Vaillant 0010020392, Installation And Maintenance Instructions Manual

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0020230529_05 ecoFIT sustain Installation and maintenance instructions
37
13.5.8 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) .
13.5.9 Replacing the volume flow sensor
1
B
A
1. Pull out the plug.
2. Remove the volume flow sensor (1) .
3. Install the new volume flow sensor.
4. Plug in the plug.
13.5.10 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) .
13.6 Checking the product for leak-tightness
▶
Check that the product is leak-tight. (
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Page 29)
14 Decommissioning the product
▶
Switch off the product.
▶
Disconnect the product from the electrical installation.
▶
Close the gas stopcock.
▶
Close the cold-water isolation valve.
▶
Drain the product. (
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15 Recycling and disposal
Disposing of the packaging
▶
Dispose of the packaging correctly.
▶
Observe all relevant regulations.
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For detailed information refer to www.vaillant.co.uk.