79
Notes on replacing the parts
Replacement of the parts listed below requires the following procedure.
After the parts are removed, eliminate loctite on threads by applying loctite remover, apply new loctite, and then install and tight
-
en the parts to the specified tightening torques below. For details about recommended loctite and loctite remover, refer to Table
11-1, and for details about the replacement parts and their tightening torques, refer to Table 11-2.
Table 11-1
Recommended Manufacturer No.
Note
Loctite
Henkel
Loctite 5400
Apply loctite all over from the end of external thread
to the second ridge. After installing the parts, fix the
parts for at least 30 minutes
Loctite remover Henkel
Loctite 7200 Gasket Remover Spray loctite remover over sealant on the threads,
let the sealant sit until soft, and then eliminate it
with a wire brush.
Note: When using the products above, refer to the appropriate manuals that come with the individual products.
Table 11-2
Part name
*1
Recommended tightening torque [Nm]
*2
Pressure relief valve (3 bar)
15 ± 1
Pressure relief valve (5 bar)
15 ± 1
*1
For more details about the listed parts, refer to the parts catalogue.
*2
Undertightening and overtightening the parts affect water seal life. Tighten the parts to the appropriate tightening torques.
When installing the parts that are not listed above, observe the tightening torques in accordance with Table
11-3.
Always use a new O
-ring or gasket.
Table 11-3
Size [inch]
Recommended tightening torque [Nm]
Gasket
G1/4"
8 ± 1
G3/8"
15 ± 1
G1"
42 ± 2
G1-1/2"
42 ± 2
Packing
Strainer cover
40 ± 2
O-ring
Flow sensor
30 ± 2
Air vent (Automatic)
15 ± 1
Attached packing Drain cock (primary circuit)
0.25 ± 0.05
Air vent (manual)
0.25 ± 0.05
Flare joint (for water circuit parts)
35 ± 2
After the procedure is complete, ensure that no water leaks.
OCH712C
Summary of Contents for ecodan EHPX-VM2D
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