Plumbing Manifold; Connections - Bosch Worcester Greenstar Ri ErP + Series Installation And Maintenance Instructions Manual

PRE-INSTALLATION
4.6

PLUMBING MANIFOLD

4.6.1 CONNECTIONS

Heating System 22mm compression fittings
Gas 22mm compression fittings
Use the fittings supplied in the Hardware literature pack:
Do not use the pre-formed copper pipes supplied with
the appliance for the gas supply.
These copper pipes are for water only.
• Use the 22mm copper pipes (1 & 2) provided with the appliance, as
shown in the diagram opposite.
• If the flow and return pipes are to be run behind the appliance it
maybe an advantage to connect the pipes before hanging on the wall
especially if space is limited.
Further guidance on pipe routing can be found printed
on the appliance template (supplied with the appliance).
▶ Ensure that the pipes are adequately supported and
room between the pipes to avoid noise.
Return
4
3
4
Pipes in alternative position
Fig. 19 Plumbing manifold
22
Flow
3
2
1
# Function
1 Gas
2 Condensate
3 Cylinder & CH Flow
4 Cylinder & CH Return
Table 17 Key to figures 19 & 20
1
Fig. 20 Pipe work dimensions
From left case Diameter of
edge pipe
55mm 22mm
210mm 22mm
285mm 22mm
350mm 22mm
reset max
2 3 4
6 720 821 670 (2018/06)