MCZ DUO HYDRO-AIR Installation Manual

MCZ DUO HYDRO-AIR Installation Manual

Pellet stove
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INSTALLATION GUIDE
EN
PELLET STOVE
DUO HYDRO-AIR
Instructions in English

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Summary of Contents for MCZ DUO HYDRO-AIR

  • Page 1 INSTALLATION GUIDE PELLET STOVE DUO HYDRO-AIR Instructions in English...
  • Page 2: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS ....................II INTRODUCTION ......................1 1-WARNINGS AND WARRANTY CONDITIONS ..............2 2-FUEL ........................7 3-INSTALLATION ......................8 4-FLUE ........................9 5-DRAWINGS AND TECHNICAL FEATURES ..............16 6-INSTALLATION AND ASSEMBLY ................18 7 - HYDRAULIC CONNECTION ..................29 8-ELECTRICAL CONNECTION..................32 8-PRECAUTIONS BEFORE START-UP ................33 9 - CONTROL PANEL ....................34 10 - FIRST START-UP ....................35 11 - MENU STRUCTURE ....................38...
  • Page 3: Introduction

    REVISIONS TO THE PUBLICATION The content of this manual is strictly technical and the property of MCZ Group Spa. No part of this manual may be translated into other languages and/or adapted and/or reproduced, even in part, in other mechanical or electronic forms, photocopies, recordings or other, without the prior written authorisation from MCZ Group Spa.
  • Page 4: 1-Warnings And Warranty Conditions

    1-WARNINGS AND WARRANTY CONDITIONS SAFETY PRECAUTIONS • Installation, electrical connection, function test and maintenance must only be carried out by authorised and qualified personnel. • Install the product in accordance with all local and national legislation and regulations in force in the region or state. • Only use the fuel recommended by the manufacturer.
  • Page 5 1-WARNINGS AND WARRANTY CONDITIONS INFORMATION: Please contact the retailer or qualified personnel authorised by the company to resolve a problem. • You must only use the fuel specified by the manufacturer. • When the product is switched on for the first time it is normal for it to emit smoke due to the paint overheating for the first time. Therefore make sure the room in which it is installed is well ventilated.
  • Page 6 1-WARNINGS AND WARRANTY CONDITIONS EXCLUSIONS The guarantee does not cover malfunctions and/or damage to the appliance that arise due to the following causes: • Damage caused during transportation and/or handling • all parts that develop faults due to negligence or improper use, incorrect maintenance, installation that does not comply with the manufacturer's instructions (always refer to the installation and use manual provided with the appliance) •...
  • Page 7 1-WARNINGS AND WARRANTY CONDITIONS SPARE PARTS In the event of a malfunction, consult the retailer who will forward the call to the Technical Assistance Service. Only use original spare parts. The retailer or service centre can provide all necessary information regarding spare parts. We do not recommend waiting for the parts to get worn out before having them replaced.
  • Page 8 1-WARNINGS AND WARRANTY CONDITIONS RULES FOR INSTALLATION The product in question is a stove that uses wood pellets. Below is a list of European regulations regarding the installation of the product: EN 12828 Heating systems design. IEC 64-8 Electrical systems with rated voltage not exceeding 1000 V AC and 1500 V DC. EN 1443 General chimney regulation EN 1856-1 metal smoke ducts EN 1856-2 metal smoke extraction channels...
  • Page 9: 2-Fuel

    2-FUEL The instructions contained in this chapter explicitly refer to the regulations of the Italian installation Standard UNI 10683. In any case, always comply with the regulations in force in the country of installation. PELLETS Wood pellets are manufactured by hot-extruding compressed sawdust which is produced during the working of natural dried wood. The compactness of the material is guaranteed by the lignin contained in the wood itself and allows pellets to be produced without glue or binders.
  • Page 10: 3-Installation

    3-INSTALLATION FOREWORD The installation position must be chosen according to the room, to the smoke extraction system, to the chimney flue. Check with local authorities whether there are any restrictive regulations in force regarding the combustion air inlet, the smoke outlet system, the flue or the chimney cap.
  • Page 11: 4-Flue

