Daikin UAA150-ST3M - Unit Maintenance Intervals and Replacement Standards

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Unit Maintenance and Inspection
Interval and running time
Check List
After
3
months
After
6
months
After
1
years
After
2
years
After
3
years
After
4
years
After
5
years
After
6
years
After
7
years
After
8
years
After
9
years
After
10
years
After
11
years
After
12
years
After
13
years
After
14
years
After
15
years
Replacement standard
Begin-
ning
2500
5000
20000
40000
Valve
Expansion valve x can not control
the superheat )
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Replace it if any abnormal operation is
observed or can’t control the superheat during
the inspection
Solenoid valve (any abnormal
operation)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Replace it if any abnormal operation is
observed during the inspection.
Check valve
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Replace it if any abnormal operation is
observed during the inspection.
Control Box
Digital & analog control board
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Fuse
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Break
Contactor
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Replace it if any contact with the serious
corrosion or noise when
running.
Sensor & transducer
0
0
0
0
0
0
0
0
0
0
0
0
0
Replace it if remains abnormal after
corrected
High pressure switch
0
0
0
0
0
0
0
0
0
0
0
0
0
Controller alarm abnormally
Cooling fan
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Replace it if it can’t work correctly
during the inspection.
Others
Power check : Rated voltage +
10%, Interlinked voltage with
unbalanced 2% )
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Water Inspection (dirt, impurities)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Filter driers filter element (block,
absorbent)
0
0
0
0
0
0
0
0
0
0
0
0
0
The pressure drop in dry filter more than
0.5bar or the sight glass shows
yellow.
Water side freeze prevent heater
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Replace it if any insulation resistance is
abnormal during the inspection
The fastener of Compressors, fan
and motor whether loosen
(re-tight)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Pressure calibration on the
controller
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
According to the contents of the inspection items listed in the inspection, if unusual and included in the replacement standards are met replacement
• For the parts replacement, refer to the operation time and interval, whichever is earlier.
• The daily and monthly check list are operated and recorded by customer; others should be operated by Daikin serviceman.
• The customer shall bear the maintenance expenses incurred by check and replacement involved in the above table.
• If a system fault occurs because the customer fails to maintain the unit as required by the above table or maintenance is improper in the warranty period, Daikin shall not be held responsible for it.