LiftMaster GH GH LOGIC VERSION 1 Manual - Page 2

Specifications, Mechanical, Safety, Motor, Electrical, Weights And Dimensions - 1 2 hp

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SPECIFICATIONS MOTOR TYPE Continuous duty HORSEPOWER 1/2, 3/4, 1, 1-1/2 Hp Single or Three phase 2 HP Three phase SPEED 1725 RPM VOLTAGE 115-230 Single phase 230 Three phase CURRENT See motor nameplate ELECTRICAL CURRENT VOLTAGE:.....5V dc AUXILIARY VOLTAGE: ...24V dc CONTROL STATION: .....NEMA 1 three button station. OPEN/CLOSE/STOP WIRING TYPE C2 (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, Pg. 14) LIMIT ADJUST Linear driven, fully adjustable screw type cams. Adjustable to 30 feet. MECHANICAL DRIVE REDUCTION 40:1 Reduction Heavy duty bronze worm gear reducer OUTPUT SHAFT SPEED: .....43 R.P.M. DOOR SPEED 4 - 10" per sec. depending on door BRAKE Solenoid actuated disc brake HOIST WHEEL Standard mounting on left or right side SAFETY DISCONNECT Floor level chain hoist with electrical interlock for emergency manual door operation CLUTCH: (optional)....Adjustable torque limiter 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. WEIGHTS AND DIMENSIONS HANGING WEIGHT: .........80-110 LBS. 14.00" A Y See Note #2 B See Note #1 X C Hand Chain Wheel HP PHASE A 1/2 1 11-1/2 3/4 1 12-1/2 D 1 1 12-3/4 1-1/2 1 12-3/4 Y 1/2 3 11 3/4 3 11 1 3 12 1-1/2 3 12-1/2 See 2 Note #3 3 3 12-3/4 3 13-1/4 DIMENSIONS B C D 25-3/4 12-63/64 3 26-3/4 12-63/64 3 27 12-63/64 3 27 13-63/64 3-1/2 25-1/4 12-63/64 3 25-1/4 12-63/64 3 26-1/4 12-63/64 3 26-3/4 13-63/64 3-1/2 27 13-63/64 3-1/2 28-5/8 15-15/64 3 NOTES: 1) Output Shaft with 1" x 1/4" Key for 1/2 thru 2Hp operators, 1-1/4" x 1/4" Key for 3Hp operators. 2) MT'G CENTERS: X = 4-3/4"; Y = 5-1/2" for 1/2 thru 2Hp operators X = 7-17/32"; Y = 9-1/16" for 3Hp operators 3) Hand Chain Wheel extends 1-5/8" beyond operator in vertical mounting position as shown. 2

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2
SPECIFICATIONS
MECHANICAL
DRIVE REDUCTION:
.............
40:1 Reduction
Heavy duty bronze worm
gear reducer
OUTPUT SHAFT SPEED:
.....
43 R.P.M.
DOOR SPEED:
......................
4 - 10" per sec.
depending on door
BRAKE:
.................................
Solenoid actuated disc
brake
HOIST WHEEL:
.....................
Standard mounting on
left or right side
SAFETY
DISCONNECT:
.............
Floor level chain hoist with elect-
rical interlock for emergency manual door operation
CLUTCH:
(optional)
....
Adjustable torque limiter 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.
MOTOR
TYPE:
.................................
Continuous duty
HORSEPOWER:
................
1/2, 3/4, 1, 1-1/2 Hp
Single or Three phase
2 HP Three phase
SPEED:
...............................
1725 RPM
VOLTAGE:
.........................
115-230 Single phase
230 Three phase
CURRENT:
.........................
See motor nameplate
ELECTRICAL
CURRENT VOLTAGE:
.....
5V dc
AUXILIARY VOLTAGE:
...24V dc
CONTROL STATION:
.....
NEMA 1 three button station.
OPEN/CLOSE/STOP
WIRING TYPE:
.................
C2 (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, Pg. 14)
LIMIT ADJUST:
................
Linear driven, fully
adjustable screw type cams. Adjustable to 30 feet.
14.00
”
WEIGHTS AND DIMENSIONS
HANGING WEIGHT:
.........
80-110 LBS.
Hand Chain Wheel
See
Note #1
See
Note #2
A
X
B
Y
C
D
Y
See
Note #3
A
11-1/2
12-1/2
12-3/4
12-3/4
11
11
12
12-1/2
12-3/4
13-1/4
B
25-3/4
26-3/4
27
27
25-1/4
25-1/4
26-1/4
26-3/4
27
28-5/8
C
12-63/64
12-63/64
12-63/64
13-63/64
12-63/64
12-63/64
12-63/64
13-63/64
13-63/64
15-15/64
D
3
3
3
3-1/2
3
3
3
3-1/2
3-1/2
3
1/2
3/4
1
1-1/2
1/2
3/4
1
1-1/2
2
3
1
1
1
1
3
3
3
3
3
3
HP
DIMENSIONS
NOTES:
1) Output Shaft with 1” x 1/4” Key for 1/2 thru 2Hp operators, 1-1/4” x 1/4” Key for 3Hp operators.
2)
MT’G CENTERS:
X = 4-3/4”;
Y = 5-1/2” for 1/2 thru 2Hp operators
X = 7-17/32”;
Y = 9-1/16” for 3Hp operators
3)
Hand Chain Wheel extends 1-5/8” beyond operator in vertical mounting position as shown.
PHASE