    4-FLUE FOREWORD The Chimney Flue chapter has been drawn up with reference to the provisions of European Standards (EN13384 - EN1443 - EN1856 - EN1457). The chapter provides instructions for installing a chimney flue efficiently and properly, but under no circumstances is it a substitute of the Standards in force, which the qualified technician must be in possession of.
  • Page 12 3-INSTALLATION TECHNICAL CHARACTERISTICS Have the efficiency of the flue checked by an authorised technician. The flue must be sealed against flue gasses, in a vertical direction without narrowing, be made with materials impermeable to smoke, condensation, thermally insulated and suitable to resist normal mechanical stress over time (we recommend fireplaces made of A/316 or refractory material with insulated round section double chamber).
  • Page 13 3-INSTALLATION ROOF AT 60° ROOF AT 45° 45° 60° A = MIN. 2.60 metres A = MIN. 2.00 metres FIGURE 6 FIGURE 5 B = DISTANCE > 1.20 metres B = DISTANCE > 1.30 metres C = DISTANCE < 1.20 metres C = DISTANCE <...
  • Page 14 3-INSTALLATION MAINTENANCE The flue must be kept clean, since the deposit of soot or unburned oils reduces the cross-section reducing the draft and thus compromising the efficient operation of the stove and, if large build-ups accumulate, can catch fire. The flue and chimney must be cleaned and checked by a qualified chimney sweep at least once a year.
  • Page 15 3-INSTALLATION EXTERNAL AIR INLET It is mandatory to provide an adequate external air intake that supplies the combustion air required for the product to work properly. The flow of air between the outside and the installation room may be direct, through an inlet in an external wall of the room; or indirect, via air intake from adjoining rooms and connecting permanently with the installation room (see Figure 9 b).
  • Page 16 3-INSTALLATION DISTANCE (metres) The air inlet must be at a distance of: 1.5 m UNDER Windows, doors, smoke outlets, cavities, ..1.5 m HORIZONTALLY Windows, doors, smoke outlets, cavities, ..0.3 m ABOVE Windows, doors, smoke outlets, cavities, ..1.5 m AWAY from smoke outlet CONNECTION TO THE FLUE...
  • Page 17 3-INSTALLATION EXAMPLES OF CORRECT INSTALLATION 1. Installation of Ø120mm flue with hole for the passage of the pipe increased by: minimum 100 mm around the tube if next to non flammable parts such as cement, brick, etc.; or minimum 300mm around the pipe (or as required by data tags) if next to flammable parts such as wood etc.
  • Page 18: 5-Drawings And Technical Features

    5-DRAWINGS AND TECHNICAL FEATURES DRAWINGS AND CHARACTERISTICS DUO HYDRO - AIR STOVE DIMENSIONS...
  • Page 19 5-DRAWINGS AND TECHNICAL FEATURES TECHNICAL CHARACTERISTICS DUO HYDRO-AIR Nominal output power 22.3 kW (19,178 kcal/h) Nominal output power (H 18.0 kW (15,480 kcal/h) Minimum output power 4.4 kW (3,784 kcal/h) Minimum output power (H 3.0 kW (2,580 kcal/h) Efficiency at Max...
  • Page 20: 6-Installation And Assembly

