Worcester GREENSTAR 12i Instruction Manual page 62

Flow 22mm
B
Flow 22mm
16
PLUMBING MANIFOLD
Gas Supply (alternative from above appliance) 22mm
Cylinder Return
15mm
Mains Gas
Supply 22mm
Cylinder
Return 15mm
CH Return 22mm
C
A
CH Return 22mm
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR 12i/24i System
PLUMBING MANIFOLD
CONNECTIONS:
Heating System: 22mm compression fittings
Gas: 22mm compression fittings
Cylinder Return 15mm compression fittings
Use the fittings supplied in the Lit/Hardware
pack and the Optional Diverter Valve Kit.
• Before the wall mounting frame is fitted to the
wall you must first assemble the service valve
(A) included in the Optional Diverter Valve Kit
and secure to the wall mounting frame as
shown with the two screws (B) supplied.
• If the boiler pipes are to be run behind the
appliance ensure that the pipes pass through
the slot in the guide (C). This is fitted to the
boiler frame.
NOTE: If the optional diverter valve is used with
an unvented cylinder then a zone valve must be
fitted in the flow or return to the cylinder to
comply with unvented cylinder regulations.
Further guidance on pipe routing can be
found printed on the boiler template
(supplied with the boiler).
NOW R ETU R N TO TH E MAIN
IN STR UCTION S PAG E 16 TO
CONTINUE INSTALLATION.
8 716 115 167b (03/2009)