The heating and cooling arrangement for offices are done by boilers or airconditioning .Air
washers are also used in some geographies .These utilities consume energy ,hence it is
important to save energy by utilising devices and switching off these machines when not in use.
Others methods are listed below
washers are also used in some geographies .These utilities consume energy ,hence it is
important to save energy by utilising devices and switching off these machines when not in use.
Others methods are listed below
- Routine maintenance of an HVAC system should be performed at least annually. Inspect
motors, belts and steam traps, and rebuild or replace them as necessary. Filters should be
replaced, dampers adjusted to ensure a tight seal, and linkages, boiler heat transfer
surfaces and coils should be cleaned. Other low-cost improvements to improve your HVAC
unit's efficiency include:
- Install tight-sealing, insulated dampers. The outside air and the exhaust dampers should
have edge and jamb seals. The damper between the return air duct and the outside air
duct should be tightly sealed.
- Insulate duct system. Supply ductwork and ductwork that is exposed to outside air —
including the mixed air duct, exhaust duct and outside air duct — should be insulated.
- Balance air-handling systems. Air-handling systems should be balanced so that each zone
receives the design air flow. The returns registers should also pull as much as air back as is
supplied.
- Control ventilation to match occupancy of facility/building. Heating and cooling of outside air
prior to its delivery to occupied spaces should be controlled to match the occupied hours of
the building. - Control heating to match occupancy of facility/building. During unoccupied periods, the
heating temperature can be reduced by 10°F to 15°F.
- Adopt an "optimal start" strategy. Many systems are controlled by a time clock or an energy
management system to begin regular operation. An optimal start strategy utilizes a
database and outside temperature measurements to determine when the system should
resume heating or cooling. - Control the air-handling unit to match occupancy of facility/building. Program the air-
handling unit to cycle off during unoccupied periods.
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ENERGY SAVINGS IN HVAC