Biasi M300V.2025 SM User Manual And Installation Instructions
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Biasi M300V.2025 SM User Manual And Installation Instructions

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Wall hung, fanflue, roomsealed, high efficiency gas boiler
User manual and
Installation instructions
RINNOVA ADAPTIVE
Models
M300V.2025 SM
M300V.2530 SM
M300V.3035 SM
G.C. Appl. No.
47-583-46
47-583-47
47-583-48
COMBI BOILER
COMBI BOILER
COMBI BOILER

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CE tanusítvány
January 31, 2025

Biasi M300 3035 V

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1 comments:
Mr. Anderson
May 14, 2025

The Biasi M300V.3035 SM is a condensing combination boiler used for space heating and domestic hot water (D.H.W.). It has a rated heat output of 31 kW and a seasonal space heating energy efficiency of 94%. It operates with high efficiency, reaching up to 99% at 30% load in low-temperature conditions. It uses gas types G20 or G31 and includes components such as a burner, condensing heat exchanger, electronic control board, fan, gas valve, and heat exchangers for both central heating and domestic hot water.

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Summary of Contents for Biasi M300V.2025 SM

  • Page 1 Wall hung, fanflue, roomsealed, high efficiency gas boiler User manual and Installation instructions RINNOVA ADAPTIVE Models G.C. Appl. No. M300V.2025 SM 47-583-46 COMBI BOILER M300V.2530 SM 47-583-47 COMBI BOILER M300V.3035 SM 47-583-48 COMBI BOILER...
  • Page 2 This allows a gain of useful heat that otherwise would be lost. Biasi UK Ltd is a licensed member of the Benchmark Scheme which aims to improve the standards of installation and commissioning of domestic heating and hot water systems in the UK and to encourage regular servicing to optimise safety, efficiency and performance.
  • Page 3 Remember that... The manual must be read thoroughly, so that you will be able to use the boiler in a safe and sensible way and must be carefully kept. It may be necessary for reference in the future. The first firing must be carried out by a competent and responsible Gas Safe engineer. The manufacturer •...
  • Page 4 On completion of the work, have a professionally qualified person check there efficiency. Repairs (under guarantee) must be carried out only by a Biasi an approved engineer, us- ing genuine spare parts. Thus do no more than switching off the boiler yourself (see the instructions).
  • Page 5 Should you find that it does include a non-return valve then provision of a WRAS approved mini expansion vessel must be made. Biasi optional WRAS approved easy fit 15 mm mini shock arrestor kit BI9999 999 can be obtained through your local Biasi stockist.
  • Page 6 D.H.W. If you are in any doubts as to the installation or operation of the boiler please read the instruction manuals thoroughly and then if necessary contact Biasi UK for advice and as- sistance.

  • Page 7: Table Of Contents

    10.3 Dismantling the external panels ... . 77 Technical data M300V.2025 SM ... . 28 10.4 Reassembly the external panels ... 78 Technical data M300V.2530 SM .

  • Page 8: Appliance Description

    APPLIANCE DESCRIPTION APPLIANCE DESCRIPTION Isolation valves Overview The model and serial number of the boiler is Install a shut-off cock for the shown on the bottom of the boiler. D.H.W. inlet. The figures in this manual only show one of the possible ways of installing cocks, pipes and fit- tings.

  • Page 9: Control Panel

    APPLIANCE DESCRIPTION Control panel Fig. 1.3 12 D.H.W. temperature increase key 13 D.H.W. temperature reduce key 14 Reset/Stand-by/Winter/Summer key 15 C.H. temperature reduce key 16 C.H. temperature increase key 17 LCD display RESET that takes all parameters back to the factory value occurs only setting "parameter...

