User Guide

SERIES 41 AND 81 MODUTROL IV™ MOTORS
63-2627 4
INSTALLATION
When Installing this Product...
1. Read these instructions carefully. Failure to follow them
could damage the product or cause a hazardous
condition.
2. Check the ratings given in the instructions and on the
product to make sure the product is suitable for your
application.
3. Installer must be a trained, experienced service
technician.
4. After installation is complete, check out product
operation as provided in these instructions.
CAUTION
Electrical Shock or Equipment Damage Hazard.
Can shock individuals or short equipment
circuitry.
Disconnect all power supplies before installation.
Motors with auxiliary switches can have more than one
disconnect.
CAUTION
Equipment Damage Hazard.
Can damage the motor beyond repair.
Never turn the motor shaft by hand or with a wrench.
Forcibly turning the motor shaft damages the gear train
and stroke limit contacts.
Location
Allow enough clearance for installing accessories and motor
servicing when selecting a location (see Fig. 1). If located
outdoors, use liquid-tight conduit connectors with the junction
box to provide NEMA 3 weather protection. If mounted
outdoors in a position other than upright, install a 4074ERU
Weatherproofing Kit and liquid-tight connectors to provide
NEMA 3 protection.
CAUTION
Motor Damage Hazard.
Deteriorating vapors and acid fumes can damage
metal parts.
Install motor in areas free of acid fumes and other
deteriorating vapors.
In excessive salt environments, mounting base and screws
should be zinc or cadmium plated, not stainless steel or
brass. Use the 220738A Adapter Bracket for mounting on
these surfaces.
Mounting
Use the following guidelines for proper motor mounting:
• Always install motors with the crankshaft horizontal.
• Mounting flanges extending from motor housing base are
drilled for 6.4 mm machine screws or bolts.
• Motors are shipped from the factory in their normal position:
— Normally closed models are shipped at the counter-
clockwise rotation limit (viewed from the power end).
NOTE: Refer to Fig. 2 for graphical representation of
fully-open and fully-closed positions.
Fig. 2. Motor shaft positions at stroke limits
(viewed from power end).
Adapter Bracket
The 220738A Adapter Bracket, positioned between the motor
and the equipment, raises motor shaft height by 19 mm to
match that of previous Modutrol Motor models.
The following applications require this bracket:
• Q607 External Auxiliary Switch.
• Damper linkage applications require added clearance to
allow:
— Crank arm rotation through the downward position.
— Sufficient damper linkage to reach the motor shaft.
• All valve linkages except the Q5001.
NOTE: When the bracket is not used in a replacement
application, the damper linkage can require
adjustment for the new shaft position.
To mount the motor with the bracket:
1. Mount the bracket to the equipment with existing or stan-
dard bolts.
2. Using the provided bolts, mount the motor to the bracket
threaded holes. See Fig. 3.
For valve linkage applications (other than the Q5001):
1. Mount the bracket to the linkage.
2. Position the motor on the bracket to align the motor shaft
with the linkage.
3. Attach the motor to the bracket with the four bolts
(provided).
NOTE: The bolts go through the motor flange holes
and into the threaded holes of the bracket.
FULLY
OPEN
FULLY
CLOSED
VERTICAL
REFERENCE
10
90
90 DEGREE STROKE
FULLY
OPEN
FULLY
CLOSED
VERTICAL
REFERENCE
10
160
160 DEGREE STROKE
M17712