Daikin Navigator WWV Installation, Operation And Maintenance Manual page 50

Figure 29: Preventative Maintenance Schedule
General
Complete unit log and review (Note 3)
Inspect unit for loose or damaged components and visible leaks
Inspect thermal insulation for integrity
Clean and paint as required
Electrical ( * including the VFDs)
Sequence test controls *
Check contactors for pitting, replace as required *
Check terminals for tightness, tighten as necessary *
Clean control panel interior *
Clean control box fan filter * (Note 7 )
Visually inspect components for signs of overheating *
Megger compressor motor
Refrigeration/Lubricant
Leak test
Check liquid line sight glasses for clear flow
Check oil sight glass for correct level (lubricant charge)
Perform compressor vibration test (optional)
Perform oil analysis test on compressor oil
Evaporator and Condenser (water-cooled)
Confirm correct water flow and pressure drop
Confirm appropriate water treatment
Clean and Leak Test tubes
Clean Flow Sensor
NOTE: 1 Monthly operations include all weekly operations.
2 Annual (or spring startup) operations include all weekly and monthly operations.
3 Log readings can be taken daily for a higher level of unit observation.
4 Replace the filter if pressure drop exceeds 20 psi.
5 The weekly fan filter cleaning schedule can be modified to meet job conditions. It is important that the filter allows full
air flow.
IOM 1264-1 • NAVIGATOR
®
Operation
MODEL WWV CHILLERS
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ysTem aInTenanCe
Monthly Annual
(Note 1) (Note 2)
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