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HVAC operation and Maintenance

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HVAC Operation and Maintenance for the building and its management.

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HVAC operation and Maintenance

  1. 1. HVAC OPERATION AND MAINTENANCE (HVAC O&M)
  2. 2. HVAC  It is abbreviated as Heating, Ventilation, and Air Conditioning System.  Being interconnected and grouped together, this mechanical system provides thermal comfort and air quality in an indoor space.  The System includes Boilers, Heat Pumps, Chillers and Air Conditioners and Packaged System.
  3. 3. HVAC O&M  HVAC operations and maintenance ("O&M").  These are the practices, which keeps the mechanical systems to work at a high performance during the life time of the building.  A perfect designer can make the process easy the maintain the comfortable thermal system.  HVAC O&M is measured in terms of System performance.
  4. 4. Performance Measure  The HVAC system must offer thermal comfort continuously, at the energy use specified in the design for the building.  Continuous commissioning is the best operation that improves the energy performance by 20%.  It also improves the comfort at the equivalent time.  But, the main thing is design of the HVAC system. The perfect design will make the system to execute properly.  As the technology improves, performance can
  5. 5. Operations Manuals  High quality operations are ensured by good design process and regular maintenance.  The designer first of all have to create a manual for the operating staffs which specifies the intent clear design, maintenance list, replacement palms and all other necessary things.  The manual should clearly explain the parameters that are conducted during commissioning.  Without manual, the work is never effective as it may cause many troubleshoot to the
  6. 6. Maintenance Schedules  Maintenance plays the important role in O&M manual.  Schedules for duct filer and all other component cleaning, replacing must be specified and followed to have ensure better energy use and comfort as well.  Performance of the system have to be measured monthly or quarterly, which helps the operators to collect information for the further use.  Some buildings are built up with the automation systems, which records status of
  7. 7. Flexibility and Occupant Behavior  It is important to cope with the requirements of the users by ensuring the safety and efficiency.  Arrival heater and desk fans to the customer’s place is an indication of the failure of the HVAC system, which fails to satisfy the customer’s need.  This denotes the faults or changes in the original HVAC design and finally results in the product change for the occupant’s personal use.
  8. 8. Filter Cleaning & Replacement  Filters plays the important role in the Air conditioning system.  They must be cleaned periodically to keep the energy and indoor air quality in a high range.  Some filters can be cleaned in simple ways like spraying water or vacuuming.  Rest of them, needs replacement. Like filters in the ducts, filters of the furnace, heating pumps and other parts must be checked.  Filters requires regular cleaning in the HVAC system, for a long time efficient performance.
  9. 9. Cleaning Components  Like filters, other components in the system needs regular cleaning as well.  Ducts must be inspected regularly for the accumulation of the mold, dust and other contaminants.  For best indoor air quality, they must cleaned and inspected for the leakage, as it may cause energy loss.  Coils with dust particles restricts the air flow which in turn reduces the convective cooling of the system.  Drains of the dehumidifying parts must be checked, as it may cause the condensed water to pool up and leaks in the building. mold and mildew.
  10. 10. Operation of Control Systems  Programmable Thermostat schedule the heating and the cooling of the HVAC System.  Those Schedules must match the occupancy and the activity of the system and must be changed in accordance to the age of the building.  Temperature, Occupancy, Humidity calculating sensors should be checked regularly for the proper operation.  Improper working Sensors may be inconvenience to the users.  Improperly tuned control system are manually disable by the HVAC system, as the energy
  11. 11. Diagrams  Diagram for Duct routing and control should be created and kept for the assurance of understanding.  It also helps in resolving troubleshoot problems and improving the system performance by regular upgrades.  HVAC units, sensors, ducts, air handling components, controllers, and their interconnection are specified in the system.  For better readability, sensors and control diagrams are separated often.
  12. 12. Thank you…!!  Thanks for reading the presentation. To avail best Air conditioning service, please visit AC Repair Local, Houston.  http://www.ac-repair-local.com/

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