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APPLICATION
The Series 72 Modutrol IV Motors are used to control
dampers and valves. The motors accept a current or voltage
signal from an electronic controller to position a damper or
valve at any point between open and closed.
® U.S. Registered Trademark
Copyright © 2000 Honeywell • All Rights Reserved
Modutrol IV™ Motors
FEATURES
• Replaces M744S,T,Y and M745S,T,Y Motors.
• M7261, M7274, M7281, M7284, and M7294 are
non-spring return motors; M7272, M7282, M7285,
and M7286 are spring return motors.
• Oil immersed motor and gear train for reliable
performance and long life.
• Wiring box provides NEMA 3 weather protection.
• Actuator motor and circuitry operate from 24 Vac.
Models available with factory installed transformer
or an internal transformer can be field added.
• Quick connect terminals standard-screw terminal
adapter available.
• Adapter bracket for matching shaft height of older
motors is standard with replacement motors.
• Nominal timing of 30 seconds for 90° stroke and
60 seconds for 160° stroke.
• Valve and damper linkages, explosion-proof housing,
and auxiliary switches available as accessories.
• Spring return motors are rated for 25 lb.-in. and
60 lb.-in torque.
• Non-spring return motors are rated for 35 lb.-in.,
75 lb.-in., 150 lb.-in., and 300 lb.-in. torque.
• Models available with adjustable start (zero) and span.
• Models available with 4 to 20 mA input signal.
• Models available with 2 to 10 Vdc input signal.
• Die-cast aluminum housing.
Application ........................................................................
Features ...........................................................................
Specifications ...................................................................
Ordering Information ........................................................
Installation ........................................................................
Settings and Adjustments ................................................. 10
Operation and Checkout .................................................. 12
®
Series 72
PRODUCT DATA
Contents
1
1
2
2
5
63- 2202- 4
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Summary of Contents for Honeywell Modutrol IV 72 Series
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Page 1: Table Of Contents
• Die-cast aluminum housing. Contents Application ................ Features ................Specifications ..............Ordering Information ............Installation ................ Settings and Adjustments ..........10 Operation and Checkout ..........12 ® U.S. Registered Trademark ® Copyright © 2000 Honeywell • All Rights Reserved 63- 2202- 4... -
Page 2: Specifications
Honeywell, 1885 Douglas Drive North Minneapolis, Minnesota 55422-4386 In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9. International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A. - Page 3 SERIES 72 MODUTROL IV™ MOTORS TOP VIEW TOP VIEW OF BRACKET 4-7/8 4-1/4 (124) (107) 4-5/8 5-13/16 (116) (148) 5-1/2 2-5/16 (140) (58) 11/16 (17) POWER END 13/16 (20) 1/4 (7) 4-1/16 (103) 1-1/2 (37) 4-7/8 (124) 4-1/16 (103) 5-9/16 (141) 4-1/16 (103) 1-1/2 (37) WIRING...
- Page 4 P.O. Box 471650 Electrically Normally Open: Both spring return and non-spring Tulsa, OK 74147-1650 return motors return to open position on minimum signal. (Requires Honeywell 7617DM Coupling.) ® Q100 Linkage connects Modutrol Motor to V51 Butterfly Ambient Temperature Ratings: -40 to 150°F (-40 to 66°C).
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Page 5: Installation
SERIES 72 MODUTROL IV™ MOTORS INSTALLATION When Installing this Product... Mounting 1. Read these instructions carefully. Failure to follow them Use the following guidelines for proper motor mounting: could damage the product or cause a hazardous • Always install motors with the crankshaft horizontal. condition. - Page 6 SERIES 72 MODUTROL IV™ MOTORS Adapter Bracket Damper Linkages The 220738A Adapter Bracket, positioned between the motor The motor does not include a crank arm. Order the crank arm and the equipment, raises motor shaft height by 0.75 in. separately (see Accessories in the Specifications section). For ®...
- Page 7 SERIES 72 MODUTROL IV™ MOTORS STANDARD BOLTS (4) BOLTS PROVIDED (4) WIRING MOTOR ADAPTER BRACKET EQUIPMENT BASE No. 12 OR 1/4 in. ZINC PLATED MACHINE SCREWS OR BOLTS SPRING RETURN NON-SPRING RETURN M452E Fig. 3. Mounting the motor with an adapter bracket. WIRING POWER MOTOR...
- Page 8 SERIES 72 MODUTROL IV™ MOTORS Wiring 3. Fig. 5 shows that motor terminals are quick-connects CAUTION located on top of the printed circuit board. 4. To access the wiring compartment: Electrical Shock or Equipment Damage Hazard. a. Remove the four screws from the junction box top. Can shock individuals or short equipment circuitry.
- Page 9 SERIES 72 MODUTROL IV™ MOTORS – MOTOR (HOT) CONTROLLER BRAKE CIRCUITRY ELECTRONIC CIRCUIT (HOT) TRIAC TRIAC SWITCHING SWITCHING POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQURED. CONNECTING F TO – WILL DRIVE MOTOR TO FULLY OPEN. FEEDBACK M5778 POTENTIOMETER Fig.
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Page 10: Settings And Adjustments
SERIES 72 MODUTROL IV™ MOTORS SETTINGS AND ADJUSTMENTS Zero and Span Adjustment for M7284Q and Auxiliary Switches M7285Q Motors (Fig. 5.) 1. Adjust the start potentiometer fully clockwise (maximum CAUTION zero) and the span potentiometer fully counterclockwise (minimum span). Electrical Shock or Equipment Damage Hazard. 2. - Page 11 SERIES 72 MODUTROL IV™ MOTORS Auxiliary Switch Adjustment IMPORTANT 6. For a switch differential of 10° rotate the cam When adjusting the auxiliary switch cams use the approximately 180° so the slow-rise portion of the following procedure: cam actuates the switch. 1.Insert 1/8 in.
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Page 12: Operation And Checkout
• The motor responds properly as the input is varied. • The auxiliary switch, if used, operates at the desired point of motor rotation. Home and Building Control Home and Building Control Honeywell Asia Pacific Inc. Honeywell Europe S.A. Honeywell Latin American Region Honeywell Honeywell Limited-Honeywell Limitée...