  • Page 10: Lcd General Features

    APPLIANCE DESCRIPTION LCD general features Stays on: flame present For the boiler technical information refer to Flashing: drain upon ignition in the section "TECHNICAL INFORMATION" progress. on page 24. Stays on: maintenance due pre-warning. Flashing: maintenance quired or maintenance due. Stays on: lockout error.
  • Page 11 APPLIANCE DESCRIPTION FUNCTION FUNCTION Anomaly due to prob- External NTC probe E08 + E24 + able chimney obstruc- failure. tion Flame loss for more Lockout due to tripping E25 + E10 + than consecutive of the flue gas probe times. and thermal fuse.
  • Page 12 APPLIANCE DESCRIPTION FUNCTION FUNCTION Maintenance overdue. System out modulator E79 + In the event of an error, control parameters this has greater priority than maintenance due Internal error (usually date. hardware) or problems E89 + with the mains electri- cal supply (excessive distortion of waveform).
  • Page 13 APPLIANCE DESCRIPTION FUNCTION FUNCTION Constantly illuminated: Heating set tempera- solar control unit con- ture nected. (all other symbols are When the symbol disabled). flashes, the solar circuit pump is in operation. D.H.W. set temperature (all other symbols are disabled). Delay burner ignition due to system setting (flashing uu + flashing temperature).

  • Page 14: Instructions For Use

    Warnings Therefore, when the boiler is not lit or used in cold weather, with consequent risk of Biasi UK Ltd support the Benchmark freezing do not switch off the boiler at the initiative. The Benchmark Checklist is fused spur isolation switch or close the gas located at the back of this manual and inlet cock.

  • Page 15: Ignition

    INSTRUCTIONS FOR USE Fig. 2.2 • Open the valves on the filling loop and, at Open the same time, check the heating circuit position pressure on the display. The pressure must be between 1 bar and Fig. 2.3 1.5 bar (e.g. 1.3 bar in (Fig. 2.2). •...

  • Page 16: Circuit Temperature

    INSTRUCTIONS FOR USE C.H. / D.H.W. functioning ature (primary circuit) and the symbol • Press the key 14 for 1 second until both Fig. 2.8. symbols appear on the dis- play Fig. 2.5. Fig. 2.8 C.H. circuit temperature The output temperature of C.H. water can be adjusted by pressing keys 15 (reduce) and 16 (increase) (Fig.

  • Page 17: Temperature

    INSTRUCTIONS FOR USE from your boiler at all times on the LCD screen. Power request in C.H. power. When the boiler has a call for heat in the C.H. mode, the symbol is displayed on Fig. 2.11 the display followed by an increase of the C.H.

  • Page 18: Switching Off

    INSTRUCTIONS FOR USE in process. • Switch off the electricity supply to the boil- er, by means of the fused spur isolation switch; • Shut off the gas supply cock and the valves for the water circuits fitted under the boiler Fig. 2.16; Fig.

  • Page 19: Useful Advice

    USEFUL ADVICE USEFUL ADVICE Therefore, when the boiler is not lit and used in cold weather, with consequent risk Central Heating of freezing do not switch off the boiler at the fused spur isolation switch or close the gas For your comfort and added system control, inlet cock.

  • Page 20: External Cleaning

    USEFUL ADVICE tion. the condensate drainage pipe and traps for Please refer to the servicing information on cleanness. section "MAINTENANCE" on page 76. Press the reset key on the boiler control panel 14 (Fig. 3.1) to reset its functioning. External cleaning In this case and in case of per- sistent lock-out call a compe- Before carrying out any clean-...

  • Page 21: Displaying In Info Mode

    USEFUL ADVICE the power supplied by the boiler. relief valve to open. So that this does not E.g.: D.H.W. exchanger clogged with lime happen and to decrease the pressure to a scale. This happens only when the boiler normal value, it is advisable to vent some of has a request for D.H.W..

  • Page 22: Remote Anomaly Code

    USEFUL ADVICE Offset climatic curve value J03 + value Calculated heating set point (with climatic curve or set J04 + value configured) Temperature NTC delivery J05 + value Temperature NTC return J06 + value Domestic set J07 + value Temp. D.H.W. input J08 + --- (if foreseen) Temp.

