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PERFORMANCE CURVE DIAGRAM
REMARKS FOR GAS PRESSURE CHECK AND CHARGING
If you find substantial diffrence in performance compared with PERFORMANCE CURVE as shown in the
following pages, recharge the refrigerant.
(In order to avoid excessive charging, purge all the remaining refrigerant first and then evacuate the unit
completely with vacuum pump and finally apply rated volume charging of refrigerant.)
Charging of refrigerant should be done by cooling operation, because the pressure at service valve will be
too high at heating cycle, then the heating performance characteristics must be checked by restarting of
heating operation.
Piping size
Max. tube length
6.35mm
Liquid side
Gas side
Max. height difference
9.52mm
10m
5m
