Water Pipe Connection - LG MULTI V WATER IV ARWN080LAS4 Engineering Product Data Book

MULTI V Water IV
6. Installation

2. Water pipe connection

• The water pipe should be the same size of the connection on the product or more.
• If necessary install the insulation material in the water pipe inlet/outlet to prevent water drop, freeze and to
save energy. (Use the above 20mm thickness Pe insulation material.)
• Tightly connect the socket to the water pipe refer to below table for recommended specification.
(Too much torque may cause the damage of the facility.)
Pipe thickness
mm inch
12.7 1/2
19.05 3/4
25.4 1
31.8 11/4
38.1 11/2
50.8 2
Heat Pump
Shear stress Tensile stress
(kN) (kgf) (kN)
3.5 350 2.5
12 1,200 2.5
11.2 1,120
14.5 1,450 6.5
16.5 1,700 9.5
21.5 2,200 13.5
Bending moment
(kgf) (N.m)
250 20
250 20
4 400 45
650 87.5
950 155
1,400 255
Water pipe outlet
Water pipe
connection
Water pipe inlet
Installation of Outside Units
Torque
(kgf.m) (N.m) (kgf.m)
2 35 3.5
2 115 11.5
4.5 155 15.5
8.75 265 26.5
16 350 35.5
26 600 61
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