Biasi RINNOVA COND 24S User Manual And Installation Instructions
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Biasi RINNOVA COND 24S User Manual And Installation Instructions

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  • Page 1 RINNOVA COND User manual and installation instructions...
  • Page 2 Congratulations on choosing this product. Your modulating boiler is electronically adjusted and ignited. • It is highly efficient • It has a sealed chamber. Unlike traditional boilers, your condensing boiler makes it possible to recover energy by condensing the water vapour contained in the flue gas. This means that, with equal heat production, it consumes less gas, and the flue gas contains fewer substances that are harmful to the environment.
  • Page 3 IMPORTANT The manual must be read carefully to ensure rational and safe use of the boiler. It must be stored with care as it may be necessary to consult it in the future. If the unit is trans- ferred to another owner, the manual must accompany the boiler. The initial switch-on must be carried out by an Authorised Service Centre;...
  • Page 4 DURING USE It is prohibited and dangerous to obstruct, even partially, the air intakes for the ventila- tion of the room where the boiler is installed (UNI 7129-2 and related standards); Repairs must only be carried out by authorised service centres using original spare parts. Therefore, in the case of a problem, deactivate the boiler only (see instructions).
  • Page 5 DANGER: Instructions marked with this symbol must be observed to prevent mechanical or generic accidents (e.g. injuries or bruises). DANGER: Instructions marked with this symbol must be observed to avoid electrical accidents (electrocution). DANGER: Instructions marked with this symbol must be observed to avoid the risk of fire or explosions.

  • Page 6: Table Of Contents

    5.13 Electrical connection of the remote control (optional) ......43 Models RINNOVA COND 24S M275V.2024 SM RINNOVA COND 28S M275V.2428 SM...

  • Page 7: Boiler Description

    BOILER DESCRIPTION BOILER DESCRIPTION 1.2 Shut-off valves and cocks 1.1 Assembly view The boiler model and serial number are Install a shut-off cock for the printed on the warranty certificate. DHW inlet. The figures in this manual only show one of the possible ways of installing cocks, pipes and fit- tings.

  • Page 8: Control Panel

    BOILER DESCRIPTION 1.3 Control panel The symbol indicates a volatile error. The boiler is reactivated automatically once the fault has been resolved The symbol indicates that the boiler can be restarted directly by the user by pressing the re- set button All symbols with lines radiat- Figure 1.3 ing from them indicate that the...
  • Page 9 BOILER DESCRIPTION FUNCTION FUNCTION Boiler with heating High heating pressure power request. The temperature of the Temperature gradi- ent circulation failure primary heating circuit (>2K/s) is displayed. Heating delivery tem- Burner ignition perature between 90°C (discharge) and 100°C Flame detected (burner ignited) Boiler in antifreeze Gas valve fault...

  • Page 10: User Instructions

    USER INSTRUCTIONS USER INSTRUCTIONS 2.1 Warnings RESET Check that the heating circuit is correctly filled with water, even if the boiler is only used for pro- ducing domestic hot water. Figure 2.2 If it is not, proceed with filling; see sec- Heating/DHW operation tion "Filling the heating circuit"...

  • Page 11: Heating Circuit Temperature

    USER INSTRUCTIONS RESET Figure 2.7 Adjusting the heating temperature based on the outdoor temperature (without ex- ternal sensor) Adjust the heating delivery hot water tem- Figure 2.5 perature as follows: • from 27 to 35 with an outdoor temperature The LCD display shows the stand-by status of between 5°C and 15°C and the symbol (Figure 2.6).

  • Page 12: Domestic Hot Water Temperature

    USER INSTRUCTIONS the heating system's delivery water tem- mend setting the boiler temperature to be- perature according to the outdoor tempera- low 50°C. ture. In such cases, we recommend installing a In this case, the boiler must be set by a water softener in the DHW system.
  • Page 13 USER INSTRUCTIONS RESET Figure 2.12 In OFF mode, the antifreeze protection is active. If the boiler will be inactive for a long period of time: • Disconnect the boiler from the electric power supply; • Close the boiler cocks Figure 2.13; Closed position Figure 2.13...

