Contents
2
Operating instructions Logano plus GB312 gas-fired condensing boiler • Issue 06/2005
We reserve the right to make any changes due to technical modifications.
1 For your safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Notes regarding these instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Correct use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 Key to symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.4 Please observe these notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.4.1 If you smell gas. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.4.2 Tips on the boiler room. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Components on the Logano plus GB312 boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 BC10 controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Operation of the heating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 Switching on the heating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1.1 Starting the heating system via the control panel and programming unit . . . . . . . . . . . . 6
3.2 Switching off the heating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Emergency measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.4 Checking the operating pressure, topping up with heating water and bleeding the system . . . 7
3.4.1 When should you check the operating pressure? . . . . . . . . . . . . . . . . . . . . . . . . 7
3.4.2 Checking the operating pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.4.3 Filling the heating system and checking for leaks . . . . . . . . . . . . . . . . . . . . . . . . 8
3.5 Why is regular maintenance important? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1 Recognising and resetting faults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Operating pressure
Use the following fuel only:
__________________________________
Design operating pressure
(optimum value):
______________ bar
Maximum heating system
operating pressure:
(standard = 3 bar)
______________ bar
Company stamp/date/signature
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