
- 15 -
Pipe
Size
Minimum pipe length required to install the
upstream line-in kit (mm) (A)
22 mm
480 mm
28 mm
580 mm
35 mm
630 mm
40 mm
735 mm
54 mm
820 mm
Step 2b:
Upstream line-in kits (35mm, 42mm, 54mm)
The upstream line-in kit includes:
1 - inline strainer
2 - pressure gauge (upstream)
3 - double check valve
4 - pressure reducing valve
5 - pressure gauge (fitted to pressure reducing valve)
6 - Mainsboost vessel connector (see Step 1)
7 - Isolation Valve (see Step 1)
The above components must be installed in the correct order to ensure safe and
satisfactory system operation.
Fig. 17b
5
4
3
2 (T-piece not supplied)
1
Inlet
A