    6-INSTALLATION AND ASSEMBLY PREPARATION AND UNPACKING The packaging consists of a recyclable cardboard box according to RESY standards, recyclable EPS foam inserts, wooden pallets. All packaging materials can be reused for similar use or eventually disposed of as urban solid waste, in compliance with the regulations in force.
  • Page 21 6-INSTALLATION AND ASSEMBLY The stove body or unit must always be kept in a vertical position when handled, and handled using carts only. Pay particular attention to the door and its glass, protecting them from mechanical knocks that would compromise their integrity. The product must always be handled with care.
  • Page 22 6-INSTALLATION AND ASSEMBLY ASSEMBLING THE FRONT AND SIDE CLADDING The stove is delivered with all ceramic parts packaged and therefore, before installing the side tiles and the top, it is necessary to insert the front panels. In order to insert the front panel it is necessary to work on the right side of the stove (handle side) and proceed as follows: •...
  • Page 23 6-INSTALLATION AND ASSEMBLY • Lift profile “A” to remove it from the base and place it in a safe position (fig.5) FIGURE 5 - REMOVAL OF PROFILE A Technical Dept. - All rights reserved - Reproduction is prohibited...
  • Page 24 6-INSTALLATION AND ASSEMBLY • Take the two front ceramic pieces “F” and “G” and insert them on the right (handle side) towards the left so that they fit exactly in the seat (fig.6) FIGURE 6 - ASSEMBLY OF FRONT CERAMIC PANELS “F” - “G”...
  • Page 25 6-INSTALLATION AND ASSEMBLY • After inserting ceramic pieces “F” and “G”, reinsert profile “A”, bracket “E” tightening the two screws “d” (fig.7). FIGURE 7 - ASSEMBLY OF PROFILE “A” AND BRACKET “E” Technical Dept. - All rights reserved - Reproduction is prohibited...
  • Page 26 6-INSTALLATION AND ASSEMBLY • At this point insert side ceramic pieces “R”, “S”, “T” (fig.8) sliding them from the top towards the bottom on the guide of profile “A”. ATTENTION! On the top and lower part of the ceramic tile we recommend placing small pieces of felt in order to avoid that the ceramic tiles break and also to level the spacing if necessary.
  • Page 27 6-INSTALLATION AND ASSEMBLY On the left side (opposing the handle - fig.9) remove the micro-perforated grille "B" from the structure removing the two screws "c". Insert the three ceramic pieces “U”, “V”, “Z” sliding them from the top towards the bottom on the guide of profile “A”. ATTENTION! On the top and lower part of the ceramic tile we recommend placing small pieces of felt in order to avoid that the ceramic tiles break and also to level the spacing if necessary.
  • Page 28 6-INSTALLATION AND ASSEMBLY At this point it is possible to screws the micro-perforated grilles "B" (fig.10) to the structure and proceed with top positioning. FIGURE 10 - ASSEMBLY OF GRILLES “B”...
  • Page 29 6-INSTALLATION AND ASSEMBLY ASSEMBLY OF THE CERAMIC TOP Assemble the top "K" resting it on the four top rubber supports (see details below - fig.12) of the stove. The part under the ceramic top is equipped with four small cavities corresponding with the rubber supports. FIGURE 11 - TOP ASSEMBLY FIGURE 12 - DETAIL OF TOP RUBBER SUPPORTS Technical Dept.
  • Page 30 6-INSTALLATION AND ASSEMBLY LOADING THE PELLETS Fuel is loaded from the upper part of the stove by lifting the door. Pour the pellets into the hopper. This is easier if performed in two steps: Pour half of the contents into the hopper and wait for the fuel to settle on the bottom. Then pour in the rest.
  • Page 31: Hydraulic Connection

    7 - HYDRAULIC CONNECTION PLUMBING SYSTEM CONNECTION IMPORTANT! The connection of the stove to the plumbing system must be carried out ONLY by specialized personnel who are capable of carrying out installation properly, in compliance with current standards in the country of installation. The manufacturer will not be held responsible for damage to persons or things in the event of failed operation if the aforementioned warning is not complied with.
  • Page 32 7 - HYDRAULIC CONNECTION CONNECTING THE SYSTEM Make the connections to the corresponding fittings shown in the diagram on the previous page. Make sure the pipes are not placed under tension or undersized. IT IS STRONGLY RECOMMENDED TO WASH THE ENTIRE SYSTEM BEFORE CONNECTING THE STOVE IN ORDER TO GET RID OF RESIDUES AND DEPOSITS.
  • Page 33 7 - HYDRAULIC CONNECTION END PIECE WITH A FILLING TAP (D) AND PRESSURE GAUGE (M) VENT VALVE UNDER THE TOP (ACCESSORY) WATER CHARACTERISTICS The characteristics of the water used to fill the system are very important to prevent the build-up of mineral salts and the formation of incrustations along the pipes, in the boiler and in the heat exchangers.
  • Page 34: 8-Electrical Connection

    8-ELECTRICAL CONNECTION ELECTRICAL CONNECTION First connect the power cable to the back of the stove and then to a wall socket. The main switch must only be activated to switch the stove on; otherwise, it is advisable to keep it switched off. It is recommended to disconnect the power cable when the stove is not used.
  • Page 35: 8-Precautions Before Start-Up

