Installation Manual
Table Of Contents
- Contents
- 1 Safety Considerations and Symbol Descriptions
- 2 Product description
- 3 Moving the boiler
- 4 Installing the boiler
- 5 Installing the boiler
- 6 Commissioning the heating system
- 6.1 Bringing the system up to operating pressure
- 6.2 Checking the safety valve
- 6.3 Checking position of heat exchanger baffles
- 6.4 Preparing the heating system for operation
- 6.5 Starting up the control and the burner
- 6.6 Notes on commissioning the burner
- 6.7 Raising flue gas temperature
- 6.8 Manual reset high limit (STB)
- 6.9 Installing the burner door jacket
- 6.10 Commissioning log
- 7 Shutting down the heating system
- 8 Heating system servicing
- 9 Troubleshooting
- 10 Installation examples
- 11 Parts lists
- 12 Circuit diagrams
- Index
8
Heating system servicing
Logano G115 WS US/CA – 6 720 813 418 (2019/09)36
8.3 Cleaning the boiler
The boiler can be cleaned with brushes and/or by a wet method.
Cleaning equipment is available as accessory.
▶ Open burner door by removing the two hexagon bolts on the sides.
8.3.1 Cleaning the boiler with brushes
▶ Note the position of the heat exchanger baffles for later.
▶ Remove the hot gas baffle plates from the hot gas passages.
▶ Clean the hot gas baffle plates with one of the two cleaning brushes.
Fig. 37 After opening the burner door
[1] Flue gas baffles in the heat exchanger
▶ Clean the hot gas passages by turning the round cleaning brush.
Fig. 38 Brushing out the hot gas flues
▶ Clean the combustion chamber with a flat brush. Remove the debris
from the combustion chamber, the hot gas flues and the flue
connection.
▶ Refit the heat exchanger baffles in their original positions.
▶ Check sealing rope on burner door. Replace damaged or hardened
gasket cord.
▶ Close burner door with the two hexagon bolts (approx. 90 inch-lbs).
Tighten the hexagon bolts evenly.
Fig. 39 Brushing out the combustion chamber
8.3.2 Wet cleaning (chemical cleaning)
For wet cleaning use a cleaning agent appropriate for the degree of
soiling (soot or scale). Proceed with the wet cleaning in the same order
as described for cleaning with brushes ( Chapter 8.3.1, page 36).
▶ Cover the control panel with plastic to prevent spray from entering
the control panel.
▶ Spray cleaning agent evenly into the heat exchanger heater
passages.
▶ Close burner door and start up the heating system.
▶ Heat the boiler to a temperature of at least 160 °F.
▶ Shut down the heating system.
▶ Brush out the heat exchanger heater.
CAUTION: Risk of burning by touching hot boiler parts.
▶ Wear appropriate protective personal safety
equipment.
You can obtain suitable gasket cord from your local
Buderus sales office.
1
7 747 019 141-27.1RS
7 747 019 141-37.1RS
Follow the instructions for the cleaning product. You
may need to proceed differently from the method
described here in some circumstances.
7 747 019 141-38.1RS