SERIES 72 MODUTROL IV™ MOTORS
5 Based on 63-2640—08
Accessories:
220736B Internal Auxiliary Switch Kit; two switches, can be
field-installed on TRADELINE models.
220738A Adapter Bracket raises motor shaft height by 3/4 in
(19 mm) to match that of previous Modutrol Motor models.
220741A Screw Terminal Adapter converts the standard quick-
connect terminals to screw terminals.
221455A Infinitely Adjustable Crank Arm, can rotate through
downward position and clear motor base without requiring
an adapter bracket.
4074ERU Weatherproofing Kit provides NEMA 3 rating for
Modutrol IV Motors mounted in position other than upright.
50017460-001 Internal Transformer; 24/120/230 Vac 50/60 Hz
primary, 24 Vac secondary, quick connect terminals.
7617ADW Crank Arm, can rotate through downward position
and clear motor base without requiring an adapter bracket.
Q100 Linkage connects Modutrol Motor to V51 Butterfly Valve.
Requires the 220738A Adapter Bracket.
Q181 Auxiliary Potentiometer for sequence or unison control of
1 to 4 additional modulating (Series 90) motors.
Q209E,F Manual Potentiometer for Modutrol Motors
Q5001 Bracket and Linkage Assembly connects Modutrol IV
Motor to water or steam valve.
Q605 Damper Linkage connects motor to damper. Includes
motor crank arm.
Q607 External Auxiliary Switch controls auxiliary equipment as
a function of motor position.
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 accessory installation and motor
servicing when selecting a location (see Fig. 2). 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 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 counterclockwise rotation limit, as
viewed from the motor power end).
• Spring Return Motors are shipped from the factory in their
normal position.
• Normally closed models are shipped at the counterclockwise
rotation limit, as viewed from the motor power end.
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 previous Modutrol Motor models.
The following applications require this bracket:
• Q607 External Auxiliary Switch.
• Damper linkage applications requiring 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 requires adjust-
ment 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.
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