Specifications - Chamberlain HJ Owner's Manual

SPECIFICATIONS

TYPE: ................................Continuous Duty
HORSEPOWER: ...............1/2, 1/2, 3/4 & 1 HP
SPEED: .............................1725 RPM
VOLTAGE: ........................115/230 Single Phase
CURRENT: ........................See Motor Nameplate
MECHANICAL
DRIVE REDUCTION:
1st Reduction:..................Heavy Duty (5L) V-Belt
2nd & 3rd Reductions: ....#48 Chain and Sprockets
Output:..............................#50 Chain
OUTPUT SHAFT SPEED:.47 R.P.M.
DOOR SPEED:....................4" - 10" per sec.
BEARINGS: ......................Heavy Duty Oil-Filled
BRAKE:.............................Solenoid Drum Brake
HOIST WHEEL:.................Standard
PHYSICAL Mounting Dimensions
3-13/16 "
MOTOR
Single or Three Phase
208-230/460 Three Phase
(depending on door)
Bronze. Ball Bearings on
Output Shaft
(Optional)
17-7/8"
Max.
3"
WITH WITHOUT
DIM.
BRAKE BRAKE
16-15/16" 16-7/16"
A
B 18-9/16" 17-1/2"
ELECTRICAL
TRANSFORMER: ............24VAC
CONTROL STATION:......3 Button
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
LIMIT ADJUST: .................Linear Driven, Fully
Adjustable Screw Type Cams.
DISCONNECT:..................Spring Loaded Floor Level
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.
3/4" 8"
3-15/16"
5-1/2"
13-7/16"
8"
DIM. "A"
2
OPEN/CLOSE/STOP NEMA 1
SAFETY
Disconnect Arm
3/4"
1"
2-1/32"
DIM. "B"
22-7/8"
Max.
Brake