Parallel HOA1900 User manual
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①Drill holes with template attached to
the door and frame as shown. ②
Install bracket and fore arm shoe.
③④Connect main arm to the adjusting
arm, aligning main arm to be parallel
to the door.
⑤⑥Tighten hexagonal nut with door
opened to desired position.
(See detail A)
ADJUSTMENT
LOCKING NUT (A)
45°
BRACKET INSTALLATION
Install the bracket of adjusting arm above as shown in the diagram below.
INSTALLATION INSTRUCTIONS FOR PARALLEL HOA1900 HOLD-OPEN ARM (PUSH SIDE) MOUNTING
FOR LEFT HAND DOOR
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BACKCHECK CONTROL VALVE (BC) LATCH SPEED VALVE (2)
SWEEP SPEED VALVE (1)
OPTIONAL DELAYED ACTION VALVE (DA)
A
DETAIL A
Edge of door stop soffit
(top jamb of frame)
Hinges Centerline
HOA1900-INST-TPL 2022-08 1/2
ARM INSTALLATION
When installing the HOA1900 arm to the parallel arm bracket, ensure the
locking nut (A) is facing downwards as shown in the diagram below.
For detailed door closer installation instructions, please refer to the Parallel Arm
installation instructions of the DOREX 1900 door closer.
HOLD OPEN ADJUSTMENT
Open door to desired angle within the full door range. Then tighten the locking nut,
the door will hold that position when pushed to it. Pull firmly on the door to release.
DOOR CLOSER ADJUSTMENT
For instructions on how to adjust the door closer SWEEP and LATCHING speeds,
SPRING POWER or the optional BACKCHECK intensity or DELAYED-ACTION
please refer to the DOXEX 1900 door closer installation instructions.
1900 (2)
(1)(DA)
(A)
(BC)
2"
51mm
2 ³/4"
70mm
5 ⁷/8"
150mm
³/8"
10mm
3"
76mm
11 ¹/8"
282.5mm
1 ¹/8"
28.6mm
2 ⁹/16"
65mm
BRACKET
ARM SHOE
⁷/16"
11mm
Hinges side
Left Hand Door
Rotate door closer bottom shaft 45°
toward the hinges and install main
arm on the door closer top shaft.
Fix cover after adjusting the closing
speed. Adjust door closer as required,
see door closer instruction for details.
45°
INSTALLATION INSTRUCTIONS FOR PARALLEL HOA1900 HOLD-OPEN ARM (PUSH SIDE) MOUNTING
FOR RIGHT HAND DOOR
2"
51mm
2 ³/4"
70mm
5 ⁷/8"
150mm
³/8"
10mm
2 ⁹/16"
65mm
1 ¹/8"
28.6mm
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Edge of door stop soffit
(top jamb of frame)
Hinges Centerline
HOA1900-INST-TPL 2022-08 2/2
ARM INSTALLATION
When installing the HOA1900 arm to the parallel arm bracket, ensure the
locking nut (A) is facing upwards as shown in the diagram below.
For detailed door closer installation instructions, please refer to the Parallel
Arm installation instructions of the DOREX 1900 door closer.
HOLD OPEN ADJUSTMENT
Open door to desired angle within the full door range, then tighten the locking nut;
the door will hold that position when pushed to it. Pull firmly on the door to release.
DOOR CLOSER ADJUSTMENT
For instructions on how to adjust the door closer SWEEP and LATCHING speeds,
SPRING POWER or the optional BACKCHECK intensity or DELAYED-ACTION
please refer to the DOXEX 1900 door closer installation instructions.
1900
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①Drill holes with template attached to
the door and frame as shown. ②Install bracket and forearm shoe.
③Rotate door closer bottom shaft 45°
toward the hinges and install main
arm on the door closer top shaft.
④Connect main arm to the adjusting
arm, aligning main arm to be parallel
to the door.
⑤Fix cover after adjusting the closing
speed. Adjust door closer as required,
see door closer instruction for details.
⑥Tighten hexagonal nut with door
opened to desired position.
(See detail A)
BRACKET INSTALLATION
Install the bracket of adjusting arm above as shown in the diagram below.
A
DETAIL A
BACKCHECK CONTROL VALVE (BC)
3"
76mm
11 ¹/8"
282.5mm
ADJUSTMENT
LOCKING NUT (A)
(2) (1) (DA)
LATCH SPEED VALVE (2)
SWEEP SPEED VALVE (1)
OPTIONAL DELAYED ACTION VALVE (DA)
(A)
(BC)
⁷/16"
11mm
BRACKET
ARM SHOE
Hinges side
Right Hand Door
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