Immergas ARES PRO 150 Instructions And Recommendations page 33

• ARES PRO 230 - 300 - 348 - 400 - 500 - 600
1) Adjustment at maximum power
- Start the boiler in "calibration" mode at MAXIMUM POWER.
- Once the burner is on, check
that the CO value at "MAXIMUM" power corresponds with what
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is indicated in the "NOZZLES - PRESSURES" table.
- if it does not correspond, correct it by turning screw "S" CLOCKWISE
to increase it, or ANTICLOCKWISE to decrease it.
(S) MAXIMUM POWER ADJUSTMENT SCREW
GAS VALVE (Side view)
PG = GAS PRESSURE SWITCH
(*) PG Max and PG Min - only on ARES PRO 348 / 400 / 500 / 600
(#) PG Min 230 / 300
Instructions for the installer
2) Adjustment at minimum power
- Start the boiler in "calibration" mode at MINIMUM POWER.
- Once the burner is on, check that the CO
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).
(R) MINIMUM POWER ADJUSTMENT SCREW
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value at "MINIMUM"
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