11.10 Installing The Gas-Air Mixture Unit; Completing Inspection And Maintenance Work; 11.12 Checking The Product For Leak-Tightness; 12 Decommissioning The Product - Vaillant ecoFIT pure 412 Installation And Maintenance Instructions Manual

5. Clip the lower section of the condensate trap (1) into the
upper section of the condensate trap (2).

11.10 Installing the gas-air mixture unit

1. Install the burner.
2. Install two new burner seals in the burner hood.
3. Install the gas-air mixture unit.
4. Tighten the screws on the gas-air mixture unit.
–
Ideally to 7 Nm if a torque spanner is available.
5. Install the flue pipe.
6. Install the air intake pipe.
11.11 Completing inspection and maintenance
work
1. Check the gas connection pressure (gas flow pressure).
(→ Page 18)
2. Check the CO₂ content. (→ Page 22)

11.12 Checking the product for leak-tightness

▶
Check that the product is leak-tight. (→ Page 19)

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.

13 Recycling and disposal

Disposing of the packaging
▶
Dispose of the packaging correctly.
▶
Observe all relevant regulations.

14 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
0020230535_05 ecoFIT pure Installation and maintenance instructions
Decommissioning the product 12
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