Service manual

ESIE09-08A Precautions for New Refrigerant (R-410A)
Precautions for New Refrigerant (R-410A) 287
 Differences
 Change in pressure
 Change in service port diameter
7. Charge hose for R-410A
 Specifications
 Working pressure 5.08 MPa (51.8 kg/cm
2
)
 Rupture pressure 25.4 MPa (259 kg/cm
2
)
 Available with and without hand-operate valve that prevents refrigerant from outflow.
 Differences
 Pressure proof hose
 Change in service port diameter
 Use of nylon coated material for HFC resistance
8. Charging cylinder
 Specifications
 Use weigher for refrigerant charge listed below to charge directly from refrigerant cylinder.
 Differences
 The cylinder can not be used for mixed refrigerant since mixing ratio is changed during charging.
When R-410A is charged in liquid state using charging cylinder, foaming phenomenon is generated
inside charging cylinder.
9. Weigher for refrigerant charge
 Specifications
 High accuracy
(Hose with ball valve)
Can not be used