Alpha ARES 440 Tec - Burner Adjustment

37
All of the instructions below are provided for the
exclusive use of authorised assistance personnel.
3.13 BURNER ADJUSTMENT
(S)
MAXIMUM POWER
ADJUSTING SCREW
(R)
MINIMUM POWER
ADJUSTING SCREW
- Remove the cap and insert the CO2 analysis probe into the ue gas
output of the intake/exhaust terminal, see chap. 3.12.2.
All boilers are factory calibrated and tested. If necessary,
recalibrate the gas valves (MODULE1, MODULE 2, etc.)
2) Adjustment at minimum power:
- Start the boiler in “calibration” mode at MINIMUM POWER (see
3.12.1)
- Once the burner is on, check that the CO2 value at “MINIMUM”
power corresponds with what is indicated in the “NOZZLES - PRES-
SURES” table.
- If necessary, correct the value by turning (using a 2.5 mm Allen
key) screw “R”; CLOCKWISE increases it and ANTICLOCKWISE
decreases it (refer to the “NOZZLES - PRESSURES” table).
1) Adjustment at maximum power:
- Start the boiler in “calibration” mode at MAXIMUM POWER (see
3.12.1)
- Once the burner is on, check that the CO2 value at “MAXIMUM”
power corresponds with what is indicated in the “NOZZLES - PRES-
SURES” table.
- If necessary, correct the value by turning adjusting screw “S”
CLOCKWISE to decrease it and ANTICLOCKWISE to increase it
(see the NOZZLES-FLOW RATES-PRESSURES table).
Instructions for the installer
ARES TEC ErP: 440-550-660-770-900
Type of
Gas
Supply pressure Ø Noz-
zles
Diaphragm Fan speed CO
2
levels Power at ignition
[mbar] (mm) [mm] Min . Max . [%] [%]
FL Min
. FU Max . Min . Max . IG
Nat. gas (G20) 20
9
-
28 108 8.8
8.8
50
Nat. gas (G25) 25 9 -
28 113 9.1 8.5
50
Propane (G31) 37
9
-
28 101 10.8 10.6 50
NOZZLES - PRESSURES - FLOW RATES TABLE
+/- 0.2%