Worcester 26CDi XTRA Installation And Servicing Instructions page 16

Slide the appliance onto the pre-plumbing manifold ensure the
three pegs are located correctly. Secure with the two M6 nuts
and washers at the top and screw the appliance to the manifold
at the bottom, using the three retaining caps and M6 bolts.
See fig. 19.
To access pegs and caps remove the bottom panel.
Unscrew the automatic air vent cap. See fig. 20.
If the air and flue duct assembly is to be fittcd from inside the
room, the ducts must be cut to length, assembled and inserted
through the wall, at this stage.
Refer to Section 10.4 Air and flue ducts preparation and
assembly.
Fig. 19. Fixing the appliance to the wall mounting plate.
Wall mounting plate
Fig. 20. Flue turret fixing and automatic
air vent.
Fixing screws (4)
Auto air vent
Flue gas
test point
Appliance
Step 1. Rest appliance on
wall mounting plate and push
back, engaging valves first.
Flue turret
Sealing
gasket
16
Keep appliance
vertical
10.3 Condensate Drain Connection
The condensate drain connection is located at the bottom right
hand side of the appliance.
The condensate drain pipe and collar (contained within the
hardware /literature pack) is screwed to the outlet of the syphon.
This pipe can be connected to either push fit 22mm plastic pipe
or 3 / in solvent weld plastic pipe.
4
The length of condensate pipe can be reduced but care must be
taken to ensure the pipe can be removed to allow removal of the
syphon for cleaning and removal of appliance from the wall.
The pipe should discharge into the household drainage system
and have an internal termination. If this is not practical,
discharge into an outside gully or soak away is acceptable.
The condensate discharge pipe should have a fall of 2
per metre length). The minimum pipe diameter for internal runs
is 15mm and 32mm for external runs.
Any external runs should also be insulated to prevent it from
freezing.
It is not necessary to provide air breaks or traps in the discharge
pipe. The appliance includes an integral 50mm trap and siphon.
The appliance is fitted with a safety device to prevent it from
working if the condensate pipe gets blocked by either ice or
debris.
The condensate drain pipe should be checked during any
servicing and any debris found removed.
Refer to the British Gas publication "Guidance Notes for the
Installation of Domestic Gas Condensing Boilers."
Step 2. Secure at top
with the M6 nuts and
washers supplied (2).
Step 3. Secure
at bottom with
caps and bolts
supplied (3).
1 / ° (44mm
2