5
Boiler installation
Logano GB125 BE US/CA - Technical specifications are subject to change without prior notice.
24
5.4
Installation of Water Connections
5.4.1
Installing B-Kit
The relief valve and pressure/temperature gauge are
installed into the supply manifold as described below:
V
Use the 1-1/4" BSP x NPT conversion nipple and
install the unmarked end into the supply (VK) connec-
tion of the boiler. This side also has longer thread
length and the thread is straight (BSP).
V
The conversion nipple is marked on the 1-1/4" NPT
side with pink color and a NPT stamping in the pipe.
Fig. 15 Measuring thread length on 1-1/4" conversion
nipple
V
Install 90° elbow 1-1/4" on conversion nipple.
V
Install supply manifold into elbow and orient in
desired direction (Fig. 16).
V
Install 90° elbow, relief valve and pressure/temperature
gauge.
Fig. 16 B-Kit Installation
1
90 degree 1 ¼" NPT elbow
2
(Conversion) nipple
3
Supply manifold
4
Pressure/temperature gauge
5
Relief valve
6
90 degree ¾" NPT street elbow
Caution:
due to leaking connections.
V
Install the piping connections to the boiler
without having undue stress on the near
boiler piping.
The pressure relief valve can only be installed
after the hydrostatic test (Chapter 5.5,
page 26) has been completed.
Use the supplied ¾" 90° elbow to ensure
that the relief valve discharge is installed hor-
izontally.
We recommend, especially in older, large vol-
ume systems, to install a dirt filter in the return
connection to the boiler to reduce waterside
debris build-up.