    8-PRECAUTIONS BEFORE START-UP GENERAL PRECAUTIONS Remove any objects that may burn from the brazier (manual, various adhesive labels or any polystyrene). Check that the brazier is positioned correctly and rests properly on the base. The first start-up may not be successful as the feed screw is empty and does not always manage to load the required amount of pellets in time to light the flame.
  • Page 36: Control Panel

    9 - CONTROL PANEL CONTROL PANEL DISPLAY MENU A - DISPLAY; indicates a series of information on the stove, as well as the identification code of any malfunction. B - Function selection key indicated by the upper display (i.e. start-up/shutdown) C - Function selection key indicated by the upper display (i.e.
  • Page 37: First Start-Up

    10 - FIRST START-UP INITIAL START-UP REV.SOFTWARE NUM BANCA DATI At initial start-up, after connecting the power cable and pressing the I/O button, the stove display will show wording for the software version and database number (after a few seconds it will move on to the next screen). If the language has already been set, the next screen will be OFF, otherwise one enters the following parameter.
  • Page 38 9 - CONTROL PANEL SCREEN OFF If a LANGUAGE has already been set, the display will go to OFF. Pressing any one of the keys (B, C, D, E) will result in the first screen showing OFF to be displayed. From this screen, pressing keys "B" and "E"...
  • Page 39: Lighting The Stove

    9 - CONTROL PANEL Lighting the stove To switch on the stove, keep the "B" (ON) key on the panel pressed. The stove starts an ignition procedure that brings the flame to a suitable level to Supply Power. MENU Supplying power The stove's power supply is signalled by "power level bars": one bar corresponds to minimum power, 5 bars to maximum power, this level is determined by the heating system heat requirements, the stove adjusts pellet loading parameters, fumes extraction and combustion air flow to comply with this requirement.
  • Page 40: Menu Structure

    11 - MENU STRUCTURE MENU STRUCTURE To enter MENU press the "E" key (MENU). MENU Next, this screen with the following functions is displayed: TEMPERATURE PROGRAMMI Sub-menu INFORMAZIONI IMPOSTAZIONI TEMPERATURE ESCI PROGRAMMES INFORMATION SETTINGS TEMPERATURE (hydro air) When accessing this function, the main screen makes it possible to set heating and sanitary water temperature (if boiler with probe configured - see menu settings input aux).
  • Page 41 CAUTION: In order to make stove use easier, MCZ supplies Timer 1 with preset weekly temperatures and times (according to the table below), while Timer 2 is available. In any case, it is possible to change times and temperatures of Timer 1 at any time.
  • Page 42 11 - MENU STRUCTURE 23:00 22:00 21:00 20:00 19:00 18:00 17:00 16:00 15:00 14:00 13:00 12:00 11:00 10:00 09:00 08:00 07:00 06:00 05:00 04:00 03:00 02:00 01:00 00:00 * T1=16°C T2=20°C T3=22°C OFF=switched off...
  • Page 43 11 - MENU STRUCTURE MANUAL This function can be activated from the menu PROGRAMME by pressing the key "C" ACTIVE. When this function is activated the stove no longer follows time programming of TIMER 1 or 2 programmes, but it keeps the temperature set in the main screen throughout the 24 hour time period.
  • Page 44: Information Menu

    12 - INFORMATION MENU INFORMATION To enter the menu INFORMATION proceed as follows: from the main/initial screen, press the "E" Menu button, scroll using the "D" arrow key, up to the Information item, press the "E" ok key, scroll again using the "D" arrow key up to software/data memory/all.memory/stove state and select the desired item, press OK using the "E"...
  • Page 45 12 - INFORMATION MENU DATA MEMORY-INFORMATION INFORMAZIONI-MEMORIA DATI ORE FUNZIONAMENTO = 100 NUMERO ACCENSIONI = 20 DATA COLLAUDO = 15/01/2013 ESCI The available data in this function are: WORKING HOURS TOTAL IGNITIONS TEST DATE ALARM MEMORY-INFORMATION It gives information about the last alarms detected. INFORMAZIONI-MEMORIA ALL.
  • Page 46 12 - INFORMATION MENU STOVE STATE-INFORMATION This menu is particularly useful if one wants to verify the stove work condition (State). From the OFF screen, press the "E" Menu button, scroll with the "D" arrow key, up to the Information item, press the ok "E" key, scroll again with the "D"...
  • Page 47: Settings Menu

