Honeywell Modutrol IV M72 Series Manual Download Page 2

2

M7261,M7272,M7274,M7281,M7282,M7284,M7285,M7286,M7294

SPECIFICATIONS • ORDERING INFORMATION

Specifications

MODELS:

M7261A
M7272A
M7274A,G
M7281A,C,Q
M7282A
M7284A,C,G,Q
M7285A,C,Q
M7286G
M7294A,G,
Q

Control Type

72 is electronic

with 4 to 20 mA
or 2 to 10 Vdc

Torque
Designation

6 is low torque

(35 lb-in.)

7 is medium torque

(75 lb-in.),
non-spring
return; 25 lb-in.
spring return.

8 is high torque

(150 lb-in.),
non-spring
return; 60 lb-in.
spring return.

9 is extra-high

torque (300 lb-
in.), non-spring
return

Output Drive

is single-ended shaft, non-spring return.
is single-ended shaft, spring return, normally closed

 mechanically.

is dual-ended shaft, non spring return.
is dual-ended shaft, spring return, normally closed

 mechanically.

is dual-ended shaft, spring return, normally open

 mechanically.

Suffix Letter

A: Fixed stroke (90

°

 or 160

°

),

no auxiliary switches, elec-
trically normally closed.

C: Fixed stroke (90

°

 or 160

°

),

2 auxiliary switches, elec-
trically normally closed.

G:Fixed stroke (90

°

 or 160

°

),

no auxiliary switches, elec-
trically normally open.

Q:Fixed stroke (90

°

 or 160

°

),

2 auxiliary switches, with
adjustable start (zero)
and span, electrically
normally closed.

IMPORTANT: The specifications given in this publica-

tion do not include normal manufacturing toler-
ances. Therefore, an individual unit may not exactly
match the listed specifications. Also, this product is
tested and calibrated under closely controlled con-
ditions and some minor differences in performance
can be expected if those conditions are changed.

CONTROLLER: These motors can be used with any elec-

tronic controller that provides a stable noise-free propor-
tional current output as specified in Input Range below.

MOTOR ROTATION:

Closed: The limit of counterclockwise rotation as viewed

from the power end of the motor.

Open: The limit of clockwise rotation as viewed from

the power end of the motor.

Mechanically Normally Closed: Spring return, normally

closed motors rotate to the closed position on loss of
power.

Mechanically Normally Open: Spring return, normally

open motors rotate to the open position on loss of
power.

Electrically Normally Closed: Both spring return and

non-spring motors return to the closed position on
minimum signal.

Electrically Normally Open: Both spring return and

non-spring return motors return to the open position
on minimum signal.

STROKE: Fixed 90

°

 or 160

°

 models available. Other mod-

els available with field adjustable strokes from 90

°

 to

160

°

. Stroke adjusted by means of cams located in the

wiring compartment.

TIMING: Nominal 30 seconds for 90

°

 stroke and 60 sec-

onds for 160

°

 stroke.

DEAD WEIGHT LOAD ON SHAFT: 200 lb [90.8 kg] on

power or auxiliary end of motor; maximum combined
load of 300 lb. [134.6 kg].

AMBIENT TEMPERATURE RATINGS: -40

°

 F to +150

°

 F

[-40

°

 C to +66

°

 C].

SHAFT: 3/8 in. [9.5 mm] square.
DIMENSIONS: See Fig. 1.

Ordering Information

When purchasing replacement and modernization products from your wholesaler or distributor, refer to the price sheets for
complete ordering number, or specify—

1. Order number

If you have additional questions, need further information, or would like to comment on our products or services, please write or
phone:

1. Your local Honeywell Home and Building Control Sales Office (check white pages of your phone directory).
2. Home and Building Control Customer Satisfaction

Honeywell Inc., 1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386 (612) 951-1000

In Canada—Honeywell Limited/Limitée, 740 Ellesmere Road, Scarborough, Ontario M1P 2V9. 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.

Summary of Contents for Modutrol IV M72 Series

Page 1: ... 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 termi nal 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 l...

Page 2: ...wiserotationasviewed from the power end of the motor Open The limit of clockwise rotation as viewed from the power end of the motor MechanicallyNormallyClosed Springreturn normally closed motors rotate to the closed position on loss of power Mechanically Normally Open Spring return normally open motors rotate to the open position on loss of power Electrically Normally Closed Both spring return and...

