Site preparation/portability
Greenstar Highflow CDi appliances are supplied with a floor
mounted pre-plumbing jig. The jig enables all gas and water
services to be pre-plumbed and tested prior to fitting the
boiler.
For ease of installation the appliance has a roll-in boiler tray
which allows it to be rolled into place once the connections
have been made.
Pipework connections and casing dimensions
A
Cabinet dimensions (mm)
A 850
B 600
C 600
Pipework connections
A CH flow 22mm
B DHW flow 22mm
C Gas inlet 22mm
D Cold main inlet 22mm
E CH return 22mm
A
C
B
B
C
D
E
*Space required for unvented areas with a removable door or panel
Condensate disposal
All condensing boilers generate condensate discharge
which needs to be piped away from the appliance using a
plastic pipe.
The amount of condensate generated depends on the
efficiency and operating status of the appliance. Depending
on operating temperatures, the appliance will condense in
both heating and hot water modes and may generate up
to 2.7 litres of condensate per hour for the 440CDi and
3.7 litres per hour for the 550CDi.
Condensate termination and route
Greenstar Highflow CDi combis incorporate a condensate
pump which allows condensate to be plumbed above the
boiler, allowing more flexible siting possibilities.
Condensate connection
The condensate pump fills up and periodically discharges
through the flexible condensate pipe between 200mm and
4,500mm from floor level. After this point the condensate
continues down the 22mm rigid pipework to the outlet
using gravity.
•
The flexible plastic pipe can be reduced in length to suit
the installation circumstances. The pipework must follow
one of the options shown on the next page.
Never terminate or discharge into any open source,
including: sink, bath, shower, bidet, toilet etc.
Note: any external condensate pipework should be protected
with weather resistant insulation to help prevent freezing.
The condensate connection on Worcester appliances is in
22mm polypropylene. The pipe should be extended and
run away from the appliance with a constant fall of 3º or at
least 50mm in every metre away from the boiler.
The condensate pipe can terminate into any one of four
areas (see next page).
Whilst all of the methods are acceptable it is best practise
to terminate the condensate pipe via an internal waste
system. This will eliminate the need for any external
condensate pipe runs which can be susceptible to freezing
in extreme weather. Best practise is not to run external
condensate pipe any further than 3m. If it is necessary to
run more than 3m externally increase pipe size to 32mm.
Max. 4,500mm
Min. 200mm
(28 Seiten)
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