    Pump Pwm • Antifreeze function • Plt sensor (not available) • Modbus com. • Display • Technical menu (accessible by a specialized MCZ technician - password required) • Active + • Fume Analysis F • Calib.Active • Calib.S.fumes • Diagnostics •...
  • Page 48 13 - SETTINGS MENU AUTOECO (Factory activated) IMPOSTAZIONI-AUTOECO SE ATTIVI L’AUTOECO, LA STUFA SI DISATTIVA ATTIVA SPEGNERA’ QUANDO NON CI SONO AUTOECO AUTOECO PIU’ RICHIESTE DI CALORE INFO ESCI The Auto eco mode turns the stove off when the heating system does not require heat depending on the menu-settings-input aux configuration.
  • Page 49 13 - SETTINGS MENU HYDRO AIR IMPOSTAZIONI-HYDRO-AIR ON = MAX POTENZA ALL’AMBIENTE HYD-AIR HYD-AIR HYD-AIR OFF=MAX POTENZA ALL’IMPIANTO AUTO AUTO=GESTIONE AUTOMATICA INFO ESCI The Hydro Air function can be activated/deactivated manually or managed automatically (factory default setting). In Hydro-Air On mode the internal three-way valve is switched so that the water, before going towards the system, passes through the front radiator, transferring heat to the environment through the fan up to 6 kW (at maximum power with water temperature at 70°C).
  • Page 50 13 - SETTINGS MENU PELLET RECIPE IMPOSTAZIONI-RICETTA PLT VARIA PERCENTUALMENTE LA VELOCITA’ +15% DELLA COCLEA PER ADATTARE LA STUFA AL TIPO DI PELLET INFO ESCI This function is for adapting the stove to the type of pellet in use. As there are many types of pellet available on the market, stove operation can vary considerably according to the quality of the fuel.
  • Page 51 13 - SETTINGS MENU CLEANING IMPOSTAZIONI-CICLO PULIZIA ATTIVA SUBITO UN CICLO DI DISATTIVA ATTIVA PULIZIA DEL BRACIERE CICLO PUL. CICLO PUL. INFO ESCI This function can only be activated while the power supply is in the following mode: from the Settings menu- press ok (E key), press the D key (arrow), scroll up to the “ciclo pulizia” (cleaning cycle) press OK (E key)- Activates/ deactivates cleaning.
  • Page 52 13 - SETTINGS MENU AUX INPUT (using one of the following parameters excludes the other) The auxiliary input allows choosing the system configuration type based on which the stove is connected. To enter the function press: from the Settings menu- press ok (E key), press the D (arrow) key and scroll up to the Aux Input item and press OK (E key). Using the “C” and “D”...
  • Page 53 13 - SETTINGS MENU • External probe It makes it possible to work with system temperature adjustment. If installing an external probe on terminals 1 and 2 (NTC 10KOhm at 25°C b=3435) water temperature is automatically calculated by the electronics based on the external temperature according to the curves shown below.
  • Page 54 13 - SETTINGS MENU • Puffer thermostat To activate this option, connect a Normally Open (N.O.) contact thermostat to points 1 and 2 of the back 9 pole terminal board. Even with this configuration the purpose of the room probe on the stove is only to control the heating system pump controlled by the potential free contact on terminals 7-8-9.
  • Page 55 13 - SETTINGS MENU HYDRO AIR STOVE PRINCIPLE DIAGRAMS The following diagrams are to be used only as a guideline. For proper connection, always follow the notes for the plumbing and heating installer. The plumbing system must meet local, regional or national requirements. Installation and verification of operation is to be performed only by specialized, authorized personnel.
  • Page 56 13 - SETTINGS MENU HYDRO STOVE WITH PUFFER CONFIGURATION 1 2 3 4 5 6 POS.1-2 = PUFFER PROBE/ THERMOSTAT 7 8 9...
  • Page 57 13 - SETTINGS MENU OUTPUT AUX IMPOSTAZIONI-USCITA AUX IMPOSTA L’INGRESSO AMBIENTE: ALLARME CALDAIA USCITA SONDA O TERMOSTATO. REMOTO IN TEMP MORSETTI 3-4 INFO ESCI The AUX output makes it possible to use a relay contact, based on the system configuration type chosen in the Aux Input menu. It acts on contact 7-8-9 of the external terminal board.
  • Page 58 13 - SETTINGS MENU ROOM INPUT IMPOSTAZIONI-INGRESSO AMB IMPOSTA L’INGRESSO AMBIENTE: SONDA TERMOSTATO COME SONDA O COME TERMOSTATO. AMBIENTE AMBIENTE (MORSETTI 3-4) INFO ESCI The room input is used to set the probe or the thermostat at terminals 3-4 of the back terminal board of the stove. The stove has the room probe set as default factory settings.
  • Page 59 13 - SETTINGS MENU PWM PUMP This function is used to set high efficiency pump speed. To enter the function press: from the Settings menu- press ok (E key), press the C-D key (arrow) and scroll up to PWM Pump, press OK (E key)- Modify the percentage using the central C and D keys, press the E key to confirm.
  • Page 60 13 - SETTINGS MENU MODBUS COM. Is a communication system that makes it possible for the stove to receive commands from a Smartphone/tablet through a Web/Wi-fi interface. To enter the function press: from the settings menu - press ok (E key), press the C-D key (arrow) and scroll up to Modbus com. and press OK (E key)- Set the address and press E key to confirm.
  • Page 61: Technical Menu

