Other pre - checkings
Split ODU – 6 720 817 722 (2015/06)
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9 Other pre - checkings
▶ Check blockage of refrigerant circuit
Are both check - valves completely open?
▶ Check function of fans
– Check rotation speed
– Check supply voltage
▶ Check function of water pump
– Check rotation speed
– Check supply voltage
▶ Check heat-transfer
– Clean heat-exchangers
▶ Check refrigerant charge
– Sub-cooling very high --> Overfilled
– Refill refrigerant (with gauge)
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