G115WS/3 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
2
Product description
Logano G115 WS US/CA – 6 720 813 418 (2019/09) 9
2.8 Conditions for operation
Maintaining the specified operating conditions will enable the boiler to
provide a high level of reliability and long service life. Some details relate
only to operation with Buderus Logamatic control panels.
2.8.1 General operating conditions
CAUTION: Risk of system damage if operating
conditions are not maintained.
Irreversible damage to individual components of the
boiler as a whole or the heating system may occur.
▶ The information on the rating plate is binding and
must be observed.
Operating conditions
Min. boiler water temperature
Operating interruption
(complete boiler shutdown)
heating circuit with
heating circuit mixing valve
1)
Min. return temperature
In combination with Logamatic control for variable low-temperature operating modes, such as Logamatic 2107
no requirements operating
temperatures are ensured by
the Logamatic controls
2)
Automatically by Logamatic controls not required but recommended with
low-temperature heating system
design 130/113 °F
Required with:
•Underfloor heating systems
•Systems with high water content:
> 115° gal/MBH
(1 MBH = 100.000 Btu/hr)
In conjunction with a Logamatic controls for constant boiler water temperatures, e.g. Logamatic 2109 or with supplementary external
programmer and aquastat
150 °F
3)
possible if, after interruption of the
operation, there is at least 3 hours
heating operation
required Required with:
•Systems with high water content
> 115 gal/MBH: 130 °F
Table 4 General operating conditions
1) A heating circuit with a mixing valve improves controllability and is specifically recommended for systems with several heating zones.
2) If heating zones or a boiler circuit actuator cannot be regulated via the control device (for example pump logic), an operating temperature of 122 °F must be reached within
10 min of switching the burner ON by restricting the water volume flow.
3) Boiler water temperature control setting: when the boiler is in ON mode, the minimum boiler water temperature in the boiler must be reached within 10 minutes, e.g. by flow
rate limitation, and maintained as the minimum temperature.