Grieve Corporation M7164 Installation Manual
Series 71, 72, and 76
Modutrol IV™ Motors
APPLICATION
The Series 71, 72 and 76 Modutrol IV Motors are spring return
and non-spring return motors 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.
PRODUCT DATA
FEATURES
• Replaces M734H,J,; M744S,T,Y; and M745L,S,T,Y
Motors.
• M7164, M7261, M7284, and M7294 are non-spring
return motors; M7282, M7285, M7286 and M7685 are
spring return motors.
• 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.
• Most motors have field adjustable stroke (90° to 160°).
• Die-cast aluminum housing.
• Integral auxiliary switches are available factory
mounted, or can be field added.
• Nominal timing standard of 30 seconds (90° stroke),
and 60 seconds (160° stroke). Other timings available.
• Spring return motors can operate valve linkages from
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).
• All models have auxiliary switch cams.
• Fixed torque throughout the entire voltage range.
• Motors are designed for either normally open or
normally closed valves and dampers.
• 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.
Contents
Application ........................................................................ 1
Features ........................................................................... 1
Specifications ................................................................... 2
Ordering Information ........................................................ 2
Installation ........................................................................ 4
Settings and Adjustments ................................................. 7
Operation and Checkout .................................................. 10
63-2640—3
SERIES 71, 72, AND 76 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.
IMPORTANT
The specifications given in this publication do not
include normal manufacturing tolerances. Therefore,
an individual unit may not exactly match the listed
specifications. Also, this product is tested and
calibrated under closely controlled conditions and
some minor differences in performance can be
expected if those conditions are changed.
Modutrol IV Order Number Guide: See Table 3.
Dimensions: See Fig. 1.
Controller: These motors can be used with any electronic
controller that provides a stable noise-free proportional
current output as specified in Electrical Ratings, Input
Range below.
Electrical Ratings:
Power Consumption: See Table 1.
Input Range:
Current, Nonadjustable: 4 to 20 mA nominal, 25 mA
maximum.
Current, Adjustable: 4 to 20 mA adjustable, 50 mA
maximum.
Zero/Null (Motor Closed): 0.0 to 18 mA.
Span: 1.8 to 20 mA.
Voltage, Nonadjustable: 2 to 10 Vdc.
Input Impedance:
4 to 20 mA Input: 100 ohms.
2 to 10 Vdc Input: 400K ohms.
Auxiliary Switch Ratings (in Amps): See Table 2.
Stroke: Most models available with field adjustable strokes
from 90° to 160°. Stroke adjusted by means of
potentiometers located in the wiring compartment.
Dead Weight Load On Shaft: 200 lb (91 kg) on motor power
or auxiliary end; maximum combined load of 300 lb (136 kg).
Ambient Temperature Ratings: -40 to 150°F (-40 to 66°C).
Shaft: 3/8 in. (9.5 mm) square.
Motor Rotation:
Closed: Counterclockwise rotation limit as viewed from motor
power end.
Mechanically Normally Closed: Spring return. Normally closed
motors rotate to closed position on power loss.
Electrically Normally Closed: Both spring return and non-
spring motors return to closed position on minimum signal.
Table 1. Series 72 Modutrol IV Motor Power
Consumption Ratings (at 120 Vac, 50/60 Hz).
Power Consumption
Model
M7261 15 13
M7282 20 18
M7284 15 13
M7285 20 18
M7286 20 18
M7294 15 13
Table 2. Auxiliary Switch Ratings (in Amps).
One Contact
Full Load 7.2 3.6
Locked Rotor 43.2 21.6
a
40 VA pilot duty, 120/240 Vac on opposite contact.
Approvals:
Underwriters Laboratories Inc. Listed: File No. E4436; Guide
No. XAPX.
Canadian Standards Association Certified: General listed File
No. LR1620; Guide No. 400-E.
U.S. Patents: pending
Rating
a
VA Watts
120V 240V
Timing: Nominal 30 seconds for 90° stroke and 60 seconds
for 160° stroke.
