LG UU49WH.U31 User Manual download pdf (Page 7)

Installation of Outdoor Unit

• When installing the branch pipe, direction and angle of installation is not limited.

• Take care so that burrs and foreign material may not enter into the cutting surface when

connecting.

• Connect remaining those by cutting or direct insertion to the diameter of pipe.

■ Synchro Operation

Install the branch pipe so that pipe length and difference between high and low will not exceed

below Spec.

[Unit : m]

Branch

Remote

Controller

Pipe Length & Height

Total(L1+L2+L3+L4+L5)

Main Pipe(L1)

Branch Pipe (L2+L3+L4+L5)

Each

Indoor-Outdoor (H1)

Indoor-Indoor (H2)

(L1+L2),(L1+L3),(L1+L4),(L1+L5)

Spec(MAX.)

Installation Manual 7

ENGLISH

■ Refrigerant Additional Charging Method

For additional charging method, see below table.

Indoor Unit Refrigerant Additional charging (g)

Duo

Trio

Quartet

Refrigerant = (L1-b) x B + (L2 + L3) x C

Refrigerant = (L1-b) x B + (L2 + L3 + L4) x C

Refrigerant = (L1-b) x B + (L2 + L3 + L4 + L5) x C

(g/m)

Pipe Diameter.

(mm)

Ø 6.35

Ø 9.52

(m)

Model

UU36WH/UU37WH

UU42WH/UU43WH

UU48WH/UU49WH

(g/m)

7.5 40

b : Rated performance for refrigerant line length.

C : Additional charging Refrigerant of Branch Liquid Pipe.

B : Additional charging Refrigerant of Main Liquid Pipe.

NOTICE

CAUTION:

• Capacity is based on standard length and maximum allowance length is on the

basis of reliability.

• Improper refrigerant charge may result in abnormal cycle.

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LG UU49WH.U31 User Manual Page 7

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