Submittal Sheet

PRODUCT DATA
63-2640-06
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.
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 ........................................................................ 5
Settings and Adjustments ................................................. 8
Operation and Checkout .................................................. 11

Summary of content (12 pages)