Potterton Promax Store 24 Installation And Service Manual page 31

© Baxi Heating UK Ltd 2015
Commissioning the Boiler - Combustion Check
1. Reference should be made to BS:EN 12828 & 14336
when commissioning the boiler.
2. At the time of commissioning, complete all relevant
sections of the Benchmark Checklist at the rear of this
publications.
3. Having checked:
• That the boiler has been installed in accordance with
these instructions.
• The integrity of the flue system and the flue seals.
• The integrity of the boiler combustion circuit and the
relevant seals.
Proceed to put the boiler into operation as follows:
4. The Combustion Check procedure as shown by the
chart on the next page is mandatory. The method of
setting the boiler to operate at maximum and
minimum rates to comply with the procedure is
described below.
5. Ensure that all external controls are calling for heat.
The actual current boiler temperature is shown on the
display.
6. Turn both control knobs fully anticlockwise, then quickly
turn the right hand knob 1/4 clockwise twice and back
fully anticlockwise.
7. The display will now alternate between "SF% and the
current boiler temperature and both green LEDs will flash.
8. To set to maximum rate.
Turn the left hand knob fully clockwise. As the knob is
turned the display will change, indicating the fan speed.
9. The display will show "00%, indicating maximum rate,
then revert to "P " alternating with the current boiler
temperature.
10. To set to minimum rate.
Turn the left hand knob fully anti-clockwise. As the knob is
turned the display will change, indicating the fan speed.
When the display reads " 0% the boiler runs at minimum
rate.
11. This function is maintained for 20 minutes unless the
maximum CH temperature is exceeded. The function can
be disabled at any time by turning the right hand knob.
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