1
63-2202—3
CONTENTS
Specifications ................................................. 2
Ordering Information ..................................... 2
Installation ..................................................... 4
Settings and Adjustments .............................. 10
Operation and Checkout .............................. 11
G. R. • Rev. 8-93 • ©Honeywell Inc. 1993 • Form Number 63-2202—3
The M72XX series Modutrol IV Motors are
used to control dampers and valves. The mo-
tors accept a current or voltage signal from an
electronic controller to position a damper or
valve at any point between open and closed.
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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 per-
formance 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 termi-
nal adapter available.
■
Adapter bracket for matching shaft height of older
motors is standard with replacement motors.
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Nominal timing of 30 seconds for 90
°
stroke and
60 seconds for 160
°
stroke.
■
Valve and damper linkages, explosion proof hous-
ing, 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 magnesium housing.
M7261, M7272, M7274, M7281,
M7282, M7284, M7285, M7286,
M7294 Modutrol IV Motors
