Buderus GB402-320-5, Installation And Maintenance Instructions For Contractors

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10 Inspection and servicing
Logano plus GB402 – 6 720 820 700 (2018/01) 43
10.14 Inspection and maintenance reports
The inspection and maintenance records also serve as a master copy. ▶ Sign and date the completed inspection work.
Inspection work Page Full Load Partial load Full Load Partial load
1. Checking the general condition of the heating system
(visual inspection and function check)
2. Check the system parts, which are in contact with gas
or water, for the following:
- Internal leaks
- visible signs of corrosion
- Signs of ageing
3. Check the concentration of antifreeze/additives in the
heating water (observe the manufacturer's instructions
and the details in the operator's log).
Concentration:________% Concentration:________%
4. Check the water pressure of the heating system. 35
- Pre-charge pressure of the expansion vessel
(

expansion vessel installation instructions).
- Operating pressure 35
5. Check the burner and heat exchanger for
contamination; shut down the heating system for this
step.
6. Check the siphon and condensation catch pan; shut
down the heating system for this step.
7. Check the electrode block; shut down the heating
system for this step. 39
8. Checking the gas supply pressure 27
9. Check the supply air and exhaust air vents, the flue gas
connection and the flue gas routing. 26
10. Record readings: 29
- Feed pressure
________Pa ________Pa ________Pa ________Pa
- Gross flue gas temperature t
A
________ °C ________ °C ________ °C ______ °C
- Air temperature t
L
________ °C ________ °C ________ °C ________ °C
- Net flue gas temperature t
A
- t
L
________ °C ________ °C ________ °C ________ °C
- Carbon dioxide content (CO
2
)
or oxygen content (O
2
) _________% _________% _________% _______%
- CO value, free of air
_______ppm _______ppm _______ppm _______ppm
11. Carry out function checks: 30
- Check the ionisation current.
________μA ________μA ________μA ________μA
12. Check for leaks during operation. 30
13. If necessary, check the installed water treatment
cartridge for
14. Check that the control unit is set correctly to meet
demand (see documents for the control unit).
–
15. Final checking of inspection work. –
Confirm correct inspection
Company stamp / date / signature
Table 18