LG RCWW Operation & Maintenance Manual page 90

7. MAINTENANCE
90
• Machine operation throughout the year
1. Inspection during operation (5 times)
(1) Electricity related insulation test
(2) Operation log checking
(3) Chiller operation adjustment
2. General inspection (once)
(1) Refrigerant extraction
(2) Nitrogen gas filling
(3) Filter checking(replacement)
(4) Operation log checking
(5) Sensor inspection(replacement)
(6) Oil extraction
(7) Tightness test
(8) Electricity related insulation test
(9) Operation test between starter panel~control panel
(10) Chiller operation adjustment
3. Water quality analysis
• Analysis frequency standard
(1) Air conditioning only equipment: at the start of air conditioning x 1, during air conditioning x 1, at the completion
of air conditioning x1
(2) Machine operating throughout the year: during operation x 5, general inspection x 1
• Additional items (non-standard items)
(1) Heat exchanger cleaning
(2) Overhaul inspection(repair)
(3) Other items which are not specified in the contract