37
4.14.1.
Switching from NATURAL GAS to PROPANE
- To open boiler front door, proceed as follows:
- Loosen the two cover retaining screws (see fig. 18a).
- Open cover.
- Lift front cover, pulling it towards you, and release it from the pins positioned on boiler upper side (see fig. 18b).
- Open mixer (A in fig. 21).
- Replace the nozzles in the mixer (fig. 20) with the nozzles for PROPANE (see tables 3, 4).
- Restore the mixer and change the value of parameter P00 from 1 to 3.
- See par. 4.14.3.
4.14.2.
Switching from PROPANE to NATURAL GAS
- Open the boiler front panel, as described in par. 4.14.1.
- Open mixer (A in fig. 21).
- Replace the nozzles in the mixer (fig. 20) with the nozzles for NATURAL GAS (see tables 3, 4).
- Restore the mixer and change the value of parameter P00 from 3 to 1.
- See par. 4.14.3.
4.14.3.
Burner adjustment
Maximum heat output adjustment
- start boiler in flue cleaning mode (see paragraph 6.3.1);
- set fan speed according to the type of gas (see table 11).
- Set flue gas CO
2
rate by turning the ratio adjuster B (fig. 19) and ensure that reading falls within the limits of table 12.
- Let boiler flue cleaning function on and continue with the next point ”Minimum heat output adjustment”.
fan speed
24 kW Natural gas
199 Hz
24 kW Propane
192 Hz
28 kW Natural gas
201 Hz
28 kW Propane
198 Hz
Table 11 - Fan speeds
Minimum heat output adjustment
- Press button “+ DHW”;
- Set flue gas CO
2
rate by turning the offset adjuster C (fig. 19) and ensure that reading falls within the limits of table 12.
- To turn off the flue cleaning function press “Reset” or select another boiler operating mode.
flue gas CO
2
fuel
CO
2
(%)
Natural gas
(24 kW)
9.0 ÷ 9.3
Propane
(24 kW)
9.8 ÷ 10.2
Natural gas
(28 kW)
9.0 ÷ 9.3
Propane
(28 kW)
10.0 ÷ 10.3
Table 12 – CO
2
rates
4.14.
Conversion to other gas types and burner adjustment
This boiler is built to run on the type of gas specified on the order, which is shown on the packaging and on the boiler rating
plate.
Any later conversion is to be exclusively carried out by qualified personnel, using using only manufacturer-approved
accessories accessories and following the procedure and adjustment instructions for an accurate boiler setting-up.
Содержание Antea 24kW Range
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