Ordinary Maintenance - Trane CXAO Installation Operation & Maintenance

Ordinary Maintenance

7.8 Ordinary Maintenance
Programmed maintenance
Activities list
General:
Data collection operation (Note 3)
Visually inspect the unit for any damage and / or
looseness
Verifying the integrity of the thermal insulation
Clean and paint where needed
Water Analysis (6)
Electric:
Check the correct operation of the equipment on the
unit
Check the wear of contactors - Replace if necessary
Check tightness of all electrical terminals - Tighten if
necessary
Clean the inside of the electrical panel
Visual inspection of the components for signs of
overheating
Check the operation of the compressor and the electric
resistance
Measurement using a Megger insulation of the
compressor motor
Refrigerant circuit:
Perform a test of refrigerant leaks
Check through the sight glass coolant fl ow - Full
Indicator
Check the pressure drop of the fi lter drier
Check the pressure drop of the oil fi lter (Note 5)
Carry out the analysis of the vibrations of the
compressor
Carry out the analysis of the acidity of the oil of the
compressor (7)
Condensing section:
Cleaning the condenser coils (Note 4)
Check that the fans are tightened
Check the fi ns of coils - Control if necessary on regular
intervals.
Notes:
1) The monthly activities include all those weekly
2) The annual activity (or earlier in the season), include all activities weekly and monthly
3) The values of the unit should be recorded each day for a high level of observation.
4) The coil cleaning may be required more frequently in areas with a high percentage of particles in the air.
5) Replace the oil fi lter when its pressure drop reaches 2.0 bar
6) Check for dissolved metals
7) TAN (Total Acid Number):  0.10: No action
From 0.10 to 0.19: After 1000 hours of operation replace fi lters. Continue to replace the fi lters until the TAN not falls
below 0.10.
> 12:19: Changing the oil, oil fi lter and the fi lter drier, Refer to regular intervals
54
Week Month (1)
X
X
X
X
X
X
X
X
Year (2)
X
X
X
X
X
X
X
X
X
X
X
X
X
RF-SVX003A-GB