Maintaining the electrical system
71
6. Before closing the cover plate, check the condition of the seal. Replace
with a new one (P/N 20600020) if the seal is torn, cracked or brittle.
7. To close, insert the Allen screws through all holes in the cover and seal.
Place the cover firmly against the body. Adjust the straight sides of the
seal so that they stick out a little, just enough so that you can feel the
seal when you run a finger across the joint.
8. Cross-tighten the cover screws evenly and gradually to a torque of 2 Nm
(1.5 ft.-lbs.). At this torque, the seal will be compressed by about one-
third.
Changing the power settings
Warning!
The fixture’s voltage and frequency settings must match the
local AC power source!
The factory-set power supply tappings are printed on the serial number label
on the back plate. Operating at the incorrect power setting can result in poor
light output, greatly reduced lamp life, overheating and damage to the
fixture. If the setting does not match your local AC voltage and frequency,
then the power supply must be retapped as described in:
• “Adjusting power (on models other than 277 volts)” below, or
• “Adjusting power on 277 volt models” on page 73.
Warning!
The fixture’s power supply must be rewired by a qualified
installer or technician.
Adjusting power (on models other than 277 volts)
This procedure applies to all models
except
those factory wired for 277 V
supply (see the serial number label on the fixture). If the Exterior 600 model
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