Hussmann arl サービスマニュアル

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6. Route harness wiring up in
the mullion to top frame and
then within the top frame to the
wireway.
Important: Arrange all wiring
carefully to prevent damage
when replacing the cover.
Avoid the grounding screw. 
Use electrical tape or tie-wraps
as necessary to control wiring.
Do not force wiring.
Sensor Control Box
7. The control box is mounted
to the ballast tray with #8 x 
3
/
8
sheetmetal screws. 
8. Connect the sensor harness
to the control box as shown.
Door Heater Harness
9. Connect the insulated male
connectors of the door heater
harness to the sensor control
box. Pins are marked on the
outside of the control box.
Power Connection
10. Connect the insulated male
connectors for line power and
neutral to the sensor control
box. Pins are marked on the
outside of the control box.
P/N 2402799_A
®
4
U.S. & Canada 1-800-922-1919 • Mexico 1-800-522-1900 • WWW.HUSSMANN.COM
Control Board
LED
LED
Connection
Identification
Sensor Control Box
Top of Frame
Grounding Screw
Mullion Edges