0 site requirements – Baxi Potterton BBU 15 HE User Manual

Page 19

5.0 Site Requirements

5.10

Condensate 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:-

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.

5.11

Condensate 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.

From Boiler

Termination to an internal soil and vent pipe

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

Sink

Pipe must terminate
above water level but
below surrounding surface

Pipe must terminate above
water level but below
surrounding surface

Termination to a drain or gully

Termination to a purpose made

soak-away

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

Fig. 13

Fig. 14

Fig. 15

Fig. 16

Direct Connect Fitting

From Boiler

Min. 450mm

500mm Min.