Installation Manual
17
ENGLISH
Installation
14.7 Heat source water pipe connection
• For the heat source water pipe (3) size, use the
same size as or larger than the pipe connecting
to the product.
• In case of danger of dew condensation, you
must install the lagging material at the heat
source water outlet pipe.
(Use polyethylene material with the thickness of
20mm for the lagging material.)
• For the connection between the heat source
water pipe and the socket, firmly tighten the
connection based on the following table.
Heat source water
pipe 3 connection hole
Heat source water outlet
Heat source water inlet
mm
inch
(kN)
(kgf)
(kN)
(kgf)
(N .m)
(kgf .m)
(Nm)
(kgf .m)
12.7
1/2
3.5
350
2.5
250
20
2
35
3.5
19.05
3/4
12
1200
2.5
250
20
2
115
11.5
25.4
1
11.2
1120
4
400
45
4.5
155
15.5
31.8
1 1/4
14.5
1450
6.5
650
87.5
8.75
265
26.5
Pipe thickness
Conduction rate
Tensile stress
Bending momentum
Torque
Summary of Contents for AKWW0363UA0
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