  • Page 23: Flue Probe And Safety Thermal Fuse

    USEFUL ADVICE Flue probe and safety thermal fuse If the flue thermal cut-off fuse is triggered, the boiler goes into safety lockout. To restore nor- mal boiler operation, please contact an Authorized Service Centre. The flue probe and safety thermal fuse 18 indicated in Fig.

  • Page 24: Technical Information

    TECHNICAL INFORMATION TECHNICAL INFORMATION Overview 39 31 Fig. 4.1 - 24 -...

  • Page 25: Main Diagram

    TECHNICAL INFORMATION Main diagram Fig. 4.2 3 Condensate drain pipe 18 Flue temperature probe NTC and Safety 4 C.H. flow valve thermal fuse 5 D.H.W. outlet pipe 19 C.H. temperature return probe NTC 6 Gas inlet valve 20 Condensing heat exchanger 7 C.H.
  • Page 26 TECHNICAL INFORMATION 23 C.H. pressure relief valve 24 Automatic air purger valve 25 Pump 26 Pump vent plug 27 Gas valve inlet test point 28 Gas valve 29 Gas valve outlet test point 30 D.H.W. temperature probe NTC 31 Primary circuit pressure switch 32 Condensate trap 33 D.H.W.

  • Page 27: Hydraulic Specifications

    The by-pass is calibrated to a differential heating system) as a function of the flow pressure of about 0.3-0.4 bar. rate. Expansion vessel Model M300V.2025 SM Note: this boiler is designed for opera- Pressure (bar) tion only in a sealed central heating sys- 0.55 0.50...

  • Page 28: Technical Data M300V.2025 Sm

    TECHNICAL INFORMATION Technical data M300V.2025 SM Heat input Central heating 21,0 Min/Max flow temperature settings* °C 25 - 80 Nominal net central heating BTU/h 71655 Maximum pressure 26,0 Nominal net domestic hot water BTU/h 88716 Minimum pressure 23,3 Nominal gross...
  • Page 29 TECHNICAL INFORMATION Gas supply pressures Flue design mbar Boiler type 2000 B23P C13 C33 C43 C53 C63 C83 C93 Natural G20 1700 Ø Coaxial 60/100 2500 Ø Twin split pipes 80/80 3700 Ø Roof 60/100 Propane G31 2500 Ø Roof 80/125 4500 Nominal heat flow rate...
  • Page 30 TECHNICAL INFORMATION contents - domestic hot water Nominal heat input 26,0 (A) (E) content with gas G20 (range 8,5 - 9,5 min - max) content with gas G31 (range 9,6 - min - max) 10,6 Minimum heat input (A) (E) content with gas G20 (range 8,5 - 9,5 min - max)
  • Page 31 TECHNICAL INFORMATION Model(s): M300V.2025 SM Condensing boiler: Low-temperature boiler (**): B1 boiler: Cogeneration space heater: If yes, equipped with a supplementary heater: Combination heater: Item Symbol Value Unit Item Symbol Value Unit Seasonal space heating Rated heat output η energy efficiency...

  • Page 32: Technical Data M300V.2530 Sm

    TECHNICAL INFORMATION Technical data M300V.2530 SM Heat input Central heating 26,0 Min/Max flow temperature settings* °C 25 - 80 Nominal net central heating BTU/h 88716 Maximum pressure 31,0 Nominal net domestic hot water BTU/h 105776 Minimum pressure 28,9 Nominal gross central heating BTU/h 98474 32,0...
  • Page 33 TECHNICAL INFORMATION Gas supply pressures Flue design mbar Boiler type 2000 B23P C13 C33 C43 C53 C63 C83 C93 Natural G20 1700 Ø Coaxial 60/100 2500 Ø Twin split pipes 80/80 3700 Ø Roof 60/100 Propane G31 2500 Ø Roof 80/125 4500 Nominal heat flow rate...
  • Page 34 TECHNICAL INFORMATION contents - domestic hot water Nominal heat input 31,0 (A) (E) content with gas G20 (range 8,5 - 9,5 min - max) content with gas G31 (range 9,6 - min - max) 10,6 Minimum heat input (A) (E) content with gas G20 (range 8,5 - 9,5 min - max)
  • Page 35 TECHNICAL INFORMATION Model(s): M300V.2530 SM Condensing boiler: Low-temperature boiler (**): B1 boiler: Cogeneration space heater: If yes, equipped with a supplementary heater: Combination heater: Item Symbol Value Unit Item Symbol Value Unit Seasonal space heating Rated heat output η energy efficiency rated Seasonal energy efficiency class...

