User Guide

WEIGHTS AND DIMENSIONS
POWER HEAD WEIGHT..........55 LBS.
MECHANICAL
DRIVE REDUCTION:
1st Reduction:....................Heavy Duty (4L) V-Belt
2nd Reduction:...................#48 Chain and Sprockets
Output:................................#48 Chain on 1/3 & 1/2 Hp
#41 Chain on 3/4 & 1 Hp
OUTPUT SHAFT SPEED:...144 R.P.M.
DOOR SPEED:....................11" – 13" per sec.
BEARINGS:............................Bronze Bearings on
Clutch Shaft
Ball Bearings on Output Shaft
BRAKE:...............................Optional Solenoid drum brake
Standard on 3/4 & 1Hp
Optional on 1/3 & 1/2Hp
SAFETY
DISCONNECT:..................Spring Loaded Trolley
Disconnect Arm
CLUTCH:...........................Adjustable Friction Type
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. SEE PAGE 8.
2
MOTOR
TYPE: ................................Continuous Duty
HORSEPOWER: ...............1/3, 1/2, 3/4 & 1Hp
Single or Three Phase
SPEED: .............................1725 RPM
VOLTAGE: ........................115/208-230 Single Phase
208-230 Three Phase
CURRENT:........................See Pg. 17
SPECIFICATIONS
ELECTRICAL
CONTROL VOLTAGE:......5V dc
AUXILIARY VOLTAGE: ....24V dc
CONTROL STATION:........3 Button
OPEN/CLOSE/STOP, NEMA 1
WIRING TYPE: ..................B2 (Standard)
Momentary Contact to OPEN/CLOSE/STOP plus
Wiring for Sensing Device to Reverse and Auxiliary
Devices to Open and Close with Open Override
(Other types available. See chart.)
LIMIT ADJUST: ...................Linear Driven, Fully
Adjustable Screw Type Cams. Adjustable to 22 feet.
DOOR HEIGHT + 4' - 2 3/8"
MIN. CLEARANCE OF 2"
FROM HIGH ARC OF DOOR
TO BOTTOM OF TRACK
7-1/2"
9.5"
with or
without
brake
27.4"
13"
13.75"
14.5"
9"
16.25"
with
brake
16.1"
C
L