Greenheck MS4120, MS4620, MS8120, MS7520 User Manual

Part number 464287

Honeywell Actuators

Direct Drive Series

MS4120, MS4620, MS8110, MS8120, MS7510, MS7520

UL Listed Direct Drive Actuator

INSTALLATION INSTRUCTIONS

These instructions apply to the external field installation of Honeywell actuators on Greenheck model VCD Control Dampers when they are duct mounted or sleeved.

Tools Required:

Wrenches:

(1) 3/8 in., (1) 7/16 in., and (1) 10mm

Mounting shown for damper in vertical position.

No. Part Number Qty. Description

1 MS actuator

2 415455 4 1/4 - 20 spinlock nut

3 415586 4 #14 x ¾ TEK SMS

4 415934 1 #10-24 nylock nut

5 416048 1 ¼ x 3/8 shoulder bolt

6 815027 1 standoff bracket

7 651815 1 mounting bracket

8 415609 4 thread stud

WARNING

Equipment Damage or Electrical Power Hazard. Line voltage can cause death or serious injury and short equipment circuitry. Disconnect power supply before installation.

CAUTION

Device Malfunction Hazard. Improper set screw tightening causes device malfunction. Tighten set screws with proper torque to prevent damper shaft slippage.

Note: Torque actuator shaft clamp screw to 88 in./lbs. (9.9 Nm).

Figure 1: Honeywell MS series external mount (exploded view).

Black

White

120 Volt o

24 volt

Instructions:

These installation instructions assume the damper is already mounted in a duct or sleeve with the damper shaft extending beyond the duct or sleeve a minimum of 6 inches (152mm).

1. Install the stand off bracket.

Dampers with a jackshaft 1a. Jackshaft supplied is typically 1 in. (25mm) diameter. For

these applications the bearing must be removed from stand-off bracket (Item #6). Mount the stand-off bracket (item #6) with [4] threadstuds (item #8) and [4] 1/4 - 20 spinlock nut (item 2). Orient the stand-off bracket (item #6)

so the hole is centered on the jackshaft. Dampers without a jackshaft (Shaft Extension) 1b. Mount the stand off bracket (item #6) spanning across the

damper frame flanges. Fasten to the damper frame with [4]

#14 x ¾ (M6 x 12mm) Tek screws (item #3). Be sure not to

run the screws into the damper linkage, which is between

the flanges.

2. Mount actuator bracket

Mount actuator bracket (item #7) using [4] thread studs

(item #8) and [4] ¼-20 (M6) nuts (item #2). Note: The mounting bracket (item #7) may be attached

in three positions: parallel with the duct, perpendicular up from the duct, or perpendicular down from the duct. Choose a position that offers the most clearance for the application.

3. Actuator rotation

If the fail rotation of the damper is counter clockwise the

universal clamp should be on the side of the actuator

showing the power direction as clockwise rotation (usually

shipped in this orientation). To change the universal clamp to the other side, remove

the retaining clip and then the universal clamp from the

actuator. Move the universal clamp onto the actuator. When

the clamp is installed, then lock in place using the retaining

clip. Note: All fail rotations refer to the damper shaft rotation

needed to achieve the desire blade fail position. If fail

position is closed, make sure damper blades are fully

close and ensure blade seals are compressed prior to

tightening the actuator clamp to the damper extension pin

or jackshaft. Inspect the damper blades and the damper

shaft to determine the proper damper shaft rotation for the

desired fail position.

4. Mounting actuator

Slide the actuator (item #1) over damper drive shaft.

Install thread stud through the mounting lug on the back

of the actuator and through the corresponding hole of

the actuator bracket (item #7). Secure the thread stud to

actuator bracket (item #7) with #10-24 (M5) nut. Verify that

the damper is in its fail position. Secure actuator (item #1)

to damper drive shaft by torquing the screw on the actuator

universal clamp to 88 in. lbs. (9.9Nm).

5. The wiring illustration below identifies actuator electrical

requirements and connections. Wiring must comply with all applicable electrical codes.

6. Apply power to the actuator. The damper blades should

fully open or close and return to the fail position when power is disconnected.

Orientation of Stand Off

Bracket for a jackshaft

driven damper

Orientation of Stand Off

Bracket for a directly

driven damper

Wiring Illustration

Important

A break in power of less than one second can cause the actuator to spring-return 5 degrees or less and remain in place until a break in power of longer duration.

Model Volts Running Holding

MS4120F1006

MS4120F1204

MS4620F1005

MS4620F1203

MS7510A2008

MS7510A2206 14W

MS7520A2007 16W

MS7520A2015 22W

MS7520A2205 16W

MS7520A2213 22W

MS8110A1206 24 VAC/VDC 30W 8W

MS8120F1002

MS8120F1200

120 VAC 35W 10W

230 VAC 35W 10W

14W

24 VAC/VDC

24 VAC 45W 10W

464287 MS4120, MS4620, MS8120 IOM

Rev. 6 Feb 2010.