  • Page 36: Technical Data M300V.3035 Sm

    TECHNICAL INFORMATION Technical data M300V.3035 SM Heat input Central heating 31,0 Min/Max flow temperature settings* °C 25 - 80 Nominal net central heating BTU/h 105776 Maximum pressure 34,7 Nominal net domestic hot water BTU/h 118401 Minimum pressure 34,4 Nominal gross central heating BTU/h 117412 32,0...
  • Page 37 TECHNICAL INFORMATION Gas supply pressures Flue design mbar Boiler type 2000 B23P C13 C33 C43 C53 C63 C83 C93 Natural G20 1700 Ø Coaxial 60/100 2500 Ø Twin split pipes 80/80 3700 Ø Roof 60/100 Propane G31 2500 Ø Roof 80/125 4500 Nominal heat flow rate...
  • Page 38 TECHNICAL INFORMATION contents - domestic hot water Nominal heat input 34,7 (A) (E) content with gas G20 (range 8,5 - 9,5 min - max) content with gas G31 (range 9,6 - min - max) 10,6 Minimum heat input (A) (E) content with gas G20 (range 8,5 - 9,5 min - max)
  • Page 39 TECHNICAL INFORMATION Model(s): M300V.3035 SM Condensing boiler: Low-temperature boiler (**): B1 boiler: Cogeneration space heater: If yes, equipped with a supplementary heater: Combination heater: Item Symbol Value Unit Item Symbol Value Unit Seasonal space heating Rated heat output η energy efficiency rated Seasonal energy efficiency class...

  • Page 40: General Requirements

    GENERAL REQUIREMENTS GENERAL REQUIREMENTS Related documents The installation of this appliance must be in accordance with the relevant requirements of the current Gas Safe (Installation & Use) Regulations, the Local Building Regulations, the current I.E.E. Wiring Regulations, the Regulations and by-laws of the local water un- Benchmark places responsibilities on both dertaking, and in Scotland, in accordance with manufacturers and installers.

  • Page 41: Flue System

    GENERAL REQUIREMENTS guidance on this aspect. A compartment used to enclose the appliance must be designed specifically for this purpose. This appliance is not suitable for external installation. Flue system The provision for satisfactory flue termination must be made as described in BS 5440 part 1. For Ireland (IE), refer to I.S.813.2002.

  • Page 42: Gas Supply

    GENERAL REQUIREMENTS Minimum dimensions Symbol Location position (mm) Directly below an opening, air brick, opening window, etc. Above an opening, air brick, opening window, etc. Horizontally to an opening, air brick, opening window, etc. Below temperature-sensitive building components, e.g. D ** plastic gutter soil pipes or drain pipes E ** Below eaves...

  • Page 43: Air Supply

    GENERAL REQUIREMENTS Air supply If a part of the drainpipe runs externally this part should be kept as short as possible and The room in which the boiler is installed does protected to reduce the risk of freezing. not require a purpose provided air vent. Connection of condensate drainage pipe to internal soil and vent stack.

  • Page 44: Water Circulation (C.h.)

    GENERAL REQUIREMENTS Water circulation (C.H.) • A WRAS approved dry trap such as the Te- sla DTUN 1522 is utilised. Detailed recommendations are given in BS • That the condensate is connected down- 6798, BSEN 12828: 2003, BSEN 12831: 2003 stream of the trap as shown in the drawing &...

