Haier hpu-36c13 用户手册

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3. Piping connection of outdoor unit.
    Connect the connecting pipe and inlet and outlet liquid pipe according to the piping
    method.

When piping is longer than 5 m, charge additional refrigerant specified in this list.

Pipe length

Refrigerant charge (g)

5m

10m

15m

20m

750

1125

375

4.Purging method

Discharge the air out of the indoor unit and the refrigerant pipe by vacuumizing
(1) Fasten all the nuts of the indoor and outdoor pipes to make these parts out of leakage.
(2) Under the condition of the complete close of the indoor and outdoor valve center (both
      liquid and gas side),dismount the repair valve cap.Vacuumizing through the charge
      mouth of the repair valve.
(3) After vacuumizing fasten the repair valve,and dismount the cap of the big and small
     stop valve,then loosen the stop valve center completely and fasten the big and small
     stop valve.

5.Extra  charging amount of the refrigerant

25m

1500

30m

1875