Document Outline

• Issue 22.01.10 (Main revision)
• This manual
• Abbreviations and names used
• Icons
• Service and technical support
• Environment
• Intended use
• Atmos Warranty – Short version
• Exceptions
• SAFETY REGULATIONS
  • General
  • CH system
  • Gas system
  • Electrical system
  • Domestic water system
  • Flue discharge and air supply
• DESCRIPTION OF THE APPLIANCE
  • General
  • Operation
  • Operating conditions
    • - Off
      • Waiting position
      • 0 Pump overrun
      • 1 Required temperature reached
      • 2 Self-test
      • 3 Ventilate (Fan)
      • 4 Ignite
      • 5 CH operation
      • 6 Domestic hot water operation
      • 7 Keep Hot Facility
  • PC interface
  • Test programmes
    • Test programmes
    • Frost protection
• MAIN COMPONENTS
  • Accessories
• INSTALLATION
  • Overall dimensions
  • Unpacking the appliance
  • Additional dimensions
  • Boiler location
    • Installation in a kitchen cupboard
    • Installation in an airing cupboard
    • Remove front panel
  • Mounting and General Information
    • Fitting the mounting strip
    • Fitting the mounting strip and the mounting bracket
    • Fitting the rear mounting frame
    • Installation connections
  • Mount the appliance
  • Fit the pipework cover (optional item)
  • Condensate disposal
• CONNECTIONS
  • Connect the CH system
    • Expansion vessel
    • Thermostatic radiator valves
    • System by-pass
    • A by-pass is not required for safe operation of the boiler.
  • Hot water system
    • Appliance with pre-heating by solar system
  • Connecting the gas supply
  • Electrical connection
    • 24V dc Electrical connections
    • Volt free Room thermostat on/off
    • Outside temperature sensor (Weather compensation option)
    • OpenTherm modulating thermostat
    • 230Vac Electrical connections
  • General Flue Requirements
    • Flue terminal clearances
    • Flue system
    • Note regarding internal air-flue systems.
  • Flue discharge and air supply
    • 60/100mm Concentric Standard through the wall Horizontal Ter
    • 60/100mm Concentric extended flue system
    • Vertical Concentric connection
    • 80/125mm Concentric flue system
    • Twin-pipe connection
    • 80mm twin pipe flue system
    • Plastic twin pipe flue systems
  • Roof outlet prefabricated chimney
    • Maximum pipe length
      • Mounting of prefabricated chimney
  • Atmos MS System
    • Maximum pipe length
      • Mounting of air supply - horizontal
      • Mounting flue terminal - vertical
  • Atmos Communal Flue System (CFS)
    • Atmos CFSEO – FA System
      • Maximum pipe length
      • Common flue discharge
    • Atmos CFS System
      • Maximum pipe length
• COMMISSIONING
  • Fill and de-aerate the appliance and the system
    • CH system
    • Hot water supply
    • Gas supply
  • Commissioning of the appliance
    • Remarks
  • System Shutdown
    • Frost protection
      • Note!
• SETTING AND ADJUSTMENT
  • Directly via operating panel
    • Appliance on/off
      • Adjustment of CH supply temperature and Domestic hot water t
      • Domestic hot water Keep hot function
      • Reset button
  • Settings through the service code
  • Parameters
  • Setting maximum CH power
  • Setting pump position
  • Weather-dependent control
  • Conversion to other gas type
    • Conversion of the gas setting ring
  • Gas-air control
  • Setting gas-air control
    • Setting by measuring the CO2 content of the flue gases
      • Setting the gas valve by pressure measurement
  • Carbon monoxide : carbon dioxide ratio
• FAULTS
  • Burner does not ignite
  • Burner ignites with much noise
  • Burner resonates
  • No heating (CH)
  • Reduced output
  • CH does not reach the correct temperature
  • No hot water (HW)
  • Hot water does not reach the correct temperature
• SERVICING THE BOILER AND COMPONENT REPLACEMENT
  • SERVICING THE BOILER
    • Preparation
    • Checking the heat exchanger and spark ignition probe
    • Note for CFS systems with Non Return Valve (flue gas)
    • Checking the condensate discharge
    • Inspect air supply/flue gas discharge system
    • Checking the gas-air control
    • Check the CO/CO2 ratio
    • Completion of inspection and service
  • COMPONENT REPLACEMENT
    • Preparation
    • Gas valve/ ignition block
    • Fan
    • Controller
    • Burner/ spark ignition probe
    • Flow/ return temperature sensors
    • Flow switch
    • Pressure gauge sensor
    • Hot water temperature sensor
    • Pump head
    • Expansion vessel
• TECHNICAL SPECIFICATIONS
  • Electrical diagram
• CE DECLARATION