50 Installation and maintenance instructions 0020244997_07
13.7 Completing repair work
1. Establish the power supply.
2. Switch the product back on if this has not yet been
done. (→ Page 32)
3. Install the front casing.
4. Open all service valves and the gas stopcock.
13.8 Checking the product for leak-tightness
▶ Check that the product is leak-tight. (→ Page 38)
14 Decommissioning
14.1 Temporarily decommissioning the product
▶ Press the on/off button.
◁ The display goes out.
▶ Close the gas stopcock.
▶ For products with domestic hot water generation and
products with a connected domestic hot water cylinder,
you must also close the cold-water isolation valve.
14.2 Permanently decommissioning the product
▶ Press the on/off button.
◁ The display goes out.
▶ Disconnect the product from the power grid.
▶ Close the gas stopcock.
▶ Close the cold-water isolation valve.
▶ Drain the product. (→ Page 44)
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.
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