Wittus MCZ Technical Training Manual
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Wittus MCZ Technical Training Manual

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MCZ Pellet Stoves
Technical Training

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Summary of Contents for Wittus MCZ

  • Page 1 MCZ Pellet Stoves Technical Training...
  • Page 2 Technical Training Topics Installation  First Lighting  Comfort Air® Remote Control  Black LCD Panel  Active System Operating Parameters  Emergency Panel  Black LCD Panel Navigation  Alarms  Trouble Shooting  Re-Coding the Motherboard  Scheduled Maintenance ...

  • Page 3: Installation Basics

    Installation Basics Venting  3” venting – over 20’ 4” is recommended. We suggest 5’ of vertical pipe at a minimum to insure draft in case of power outage. Surge Protection  Plug the stove power cord into a good quality surge protector.

  • Page 4: First Lighting

     Instructions for setting up the date, time, & programming on the black panel or remote are included in the stove manual. A simplified version in provided in the Quick Start Guide (available at wittus.com). Priming the burn pot ...

  • Page 5: Comfort Air® Remote Control

    Comfort Air® Remote Control ON/OFF button By pressing this button in combination with the MENU button (at right) you can set or adjust the internal clock Button to select operating mode: MANUAL – AUTOMATIC – ECO-STOP Hold for 5 seconds with stove off to swtich from Celsius to Farenheight Button for scrolling up or down to adjust flame power, fan, temperature and to...

  • Page 6: Black Lcd Panel

    Black LCD Panel The LCD control panel on the  Star and Ego is the control and data center for the stove. The panel will display the current  status of the stove. i.e. Start-up or Auto The Thermostat remote control is ...

  • Page 7: Emergency Panel

    EMERGENCY PANEL The Emergency Panel on the Comfort Air stoves and the Black Panel on the Ego & Star are a window into the detailed functioning of the stoves. We will start by going over the Emergency Panel as the Black Panel is similar but easier.
  • Page 8 EMERGENCY PANEL LEDS Flashing green = Stove starting up  Steady green = Stove on  Flashing red = Stove shutting down or in alarm condition.  Steady red = Stove off  ON-REMOTE-OFF SELECTOR ON = The stove turns on WITHOUT the remote control. ...
  • Page 9 EMERGENCY PANEL DETAILS TEST With the button it is very easy to read the total operating hours of the stove, air flow, and flue temperature. PRESS ONCE With the switch at MIN to view the number of hours the  stove has been in operation: 000-145=145 operating hours 001-145=1145 hours...

  • Page 10: Operating Parameters

    Operating Parameters The ACTIVE SYSTEM stoves are controlled by operating parameters that determine the product's response in the various conditions. ACTIVE SYSTEM PARAMETERS CAN NOT BE CHANGED but knowing what they are can be very  useful to assess whether or not the stove is operating correctly. The most important information to pay attention to, is the air flow - the liters/minute read by the air flow ...
  • Page 11 EGO - STAR AIR version Example of Perameters Chart in the Service Manual Release Software 0503 0504 Values Values Unit Revolution and flow parameters Air flow in load wood phase 1900 1900 Minimum value of revolutions of the smoke fan in load wood phase Air flow in fire on phase 1500 1500...
  • Page 12 EMERGENCY PANEL ADJUSTMENTS TEST Using the button you can modify certain functions of the stove: To Adjust Feed – HOLD THE TEST BUTTON DOWN FOR SECONDS The display will show 0: by pressing the right button with a sharp instrument You can increase or decrease the quantity of pellets using the following scale: -3 = -30% -2 = -20%...
  • Page 13 EMERGENCY PANEL ADJUSTMENTS To de-activate the Air Flow sensor: You may need to de-activate the air sensor in the event that it is broken and you need to keep the stove working. With the air sensor disactivated the combustion blower runs at a fixed rate.
  • Page 14 EMERGENCY PANEL TOOLS Re-syncing a Remote Control When the stove is off turn switch to  Remote position Press the button  Three lines appear - - -  Press the Off/On Button on the remote  Three beeps from the Emergency panel ...
  • Page 15 EMERGENCY PANEL TOOLS Replacing the Motherboard and Programming the Software Turn the stove off and disconnect the power  Remove and replace the motherboard by unscrewing the 3  screws on the mounting panel on the back of the stove Re-connect power and switch the stove on ...