  • Page 45: Domestic Water

    GENERAL REQUIREMENTS facilitate complete filling of the system. Control valve Expansion vessel Double check valve The appliance has an integral sealed expan- Temporary sion vessel to accommodate the increase of connection water volume when the system is heated. Refer to Fig. 4.5 on page 27 for its techni- Supply pipe (cold water inlet) cal data.

  • Page 46: Electrical Supply

    GENERAL REQUIREMENTS the boiler cold supply, within the requirements of the local water company. 5.11 Electrical supply Warning, this appliance must be earthed. External wiring to the appliance must be car- ried out by a competent person and be in ac- cordance with the current I.E.E.

  • Page 47: Installation

    INSTALLATION INSTALLATION drain must be connected to a suitable drain, or discharged in a safe manner. Warnings The electrical wiring must conform with cur- The use of gas appliances is rent Regulations, in particular: subject to statutory control; it is essential to observe the current •...

  • Page 48: Installing The Bracket

    We recommend the use of a suitable Build- cert approved universal inhibitor to protect the C.H. system from corrosion. Biasi UK strongly recommend that matched - 48 -...

  • Page 49: Overall Dimensions

    INSTALLATION Overall dimensions Joints The boiler respects the following dimen- The boiler uses the following fittings: sions: Pipe sizes Functions (o.d) Ø80 Ø80 Gas, C.H. return, C.H. flow Ø 22 mm D.C.W. inlet Ø 15 mm Ø100 D.H.W. outlet Ø 15 mm Pressure relief valve Ø...

  • Page 50: Fitting The Flue System

    INSTALLATION • Connect the pipe 7 (Fig. 6.4) from the CORRECT system for installing the wall flue pressure relief valve to the safety dis- charge pipework. • Fit the condensate drain 3 (Fig. 6.4) in to the drainage pipework. • See also section "Condensate drain" on page 43 in this manual.
  • Page 51 INSTALLATION Exhaust intake split pipes kit Ø 80 mm - Type C (Fig. 6.7) - (Fig. 6.8) This kit allows the flue exhaust to be sepa- rated from the air intake. Split pipes kit Ø 80 mm Minimum length 0.5 m Maximum length (a + b) 40 m N.B: The air intake and the flue outlet...
  • Page 52 INSTALLATION Roof flue exhaust kit (Fig. 6.9) This kit exhausts directly to the roof. Ø 60/100 Ø 80/125 Coaxial pipe Nominal height 0.96 m 0.96 m 90° =--- 0,85 m Maximum height 10 m 10 m ø 60 mm Type C 45°...

  • Page 53: Electric Connection

    INSTALLATION A Plume deflector is available to assist in overcoming boundary nuisance issues. 90° =--- 0,85 m Fig. 6.13 ø 60 mm 45° =--- 0,65 m Electric connection 90° =--- 1 m • Unscrew screws "R" and remove the front panel "S"...
  • Page 54 INSTALLATION • Unscrew the screw "T" (Fig. 6.15). Electric power supply connection • Connect the electric power supply ca- ble coming from the fused spur isolation switch to the power supply terminal block of the boiler Fig. 6.17 keeping the same connections for the live (brown wire) and the neutral (blue wire).

  • Page 55: Connecting The Room Thermostat Or Zone Valves

    INSTALLATION Voltage-free contacts for the Ambient Thermostat or External Remote Control sensor Fig. 6.19 Fig. 6.18 The thermostat must be insulation class II ( ) or must be correctly connected to earth. 6.10 Connecting the room thermo- stat or zone valves Allow the cables to exit the boiler by using Use the clamps indicated in Fig.

  • Page 56: Installation Of The External Temperature Probe

    INSTALLATION micro switch contacts in clamps “A and B” Voltage-free contacts for of the ambient thermostat's terminal block the Ambient Thermostat or External as in Fig. 6.19. Remote Control sensor Remove the electric jumper between “A and B”. Allow the cables to exit the boiler by using the relevant cable clamps "X"...
  • Page 57 INSTALLATION the circuits depends exclusively on the fea- tures of the pumps flow rate. Therefore, by means of a hydraulic separa- tor, the secondary circuit's flow rate is put into circulation only when the relative pump is on. When the pump of the secondary is off, there is no circulation in the correspond- ing circuit and therefore, the entire flow rate pushed by the primary is by-passed through...

