10.0
Commissioning the Boiler
33
© Baxi Heating UK Limited 2005
10.3
Switching Off The Intelligent Pre-heat
(Fig. 36)
1. The boiler includes an intelligent pre-heat feature. This
feature ensures that the domestic hot water to the tap is
pre-heated when, and only when, the user required
domestic hot water the previous week. For example, if
the user only requires hot water between 7.00am and
8.00am on Monday then the boiler will log this demand
and then the next week will only pre-heat between
7.00am and 8.00am on Monday. During the first week of
operation from power on no pre-heating will occur.
2. The pre-heat switches the boiler on for approximately
1 minute every 40 minutes whenever it is required.
3. The boiler is factory set with the pre-heat feature on.
If the user wishes to disable this feature then proceed as
follows:
a) Isolate the mains supply to the boiler.
b) Remove the outercase.
c) Lower the hinge down facia box.
d) Remove the PCB connections cover.
e) At the the extreme left hand side of the PCB there
are two jumpers (one Blue, one Red). Remove both
Blue and Red jumpers.
4. Reassemble in reverse order.
Facia Box
Fig. 36
Remove the Blue &
Red Jumpers
labelled
CN11 & CN12
PCB
PCB Connection Cover