Title: Brukermanual for Refra varmepumpe.pdf
© UAB „Refra“ S. Dariaus ir S. Gireno g. 179, LT- 02189 Vilnius, Lithuania, Tel. +370 52031020 info@refra.eu www.refra.euUSER MANUALLow pressure suction1. Unsufficient refrigerant quantity2. Contamination of the heat exchanger evaporator 3. Contamination of the filter-dryer line liquid 4. Malfunction TRV 5. Insufficient liquid flow to the evaporator6. Low liquid temperature at the outlet of the evaporator 7. Leakage evaparator1. Check refrigerant quantity on liquid line sight glass. Check for leaks. Eliminate leaks. 2. Perform chemical treatment exchanger3. Repace the filter-dryer 4. Check the value of overheating and the degree of TRV valve opening. Replace the TRV valve only if malfunction 5. Check the pressure drop of liquid in the evaporator, adjust liquid flow 6. Maximize the temperature set point 7. Refer to the manufacturer.High pressure suction1. Increased load - high temperature liquid 2. Improper operation of the compressor spool 3. Too low value of overheating