  • Page 14: Useful Tips

    USEFUL TIPS USEFUL TIPS values until the code n10 “heating water pressure” and a pressure value of 1.3 bar 3.1 Filling the heating circuit (Figure 3.4) appear on the display. CLOSED RESET Heating circuit filling cock OPEN RESET Figure 3.4 Figure 3.1 Open the filling cock in Figure 3.1 located under the boiler and at the same time check...

  • Page 15: Antifreeze Protection

    USEFUL TIPS During this check, the most important boil- er components are inspected and cleaned. This check may be performed within the scope of a maintenance contract. 3.5 External cleaning Before performing any cleaning operation, disconnect the boiler from the electric mains supply. To clean, use a cloth soaked in soap and water.

  • Page 16: Displays In Info Mode

    USEFUL TIPS Other possible anomalies shown on the In the case of malfunctions oth- LCD display er than those described above, If an error code, the symbol and the shut down the boiler as de- symbol are shown on the LCD dis- scribed in section "Shutdown"...

  • Page 17: Flue Thermal Fuse

    USEFUL TIPS Table of Value shown contents DHW output temp. NTC return temperature (not present) Flue gas temperature (not present) Outdoor temperature Maximum speed (RPM/100) Figure 3.11 Heating circuit pressure DHW flow rate PWM pump speed percentage Fan speed (RPM/100) (not used) Last error code Second-to-last error code...

  • Page 18: Technical Specifications

    TECHNICAL SPECIFICATIONS TECHNICAL SPECIFICATIONS 4.1 Assembly view Figure 4.1 - 18 -...

  • Page 19: Schematic Diagram

    TECHNICAL SPECIFICATIONS 4.2 Schematic diagram Figure 4.2 3 Heating circuit filling cock 10 Domestic hot water inlet cock 4 Condensate outlet pipe 11 Heating circuit drain cock 5 Heating delivery pipe 19 Flue thermal fuse 6 Domestic hot water outlet pipe 20 Heating NTC - Max temperature NTC 7 Gas cock 21 Primary condensing exchanger...
  • Page 20 TECHNICAL SPECIFICATIONS 24 Automatic bleed valve 25 Pump 26 Pump bleed cap 27 Gas valve 28 Gas valve inlet tapping point 29 DHW NTC probe 30 Heating transducer 31 Condensate outlet siphon 32 DHW exchanger 33 Three-way valve 34 Three-way valve plug 35 Fan 36 Air/gas mixer 37 Silencer...

  • Page 21: Wiring Diagram

    TECHNICAL SPECIFICATIONS 4.3 Wiring diagram Electrical power supply 4 Pump Heating transducer 10 Flue gas thermostat Ignition and detection 11 Three-way valve Gas valve DHW NTC electrode Remote control / room Heating NTC - Max. de- 12 DHW flowmeter thermostat cable livery temperature NTC n b c r orange...

  • Page 22: Technical Data M275V.2024 Sm

    TECHNICAL SPECIFICATIONS 4.4 Technical data M275V.2024 SM 21,0 Data in d.h.w. mode (nom.Q.) Nominal heat input in heating mode (Hi) kcal/h 18057 CO2 at nom. Q. with G20 9,1 - 9,7 25,0 CO2 at min. Q. with G20 8,2 - 8,8 (nom.Q.) Nominal heat input in d.h.w.
  • Page 23 TECHNICAL SPECIFICATIONS Gas rate maximum - central heating Domestic hot water Temp. Minimum-Maximum °C 30 - 60 Methane G20 2,22 1000 Propane G31 kg/h 1,63 Maximum pressure Gas rate maximum - domestic hot water Methane G20 2,65 Minimum pressure Propane G31 kg/h 1,94 Maximum flow rate...
  • Page 24 TECHNICAL SPECIFICATIONS Other characteristics Height Width Depth Weight 29,3 Water content in boiler Min. ambient temperature °C n.a. Max. ambient temperature °C n.a. Flue gas discharges Boiler type B23P C13 C33 C43 C53 C63 C83 C93 Coaxial air/flue gas duct Ø 60/100 Twin pipe air/flue gas duct Ø...

