LG ARUN144DTE4.AWGBLUS User Manual download pdf (Page 44)

PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT

ENGLISH

WARNING

• Regulation for refrigerant leakage

: the amount of refrigerant leakage should satisfy the following equation for human safety.

If the above equation can not be satisfied, then follow the following steps.

• Selection of air conditioning system: select one of the next

- Installation of effective opening part

- Reconfirmation of Outdoor Unit capacity and piping length

- Reduction of the amount of refrigerant

- Installation of 2 or more security device (alarm for gas leakage)

• Change Indoor Unit type

installation position should be over 2m(6.56ft) from the floor (Wall mounted type → Cassette type)

• Adoption of ventilation system

: choose ordinary ventilation system or building ventilation system

• Limitation in piping work

: Prepare for earthquake and thermal stress

Liquid pipe

Gas pipe

Ⓐ Manifold Gauge

Ⓑ Low pressure side Handle

Total amount of refrigerant in the system

≤

0.44kg/m

(0.028lbs/ft

)

Volume of the room at which Indoor Unit of the least capacity is installed

WARNING

• Pipe to be vacuumed : gas pipe, liquid pipe

• If the refrigerant amount is not exact, it may not operate properly.

• If additionally bottled refrigerant amount is over 10%, condenser burst or insufficient in-

door unit performance may be caused.

Refrigerant charging

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LG ARUN144DTE4.AWGBLUS User Manual Page 44