Daikin VRV - WII Service Manual page 303

Precautions for New Refrigerant (R-410A)
2 1/4"
2 No oil is used in pressure test of gauges.
2 Temperature scale indicates the relationship between pressure and temperature in gas
2 Change in pressure
2 Change in service port diameter
7. Charge hose for R-410A
2 Working pressure 737 psi (51.8 kg/cm
2 Rupture pressure 3685 psi (259 kg/cm
2 Available with and without hand-operate valve that prevents refrigerant from outflow.
2 Pressure proof hose
2 Change in service port diameter
2 Use of nylon coated material for HFC resistance
8. Weigher for refrigerant charge
2 High accuracy
2 Equipped with pressure-resistant sight glass to check liquid refrigerant charging.
2 A manifold with separate ports for HFCs and previous refrigerants is equipped as standard
2 Measurement is based on weight to prevent change of mixing ratio during charging.
290
→ →
5/16" (2min 2.5min)
→
For prevention of contamination
saturated state.
Differences
Specifications
Differences
Specifications
TA101A (for 10-kg cylinder) = ± 2g
TA101B (for 20-kg cylinder) = ± 5g
accessories.
Differences
(Hose with ball valve)
2
)
2
)
Precautions for New Refrigerant (R-410A)
SiUS30-604