
Instructions for Use, Installation and Servicing ecoMAX pro
24
14 Conversion
• Again in screen ‘8’, Set the appliance fan speed/burner
to minimum by pressing the ‘-‘ key until ‘1’ (burner to
Pmin) is shown on the right hand side of the screen.
Press the ‘mode’ button again.
• Check the CO
2
value, which should be 10.5 %
±
0.2 %.
If adjustment proves necessary then proceed as
follows.
• Adjustment of the CO
2
at minimum rate is very
coarse, so carefully adjust the CO
2
with the (‘B’) offset
adjustment using a 2 mm allen key to 10.5 %, (rotate
clockwise to increase).
• After checking the combustion, press and hold the
‘mode’ button for 10 seconds to return to the normal
mode, showing the current flow temperature. Replace the
cap on the sampling point and refit the outer front case.
• Fit the LPG conversion label to the data badge.
• Re-commission boiler as described in the Installation
and Servicing Instructions supplied with boiler.
"A" throttle –
"Pmax" rotate
to increase
"B" offset adjustment
"Pmin" rotate
to increase
Fig 14.4
12705
Fig 14.5
12706
Appliance
CO
2
content at nominal
load for LPG in vol. %
ecoMAX pro 28E
10.5 %
±
0.2 %