  • Page 25: Technical Data M275V.2428 Sm

    TECHNICAL SPECIFICATIONS 4.5 Technical data M275V.2428 SM 25,0 Data in d.h.w. mode (nom.Q.) Nominal heat input in heating mode (Hi) kcal/h 21496 CO2 at nom. Q. with G20 9,1 - 9,7 29,0 CO2 at min. Q. with G20 8,2 - 8,8 (nom.Q.) Nominal heat input in d.h.w.
  • Page 26 TECHNICAL SPECIFICATIONS Gas rate maximum - central heating Domestic hot water Temp. Minimum-Maximum °C 30 - 60 Methane G20 2,65 1000 Propane G31 kg/h 1,94 Maximum pressure Gas rate maximum - domestic hot water Methane G20 3,07 Minimum pressure Propane G31 kg/h 2,25 Maximum flow rate...
  • Page 27 TECHNICAL SPECIFICATIONS Other characteristics Height Width Depth Weight 31,3 Water content in boiler Min. ambient temperature °C n.a. Max. ambient temperature °C n.a. Flue gas discharges Boiler type B23P C13 C33 C43 C53 C63 C83 C93 Coaxial air/flue gas duct Ø 60/100 Twin pipe air/flue gas duct Ø...

  • Page 28: Technical Data M275V.2832 Sm

    TECHNICAL SPECIFICATIONS 4.6 Technical data M275V.2832 SM 27,5 Data in d.h.w. mode (nom.Q.) Nominal heat input in heating mode (Hi) kcal/h 23646 CO2 at nom. Q. with G20 9,1 - 9,7 32,0 CO2 at min. Q. with G20 8,2 - 8,8 (nom.Q.) Nominal heat input in d.h.w.
  • Page 29 TECHNICAL SPECIFICATIONS Gas rate maximum - central heating Domestic hot water Temp. Minimum-Maximum °C 30 - 60 Methane G20 2,91 1000 Propane G31 kg/h 2,14 Maximum pressure Gas rate maximum - domestic hot water Methane G20 3,39 Minimum pressure Propane G31 kg/h 2,49 Maximum flow rate...
  • Page 30 TECHNICAL SPECIFICATIONS Other characteristics Height Width Depth Weight 31,3 Water content in boiler Min. ambient temperature °C n.a. Max. ambient temperature °C n.a. Flue gas discharges Boiler type B23P C13 C33 C43 C53 C63 C83 C93 Coaxial air/flue gas duct Ø 60/100 Twin pipe air/flue gas duct Ø...

  • Page 31: Hydraulic Characteristics

    TECHNICAL SPECIFICATIONS 4.7 Hydraulic characteristics condensate exchanger. The by-pass is calibrated for a differential The hydraulic characteristics represent the pressure of approx. 0.3-0.4 bar. pressure (head) available in the heating system based on the flow rate. 4.8 Expansion vessel Model M275V.2024 SM The difference in height between the safety Pressure (bar) valve and the highest point in the system...

  • Page 32: Installation

    INSTALLATION INSTALLATION The combustion products may only be dis- charged using the flue gas exhaust kits pro- 5.1 Warnings vided by the manufacturer, as they are an in- tegral part of the boiler. Protective gloves must be worn. For LPG gas (Propane G31), the installation must also comply with the requirements of the The unit must discharge the com- distributing companies and with the require-...

  • Page 33: Precautions For Installation

    INSTALLATION 5.2 Precautions for installation cleans the system but also provides anti-cor- rosion protection by forming a protective film Follow these installation instruc- on the metal surfaces and neutralising the tions: gases in the water. • Mount the boiler on a strong wall. •...

  • Page 34: Dimensions

    INSTALLATION 5.4 Dimensions 5.5 Fittings The boiler complies with the following dimen- The boiler uses the following fittings: sions: Cock Pipe ø Ø 16/18 A Flue gas exhaust / air suction (coaxial Ø Ø 12/14 100/60) B Flue gas exhaust (Ø 80 twin pipe) G 3/4 MF Ø...
  • Page 35 INSTALLATION • Carry out a leakage test for the gas supply CORRECT implementation of a wall-mount- ed concentric discharge system system. • Connect the safety valve discharge 8 (Fig- ure 5.4) to an outlet funnel. Figure 5.5 A = air suction S = flue gas outlet CORRECT implementation of twin flue gas outlet/air suction systems...

