Baxi Potterton BBU 15 HE Condensate Disposal, Condensate Pump Operation, From Boiler 500mm Min

Termination via internal discharge branch e.g sink waste - downstream

Direct Connect Fitting	Pipe must terminate
	above water level but
	below surrounding surface
Sink

From Boiler

Fig. 13

Termination to an internal soil and vent pipe

Direct Connect Fitting

5.0Site Requirements

5.10Condensate Disposal (cont.)

9.Ensure that the condensate can discharge freely (without blockage or restriction of the pipe) into the drain.

10.Examples are shown of condensate pipe methods of termination:-

i)via an internal discharge branch (e.g. sink waste) - Fig. 13.

ii)to an internal or external soil and vent pipe - Fig. 14.

iii)to a drain or gully - Fig. 15. Ensure that the condensate can discharge freely (without blockage or restriction of the pipe) into the drain.

iv)to a soakaway - Fig. 16.

From Boiler

Min. 450mm

Fig. 14

Termination to a drain or gully

Pipe must terminate above water level but below surrounding surface

From Boiler

Fig. 15

500mm Min.

Termination to a purpose made soak-away

From Boiler

Fig. 16

Holes in the soak-away must face away from the building

5.11Condensate Pump Operation

1.The pump operates for 2 seconds when mains voltage is applied to the boiler, e.g. when the power has been interrupted and then reinstated.

2.If the boiler reset rocker switch has been operated the pump will run also for 2 seconds.

3.When the level of condensate in the sump is sufficient to activate the discharge float switch the pump will run for 7 seconds, during which time about 0.6 litres of condensate will be discharged.

4.In the event of condensate not being discharged the safety float switch will operate when the volume of condensate in the sump reaches 1.05 litres. Once the safety float switch has been activated the boiler will lockout.

5.The total volume of the sump is 1.5 litres.

© Baxi Heating UK Ltd 2009 19