Motor:
Continuous-duty, high starting torque
motor with instant reverse and overload protection.
Available in 1/3 and 1/2 HP; single or three phase.
Capacitor start on single phase. Motor removable without
affecting limit switch settings.
Door Lock Sensor:
The adjustable Door Lock Sensor can detect
if the door is engaged and will stop the operator
eliminating jamming and damage to the door or operator.
There is no longer any need for wiring guide-mounted
interlocks.
Drive Reduction:
First stage heavy-duty 5L V-belt; second
and third stages #48 chain; #50 drive chain.
Emergency Manual
Operation: Model sears
garage door opener part DH
provides easy emergency manual operation using an
electrically interlocked floor level disconnect and chain
hoist mechanism.
Wiring Type:
D1, D, C2 and B2 wiring types are all
available. D1 wiring is standard and is pre-wired to accept
a photoelectric control, sensing edge, radio controls and
most types of access control devices.
Positive Locking
Mechanical Brake System:
Efficient self-locking mechanical reduction system that
functions as a holding brake.
Friction Clutch:
Adjustable friction clutch helps protect
against major damage to door and operator should the door
meet an obstruction.
Pushbutton Station:
2-button station for OPEN/CLOSE functions
is standard with D and D1 wiring. 3-button station is
standard with B2 or C2 wiring.
Control Circuit:
24V NEC Class 2.
External Radio
Control Terminal: External
terminals provide quick, convenient connections for radio
controls.
Construction: NEMA 1 type
electrical box, heavy-duty 11-gauge steel frame with durable
baked-on powder coat finish, all reduction sprockets drilled
and pinned to shafts.
Bearings:
Industrial ball bearings on a 1" output
shaft; heavy-duty, oil filled iron bearings on reduction
shafts.
Control Accessories
and Options
2 Position Keylock:
(flushmount) Ideal for use with the DH
Operator. Provides OPEN/CLOSE operation with spring to
center (sears garage door opener part Model 02109).
Sensing Edge:
Designed to sense an obstruction and
signal door operator to stop or reverse as desired. Either
an electric or pneumatic sensing device can be added to
bottom edge of door. Requires D1, C2 or B2 wiring type.
Brake: Heavy-duty solenoid
actuated brake standard on 3/4 HP and higher.
Radio Control:
Universal transmitters and receivers are
available to signal the operator to open and/or close dood.
Requires C2 or B2 wiring type.
CPS® Commercial Protector System: (Recommended) An
inexpensive "non-contact" photo safety sensor designed to
sense an obstruction and signal the door operator to reverse
to open.
Safety of a
non-contact infrared reversing sensor
Fast and
easy-to-install
Patented
electrical interface monitors system status at all times
