Checking The Safety Cut-Out - Vaillant ecoCRAFT exclusive VKK GB 1206/3-E R1 Installation And Maintenance Instructions Manual

1
P2
P1
3
P3
4
2. Connect hose P1 of the combustion air pressure mon-
itor (1) to the Venturi (2).
3. Connect hose P2 of the combustion air pressure mon-
itor to the connection between the gas valve assembly
(3) and Venturi (2).
4. Ensure that the hoses of the combustion air pressure
monitor are connected to the correct connections.
5. Ensure that the hoses leading to the combustion air
pressure monitor are fully pushed onto the connections.
6. Check the hose between the gas valve assembly (3)
and supply air box (4) for dirt. Clean it by blowing
through it if required.
7. Connect hose P3 to the gas valve assembly and supply
air box.
8. Ensure that the hose is fully pushed onto the connec-
tion.
9.14

Checking the safety cut-out

1. Switch on the main switch.
2. Start check programme P.05 (→ Page 15).
◁
The internally connected heating pump is switched
off while the safety cut-out is being tested. The
check programme starts automatically and triggers
the safety cut-out after 5-8 minutes. Otherwise, the
check programme is automatically terminated after
15 minutes.
◁
The gas-fired floor-standing condensing boiler
switches off at 110 °C (tolerance −6 K).
▽
If the safety cut-out is not triggered at the latest after
eight minutes, it is defective. In this case, replace
the safety cut-out.
0020149561_01 ecoCRAFT exclusive Installation and maintenance instructions
P2
P3
P1
2
1
3. After the gas-fired floor-standing condensing boiler has
cooled down, press the pin (1) to release the safety cut-
out.
9.15 Draining the product
1. Close the service valves of the product.
2. Connect a hose to the product's filling and drainage tap.
3. Route the hose to a suitable outflow location.
4. Open the filling and drainage tap.
5. Open the automatic air vent so that the product is com-
pletely drained.
6. Once the water has drained out, close the automatic air
vent and the filling/draining cock again.
9.16 Draining the heating installation
1. Connect a hose to the filling and drainage tap in the
heating flow.
2. Route the hose to a suitable outflow location.
3. Make sure that the product's service valves are open.
4. Open the filling and drainage tap.
5. Open the purging valves on the radiators. Start from
the highest radiator and then work from the top to the
bottom.
6. Once the water has drained out, close the purging
valves of the radiators and the filling and drainage tap.
9.17 Completing inspection and maintenance
work
Once you have completed all maintenance work:
▶
Check that all control, regulation and monitoring devices
are functioning properly.
▶
Check the gas tightness of the product before each in-
stance of start-up and after each instance of inspection,
maintenance and repair.
▶
Check that there are no leaks in the product and the
air/flue pipe.
▶
Check the over-ignition and that the flame on the burner
is burning properly (diagnostics code d.44: < 250 = excel-
lent flame, > 700 no flame).
▶
Swing the electronics box up.
▶
Install the front casing. (→ Page 10)
▶
Fill out the relevant service record section in the bench-
mark checklist.
10 Troubleshooting
You can find an overview of the fault codes in the appendix.
Overview of fault codes (→ Page 38)
Troubleshooting 10
27