Greenheck MS7505 and MS8105 Series (473389) - Manual

These instructions apply to the external field installation of the Honeywell actuators on Greenheck models VCD Control
Dampers when they are duct mounted or sleeved.
These models are direct drive actuators that rotate to their energized position when power is applied, and spring return to
their fail position when power is disconnected.
Tools Required:
Wrenches: (1) 7 ⁄
16
in., (1) 3 ⁄
8
in.
(1) Ratchet with 3 ⁄
8
in. deepwell socket
(1) 1 ⁄
8
in. Allen wrench
®
Part number 473389
MS7505 & MS8105 Series Actuators
Models MS7505A2030, MS7505A2130 and MS8105A1130 Series
InSTAllATIon InSTRucTIonS
Figure 1: Honeywell MS7505 & MS8105 Series external mount (exploded view).
! !
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.
Torque Set Screws
to 50-55 in. lbs.
(5.6-6.2 Nm)
Part No. Quantitiy Description
1 1 Drive Shaft or Extension Pin
2 5 1/4-20 Spinlock Nut
3 1 Actuator
4 1 Standoff Bracket
5 1 Anti-Rotation Bracket
6 4 Thread Stud
7 1 5/16 in. x 3/8 in. shoulder bolt
8 4 #14 x 3/4 Tek Screws
Note:
Actuator shaft collar
accepts 1/2 in. (13mm)
diameter shaft. Shaft
rotation designated from
this side of actuator.