2
SAFETY
DISCONNECT :
Model MJ
: Floor level disconnect for emergency
manual door operation.
Model MH:
Floor level chain hoist with electrical interlock
for emergency manual door operation.
Model HMJ:
Includes both floor level disconnect systems
described above.
REVERSING EDGE:
...............(Optional) Electric or
pneumatic sensing device attached to the bottom edge
of door.
A REVERSING EDGE IS STRONGLY RECOMMENDED
FOR
ALL
COMMERCIAL OPERATOR
INSTALLATIONS.
REQUIRED
WHEN THE 3 BUTTON
CONTROL STATION IS OUT OF SIGHT OF DOOR OR
ANY OTHER CONTROL (AUTOMATIC OR MANUAL)
IS USED.
SPECIFICATIONS
ELECTRICAL
TRANSFORMER:
.............24Vac
CONTROL STATION:
......NEMA 1 3-button station.
OPEN/CLOSE/STOP
WIRING TYPE:
.................C2 (Standard)
Momentary contact to OPEN & STOP, constant
pressure to CLOSE, open override plus wiring for
sensing device to reverse. See pages 13 and 14 for
optional control settings and operating modes.
LIMIT ADJUST:
................Linear driven, fully
adjustable screw type cams. Adjustable to 24 feet.
10.88"
MOUNTING DIMENSIONS
A - Wall Mounting
B - Bracket Mounting (rolling door)
Hand Chain Wheel
present with Model
MH only.
15.78"
6.34"
6.34"
12.69"
7.00"
6.13"
3.63"
9.19"
18.50"
2.91"
7.00"
14.75"
A
A
A
A
WEIGHTS AND DIMENSIONS
HANGING WEIGHT:
.........
80-110 LBS.
MOTOR
TYPE:
.................................Intermittent duty
HORSEPOWER:
................1/2 HP
SPEED:
...............................1000 RPM
VOLTAGE:
..........................115V 1 Phase 60Hz,
230V 1 Phase 50Hz
CURRENT:
..........................See motor nameplate
MECHANICAL
DRIVE REDUCTION:
.............Primary: Heavy duty
(4L) V-Belt. Secondary: #48 chain/sprocket. Output:
#48 chain
OUTPUT SHAFT SPEED:
.....80 RPM
DOOR SPEED:
......................approx. 9" per sec.
depending on door
BRAKE (Optional):
...............Solenoid actuated disc
brake
BEARINGS:
...........................IronCopper sintered and
oil impregnated.
HAND CHAIN WHEEL:
.........Left or right handing
Models MH and HMJ
only.
Summary of Contents for HMJ
Page 22: ...22 OPERATOR NOTES...
Page 23: ...23 OPERATOR NOTES...