Page 3: ...P VIEW OF BRACKET ONLY 3 93 100 4 22 107 2 3 58 64 16 67 17 4 88 124 43 11 5 54 141 27 7 5 82 148 2 POWER END 4 5 37 136 1 FOR HIGH TORQUE 60 LB IN SPRING RETURN MODELS 3 9 98 FOR LOW TORQUE 25 LB IN SPRING RETURN MODELS 3 4 85 5 FOR NON SPRING RETURN MODELS 2 4 61 2 FOR HIGH TORQUE 60 LB IN SPRING RETURN MODELS 8 76 222 5 FOR LOW TORQUE 25 LB IN SPRING RETURN MODELS 8 26 209 8 NON SPRING RETURN M...

Page 4: ...e use of an adapter bracket Ap proximately0 75in 19mm shorterthanthe7616BR Crank Arm 220741A Screw Terminal Adapter converts the stan dard quick connect terminals to screw terminals Transformers Mountedinternally provide24Vacpower to the motor 198162JA 24 Vac 50 60 Hz for electrical isolation 198162EA 120 Vac 50 60 Hz 198162GA 220 Vac 50 60 Hz 198162AA 120 208 240 Vac 50 60 Hz 4074ERU Weatherproof...

Page 5: ...he bolts through the outer set of back slots of the motor flange and into the outer threaded holes of the bracket LINKAGES Use of the 220738A Adapter Bracket packed with the motor is optional for many damper applications Use the bracket in damper applications requiring the crank arm to rotate through the bottom plane of the motor If you do not use the bracket you will have to adjust the damper lin...

Page 6: ...unting the motor with an adapter bracket M452D EQUIPMENT BASE ADAPTER BRACKET STANDARD BOLTS 4 MOTOR BOLTS PROVIDED 4 WIRING BOX POWER END POWER END NON SPRING RETURN SPRING RETURN 1 12 OR 1 4 ZINC PLATED MACHINE SCREWS OR BOLTS 1 P O W E R E N D P O W E R E N D P O W E R E N D ...

Page 7: ...LVE STANDARD BOLTS M5776 MOTOR WIRING BOX BOLTS PROVIDED 4 POWER END OF MOTOR MOTOR BOLTS PROVIDED 4 WIRING BOX POWER END OF MOTOR NON SPRING RETURN SPRING RETURN 1 2 1 12 OR 1 4 ZINC PLATED MACHINE SCREWS OR BOLTS 2 FASTEN ADAPTER BRACKET TO VALVE LINKAGE AND HAND TIGHTEN BOLTS SECURE MOTOR TO BRACKET USING FOUR BOLTS PROVIDED THEN TIGHTEN BRACKET TO LINKAGE BOLTS ...

Page 8: ...ring compartment is gained by removing the four screws on the top of the wiring box and lifting off the cover See Fig 5 for terminal locations See Fig 6 for the internal schematic Fig 7 shows connections for typical system applications Fig 8 shows parallel motor connections Fig 5 Terminals and adjustments RIGHT INNER AUXILIARY SWITCH INNER AUXILIARY SWITCH CAM BLUE POWER END OUTER AUXILIARY SWITCH...

Page 9: ...TOR MOTOR MOTOR 2 F T1 T2 2 F T1 T2 2 F T1 T2 2 When used with liquid tight conduit connectors the wiring box provides NEMA 3 weather resistance for the motor The wiring box standard with replacement motors also provides knockouts for wiring conduits and encloses terminals The wiring box is required for housing an inter nal transformer or internal auxiliary switches Wire the motor as follows 1 Rem...

Page 10: ...UST ZERO ADJUST AND SPAN ADJUST POTENTIOMETERS TO ACHIEVE DESIRED SEQUENCE 2 3 SEQUENTIAL OPERATION OF THREE M91XX MOTORS USING Q7230 M2893 AUXILIARY SWITCH SETTING PROCEDURE See Fig 10 CAUTION 1 Live circuits are exposed during the auxiliary switch adjustment procedure Always turn off the power before adjusting switch cams 2 Do not turn motor shaft by hand or with a wrenchbecausedamagetothemotorc...

Page 11: ... from the controller changes and unbalance is amplified to energize the Triac switching to run the motor in the proper direction to correct the change in the temperature or the pressure The motor turns the feedback potentiometer to rebalance the circuit and stop the motor CHECKOUT After installation and linkage adjustment operate the motor through the controller Make sure that The motor properly o...

Page 12: ...ome and Building Control Helping You Control Your World Honeywell Inc Honeywell Limited Honeywell Limitée 1985 Douglas Drive North 740 Ellesmere Road Golden Valley MN 55422 Scarborough Ontario M1P 2V9 Printed in U S A QUALITY IS KEY ...

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