  • Page 36: Flue Gas Outlet Dimensions And Lengths

    INSTALLATION INCORRECT implementation of twin flue The following kits are available for connection gas outlet/air suction systems to the boiler: Wall-mounted flue gas outlet kit (Figure 5.8 This kit is used to release flue gases through the wall behind or to the side of the boiler. Coaxial duct Ø...
  • Page 37 INSTALLATION reduce the maximum length of the flue gas duct by: For a 45° elbow loss 0.5 m 90° For a 90° elbow loss Twin pipe suction discharge duct kit Ø 80 mm - (Figure 5.9 - Figure 5.10) 45° This kit is used to separate the flue gas outlet from the air suction.
  • Page 38 INSTALLATION 24 kW Useful static pressure at 28 kW nominal heat input 32 kW 90° 24 kW °C Overheated flue °C 28 kW 32 kW °C 24 kW 45° Ø 125 Maximum recirculation of 28 kW CO2 in the suction duct 32 kW Figure 5.13 TYPE C...

  • Page 39: C 63

    INSTALLATION low cavity between the secondary flue, ex- haust flue or ducted pipe and the internal wall of the technical cabinet must only be used for this system exclusively. All components must be made from materials with class A1 reaction to fire according to stan- dard UNI EN 13501-1.

  • Page 40: Positioning The Draught Terminals

    INSTALLATION 5.10 Positioning the draught termi- For every tee connection, subtract 1.7 m from nals the total length. For double-walled pipes in corrugated propyl- The draught terminals must: ene or corrugated stainless steel, reduce the • be positioned on the outer perimeter walls of effective length by 15%.

  • Page 41: Electrical Connections

    INSTALLATION Figure 5.16 5.11 Electrical connections • Undo the screws L and remove the front panel M by pulling it towards you and then pushing it upwards in order to release it from the top fastenings Figure 5.17. Figure 5.17 •...

  • Page 42: Connecting A Room Thermostat Or Zone Valves

    INSTALLATION 5.12 Connecting a room thermostat or (Figure 5.18). zone valves Connect the cable for the room thermostat with a label in Figure 5.20. Do not connect live cables to the room thermostat cable. Figure 5.18 Connecting to the electric power supply grid Figure 5.20 •...

  • Page 43: Electrical Connection Of The Remote Control

    INSTALLATION Figure 5.20 to connect the zone valves. The message Cod, indicating entry into “param- electric conductors on the zone valve micro eter Cod” (Figure 5.24), and then displays contacts must be connected to the ambient three dashes “- - -”. thermostat cable wires as shown in Figure 5.21.

  • Page 44: Installing The External Temperature Sensor

    INSTALLATION 00 = Room thermostat 01 = Remote control Boiler side RESET Figure 5.26 • Press 12 or 13 (Figure 5.22) to confirm the value entered and return to the list of param- eters (Figure 5.25). Volt-free contacts for the ambient •...
  • Page 45 INSTALLATION 17 and 18 for 5 seconds at the same time Delivery temperature °C (25-85°C) (Figure 5.31). The code P00 appears on the display, indicating entry into “parameter P00” (Figure 5.32). External temperature °C K=0.2 K=0.5 K=0.8 K=1.0 K=1.5 K=2.0 K=2.5 K=3.0 K=A52...
  • Page 46 INSTALLATION efficient. If the room temperature is not comfortable, RESET you can increase or decrease the heating system delivery temperature by ± 5°C using the 15 (decrease) and 16 (increase) buttons (Figure 5.31). Figure 5.34 With heating temperature setting 25-85°C •...

  • Page 47: Selecting The Maximum Heating

    INSTALLATION Delivery temperature °C (50-80°C) + 5 °C - 5 °C Figure 5.39 • Press 12 and hold until the LCD display External temperature °C K=2.0 shows the code A52, indicating entry into Figure 5.38 “parameter A52” (Figure 5.40). 5.19 Selecting the maximum heating temperature setpoint with the cli- RESET matic curve set...