    14 - TECHNICAL MENU TECHNICAL MENU To access the technical menu you must contact the assistance centre as it requires a password. To make changes in the technical menu, enter the SETTINGS menu, press the "E" (OK) key, scroll using the “C”-”D” arrows and select Technical menu and press OK (E key)- Enter the password and press the E key to confirm.
  • Page 62: Safety Devices And Alarms

    15 - SAFETY DEVICES AND ALARMS SAFETY DEVICES The product is fitted with the following safety devices ACTIVE + Besides adjusting the stove operation, it also guarantees that the pellet loading auger is blocked if unloading or there is significant back pressure.
  • Page 63 15 - SAFETY DEVICES AND ALARMS TAMPERING WITH THE SAFETY DEVICES IS PROHIBITED If the stove is NOT used as described in this instruction booklet, the manufacturer refuses to accept any responsibility for damage to persons and property that may arise. The manufacturer furthermore refuses to accept responsibility for damage to persons and property arising from the failure to observe all the rules contained in the manual and in particular: •...
  • Page 64 15 - SAFETY DEVICES AND ALARMS ALARM ALERTS If there is an operational anomaly, the stove enters the alarm phase displaying the problem that has taken place through a code, a brief description of the alarm type and an acoustic warning. The following table describes the possible alarms indicated by the stove, associated to the respective code that appears on the panel and helpful tips to solve the problem.
  • Page 65: Safety Devices And Alarms

    15 - SAFETY DEVICES AND ALARMS WRITTEN ON THE TYPE OF PROBLEM SOLUTION DISPLAY Check that the lower compartment is clean (see dedicated stove cleaning pages) and verify that it is Faulty smoke fan. not obstructed, is clean and cancel the alarm. FLUE GAS FAN If the alarm persists, contact the service centre.
  • Page 66 15 - SAFETY DEVICES AND ALARMS SHUT DOWN If the shut down key is pressed or one of the following conditions occurs: • power request ends (Power = 0) for Ecostop, Timer, Sleep • an alarm condition occurs • water overheating occurs the stove enters the shut down and thermal cooling phase that includes automatically executing the following phases: •...
  • Page 67: Cleaning And Maintenance