  • Page 58: Commissioning

    COMMISSIONING COMMISSIONING Warnings The commissioning of this boiler and sys- tem must only be undertaken by a Gas Safe Registered Engineer in accordance with the requirements of the Gas Safe In- stallation and Use Regulations and be ap- proved by Gas Safe. Ensure that the Benchmark Checklist is satisfactorily completed during the com- missioning process.
  • Page 59 COMMISSIONING D.H.W. & C.H. Systems. When the installation and second filling are completed turn on the C.H. system and run it until the temperature has reached the boiler operating temperature. The system must then be immediately flushed through. This procedure must be repeated twice more.

  • Page 60: Condensate Pipe And Traps

    COMMISSIONING Condensate pipe and traps The full length of the condensate pipe should be check for leaks. Before running the boiler, ensure that the built in condensate trap and any other trap in the drain system is correctly filled with water. Fill the built in condensate trap by removing the flue elbow and pour- ing a cupful of water into the flue...
  • Page 61 CO/CO (The limits for the boiler is given in "Technical Data" section (page 28 M300V.2025 SM, Checking the inlet pressure (page 32 M300V.2530 SM and (page 36 • Remove the boiler front panel, see section M300V.3035 SM: CO...

  • Page 62: Checking The Ignition Device

    COMMISSIONING symbols Fig. 7.11. The boiler will now go through an ignition se- quence and the burner will light. If after four ignition attempts (about four min- utes) the boiler does not function and a code that alternates between the letter "E" and the writing RESET appear on the LCD display, it indicates that the safety lock-out has stopped the boiler.

  • Page 63: Checking The Flue System

    81 of this manual. mentation integral and within reach for consul- Reference figures are given in the "Technical tation. Data" section, page 28 M300V.2025 SM, (page 32 M300V.2530 SM and (page 36 M300V.3035 SM (Flue gas figures). 7.12 Checking the condensate drain...

  • Page 64: Advanced Commissioning

    ADVANCED COMMISSIONING ADVANCED COMMISSIONING Selecting the type of external sensor The boiler is set to operate without an ex- ternal sensor. Fig. 8.3 If an external sensor (optional) IS CON- NECTED to the boiler, the correct param- • Scroll through the various parameters by eter must be set according to the type of pressing the keys 13 (back) or 15 (for- probe installed.

  • Page 65: Setting The K Coefficient Of The External Temperature Probe

    ADVANCED COMMISSIONING Delivery temperature °C PAR. VALUE DESCRIPTION Sensor not present K=1,5 (factory settings) External sensor with 12 kOhm NTC External sensor with 10 kOhm NTC K=0,5 Fig. 8.6 • Press button 14 (Fig. 8.1) to confirm the value entered. The display will show the External temperature °C following (Fig.
  • Page 66 ADVANCED COMMISSIONING Fig. 8.10 • Scroll through the various menus by pressing the keys 13 (back) or 15 (for- ward), until PAr (Parameters menu) ap- pears on the LCD display (Fig. 8.11). • Press the 14 key for 1 second to enter the Fig.

  • Page 67: Setting The Pump Post-Circulation

    ADVANCED COMMISSIONING • Press the keys 13 and 15 simultaneously This time can be changed from a minimum (Fig. 8.9) to exit the level without changing of 10 seconds to a maximum of 20 minutes the value (return to the previous level). in programming mode, using either the con- trol panel or the remote.