  • Page 48: Setting Pump Post-Circulation

    INSTALLATION imum of 55°C. of each heat request. This time can be programmed from a mini- • Enter “programming mode” by following the mum of zero to a maximum of 99 seconds. procedure indicated in section "Accessing installer parameters" on page 43. •...

  • Page 49: Selecting Re-Ignition Frequency

    INSTALLATION RESET RESET Figure 5.46 Figure 5.48 • Use 15 or 16 to change the value of param- • Scroll through the various parameters using eter 03 from 0 to 99 seconds. 12 or 13 until the LCD display shows the •...

  • Page 50: Factory Reset

    INSTALLATION 5.23 Factory reset 5.24 Examples of hydraulic systems with hydraulic separator (option- RESET restores all parameters to the factory settings. The hydraulic separator creates a reduced load loss zone that makes the primary circuit • Enter “programming mode” by following the and secondary circuit hydraulically indepen- procedure indicated in section "Accessing dent.
  • Page 51 INSTALLATION High temperature zone + 2 low temperature zones. External probe temperature 1 Hight temperature 2 temperature Figure 5.54 - 51 -...

  • Page 52: Preparation For Service

    PREPARATION FOR SERVICE PREPARATION FOR SERVICE 6.1 Warnings Before performing the opera- tions described below, make sure that the installed multi-way switch is in the off position. 6.2 Sequence of operations Gas supply Closed • Open the cock for the gas meter and for position the boiler 7 in Figure 6.1.
  • Page 53 PREPARATION FOR SERVICE • Fill the heating circuit, see section "Filling • Press and hold 17 until both symbols the heating circuit" on page 14. appear on the display. • Bleed the radiators and the various high points of the installation, then close any manual bleeding devices again.
  • Page 54 PREPARATION FOR SERVICE • Show the user how to use the appliance correctly and also explain: - ignition; - shut off; - making adjustments. The user is responsible for keeping the documentation together and intact, and within reach for consultation. - 54 -...

  • Page 55: Checking The Gas Setting

    CHECKING THE GAS SETTINGS CHECKING THE GAS SETTING Flue gas intake 7.1 Warnings Each time after measuring the gas pressure, fully close all tap- ping points that were used. After each gas adjustment, the valve adjustment components must be sealed. Figure 7.1 Warning: risk of electrocution.
  • Page 56 CHECKING THE GAS SETTINGS flue gas analyser with the one in the “Data in DHW mode” table and the values of at Q.min. section "Technical data RESET M275V.2024 SM" on page 22, "Techni- cal data M275V.2428 SM" page 25 and "Technical data M275V.2832 SM"...
  • Page 57 CHECKING THE GAS SETTINGS RESET RESET Figure 7.9 Figure 7.12 • Scroll through the various parameters us- • Press 17 (Figure 7.2) to exit “program- ing 12 or 13 until the LCD display shows ming mode” (Figure 7.13). the code P06, indicating entry into “pa- rameter P06”...
  • Page 58 CHECKING THE GAS SETTINGS • Close the domestic hot water cocks. • Turn the boiler off by pressing 17 (Figure 7.2) until the message OFF appears on the LCD display (Figure 7.14). RESET Figure 7.14 During the operations to check maximum and minimum pressure at the burner, check the flow rate of gas to the meter and com- pare its value with the gas flow rate data;...

  • Page 59: Gas Conversion

    GAS CONVERSION GAS CONVERSION • Convert the type of gas by correct- ly replacing the gas diaphragm (Figure 8.1 Warnings 8.2), referring to section "Technical data M275V.2024 SM" on page 22, "Techni- The operations to adapt the boil- cal data M275V.2428 SM" page 25 and er to the type of gas available must be carried out by an autho- "Technical data M275V.2832 SM"...
  • Page 60 GAS CONVERSION • Reposition the control panel and reas- semble the front panel of the body. • Apply the label indicating the type of gas and the pressure value for which the unit is set. The self-adhesive label is included in the conversion kit.

