SERIES 90 MODUTROL IV™ MOTORS
5
63-2631
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.
IMPORTANT
Always conduct a thorough checkout when
installation is complete.
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 dete-
riorating 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
CAUTION
Equipment Damage Hazard.
Can damage the motor beyond repair.
Always install motors with the crankshaft horizontal.
Improper motor mounting can result in inadequate
motor gear train lubrication.
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 1/4 inch (6.4 mm) machine screws or bolts.
• Non-Spring Return Motors are shipped from the factory in
the closed position (at the limit of counterclockwise rotation,
as viewed from the power end of the motor).
• Spring Return Motors are shipped from the factory in their
normal position:
— Normally closed models: shipped at limit of
counterclockwise rotation, as viewed from the power
end of the motor.
NOTE: Refer to Fig. 2 for graphical representation of full open
and full closed.
Fig. 2. Motor shaft positions at stroke limits
(viewed from power end of motor).
Adapter Bracket
The 220738A Adapter Bracket, positioned between the motor
and the equipment, raises motor shaft height by 0.75 in.
(19 mm) to match that of the former Modutrol Motor.
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 no bracket is used in replacement applications,
damper linkages require adjustment for the new shaft
position.
To mount the motor with the bracket (see Fig. 3):
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.
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. See Fig. 4.
FULLY
OPEN
FULLY
CLOSED
VERTICAL
REFERENCE
10
90
90 DEGREE STROKE
FULLY
OPEN
FULLY
CLOSED
VERTICAL
REFERENCE
10
160
160 DEGREE STROKE
M17712
