Daikin RTSQ20PY1 Service Manual page 432

Precautions for New Refrigerant (R-410A)
• Temperature scale indicates the relationship between pressure and temperature in gas
• Change in pressure
• Change in service port diameter
7. Charge hose for R-410A
• Working pressure 5.08 MPa (51.8 kg/cm
• Rupture pressure 25.4 MPa (259 kg/cm
• Available with and without hand-operate valve that prevents refrigerant from outflow.
• Pressure proof hose
• Change in service port diameter
• Use of nylon coated material for HFC resistance
8. Charging cylinder
• Use weigher for refrigerant charge listed below to charge directly from refrigerant cylinder.
• The cylinder can not be used for mixed refrigerant since mixing ratio is changed during
421
saturated state.
Differences
Specifications
Differences
Specifications
Differences
charging.
When R-410A is charged in liquid state using charging cylinder, foaming phenomenon is
generated inside charging cylinder.
(Hose with ball valve)
2
)
2
)
Can not be used
Precautions for New Refrigerant (R-410A)
SiBE31-801_C