Spare Parts; Table 28 Maintenance Schedule - Emerson Liebert CRV User Manual

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.
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.).
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.
Table 28 Maintenance schedule
Check unit display for clogged-filter warning
Check for irregular noise from unit fans
Check for irregular noise from compressor (if
General
applicable)
Check for irregular noise from remote
condenser fan(s) (if applicable)
Check state of filters
Filters Replace air filter if necessary
Check filter switch functionality
Verify impellers move freely
Check bearings
Blowers
Check motor mounts for tightness
Check fan safety switch
Check condition of contacts
Check electrical connections
Electrical/Electronics
Check operation of controller
Check unit operation sequence
Check cylinder and pan
Steam-Generating
Check condition of steam hoses
Humidifier
Verify filling solenoid valve is operating properly
Check circuit for leakage/general condition
Check water (glycol) inlet temperature
Cooling Water Circuit
(Water/Glycol and Check water regulating valve operation
Chilled Water Units)
Check in/out water (glycol)
Check mixture glycol level (if applicable)
® ™
Liebert CRV
Component
Δ
t
Monthly
By User
X
X
X
X
108
Maintenance
Maintenance Period
Every Every
3 Months 6 Months Annually
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X