Baxi DUO-TEC COMPACT+ - COMBUSTION ANALYSIS AND ADJUSTMENT; Combustion Test (CO₂%); Combustion Adjustment Function (CO₂%); GAS VALVE

35
INSTALLER Section (en)
7651556.01 (1-01/16)
12.4 COMBUSTION TEST (CO
2
%)
For correct boiler operation, the content of (CO
2
- O
2
) in the combustion fumes must observe the tolerances indicated in the
IROORZLQJWDEOH,IWKHYDOXHRI&2
2
- O
2
) is different, check the electrodes and their relative distances. If necessary, replace the
HOHFWURGHVDQGSRVLWLRQWKHPFRUUHFWO\,IWKHSUREOHPSHUVLVWVXVHWKHIROORZLQJIXQFWLRQ
G20 G31
CO
2
%O
2
%CO
2
%O
2
%
0D[LPXPSRZHU
Nominal value 8.7 5.4 10.0 6.0
Permitted value 8.2 - 9.3 6.3 - 4.3 9.5 - 10.5 6.8 - 5.2
,JQLWLRQSRZHU
Nominal value 8.7 5.4 10.8 4.8
Permitted value 8.2 - 9.3 6.3 - 4.3 10.3 - 11.3 5.5 - 4.1
0LQLPXPSRZHU
Nominal value 8.8 5.2 10.0 6.0
Permitted value 8.2 - 9.3 6.3 - 4.3 9.5 - 10.5 6.8 - 5.2
7KHFRPEXVWLRQVDQDOLV\VVKDOOEHGRQHXVLQJDQDQDO\]HUUHJXODUO\FDOLEUDWHG
'XULQJQRUPDORSHUDWLRQWKHERLOHUSHUIRUPVFRPEXVWLRQFRQWUROF\FOHV,QWKLVSKDVH&2YDOXHVKLJKHUWKDQSSPFDQ
occur for brief periods of time.
COMBUSTION ADJUSTMENT FUNCTION (CO
2
%)
This function sets out to partially adjust the value of CO
2
%7KHIROORZLQJSURFHGXUHLVXVHG
• Press buttons and WRJHWKHUIRUDWOHDVWVHFRQGV:KHQWKHIXQFWLRQLVHQDEOHGWKHGLVSOD\VVKRZV³On´IRUDIHZ
VHFRQGVIROORZHGE\SURJUDPPHURZ³304´DOWHUQDWHGZLWKWKH%RIERLOHUSRZHU
• $IWHUWKHEXUQHULVOLWWKHERLOHUUHYHUWVWRPD[LPXP'+:SRZHU:KHQWKHGLVSOD\VKRZV100LWLVSRVVLEOHWRSDUWLDOO\
adjust the value of CO
2
%
• press
7KHGLVSOD\VKRZV00DOWHUQDWLQJZLWKWKHIXQFWLRQQXPEHU304 ÀDVKHV
• press
WRUDLVHRUORZHUWKHDPRXQWRICO
2
(from -3 to +3).
• press
 WR VDYH WKH QHZ YDOXH DQG YLHZ WKH SRZHU YDOXH  RQ WKH GLVSOD\ DJDLQ WKH ERLOHU FRQWLQXHV RSHUDWLQJ DW
PD[LPXP'+:SRZHU
This procedure can also be used to adjust the quantity of CO
2
to the LJQLWLRQSRZHU and to the PLQLPXPSRZHU by pressing
after point 5 of the procedure described above.
• $IWHUVDYLQJWKHQHZYDOXHSRLQWRIWKHSURFHGXUHSUHVV to take the boiler to its LJQLWLRQSRZHU. Wait for the value of
CO
2
WRVWDELOLVHDQGWKHQDGMXVWDVGHVFULEHGLQSRLQWRIWKHSURFHGXUHWKHSRZHUYDOXHLVDQXPEHU!DQG!WKHQ
save (point 5).
• press
again to take the boiler to PLQLPXPSRZHU. Wait for the value of CO
2
to stabilise and then adjust as described in
SRLQWRIWKHSURFHGXUHSRZHUYDOXH 
• to exit the function, press the buttons for at least 6 seconds as described in point 1.
13. GAS VALVE
This appliance does not require any mechanical adjustment on the valve. The system ensures electronic auto-adaptation.
*DVYDOYHNH\
Pi
Gas supply inlet pressure tap
13.1 GAS CONVERSION METHODS
Only an Authorised Technical Assistance Service can convert boiler operation from NATURAL GAS to LPG or vice-versa. To
perform calibration, set parameter P02 as described in the PARAMETER SETTINGS section. Lastly, check the combustion
parameters as described in the SPECIAL FUNCTIONS - CHECKING COMBUSTION PARAMETERS section.
:KHQWKHJDVFKDQJHLVFRPSOHWHGWKHERLOHUGDWDSODWHPXVWEHDPHQGHGWRLQGLFDWHWKHQHZJDVGDWD
Pi