Emerson Liebert CRV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 C R 0 2 0 R A 1 C 7 S D 1 8 1 1 E L 1 0 P A - Manual (Page 116)

Maintenance
Liebert ® CRV ™ 108
14.2 Spare Parts
Only original spare parts made by Emerson Network Power may be used. Using third-party material
can invalidate the warranty. When making seeking technical assistance, always refer to the
component list supplied with the equipment, and specify the model number, serial number and, if
available, the part number.
14.3 Maintenance Schedule
Conduct monthly, quarterly, biannual and annual checks according to the following guidelines.
All tasks and time periods listed here are the manufacturers’ regulations and must be documented in
an inspection report.
NOTE
1. When replacing a faulty component, follow the relevant manufacturer instructions.
2. When the spare parts must be brazed, be careful not to damage the internal parts (gaskets,
seals, O-rings, etc.).
Table 28 Maintenance schedule
Component
Maintenance Period
Monthly
By User
Every
3 Months
Every
6 Months Annually
General
Check unit display for clogged-filter warning X
Check for irregular noise from unit fans X
Check for irregular noise from compressor (if
applicable)
X
Check for irregular noise from remote
condenser fan(s) (if applicable)
X
Filters
Check state of filters X
Replace air filter if necessary X
Check filter switch functionality X
Blowers
Verify impellers move freely X
Check bearings X
Check motor mounts for tightness X
Check fan safety switch X
Electrical/Electronics
Check condition of contacts X
Check electrical connections X
Check operation of controller X
Check unit operation sequence X
Steam-Generating
Humidifier
Check cylinder and pan X
Check condition of steam hoses X
Verify filling solenoid valve is operating properly X
Cooling Water Circuit
(Water/Glycol and
Chilled Water Units)
Check circuit for leakage/general condition X
Check water (glycol) inlet temperature X
Check water regulating valve operation X
Check in/out water (glycol) Δ t X
Check mixture glycol level (if applicable) X