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Gas Appliances

Exam revision materials for Plumbing Level 2&3 and ACS Gas Safety test

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Gas Fires

Commissioning

Commissioning

  • Flue-flow test before lightening
    1. Close all doors
    2. Light all open flue appliances in the room
    3. Heat the flue with 5-10 minutes
    4. Hold a smoke match inside the top edge of the opening
    5. Introduce a smoke pellet
    6. If the appliance failed the test repeat allowing 10 minutes for the flue to heat up
    7. If failed again - 'immediately dangerous'
  • tightness test
  • purge
  • light fire and check flame pattern
  • check burner pressure
  • test safety devices
  • check user control
  • Spillage test
    1. The first test with fans off and doors closed
    2. If passed open doors and switch on fans in adjuscent rooms
    3. Light all open flue appliances in the room
    4. Turn the appliance on full and run it for 5 minutes
    5. Hold a smoke match inside the lower edge of draught diverter
    6. If the appliance failed the test repeat allowing 10 minutes for the flue to heat up
    7. If failed again - 'immediately dangerous'

< Go Back2013-04-09

Commissioning

  • Light pilot and check size and position of flame
  • Fit 'U' gauge to burner test point
  • Turn on heater/tap to light main point
  • Check all gas connections/controls are sound
  • Check/adjust burner pressure
  • Compare gas rate with data plate
  • Adjust slow ignition if required
  • Carry out a spillage test (open flues only)
  • Check flame supervision device
  • Check ASD if fitted
  • Determine Temperature rise and flow rate of water using flow-measuring gauge
  • Demonstrate appliance to customer

< Go Back2013-04-09

Commissioning

  • Check electricity is on/batteries are fitted
  • Purge appliance and check gas-control taps work smoothly
  • Check igniters to all hob burners and light each burner
  • Check flames for aeration/height
  • Check burner pressure at test point and check gas rate
  • Light oven and check operation of flame supervision device
  • Check for correct operation of oven thermostat on bypass rate
  • Instruct user and advise on regular servicing
< Go Back2013-04-03
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