Vaillant ecoFIT sustain 825, Инструкция по установке и обслуживанию

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12 Decommissioning the product
28
Installation and maintenance instructions ecoFIT sustain 0020230529_04
11.13 Draining the product
1. Close the service valves of the product.
2. Start check programme
P.05
.
Overview of the check programmes ( → Page 15)
3. Open the drain valves.
11.14 Checking the admission pressure of the
expansion vessel
1. Drain the product. ( → Page 28)
2. Measure the pre-charge pressure of the expansion ves-
sel at the vessel valve.
Condition
: Pre-charge pressure < 0.075 MPa (0.75 bar)
▶
Top up the expansion vessel in accordance with the
static height of the heating installation, ideally with ni-
trogen, otherwise with air. Ensure that the drain valve is
open when topping up.
3. If water escapes from the valve of the expansion
vessel, you must replace the expansion vessel
( → Page 23).
4. Fill and purge the heating installation. ( → Page 17)
11.15 Completing inspection and maintenance
work
12 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. ( → Page 28)
13 Customer service
To ensure regular servicing, it is strongly recommended
that arrangements are made for a Maintenance Agreement.
Please contact Vaillant Service Solutions for further details:
Telephone: 0330
100 3461
14 Recycling and disposal
Disposing of the packaging
▶
Dispose of the packaging correctly.
▶
Observe all relevant regulations.
▶
Check the gas flow pressure. (→ Page 18)
▶
Check the CO ₂ content. (→ Page 19)
▶
If required, res et the maintenance interval.
(→ Page 38)
▶
Check that the product is leak-tight. (→ Page 19)
▶
Install the front casing.
▶
Fill out the relevant Service Record section in the
Benchmark Checklist located in the rear of this
document.