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

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 warrantees can be located on greenheck.com within the product area tabs and listed

in the Library under Warrantees.

Phone: (715) 359-6171 • Fax: (715) 355-2399 • E-mail: [email protected] • Website: www.greenheck.com

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