ORDERING INFORMATION
When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the
TRADELINE® Catalog or price sheets for complete ordering 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 Automation and Control Products Sales Office (check white pages of your phone directory).
2. Honeywell Customer Care
1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386
In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Toronto, 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.
63-2640—3 2
SERIES 71, 72, AND 76 MODUTROL IV™ MOTORS
Table 3. Modutrol IV Motors Series 2 Version Order Number Guide.
M Motor
71 10.5 - 13.5 Vdc voltage input
72
4-20 mA or 2-10 Vdc Control
a
76 14-17 dc voltage control with minimum position capability
6 — 35 lb-in. Non-Spring Return
7 — 75 lb-in. Non-Spring Return
8 60 lb-in. Spring Return 150 lb-in. Non-Spring Return
9 — 300 lb-in. Non-Spring Return
1 Dual-ended shaft Non-Spring Return
2 Normally Closed Spring Return
4 Non-Spring Return
5 Normally Closed Spring Return
A 0 Auxiliary Switches Adjustable Stroke Normally Closed
B 1 Auxiliary Switch
C 2 Auxiliary Switches
D 0 Auxiliary Switch
a
Q
2 Auxiliary Switches Fixed Stroke
M 72 8 4 A XXXX See Catalog for Complete O.S. Number
a
Adjustable zero and span.
1/4
(7)
AUXILARY
END
3
2
4-1/16 (103)
1-1/2 (37)
4-1/16 (103)
13/16
(20)
13/16
(20)
POWER
END
1-1/2 (37)
JUNCTION
BOX
4-7/8
(124)
3/4
(19)
MOTOR
2-9/16
(66)
5-1/2
(140)
5-3/8
(137)
TOP VIEW OF BRACKET TOP VIEW
4-5/8
(116)
POWER END
1/4 (7)
6-7/16
(164)
4-7/8 (124)
5-9/16 (141)
SPRING RETURN MODEL SHOWN
FOR 60 LB-IN. SPRING RETURN MODELS 8-3/4 (222).
1
FOR NON-SPRING RETUIRN MODELS 7-5/16 (185).
2
FOR 60 LB-IN. SPRING RETURN MODELS (SHOWN).
FOR NON-SPRING RETURN MODELS.
3
2-5/16
(58)
11/16
(17)
4-1/4
(107)
5-13/16
(148)
9/16 (15)
ADAPTER
BRACKET
1
3/4
(19)
Fig. 1. Series 72 Modutrol IV Motor dimensions in inches (mm).
3 63-2640—3
M18998B
SERIES 71, 72, AND 76 MODUTROL IV™ MOTORS
Accessories:
220736A Internal Auxiliary Switch Kit; one switch.
Can be field-installed.
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.
50017460-003 Internal Transformer; 120 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.
ES650-117 Explosion-Proof Housing encloses motor for use in
explosive atmospheres. Not for use with Q5001 (or any
other valve linkages). Order separately from Nelson Enclo-
sures. To order, contact: Nelson Enclosures and Controls,
(281) 449-6271; or write to:
Nelson Enclosures and Controls
P.O. Box 471650
Tulsa, OK 74147-1650
Requires Honeywell 7617DM Coupling.
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.
M7282, M7285, M7286
VERTICAL
REFERENCE
10
90 DEGREE STROKE
90 DEGREE STROKE 160 DEGREE STROKE
FULLY CLOSED
90
FULLY OPEN
SPRING RETURN MOTORS
M7164, M7184, M7261, M7284, M7294
VERTICAL
REFERENCE
45
FULLY
CLOSED
90
FULLY
OPEN
NON-SPRING RETURN MOTORS
VERTICAL
REFERENCE
10
160 DEGREE STROKE
VERTICAL
REFERENCE
10
FULLY CLOSED
FULLY OPEN
FULLY CLOSED
160
FULLY OPEN
160
M13709
63-2640—3 4
Fig. 2. Motor shaft position at limit of rotation
(viewed from motor power end).
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