Instruction manual

PIPEWORK CONNECTIONS
A - Flow (External regular models only)
optional open vent/air vent 1” BSP on
12/18, 18/25 and (1
1
/
4
” BSP on 25/32
models).
A1 - Flow (External System models only)
22mm Ø copper (28mm Ø on
25/32 models)
B - Primary drain & optional feed and
expansion/feed
3
/
4
” BSP
C - Return 22mm Ø copper (28mm Ø on
25/32 models)
D - Fixing point for optional return oil line
E - Oil isolating valve (10mmØ)
F - Flexible oil hose
G - Pressure relief discharge pipe
15mm Ø copper (External System
models only)
WATER CONNECTIONS:
All service pipes into the property must pass
through the services duct.
Insulate all the system/supply pipes and
where the pipes pass through the duct use
at least 22mm insulation around the pipes.
Remove the transit bungs from the pipework
connections on the boiler.
NOTE: that surplus water may be present due
to factory testing.
Ensure all pipework is clean.
Fit the return pipe (C) to the secondary heat
exchanger using the sealing washer supplied.
Align water pipework through the 100mm Ø
duct and connect, ensuring that the
control box fits correctly before permanently
connecting the pipework.
Check that all unused sockets have been
capped.
OIL SUPPLY CONNECTIONS:
NOTE: Oil filters and de-aeration devices are
not to be fitted within the casing and the fire
valve body must be at least 1 metre from the
external casing.
Route the oil supply pipe through the
appropriate casing hole as required and
connect to the isolating valve (E) and ensure
the valve is closed.
Connect the flexible oil hose (F) to the isolating
valve (E).
Pass the fire valve sensor through the most
appropriate casing hole and locate the
capillary in the cut out at the bottom of the
hole.
Clip the sensor into the clip provided at the
rear of the control box.
Rotate the cover plate and seal so it does not
cover the capillary, then secure with the screws
provided.
CAUTION: ISOLATE THE OIL & WATER MAINS SUPPLY BEFORE STARTING ANY
WORK AND OBSERVE ALL RELEVANT SAFETY PRECAUTIONS.
A
External
regular
models
only
B
C (Return pipe)
located at the side
of the secondary
heat exchanger
D
E
F
Return pipe
(C)
Washer
PIPEWORK CONNECTIONS
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR CAMRAY EXTERNAL &
EXTERNAL SYSTEM 12/18-18/25-25/32
8 716 115 667a (05.2009)
25
INSTALLATION
A1 (Flow pipe)
External System
only (behind
boiler)
G External System
only Pressure
relief outlet
(behind boiler)
CAMRAY EXTERNAL SYSTEM SHOWN