  • Page 68: Selecting The Reignition Frequency

    ADVANCED COMMISSIONING pressing the keys 13 (back) or 15 (for- ward), until P12, which alternates with the parameter value, appears on the LCD dis- play (Fig. 8.20). Fig. 8.22 • Press the keys 13 and 15 simultaneously (Fig. 8.17) to exit the level without chang- ing the value (return to the previous level).
  • Page 69 ADVANCED COMMISSIONING Fig. 8.23 Fig. 8.26 • Press the 14 key for 1 second (Fig. 8.23) to enter the selected parameter. The dis- play will show the following (6=60 sec- onds) (Fig. 8.27). Fig. 8.24 • Scroll through the various menus by pressing the keys 13 (back) or 15 (for- ward), until PAr (Parameters menu) ap- pears on the LCD display (Fig.

  • Page 70: Boiler Adjustment Record

    Type of primary circuit control device D.H.W. pre-heating mode Type of D.H.W. flow control device D.H.W. post- heating mode C.H. delivery maxi- D.H.W.) mum Temperature (°C) (01=M300V.2025 SM C.H. delivery minimum M300V.2530 temperature (°C) 02=M300V.3035 SM) C.H. maximum output - 70 -...
  • Page 71 ADVANCED COMMISSIONING PARAMETER DIGIT VALUES PARAMETER DIGIT VALUES Adjusting output pow- Size shown on the dis- er in D.H.W. mode (%) play during operation (0=T.CH or T.DHW, Adjusting maximum 1=only T.CH, 2=only D.H.W. temperature in T.DHW, 3=CH pres- anti-legionella function sure, 4=T.ext) (°C) (only for boilers with a sensor)
  • Page 72 Fig. 8.33 • Press the 14 key for 1 second (Fig. 8.30) to enter the selected parameter. The display will show the following (13=M300V.2025 SM, 14=M300V.2530 SM or 15=M300V.3035 SM) (Fig. 8.34). Fig. 8.31 • Scroll through the various menus by...
  • Page 73 ADVANCED COMMISSIONING PARAMETER VALUE G20 = 00 Gas type G31 = 01 User interface Type of D.H.W. ex- changer Type of primary circuit control device Type of D.H.W. flow control device D.H.W. post-heat- ing mode (at end of D.H.W.) (M300V.2025 SM - M300V.2530 SM) D.H.W.

  • Page 74: Gas Conversion

    GAS CONVERSION GAS CONVERSION • Scroll through the various menus by pressing the keys 13 (back) or 15 (for- Warnings ward), until PAr (Parameters menu) ap- pears on the LCD display (Fig. 9.3). The commissioning of this boiler and • Press the 14 key for 1 second to enter the system must only be undertaken by a selected menu.
  • Page 75 GAS CONVERSION level Fig. 9.4). • Scroll through the various menus by pressing the keys 13 (back) or 15 (for- ward), until CAF appears on the LCD dis- play Fig. 9.8). Fig. 9.8 Fig. 9.5 For calibration, see the instructions given in •...

  • Page 76: Maintenance

    MAINTENANCE MAINTENANCE 10.1 Warnings The procedures detailed in this chapter must be carried out only by a Gas Safe Registered Engineer. Thus you are ad- vised to contact an Authorised Service Agent. For Ireland (IE), the servicing work must be carried out by a competent RGII reg- istered Person.

  • Page 77: Dismantling The External Panels

    MAINTENANCE Fig. 10.6 To exit the parameters menu: • wait 15 minutes without pressing any key; • switch off the electric power supply; • press the 13 and 15 keys simultaneously for 5 seconds (Fig. 10.1) (return to previ- Fig. 10.4 ous level).

  • Page 78: Reassembly The External Panels

    MAINTENANCE 10.4 Reassembly the external panels Side panels Fit the external panels "E" and "G" in the reverse order to that described on section "Dismantling the external panels" on page Front panel • Fit the front panel "D" in the reverse order to that described on section "Dismantling the external panels"...

  • Page 79: Cleaning The Condensing Primary Exchanger And The Burner

    MAINTENANCE indicated in Fig. 10.11. CLOSED Main circuit drain valve OPEN Fig. 10.11 • To make draining easier, lift the plug 24 of the automatic relief valve in Fig. 10.12. Fig. 10.13 • Remove the front panel and lower the controls panel (see "Dismantling the ex- ternal panels"...

