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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.
Pipe thickness
mm
inch
12.7
1/2
19.05
3/4
25.4
1
31.8
1 1/4
Tensile stress
Conduction rate
(kN)
(kgf)
(kN)
3.5
350
2.5
12
1200
2.5
11.2
1120
14.5
1450
6.5
Heat source water outlet
Heat source water
pipe 3 connection hole
Heat source water inlet
Bending momentum
(kgf)
(N .m)
250
20
250
20
4
400
45
650
87.5
Installation
Torque
(kgf .m)
(Nm)
(kgf .m)
2
35
3.5
2
115
11.5
4.5
155
15.5
8.75
265
26.5
Manuel d'installation 17
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Table des Matières
