Johnson Controls York AYK550, User Manual

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YORK, A Johnson Controls Company
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If installed in an appropriate environment, the drive requires very little maintenance.
This table lists the routine maintenance intervals recommended by YORK.
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The heatsink fins accumulate dust from the cooling air. Since a dusty heatsink is less
efficient at cooling the drive, overtemperature faults become more likely. In a
“normal” environment (not dusty, not clean) check the heatsink annually, in a dusty
environment check more often.
Clean the heatsink as follows (when necessary):
1. Remove power from drive.
2. Remove the cooling fan (see section “Main Fan Replacement” on page 218).
3. Blow clean compressed air (not humid) from bottom to top and simultaneously use a
vacuum cleaner at the air outlet to trap the dust.
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If there is a risk of the dust entering adjoining equipment, perform the cleaning
in another room.
4. Replace the cooling fan.
5. Restore power.
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Heatsink temperature check
and cleaning Depends on the dustiness of the
environment (every 6…12
months) See "Heatsink" on page 218.
Main cooling fan replacement Every five years See “Main Fan Replacement”
on page 219.
Capacitor change
(Frame sizes R5 and R6) Every ten years See "Capacitors" on page 220.
HVAC control panel battery
change Every ten years See “Battery” on page 220.