Annual Maintenance; Display Of Parameters - Baxi LUNA3 COMFORT HT Gebrauchsanleitung Für Den Benutzer Und Installateur

To optimise boiler efficiency, carry out the following annual controls:
• check the appearance and airtightness of the gaskets of the gas and combustion circuits;
• check the state and correct position of the ignition and flame-sensing electrodes;
• check the state of the burner and make sure it is firmly fixed;
• check for any impurities inside the combustion chamber.
Use a vacuum cleaner to do this;
• check the gas valve is correctly calibrated;
• check the pressure of the heating system;
• check the pressure of the expansion vessel;
• check the fan works correctly;
• make sure the flue and air ducts are unobstructed;
• check for any impurities inside the siphon fitted on certain boilers;
• check the magnesium anode, where present, for boilers fitted with storage boilers.
WARNINGS
Before commencing any maintenance operations, make sure the boiler is disconnected from the power supply.
Afterwards, move the knobs and/or operating parameters of the boiler to their original positions.
To enter the advanced information and settings mode, press IP and hold down for at least 3 seconds; access to the mode
is confirmed by the moving "INFO" message.
To exit, simply press IP briefly.
To scroll the information, press OK; when the large figures start flashing, the value can be modified by pressing
HEATING CIRCUIT
• "CH SL" Maximum temperature of heating circuit, set value with
WARNING
press to change the unit of measurement from °C to °F.
• "EXT T"
External temperature (with external probe connected).
"CH O>"
• Temperature of heating circuit delivery water.
• "CHFL" Central Heating flow temperature value (°C) of the Low Temperature Zone controlled by the AVS77 clima-
tic remote control (only with the AVS75 accessory).
• "CH SP" Temperature of water in heating circuit.
• "CH MX" Maximum temperature of heating circuit (set max. value with
• "CH MN" Minimum temperature of heating circuit (set min. value with
• "CH2SR" Ambient temperature of second heating circuit
(5...35 - set value with
• "CH2SF" Temperature of water in second heating circuit
(25...80 - set value with
DHW CIRCUIT
• "HWO" Temperature of DHW circuit or storage boiler delivery water.
• "HWSP" Temperature of water in DHW circuit. Set value with
• "HWRD"
Reduced temperature for DHW circuit.
• "HW MX"
Maximum temperature in DHW circuit (read-only)
• "HW MN"
Minimum temperature in DHW circuit (read-only)
ADVANCED INFORMATION
• "PWR %"
Flame power level/modulation (in %).
• "S FAN" Fan speed (rpm)
• "T EXH" Fumes temperature
INSTRUCTIONS FOR FITTERS

29. ANNUAL MAINTENANCE

30. DISPLAY OF PARAMETERS

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926.420.3 - EN