Emerson Chilled Water Series User Manual page 89

82 Chapter 8 Failure Diagnosis and Troubleshooting
Attached table 2: Table of equipment maintenance inspection items (semi-annual)
Date
Equipment model:
Filter
___ 1. Check whether the filter is damaged or
blocked.
___ 2. Check the filter block switch.
___ 3. Clean the filter.
Fan
___ 1. Whether there is deformation on the fan
blades.
___ 2. Whether there is bearing wear (For
forward fan).
___ 3. Belt tightness and its state (For forward
fan).
___ 4. Check and fasten the circuit connector
(For forward fan).
5. Whether fan and inlet ring are fixed firmly
(For backward EC fan).
___ 6. Whether blades scratch the adjacent
metal plate (For backward EC fan)
Chilled water coil
___ 1. Clean water pipe system.
___ 2. Check whether there is leakage in water
system.
Signature
Note: Please copy this table as an archive record
Liebert.PEX Chilled Water Series Air Conditioner User Manual
Prepared by:
Serial No.:
Heating system
___ 1. Examine the operation of re-heating
system components.
___ 2. Check the component corrosion status.
___ 3. Check and fasten the circuit connector.
Infrared humidifier
___ 1. Check whether there is block on water
tray drain
___ 2. Examine the quartz lamp of the
humidifier.
___ 3. Examine water tray mineral deposits.
___ 4. Check and fasten the circuit connector.
Electric control
___ 1. Examine the fuse and circuit breaker.
___ 2. Check and fasten the circuit connector.
___ 3. Check the control procedure.
___ 4. Check whether the contactor can pull on
or not.