Worcester GREENSTAR 30 HE Service Manual download pdf (Page 14)

6 720 611 400 GB (03.11)

Installation

Condensate Termination and Route

The appliance has a built-in syphonic condensate trap

eliminating the need for external traps. Connect to the

22mm plastic drain pipe and extend the pipe run away

from the control panel and appliance witha constant fall

of 2.5° or 25mm in every metre. See Fig. 12

The condensate pipe can terminate into any of four

areas:

Fig. 11

Whilst all of the above methods are acceptable it is

always the best practice to terminate the condense pipe

via an internal waste system.This will eliminate the need

for any external condensate pipe runs which can be sus-

ceptible to freezing in extreme weather.

Fig. 12 Recommended route of the condensate drain

External condensate pipework

The syphonic condensate trap collects condensate into

a trap which releases it in 100 ml quantities. This helps

to prevent the discharge from freezing.

If there is no alternative and the condensate pipe has to

be externally run, the following should be considered:

•The pipe run should take the shortest practical route.

•The pipework should be insulated with weather

resistant insulation.

•The pipe should terminate as close as possible to the

ground or drain, whilst still allowing the condensate

to safely disperse. This would prevent wind blowing

up the pipe.

•The pipework should be installed with the minimum

of horizontal runs and with a downward slope of at

least 2.5 °.

3.7 Fitting the appliance

Removing the outer case

B Remove retaining screws (1), see Fig. 13.

B Slide the outer case upwards and forwards to

remove (2).

Fig. 13

Boiler

Sink

Ø 22 min.

Siphon

75 min. trap

Invert

No length

restriction

No length

restriction

No length

restriction

Internal soil

and vent stack

The gradient of the discharge pipe

should be 2.5¡ (40 mm/m) minimum

The gradient of the discharge pipe

should be 2.5¡ (40 mm/m) minimum

The gradient of the discharge pipe

should be 2.5¡ (40 mm/m) minimum

An internal waste system

An external waste system

The rainwater system

An external purpose made soakaway

The gradient of the discharge pipe should be

2.5¡ (40 mm/m) minimum

Use waterproof pipe work

insulation in very exposed

positions

Open end of pipe

direct into gully,

below ground but

above water level.

Open end of pipe

direct into gully,

below ground but

above water level

Open end of pipe direct

into gully, below ground

but above water level

75 min. trap

450 min.

Siphon

75 min. trap

Boiler

6 720 610 596 -03.2TD

Boiler

Sink

6 720 610 602 - 04.1O

Benchmark: For optimum performance

after installation, this boiler and its asso-

ciated central heating system must be

flushed in accordance with the guide-

lines given in BS5793:1992 “Treatment

of water in domestic hot water central

heating systems”.

The outer case is secured against unau-

thorised removal by a retaining bracket

(electrical safety) at the bottom left. Al-

ways secure the outer case with this

bracket again after refitting.

6 720 610 597 -10.TD

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Worcester GREENSTAR 30 HE Service Manual Page 14

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