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Table Of Contents

PRODUCT DATA

63-2627-01

Series 41 and 81

Modutrol IV™ Motors

APPLICATION

The Series 41 and Series 81 Modutrol IV Motors are

2-position (line- and low- voltage control, respectively)

spring-return motors. They are used to operate dampers or

valves in applications where it is necessary or desirable to

have the controlled element return to the starting position in

the event of power failure or interruption.

FEATURES

• Replaces M445, M845 and M865 motors.

• Models rated for 60 lb.-in. torque.

• Fixed torque throughout the entire voltage range.

• Integral spring return returns motor to normal position

when power is interrupted.

• Integral junction box provides NEMA 3 weather

protection.

• Motor and circuitry operate from 24 Vac. Models

available with factory installed transformer, or a field

added internal transformer.

• Quick-connect terminals are standard—screw terminal

adapter is available.

• Adapter bracket for matching shaft height of older

motors is available.

• Motors have field adjustable stroke (90° to 160°).

• Die-cast aluminum housing.

• Motors are designed for either normally open or

normally closed valves and dampers.

• All models have auxiliary switch cams.

• Integral auxiliary switches are available factory

mounted, or can be field added.

• Motors can operate valve linkages from the power end

or auxiliary end shafts for normally closed or normally

open valve applications.

• All models have dual shafts (slotted and tapped on

both ends).

• Nominal timing standard of 30 seconds (90° stroke),

and 60 seconds (160° stroke). Other timings available.

Contents

Application ........................................................................ 1

Features ........................................................................... 1

Specifications ................................................................... 2

Ordering Information ........................................................ 2

Installation ........................................................................ 4

Operation and Checkout .................................................. 10

Replacement .................................................................... 10

Summary of content (12 pages)

PAGE 1
Series 41 and 81 Modutrol IV™ Motors PRODUCT DATA FEATURES • Replaces M445, M845 and M865 motors. • Models rated for 60 lb.-in. torque. • Fixed torque throughout the entire voltage range. • Integral spring return returns motor to normal position when power is interrupted. • Integral junction box provides NEMA 3 weather protection. • Motor and circuitry operate from 24 Vac. Models available with factory installed transformer, or a field added internal transformer.
PAGE 2
SERIES 41 AND 81 MODUTROL IV™ MOTORS SPECIFICATIONS Models: TRADELINE models are selected and packaged to provide ease of stocking, ease of handling and maximum replacement value. TRADELINE model specifications are the same as those of standard models unless specified otherwise. Modutrol IV Order Number Guide: See Table 1. Dimensions: See Fig. 2. Crankshaft: 3/8 in. (9.5 mm) square. Electrical Ratings: See Table 2. Table 1. Series 41 and Series 81 Modutrol IV Series 2 Version Order Number Guide.
PAGE 3
SERIES 41 AND 81 MODUTROL IV™ MOTORS ASYMMETRICAL MOTORS VERTICAL REFERENCE VERTICAL REFERENCE VERTICAL REFERENCE FULLY CLOSED 10 SYMMETRICAL MOTORS VERTICAL REFERENCE FULLY CLOSED 10 10 45 90 FULLY CLOSED FULLY CLOSED 160 160 90 FULLY OPEN FULLY OPEN FULLY OPEN 90 DEGREE STROKE 160 DEGREE STROKE FULLY OPEN 160 DEGREE STROKE 90 DEGREE STROKE NON-SPRING RETURN MOTORS SPRING RETURN MOTORS AND NON-SPRING RETURN MOTORS M31079 Fig. 1.
PAGE 4
SERIES 41 AND 81 MODUTROL IV™ MOTORS Accessories: 220736 Internal Auxiliary Switch Kit can be field-installed. One-(220736A) and Two- (220736B) switch kits available. 220738A Adapter Bracket raises motor shaft height by 19 mm to match that of previous Modutrol Motor models. 220741A Screw Terminal Adapter converts the standard quickconnect terminals to screw terminals. 221455A Infinitely Adjustable Crank Arm approximately 0.75 in.
PAGE 5
SERIES 41 AND 81 MODUTROL IV™ MOTORS STANDARD BOLTS (4) BOLTS PROVIDED (4) 1 WIRING BOX MOTOR ND RE WE PO ADAPTER BRACKET ND RE WE PO EQUIPMENT BASE 1 #12 OR 1/4" ZINC PLATED MACHINE SCREWS OR BOLTS M18993 Fig. 3. Mounting the motor with an adapter bracket. 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.
PAGE 6
SERIES 41 AND 81 MODUTROL IV™ MOTORS Valve Linkages Use the 220738A Adapter Bracket with the Q100 Linkage in all valve applications. The 220738A Adapter Bracket is not required with the Q5001 Valve Linkage (see Fig. 4). JUNCTION BOX POWER END OF MOTOR MOTOR IMPORTANT All wiring must comply with applicable codes, ordinances and regulations. Make sure that the voltage and frequency stamped on the motor correspond to the power supply characteristics. Fig.
PAGE 7
SERIES 41 AND 81 MODUTROL IV™ MOTORS MOTOR THERMOSTAT LIMIT CONTROL 1 MOTOR STARTER 24V MOTOR TRANSFORMER 1 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. M806A BLOWER Fig. 6. Typical connections for Series 41 Motors. MOTOR THERMOSTAT 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. M809A Fig. 9. Power connections for Low Voltage Motors controlling two-position outside air dampers. LIMIT CONTROL TRANSFORMER 1 1 POWER SUPPLY.
PAGE 8
SERIES 41 AND 81 MODUTROL IV™ MOTORS SETTINGS AND ADJUSTMENTS Before Setting Stroke 1. 2. 3. Remove the top cover from the motor. Disconnect the controller from the motor. For models with an internal transformer (line voltage motors), ensure that power (and nothing else) remains connected to the motor. Auxiliary Switches The auxiliary switches are spdt switches that are actuated by adjustable cams. The cams are factory-mounted on the motor shaft at the power end of the motor.
PAGE 9
SERIES 41 AND 81 MODUTROL IV™ MOTORS Auxiliary Switch Adjustment Adjustable cams actuate the auxiliary switches. These cams can be set to actuate the switches at any angle within the stroke of the motor. Select switch differential of 1° or 10°. NOTES: — — — — actuates the right switch and the outer cam actuates the left switch (viewed from the power end). Refer to Fig. 11. Each division on the cam represents 15° of motor rotation. 1. 2.
PAGE 10
SERIES 41 AND 81 MODUTROL IV™ MOTORS OPERATION AND CHECKOUT NOTES:The motor should start and run smoothly, moving the valve stem to the opposite end of its stroke. If this is not the case: —Ensure there is power to the motor. —If there is not power, check the controller circuit for open or short circuits. —If the trouble still cannot be found, measure the voltage at the source. —Line voltage must be at least 85 percent of rated voltage stamped on motor nameplate.
PAGE 11
SERIES 41 AND 81 MODUTROL IV™ MOTORS 11 63-2627—01
PAGE 12
SERIES 41 AND 81 MODUTROL IV™ MOTORS Automation and Control Solutions Honeywell International Inc. Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Toronto, Ontario M1V 4Z9 customer.honeywell.com ® U.S. Registered Trademark © 2009 Honeywell International Inc. 63-2627—01 E.K. Rev.