43
A
Fig. 31
If required, top up the heating water at top-up valve
A
.
Checking all connections on the heating water and DHW sides for leaks
Danger
Risk of electric shock from escaping heating
water or DHW.
When commissioning and after carrying out
maintenance work, check all water side connec-
tions for leaks.
Venting the heating system
1.
Close the gas shut-off valve and switch the appli-
ance ON.
2.
Activate the venting program (see commissioning
assistant or following chapter).
3.
Adjust the system pressure.
The display shows the system pressure.
4.
Disconnect the supply hose from the boiler drain &
fill valve.
5.
Open the gas shut-off valve.
Activating the venting function
Tap the following buttons:
1.
2. "Service"
3.
Enter password
"viservice"
.
4.
Use
to confirm.
5. "Service functions"
Commissioning, inspection, maintenance
Topping up the heating water
5593201
Содержание B2HF
Страница 33: ...33 2 2x 1 Fig 26 Installation sequence Closing the wiring chamber 5593201 Installation ...
Страница 45: ...45 1 2x 1 2 3 2x 2 3 Fig 32 Commissioning inspection maintenance Removing the front panel 5593201 ...
Страница 111: ...111 1 2 4 3 6 5 Fig 56 Troubleshooting Repairs cont 5593201 Diagnosis ...
Страница 134: ...134 WiFi router 31 Wiring diagram 121 Keyword index Keyword index cont 5593201 ...
Страница 135: ...135 5593201 ...