Gree U-MATCH B Series, Manual

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U-MATCH SERIES DC INVERTER AIR CONDITIONERS SERVICE MANUAL
66
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Figure 3-2-4
Note: For the large-sized unit, it has the service port for both the gas valve and the liquid valve.
During evacuation, it is available to connect two hoses of the manifold valve assembly to two service
ports to quicken the evacuating speed.
3.1.7.2 Additional Charge
Refrigerant suitable for a piping length of 7.6m (25feet) is charged in the outdoor unit at the factory.
When the piping is longer than 7.6m (25feet), additional charging is necessary.
For the additional amount, see Table 3-2-3.
Table 3-2-3
Item
Model
Additional Refrigerant Amount for
Extra Pipe
18k 33g per 1.5m (1.2 ounce per 5 feet )
24k~48k 81g per 1.5m (2.9 ounce per 5 feet )
When the height difference between the indoor unit and outdoor unit is larger than 10m (32-4/5feet),
an oil bend should be employed for every 6m (19-2/3 feet).
Figure 3-2-5