  • Page 61: Maintenance

    MAINTENANCE MAINTENANCE els E and F by pulling them outwards and forwards to release them from the rear sup- 9.1 Warnings ports. Protective gloves must be worn. Cool down the appliance by shutting off the gas cock and withdrawing a large quantity of water by opening the system's DHW cocks.

  • Page 62: Emptying The Dhw Circuit

    MAINTENANCE OPEN Heating circuit drain cock CLOSED Figure 9.4 • To make draining easier, unscrew the au- tomatic bleed valve cap 24 in Figure 9.5. Figure 9.3 9.3 Emptying the DHW circuit • Close the installed DHW inlet cocks . •...

  • Page 63: Cleaning The Primary Condensate Exchanger And The Burner

    MAINTENANCE 9.5 Cleaning the primary conden- sate exchanger and the burner Removing the burner fan unit 38 in Figure 9.6. Figure 9.7 • Loosen the nuts K and remove the fan burner unit 38 (Figure 9.6). • Extract the burner casing by pulling it out- wards.

  • Page 64: Check The Pressure In The Heating

    MAINTENANCE be replaced every 2 years. tank pressure is not less than 1 bar. If the pressure is lower, correct the pres- sure. 9.7 Cleaning the domestic hot wa- ter exchanger Descaling the domestic hot water exchang- er will be assessed by a technician from an Authorised Service Centre, who will perform the cleaning using specific products.

  • Page 65: Checking The Condensate Discharge Siphon

    MAINTENANCE ting the boiler's chimney sweep function" Model M275V.2832 SM on page 66) • Check the boiler combustion using the Nominal heat input in d.h.w. mode kW 32,0 outlets located on the flue pipes (Figure Nominal efficiency in d.h.w. mode % 97,9 9.10) and compare the data measured Combustion efficiency...

  • Page 66: Setting The Boiler's Chimney Sweep Function

    MAINTENANCE Figure 9.15 RESET Figure 9.16 Chimney sweep function at minimum output in domestic hot water mode • Scroll through the various parameters us- ing 12 or 13 until the LCD display shows Figure 9.14 the code P06, indicating entry into “pa- rameter P06”...

  • Page 67: Settings For Changing The Control Board

    MAINTENANCE • Press 16 and the LCD display shows the number 01, indicating activation of the “chimney sweep function” at minimum RESET output (Figure 9.19). • Press 12 (Figure 9.15) to confirm the val- ue entered and activate the function. Figure 9.21 RESET Exiting the chimney sweep function...
  • Page 68 MAINTENANCE RESET Figure 9.26 • Use 15 or 16 (Figure 9.23) to change the value of parameter P10 (Figure 9.27): Figure 9.23 03 = M275V.2024 SM 04 = M275V.2428 SM 05 = M275V.2832 SM RESET RESET Figure 9.24 Figure 9.27 •...
  • Page 69 MAINTENANCE RESET RESET Figure 9.29 Figure 9.32 • Press 12 and hold until the LCD display • Use 15 or 16 (Figure 9.23) to change the shows the code P09, indicating entry into value of parameter A01 (Figure 9.33). “parameter P09” (Figure 9.30). 00 = Methane gas (G20) 01 = Propane gas - LPG (G31) RESET...
  • Page 70 MAINTENANCE rameters (Figure 9.34). • Press 12 and hold until the LCD display RESET shows the code A12, indicating entry into “parameter A12” (Figure 9.35). Figure 9.38 RESET • Press 12 (Figure 9.23) to confirm the val- ue entered and return to the list of param- eters (Figure 9.37).

  • Page 71: Boiler Disposal And Recycling

    BOILER DISPOSAL AND RECYCLING BOILER DISPOSAL AND RECY- CLING The boiler and any accessories must be disposed of correctly, recycling the different materials where possible. The installer must dispose of the packaging used to transport the boiler. Please observe the regulations currently in force regarding re- cycling and disposing of the boiler and any accessories.
  • Page 72 33170 PORDENONE (Italy) – Via Pravolton, 1/b +39 0434.238311 www.biasi.it This manual replaces previous versions. In order to constantly improve its products, BSG Caldaie a Gas S.p.A. reserves the right to change the data provided in this manual at any time and without notice.

This manual is also suitable for:

Rinnova cond 28sRinnova cond 32s

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