Draining The Product - Vaillant ecoTEC plus 806 VU GB 806/5-5 Installation And Maintenance Instructions Manual

13
11
10
9
8
806/5-5
13
12
10
8
11
1006/5-5
1206/5-5
4. Connect the gas-air mixture unit (5) to the heat ex-
changer (7).
5. Tighten the screws (6) in a cross-wise pattern until the
burner door fits closely and uniformly onto the mating
surfaces.
–
Torque: 10 Nm
6. Connect the ignition line plug and the ground connec-
tion for the ignition electrodes (9) to the ignition trans-
former.
7. Connect the ionisation line plug to the ionisation elec-
trode (11) and connect the ground connection plug to
the earthing lug.
8. Connect the safety cut-out plug to the upper safety cut-
out (8).
9. Connect the plugs (12) and (13) to the fan motor.
10. Connect the plug (10) to the gas valve.
11. Connect the gas pipe (4) with a new seal to the gas
valve.
0020134823_04 ecoTEC plus Installation and maintenance instructions
Conditions: Applies for 80 kW
–
Torque: 2 Nm
Conditions: Applies for 100 kW and 120 kW
–
Torque: 2.8 Nm
12
Warning.
4
Risk of poisoning and fire caused by es-
5
caping gas!
6
Gas can escape through leaks.
▶
Check the gas tightness at the gas con-
7
nection using leak detection spray.
12. Open the gas isolator cock on the product.
Conditions: Applies for 80 kW
2
4
▶
Check that the sealing ring in the air intake pipe (2) is
positioned correctly in the seal seat.
▶
Reconnect the air intake pipe to the intake nozzle.
5
▶
Secure the air intake pipe with the clip (1) on the intake
nozzle.
6
13. Close the electronics box.
7
14. Install the front casing. (→ Page 10)
9
15. Re-establish the connection to the power mains.
9.11

Draining the product

1. Switch off the product using the on/off button.
2. Close the service valves of the product.
3. Start the check programme P.06.
4. Open the drain valves.
9.12 Completing inspection and maintenance
work
Once you have completed all maintenance work:
▶
Check the gas flow pressure. (→ Page 22)
▶
Check the CO₂ content and, if necessary, adjust it (air
index setting). (→ Page 23)
10 Troubleshooting
You can find an overview of the fault codes in the appendix.
Overview of fault codes (→ Page 42)
Troubleshooting 10
1
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