    16 - CLEANING AND MAINTENANCE EXAMPLE OF A CLEAN BRAZIER EXAMPLE OF A DIRTY BRAZIER ATTENTION! All the cleaning operations of all parts must be performed with the product completely cold and the plug disconnected. The product requires little maintenance if used with certified good quality pellets. DAILY OR WEEKLY CLEANING PERFORMED BY THE USER BEFORE EACH IGNITION Clean the ash and any deposits in the brazier that could clog the air passage holes.
  • Page 68 16 - CLEANING AND MAINTENANCE CLEAN THE EXCHANGER AND THE COMPARTMENT BENEATH THE BRAZIER EVERY 2/3 DAYS Cleaning the exchanger and the compartment beneath the brazier is a simple operation but very important if the boiler is to maintain optimal performance. We therefore recommend cleaning the internal exchanger every 2-3 days, performing these simple operations in sequence: Activate the “PULIZIA”...
  • Page 69 16 - CLEANING AND MAINTENANCE CLEANING THE LOWER COMPARTMENT Clean around the brazier “C”. Remove the tray “D” and the brazier “C”. Loosen the screws and remove the fumes plug “E” and using the nozzle of a vacuum cleaner, remove any ash and soot that may have built up in the lower exchanger indicated by the arrow. Before putting the cap “E”...
  • Page 70 16 - CLEANING AND MAINTENANCE PERIODIC CLEANING PERFORMED BY A QUALIFIED TECHNICIAN CLEANING THE EXCHANGER AND PIPE UNIT In order to clean the exchanger and the pipe unit, while the stove is cold, proceed in the following manner: 16 14...
  • Page 71 16 - CLEANING AND MAINTENANCE • Remove the top “1” • Remove the 4 screws “2” • Remove the two profile supports “3” To avoid removing the entire cladding, block the two front profiles with two clamps “4”. • Remove the four screws “5” and as a result remove the two plates of the turbulator rods “6” •...
  • Page 72 16 - CLEANING AND MAINTENANCE CHECKING THE INTERNAL COMPONENTS ATTENTION! The internal electromechanical components must only be checked by qualified personnel whose technical expertise includes combustion and electricity. We recommend that an annual maintenance service is carried out (with a scheduled service contract). This service is essentially a visual and functional inspection of the internal components.
  • Page 73: 17-Faults/Causes/Solutions

    17-FAULTS/CAUSES/SOLUTIONS CAUTION: All repairs must be carried out exclusively by a specialised technician, with the stove completely cold and the electric plug pulled out. ANOMALY POSSIBLE CAUSES SOLUTIONS The pellets are not fed into the combustion The pellet hopper is empty Fill the hopper with pellets chamber.
  • Page 74 17-FAULTS/CAUSES/SOLUTIONS ANOMALY POSSIBLE CAUSES SOLUTIONS The stove runs for a few minutes and then Start-up phase is not completed Repeat start-up goes out Temporary power cut Wait for the automatic restart Clogged smoke duct Clean the smoke duct Faulty or malfunctioning temperature Check and replace the probes probes Pellets accumulate in the brazier, the glass...
  • Page 75 17-FAULTS/CAUSES/SOLUTIONS ANOMALIES RELATED TO THE HYDRAULIC CIRCUIT ANOMALY POSSIBLE CAUSES SOLUTIONS Incorrect combustion adjustment Check recipe No increase in temperature with stove in operation Boiler / system dirty. Check and clean the boiler Insufficient stove power Check that the stove is properly sized for the requirements of the system Poor pellet quality Use pellets from the producer...
  • Page 76: 18-Circuit Board

    18-CIRCUIT BOARD 21 bis 13 14 15 MOTHERBOARD WIRING KEY AUX RELAY (C-NO-NC) 14. SERIAL COMMUNICATION HOME AUTOMATION CONTACT 15. PWM PUMP CONTROL ROOM PROBE 16. CONTROL PANEL INPUT AUX 17. WATER TEMPERATURE OVERLOAD CUT-OUT SMOKE FAN ENCODER 18. HOPPER OVERLOAD CUT-OUT GEAR MOTOR ENCODER 19.
  • Page 80 Via La Croce n°8 33074 Vigonovo di Fontanafredda (PN) – ITALY Telephone: +39 0434/599599 r.a. Fax: 0434/599598 Internet: www.mcz.it www.mcz.it e-mail: info.red@mcz.it 8901306300 REV 0 12/09/13...

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