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
5
Installing the boiler
Logano G115 WS US/CA – 6 720 813 418 (2019/09) 19
5.2 Fitting the water connections
5.2.1 Fitting the B-kit
The safety relief valve and the pressure/temperature gauge are mounted
on the supply manifold (included in B-Kit) on the VK boiler supply
connection as follows:
▶ Fit and seal unmarked end of double nipple into connection VK on the
boiler.
▶ Converter is paint-marked pink and stamped with the designation
NPT on the end with the 1¼ " NPT thread.
▶ Seal 90° 1¼ " NPT street elbow on double nipple.
▶ Fit and seal manifold to 90° elbow. The manifold can face in different
directions ( Fig. 14).
▶ Seal pressure/temperature gauge to supply manifold.
Fig. 13 Checking thread length on double nipple
Fig. 14 Installing B-Kit
[1] 90° 1¼ " NPT street elbow
[2] Double nipple
[3] Supply manifold
[4] Pressure/temperature gauge
[5] Pressure relief valve
[6] 90° ¾ " NPT elbow
CAUTION: Risk of system damage from leaking
connections.
▶ Support the pipes to the boiler to prevent them from
being under stress.
Do not fit the safety valve until the leak test ( Chapter
5.3, page 21) has been completed.
The relief valve must be installed in a vertical position.
We recommend installing a dirt filter (optional) in the
boiler return connection to reduce build-up of debris on
the water side.