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(1) Usage of refrigerant
Take fleon R22 as refrigerant, factory filling quantity is 3520g. If the length of connecting line is less than
or equal to 5m, additional refrigerant is unnecessary. If the length of connecting line is more than 5m, 50g
refrigerant shall be added for every 1 m more.
(2) System vacuum pumping
After connecting indoor and outdoor units, pump air and moisture from indoor unit and connecting line with
vacuum pump, vacuum degree of system shall be below 200Pa.
(3) Piping system diagram:
(4) Form and characteristics of compressor
Copeland CRNQ-1500-TFD-522
Piston compressor
Indoor unit Outdoor unit
Capillary tube
Heat
exchanger
Stop
valve
Stop
valve
Change valve
heat exchanger
Heating
Cooling
quieter
accumulator
compressor
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