5.0 MAINTENANCE
5.1 GENERAL
As with all mechanical equipment's, a program of regular inspection, cleaning and preventive
maintenance by trained personnel will contribute greatly to a long satisfactory service life of
this equipment.
5.2 SCHEDULE OF INSPECTION AND MAINTENANCE
The following schedule is only meant to be a guide. Actual maintenance schedule for each
installation shall depend on the duty usage, the cleanliness of the surrounding environment, the
city water supply and the cleanliness of the spaced to be conditioned.
5.2.1 MONTHLY INSPECTION AND MAINTENANCE
1.) Check cooling tower water treatment system. If excessive rusting, fouling, algae
formation or contamination is clearly visible, consult the water treatment
specialist. Flush the condenser-cooling tower water circuit and apply the
appropriate water treatment.
2.) Visual inspections of cooling tower fan(s), cooling tower fan motor(s) and
drive(s), condenser water pump(s); blower(s), blower fan motor(s) and drive(s)
shaft(s) and bearing(s) for each unit. If excessive vibration or noise is noticeable,
take necessary appropriate actions to repair or remedy faults.
3.) Clean the filters and wipe down external surfaces of each WCPS-B unit.
4.) Shut down each unit; open main disconnect; inspect each control/starter panel for
loose wire, burned contacts, signs of overheated wires etc. Restart unit and check
performance of controls.
5.) Remove access panel to compressor(s); check external casing of compressor(s)
for "sweating" or "freezing"; check liquid line sight glass (or moisture indicator)
for proper refrigerant charge; touch liquid line at areas before and after the filter
drier (if the area after the filter drier is excessively cold to touch compare with
area before the filter drier, then this indicate a "choke" filter drier).
6.) Inspect and clean the condensate drain pan and assure proper condensate
drainage.
5.2.2 THREE MONTHLY INSPECTION AND MAINTENANCE
1.) Repeat monthly inspection and maintenance as in ( B ).
2.) Read and record essential system parameters and compare these readings with
initial readings recorded during commissioning; any substantial or wide variations
