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Installation and maintenance instructions EASICOM 3 0020238426_04
13.6.8 Replacing the PCB for the user interface
B
C
C
D
A
A
1.
Open the electronics box.
2.
Pull the plug out of the PCB.
3.
Undo the clips on the PCB.
4.
Remove the PCB.
5.
Install the new PCB in such a way that it clicks into the
groove at the bottom and into the clip at the top.
6.
Plug in the PCB plug.
7.
Close the electronics box.
13.6.9 Replacing the expansion relief valve
1
2
1.
Remove the clip
(2)
.
2.
Remove the expansion relief valve.
3.
Fit the new expansion relief valve with a new O-ring.
4.
Reattach the clip
(2)
.
13.6.10 Replace the pressure sensor
1
2
1.
Pull out the plug.
2.
Remove the clip
(1)
.
3.
Remove the pressure sensor
(2)
.
4.
Install the new pressure sensor.
5.
Reattach the clip
(1)
.
13.7
Checking the product for leak-tightness
▶
Check that the product is leak-tight. (
14 Decommissioning the product
▶
Decommission the product.
▶
Disconnect the product from the power grid.
▶
Close the gas stopcock.
▶
Close the cold-water stopcock.
▶
Drain the product. (
15 Recycling and disposal
Disposing of the packaging
▶
Dispose of the packaging correctly.
▶
Observe all relevant regulations.
▶
For detailed information refer to www.vaillant.co.uk.