De-Aeration Function; Chimney Sweep Function; Combustion Adjustment Function - UTICA BOILERS MAC-150 Manuel D'installation, D'utilisation Et D'entretien

12.2 DE-AERATION FUNCTION

This function is used to facilitate the elimination of the air inside the heating circuit when the boiler is first i nstalled o r after
maintenance when the water is drained from the primary circuit.
To enable the system gas extraction function press buttons
appears on the display for a few seconds, followed by program row 312.
The electronic board will activate a pump on/off cycle lasting 10 minutes. The function will automatically stop at the end of the
cycle. To manually exit this function, press the above buttons together for 6 seconds once again.
12.3 CHIMNEY SWEEP FUNCTION (CO2 Adjust)
For correct boiler operation, the content of (CO
below.
COMBUSTION TABLE
Maximum
Nominal value
power
Permitted value
(100%)
Ignition
Nominal value
power
Permitted value
(*)
Minimum
Nominal value
power
Permitted value
(0%)
(*) Automatically calculated from the PCB
This Chimney Sweep Function enables the boiler to generate maximum heating power. After activation, the boiler power % can
be adjusted from minimum (0%) to maximum (100%) in the DHW mode.
• Press buttons and
seconds followed by program row "303" alternating with the % of boiler power.
to gradually adjust power (increments of 1%).
• Press
• To exit press both buttons together for at least 6 seconds, as described in point one.
If the value of CO - O is different, check the electrodes and their relative distances. If necessary, replace the electrodes and
2 2
position them correctly. If the problem persists, use the "COMBUSTION ADJUSTMENT FUNCTION (CO
IMPORTANT INFORMATION
Press to display the instantaneous flow temperature for 15 seconds
WARNING
The combustion analysis shall be done using a regularly calibrated analyzer.
NOTICE
During normal operation the boiler performs combustion control cycles. In this phase, CO values higher than 400 ppm
can occur for brief periods of time.
12.4 COMBUSTION ADJUSTMENT FUNCTION (CO
This function sets out to partially adjust the value of CO
1. Press buttons and
seconds followed by program row "304" alternated with the % of boiler power;
2. After the burner is lit, the boiler reverts to maximum DHW power (100). When the display shows "100" it is possible to partially
adjust the value of CO
3. press . The display shows "00" alternating with the function number "304" ( flashes);
4. press to raise or lower the amount of CO
5. press to save the new value and view the power value "100" on the display again (the boiler continues operating at
maximum DHW power).
This procedure can also be used to adjust the quantity of CO
after step 5 of the procedure described above.
6. After saving the new value (step 5 of the procedure), press
CO to stabilize and then adjust as described in step 4 of the procedure (the power value is a number <> 100 and <> 0) then
2
save (step 5);
- O ) in the combustion flue must be within the tolerances indicated in the table
2 2
Gas A (Natural Gas) - MAH-125
CO % O
2
8.7 5.4
8.2 – 9.3 6.3 – 4.3
8.7 5.4
8.2 – 9.3 6.3 – 4.3
8.8 5.2
8.2 – 9.3 6.3 – 4.3
together for at least 6 seconds. When the function is enabled, the displays shows "On" for a few
together for at least 6 seconds. When the function is enabled, the displays shows "On" for a few
%;
2
2
together for 6 seconds. When the function is active, On
Gas A (Natural Gas) - MAC-150
% CO %
2 2
9.0
8.5 – 9.5
8.7
8.2 – 9.3
8.8
8.2 – 9.3
%)
2
%. The following procedure is used.
2
(from -3 to +3);
to the ignition power and to the minimum power by pressing
2
to take the boiler to its ignition power. Wait for the value of
31
Gas E (LPG)
O % CO %
2 2
4.9 10.0
5.7 – 4.0 9.5 – 10.5
5.4 10.8
6.3 – 4.3 10.3 – 11.3
5.2 10.0
6.3 – 4.3 9.5 – 10.5
%)".
2
240011317, Rev. F [03/31/2017]
O %
2
6.0
6.8 – 5.2
4.8
5.5 – 4.1
6.0
6.8 – 5.2