Decommissioning the product 12
0020230533_01 ecoFIT pure Installation and maintenance instructions
27
11.12 Draining the product
1.
Close the service valves of the product.
2.
Start check programme
P.05
.
Overview of the check programmes (
→
Page 14)
3.
Open the drain valves.
11.13 Checking the admission pressure of the
expansion vessel
1.
Drain the product. (
→
Page 27)
2.
Measure the pre-charge pressure of the expansion ves-
sel at the vessel valve.
Conditions
: 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 22).
4.
Fill and purge the heating installation. (
→
Page 16)
11.14 Completing inspection and maintenance
work
1.
Check the gas connection pressure (gas flow pressure).
(
→
Page 17)
2.
Check the CO
₂
content. (
→
Page 18)
11.15 Checking the product for leak-tightness
▶
Check that the product is leak-tight. (
→
Page 18)
12 Decommissioning the product
▶
Switch off the product.
▶
Disconnect the product from the power mains.
▶
Close the gas isolator cock.
▶
Close the cold water stop valve.
▶
Drain the product. (
→
Page 27)
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
