Xylem IM167 R8 Aquavar CPC (Centrifugal Pump Control) - Manual (Page 122)

122
WARNING! Read “Safety” on page 7 before performing any maintenance on
the equipment. Ignoring the safety instructions can cause injury or death.
Maintenance Intervals
If installed in an appropriate environment, the drive requires very little maintenance. This table
lists the routine maintenance intervals recommended by CentriPro.
Maintenance Interval Instruction
Heatsink Temperature Depends on the dustiness of the See “Heatsink” on page 122
Check and Cleaning environment (every 6…12 months).
Main Cooling Every five years See “Main Fan Replacement”
Fan Replacement on pages 122, 123, 126 and 127
Internal Enclosure Every three years See “Internal Enclosure Fan
Cooling Fan Replacement Replacement” on page 123
(IP 54/UL Type 12 units)
Capacitor Change Every ten years See “Capacitors” on page 124
(Frame size R5 and R6)
Replace Battery in Advanced Every ten years See “Battery” on page 124
Control Panel
Heatsink
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, 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” below)
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.
Note: 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
Main Fan Replacement
The drive’s main cooling fan has a life span of about 60,000 operating hours at maximum
rated operating temperature and drive load. The expected life span doubles for each 10º C
(18º F) drop in the fan temperature (fan temperature is a function of ambient temperatures
and drive loads).
Fan failure can be predicted by the increasing noise from fan bearings and the gradual rise
in the heatsink temperature in spite of heatsink cleaning. If the drive is operated in a critical
part of a process, fan replacement is recommended once these symptoms start appearing.
Replacement fans are available from the factory. Do not use other than factory specified spare
parts.
MAINTENANCE
(Frame Sizes R1-R6)