Dear Customer, Our company is confident our new product will meet all your requirements. Buying one of our products guarantees all your expectations: good performance combined with simple and rational use. Please do not put this booklet away without reading it first: it contains useful information for the correct and efficient use of your product.
DESCRIPTION OF SYMBOLS WARNING Risk of damage to or malfunction of the appliance. Pay special attention to the warnings concerning danger to people. DANGER OF BURNS Wait for the appliance to cool down before working on the parts exposed to heat. DANGER - HIGH VOLTAGE Live components - electrocution hazard.
CSQ-certified quality management (ISO 9001), environmental (ISO 14001) and health and safety (OHSAS 18001) systems. This means that BAXI S.p.A. includes among its objectives the safeguarding of the environment, the reliability and quality of its products, and the health and safety of its employees.
1. COMMISSIONING THE BOILER To light the boiler correctly, proceed as follows: • Check that the system pressure is correct (section 6); • Power the boiler; • Open the gas tap (yellow, positioned under the boiler); • Select the required heating mode (section 1.2). During initial ignition, the burner may not ignite (causing the boiler to shut down) until any air in the gas pipes is vented.
2. PROLONGED SHUTDOWN. ANTI-FREEZE PROTECTION Do not drain the whole system as filling up with water again could cause unnecessary and harmful scale to build up inside the boiler and the heating elements. If the boiler is not used during winter and is therefore exposed to the danger of frost, add some specific anti-freeze to the water in the system (e.g.: propylene glycol coupled with corrosion and scale inhibitors).
5. BOILER INFORMATION MENU Press to display the information indicated in the following table. Press to exit. Description Description SW Diagnostic Code Ion current Heating flow temperature Burner working hours Outdoor temperature (if the outdoor sensor is fitted) Zone 1 heating mode External storage tank temperature (fitted models) Zone 2 heating mode DHW temperature (fitted models)
Lastly, vent any radiators in the system. BAXI declines all liability for damage deriving from the presence of air bubbles in the primary exchanger due to the incorrect or imprecise observance of the above.
11.2.3). Check that the flow of the water circulating in the boiler is not less than the value indicated in the following table: Operating flow rate (l/h) with Model Minimum flow rate (l/h) BAXI hydraulic separator 1.90 2000 4200 1.110...
For optimal installation, the accessories supplied by the manufacturer should be used. TABLE 1A If the flue and air ducts installed are not supplied by BAXI S.p.A., make sure they ∆P (Pa) are certified for the type of use and have a maximum pressure drop as indicated in 1.90 MP...
10.3 CASCADE FLUES This type of duct evacuates the products of combustion of more than one boiler in a cascade connection through a shared fumes collector. The collector may only be used to connect the boilers to the flue duct. Available diameters are: Ø125 mm - Ø160 mm and Ø200 mm.
TERMINAL BLOCK M3 Terminals 1 - 3: not used. Terminal 4 - 5: storage boiler pump connection. Terminal 6 - 7: system heating pump connection (external downline from hydraulic separator). If the appliance is connected to an underfloor system, install a limit thermostat to prevent the latter from overheating. Use the relative cable grommets at the bottom of the boiler to thread the cables through to the terminal blocks.
Use the Remote Control to set the programmable timer for heating and DHW. See the instructions supplied with the accessory. SETTING PARAMETERS USING THE REMOTE CONTROL SYMBOLS FOR REMOTE CONTROL Turn knob B Display shows Press knob B Press button A and knob B together Press button A or C Press buttons A and C together KEY TO FIGURE MENU...
11.2.2 EXTERNAL SENSOR To connect this accessory, see figure to side (terminals 4-5) and the instructions supplied with the sensor. With the External Sensor connected, on the boiler control panel move the set climate curve Kt in parallel (see annex "SECTION" E and parameter P03 in the table in section 14).
12. INITIAL IGNITION - SPECIAL FUNCTIONS When the boiler is powered up, the code “311” appears on the display and the boiler is ready for “initial ignition”. Follow the procedure “GAS EXTRACTION FUNCTION” as described in the section below and enable programme 312. After this operation, the boiler is ready to ignite the burner.
14. PARAMETERS SETTING To programme the parameters of the boiler electronic board, proceed as follows: • Press together and hold them down for 6 seconds until programme row “P02” appears on the display alternated with the set value (°C); • Press and hold down for 6 seconds until "On"...
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CONFIGURATION 5700 Not used (Do NOT change this parameter) 5710 Zone 1 heating circuit (1=enabled) 5715 Zone 2 heating circuit (1=enabled) 5730 DHW sensor (1=Tank sensor, 2=Thermostat, 3=instantaneous sensor) 5890 Not used (Do NOT change this parameter) 5931 *BX2 sensor input (first auxiliary sensor – section 11) 5932 *BX3 sensor input (second auxiliary sensor –...
15. GAS VALVE CALIBRATION To calibrate the gas valve, enable the calibration function as described in section 12.2 and carry out the following operations: 1) Calibrating MAXIMUM heat output. Check that the measured on the flue duct, with the boiler operating at maximum heat capacity, matches that indicated in table 2 (allowed tolerance +/- 0.5%).
16. ADJUSTMENT AND SAFETY DEVICES The boiler has been designed in full compliance with European reference standards and in particular is equipped with the following: • Limit thermostat Thanks to a sensor placed on the CH flow line, this thermostat interrupts the flow of gas to the burner if the water in the primary circuit overheats.
18. ANNUAL SERVICING To optimise boiler efficiency, carry out the following annual controls: • Remove any deposits from heat exchanger using a suitable soft brush. Do not use a brush with metallic bristles; • Remove any fallen deposits from the bottom of the inner case; •...
18.3 CHECKING THE BURNER The burner needs no cleaning. • Check the burner surface for damage, replace the burner if necessary. • Check the positioning of the flame detection probe. • Verify that the distance of the ignition electrode is within tolerance as shown in the figure. •...
19. THERMAL FUSE REPLACEMENT OF HEAT EXCHANGER The thermal fuse is positioned on the rear of the heat exchanger as shown in the figure, is electrically connected in series with the safety thermostat. Its function is to protect the exchanger from overheating in case of insulation failure. When this occurs the device appears on the display the anomaly E110.
20. TECHNICAL SPECIFICATIONS Model: LUNA DUO-TEC MP+ 1.90 1.110 Cat. 2H3P Gas used Natural Gas - Propane gas Rated heat input 87,4 104,9 Nominal Gas Consumption MJ/h Turndown Gas Consumption MJ/h Rated heat power 80/60 °C 85,0 102,0 Rated heat power 50/30 °C 91,8 110,2 Reduced heat output...
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Lmax = 10 m - Ø 110/160 mm Lmax = 9 m - Ø 110/160 mm Lmax = 10 m - Ø 110/160 mm Lmax = 8 m - Ø 110/160 mm Lmax = 9 m - Ø 110/160 mm (L1+L2) max = 27 m - Ø...
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