  • Page 16: Navigating The Black Lcd Panel

    Navigating the Black LCD Panel The LCD control panel on the Star  and Ego has all the functions for the remote and the emergency panel combined. The panel will display the current  Off, Start-up, status of the stove i.e. Illustration of the display in stand-by Manual, Auto, Auto Eco Using the 4 buttons it is very simple to...

  • Page 17: Black Panel Menu Items

    Black Panel Menu Items The Menus & Sub-Menus DATE and TIME SETTINGS   To set the time. To Set preferences or functions of the stove such as: TIMER  The LANGUAGE of the display • To set the set back programs already saved in the Set the ECO-STOP •...

  • Page 18: Entering The Technical Menu

    Entering the Technical Menu The Technical Menu is a password protected area where the technician can De-activating the Air Flow Sensor adjust the following: Press the button in TOP RIGHT to access the  Re-set hours of operation  (after cleaning) menu De-activate the air flow sensor ...
  • Page 19 Technical Menu Example 2 Replacing the Motherboard As before Scroll through the various menus, to  TECHNICAL MENU Press SET, and insert the password C 93 with the  bottom keys, confirming with OK first the letter and then the number Confirm by pressing SET ...
  • Page 20 ALARMS – Emergency Panel Along with enabling operation of the stove in an emergency The emergency panel is the window for system diagnosis. If the Motherboard detects a problem it will display an Alarm code on the panel. By consulting the table in the service manual we can identify the type of problem the stove is reporting.
  • Page 21 ALARMS – Active System A01 Failure to ignite A02 Fire extinguishes abnormally A03 Excessive temp. @ pellet hopper sensor (> 110 c) A04 Excessive flue temperature sensor reading A05 Blocked or obstructed Chimney A06 Draught Problems (insufficient LPM of air) could signal a blocked grate A07 The door is ajar A08 Combustion Blower broken (registers 0 rpm) A09 Flue Temperature sensor is broken...

  • Page 22: Trouble Shooting Alarms

    Trouble Shooting Alarms For a better understanding of the alarms it helps to group them in categories Alarms 1 2 4 and 9 all involve the flue sensor: A 01 Flue sensor needs to reach 50°C within 15 minutes  A 02 The stove has gone past start up and the flue sensor cooled to 45 °C - Most ...
  • Page 23 Trouble Shooting Alarms - Continued Alarms 5 , 6 and 14 involve the Air Flow Sensor A 05 Comb blower 2,700 RPM with < 90 L/min air flow for 20 seconds – blocked flue  A 06 Comb blower 2,500 RPM with < 160 L/min air flow for 20 minutes. This indicates a dirty ...

  • Page 24: Re-Coding A Motherboard

    Re-Coding a Motherboard If you need to use a motherboard that has already been programmed with a different software than the stove you are putting it into you will need to Clear and Reset the hardware of the motherboard. Unplug and then reconnect the stove to the power supply through the ON/OFF main switch.

  • Page 25: Trouble Shooting Advice

    Trouble Shooting Advice Try the simplest things first.  Does the user understand the controls?  Are the batteries fresh?  When was the stove last cleaned or serviced  Check environmental issues such as negative air pressure or lack of make up ...

  • Page 26: Scheduled Maintenance

    SCHEDULED MAINTENANCE This is the Maintenance schedule in the owners manual. Every 60-90 Every end of Every 2 Components to check Daily Every 2-3 days Every 30 days days season seasons  Clean the grate Clean the ash collection compartment with a ...

  • Page 27: Cleaning Tips

    ATTENTION: Once the combustion blower is removed, it is compulsory to replace all the seals and redo any silicon. A MCZ gasket replacement kit is available from Wittus. The chamber must be perfectly airtight. Be careful not to put too much force on the fan blades . If they twist or the blade becomes...

  • Page 28: End Of The Season

    End of the Season At the end of the heating season turn the stove  off with the switch at the rear and remove the power cord from the wall Remove the batteries from the remote to avoid  damaging the remote with corroded batteries. Fresh batteries should be used each fall.

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