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  2. Preventive maintenance checks and services - Wikipedia

    en.wikipedia.org/wiki/Preventive_Maintenance...

    A PMCS check is required before, during, and after a piece of equipment or vehicle is used. Checks are also done at weekly, monthly, semi-annual, annual, or bi-annual intervals, depending on the specific part. [1] Doing a PMCS check every time equipment is used may reduce the number of failures.

  3. Preventive Maintenance Checklist For Properties: Everything ...

    www.aol.com/preventive-maintenance-checklist...

    Chimney Inspection – Conduct annual chimney inspections and cleanings for properties with fireplaces to prevent fire hazards. welcomia / istockphoto Preventive Maintenance Saves Time and Money

  4. HVAC control system - Wikipedia

    en.wikipedia.org/wiki/HVAC_control_system

    Maintenance on an HVAC system includes changing out the air filter, inspecting the areas where air intake takes place, and check for leaks. [ citation needed ] Doing these three steps are super essential and is the key to keeping an HVAC system running for a long time.

  5. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    Such a system contains a boiler, furnace, or heat pump to heat water, steam, or air in a central location such as a furnace room in a home, or a mechanical room in a large building. The heat can be transferred by convection, conduction, or radiation. Space heaters are used to heat single rooms and only consist of a single unit.

  6. Annual fuel utilization efficiency - Wikipedia

    en.wikipedia.org/wiki/Annual_fuel_utilization...

    The annual fuel utilization efficiency (AFUE; pronounced 'A'-'Few' or 'A'-'F'-'U'-'E') is a thermal efficiency measure of space-heating furnaces and boilers.The AFUE differs from the true 'thermal efficiency' in that it is not a steady-state, peak measure of conversion efficiency, but instead attempts to represent the actual, season-long, average efficiency of that piece of equipment ...

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