21
6 - START-UP
PRELIMINARY CHECKS
To check
before
starting-up the unit .
For details refer to the different manual sections.
√
Preliminary checks - Unit OFF power supply
Access in safety
Functional clearances
Air flow : free return and supply (no bypass, no stratification)
Structure integrity
Fans run freely
Unit on vibration isolators
Unit input water shut-off valves for cleaning
Vibration isolators on water connections
Expansion tank (indicative volume = 5% system content)
Cleaned system
Loaded possibile glicole so corrosion inhibitor
Under pressure system
Vented system
Refrigerant circuit visual check
Earthing connection
Power supply features
Electrical connections provided by the customer
Summary of Contents for WSAN-XIN 21
Page 44: ...44 8 MAINTENANCE SPARE PARTS SIZES 21 31 41 ...
Page 46: ...46 8 MAINTENANCE SPARE PARTS SIZES 51 71 ...
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