Entrematic Canada Inc.
Toll Free: 1-877-348-6837
info.ditec.ca@entrematic.com
www.ditecentrematic.ca
Entrematic USA Inc.
Toll Free: 1-866-901-4284
info.ditec.us@entrematic.com
www.ditecentrematic.us
1.7 How HA9 Works
The low energy swing door operator HA9 uses a motor and a gear-reduction system to drive an arm system, which opens
the door. Closing power is provided by a motor and a clock spring. An electronic control unit uses a motor encoder and a
microprocessor to control the door’s movement.
Opening
When an opening signal is received by the control unit, the door is opened at the operator-adjusted opening speed. Before
the door is fully open at back check, it slows automatically to low speed. The motor stops when the selected door opening
angle has been reached. The open position is held by the motor. If the door is obstructed while opening, it will either stall or
stop which can be selected with a DIP switch (SOS).
• When stalling - the door will continue to try to open during the hold open time.
• When stopping - the door will, even if hold open time has not expired, close after 2 seconds.
Closing
When the hold open time has elapsed, the operator will close the door automatically, using spring force and motor. The door
will slow to low speed at latch check before it reaches the fully closed position. The door is kept closed by spring power or
extended closing force by the motor.
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