Quick Start Manual

10.0 Commissioning the Boiler

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