PHI D-4990, Manual, Page: 44 / 66

1 Hold-open time: The door must remain in the hold-open position at least 5 seconds after the loss of
opening signal detection AND after the door arrives at the full open position. The POT is adjustable from
0 to 28 seconds but the hold-open time
MUST NOT be set to less than 5 seconds . At less than 5
seconds, the door is considered to be a high energy operator and will require several safety devices and
installation by an AAADM certified technician.
2 Full open position: When the door is in hold-open position, it can be adjusted several degrees in or out
to obtain the optimum door angle (typically 90
o
).
3 Not used: N/A
4 Stall: Stall is the level at which the power opener and the hydraulic closer provide the same amount of
pressure, when the door is in hold-open. Too much stall adjustment uses a lot of extra voltage to keep
the door open. Too little stall adjustment and the door will start to creep closed.
5 Open - Check speed: This setting controls how quickly the door will move in from backcheck to full
open.
6 Open - Sweep speed: This setting will control how quickly the door moves from closed to the
backcheck zone.
7 Opening torque: If the torque setting is too low, the door will not open. If it is set too high, the door will
open with more force than is necessary and may exceed the Low Energy Operator standard.
8 Not used: N/A
9 Sequencer: The sequencer adjustment allows the technician to adjust the activation time of a second
door operator when two operators are used, such as in an outer and vestibule door arrangement.
10 Test Switch: The test switch operates the door when depressed.
POTENTIOMETERS & TEST SWITCH