  • Page 80: Check The Pressure Of The Heating Expansion

    MAINTENANCE Fig. 10.14 Fig. 10.15 • The detection electrode "P" in Fig. 10.14 also functions as a sensor for the correct If the condensate primary exchanger ele- drainage of the condensate. ments are dirty (notable only after removing Should the mentioned electrode come the burner body), brush them using a bristle into contact with the condensate water brush and remove the dirt using a suction...
  • Page 81 (Fig. 10.16) and compare the data measured with that following. 10.9 Cleaning the domestic hot water exchanger Model M300V.2025 SM Descaling the domestic hot water exchang- Nominal heat input 21,0 (A) (E) er will be valued by an approved Service...
  • Page 82 MAINTENANCE Model M300V.3035 SM Nominal heat input 31,0 (A) (E) Nominal efficiency 98,8 Combustion efficiency Air index Flue gas CO content 8,5 - 9,5 Flue gas O content Flue gas CO content Flue gas temperature °C 78,0 Values refer to tests with a an 80 mm double exhaust split by 1 + 1 m and natural gas G20 and a supply / return heating temperature of 60°/80°C.

  • Page 83: Setting The Boiler Flue Sweep Function

    MAINTENANCE 10.16 Setting the boiler flue sweep Flue sweep function at minimum output function in domestic hot water mode • Press keys 13 and 15 (Fig. 10.21) at the With the boiler set in flue sweep mode, it is same time until the LCD display displays possible to exclude some boiler automatic the letters LP that alternate with the heat- functions making check and control opera-...
  • Page 84 MAINTENANCE Flue sweep function at maximum output • Press keys 13 and 15 simultaneously in heating mode (Fig. 10.21) for 1 second to exit "chimney • Press key 15 to vary the output in chimney sweep mode" and return to the menu list. sweep mode: when the LCD display dis- plays the letters cP that alternate with the To exit the parameters menu:...

  • Page 85: Benchmark Commissioning

    Benchmark Commissioning & Warranty Validation Service Record It is a requirement that the boiler is installed and commissioned to the manufacturers’ instructions and the data fields on the commissioning checklist completed in full. To instigate the boiler warranty the boiler needs to be registered with the manufacturer within one month of the installation.

  • Page 86: Gas Boiler System Commissioning Checklist & Warranty Validation Record

    GAS BOILER SYSTEM COMMISSIONING CHECKLIST & WARRANTY VALIDATION RECORD Address: Boiler make and model: Boiler serial number: Commissioned by (PRINT NAME): Gas Safe registration number: Company name: Telephone number: Company email: Company address: Commissioning date: Heating and hot water system complies with the appropriate Building Regulations? Optional: Building Regulations Notification Number (if applicable): Time, temperature control and boiler interlock provided for central heating and hot water Boiler Plus requirements (tick the appropriate box(s))

  • Page 87: Service & Interim Boiler Work Record

    SERVICE & INTERIM BOILER WORK RECORD It is recommended that your boiler and heating system are regularly serviced and maintained, in line with manufacturers’ instructions, and that the appropriate service / interim work record is completed. Service provider When completing a service record (as below), please ensure you have carried out the service as described in the manufacturers’ instructions. Always use the manufacturers’...
  • Page 88 SERVICE & INTERIM BOILER WORK RECORD It is recommended that your boiler and heating system are regularly serviced and maintained, in line with manufacturers’ instructions, and that the appropriate service / interim work record is completed. Service provider When completing a service record (as below), please ensure you have carried out the service as described in the manufacturers’ instructions. Always use the manufacturers specified spare parts.
  • Page 89 NOTES - 89 -...
  • Page 90 NOTES - 90 -...
  • Page 92 *1796234640* 17962.3464.0 4221 92A5 Biasi UK Ltd Commercial Road Leamore Enterprise Park WALSALL WS2 7NQ Sales Tel. 01922 714600 Tech. Service Tel. 01922 714636 www.biasi.co.uk...

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