Haier 1UH071N1ERG [146/238] Smart power

144

Smart Power

7.7.3 Complete recharging

NOTICE

WARNING

Before recharging, make sure to execute vacuum drying of the internal piping of the unit as well. To do so, use the

internal service port of the unit. Do not use the service ports located on the stop valve, since vacuum drying can not

be performed properly from these ports.

Outdoor units have 1 port on the piping. It is between the heat exchanger and the 4-way valve.

In case complete recharging is required (after a leak, etc.) , refer to teh information below to determine the

necessary amount of refrigerant.

Some sections of the refrigerant circuit may be isolated from other sections caused by components with specic

functions (e.g. valves) . The refrigerant circuit therefore features additional service ports for vacuuming, pressure

relief or pressurizing the circuit. In case it is required to perform brazing on the unit, ensure that there is no pressure

remaining inside the unit. Internal pressures need to be released with ALL the service ports indicated on the gures

below opened. The location is depending on mode type.

7.7.4 Total charging weight of the refrigerant (after a leak, etc.)

The total charging amounts relate to the refrigerant piping length as in "Maximum total one-way piping length" of

the table in paragraph "8.4. Allowable pipe length and height difference" on page 8. (E.g. twin: L1+L2)/

Model

Refrigerant piping length (liquid side)

5-10m

(a)

10-20m 20-30m 30-40m 40-50m 50-60m 60-70m 70-75m

1UH071N1ERG

1UH090N1ERG

2.5 2.5 2.5 2.95 3.4 - - -

1UH105N1ERG 2.5 2.5 2.5 2.95 3.4 3.85 - -

1UH125P1ERG

1UH125P1ERK

1UH140P1ERG

1UH140P1ERK

1UH160P1ERG

3.7 3.7 3.7 4.15 4.6 5.05 5.5 5.95

1UH200W1ERK

1UH250W1ERK

6.35 6.35 6.35 7.35 8.35 9.35 10.35 11.35