Bosch GREENSTAR HEATSLAVE II EXTERNAL 12/18 Service Manual download pdf (Page 30)

For full technical information on pipe size, insulation

and different condensate pipework methods, please

see Installation, Commissioning and Servicing

Instruction Manual.

Important points to consider when siting a condensate

drainage pipe:

•

Where a new or replacement boiler is being installed,

access to an internal “gravity discharge” point should

be one of the factors considered in determining

boiler location

•

The condensate pipe must be a minimum of 22mm dia.

plastic pipe

•

The condensate pipework must fall at least 52mm per

metre towards the outlet and should take the shortest

practicable route

•

Ensure there are no blockages in the pipe run.

Internal connections

In order to minimise risk of freezing during prolonged cold

spells, the following methods of installing a condensate

drainage pipe should be adopted, in order of priority.

Wherever possible, the condensate drainage pipe should be

routed and terminated so that the condensate drains away

from the boiler under gravity to a suitable internal foul water

discharge point such as an internal soil and vent stack.

A suitable permanent connection to the foul waste pipe

should be used. (see ﬁ g. 1)

Condensate pipework

Condensate

discharge

from boiler

Universal

connector

Soil and

vent stack

22mm dia.

Min. 450mm

and up to

three storeys

Fig. 1 Disposal to soil vent stack (internal and external models).

For external models increase pipe size and insulate pipework.

Alternatively if the ﬁ rst option is not possible, an internal

kitchen or bathroom waste pipe, washing machine waste

pipe, etc. can be used. (see ﬁ g. 2)

22mm dia.

Condensate

discharge

from boiler

Universal

connector

Visible air break

at plug hole

Sink or basin with

integrated overflow

75mm sink

waste trap

75mm

min.

Fig. 2 Disposal to a waste pipe (internal models)

Condensate

discharge

from boiler

Universal

connector

22mm dia.

Visible air break

at plug hole

Sink or

basin with

integrated

overflow

75mm sink

waste trap

75mm

min.

Condensate

pump

Fig. 3 Condensate pump disposal (internal models)

Condensate pump

Where “gravity discharge” to an internal termination is not

physically possible, or where very long internal runs would

be required to reach a suitable discharge point, condensate

should be removed using a proprietary condensate pump,

of a speciﬁ cation recommended by the boiler or condensate

pump manufacturer.

The pump outlet pipe should discharge to a suitable

internal foul water discharge point such as an internal soil

and vent stack, internal kitchen or bathroom waste pipe,

washing machine waste pipe, etc. A suitable permanent

connection to the foul waste pipe should be used.

(see ﬁ g. 3 and 4)

Universal

connector

22mm dia.

Condensate

discharge

from boiler

Pipework

transition

Insulate &

increase pipe

size to 32mm

25mm min.

Condensate

pump

Fig. 4 Condensate pump to external disposal (internal models)

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 55 56

Comments to this Manuals

No comments

Bosch GREENSTAR HEATSLAVE II EXTERNAL 12/18 Service Manual Page 30

Comments to this Manuals

Related products and manuals for Water heaters & boilers Bosch GREENSTAR HEATSLAVE II EXTERNAL 12/18