Let's talk nearly 30-40% of your electricity bill. That's how much it costs the average homeowner or billboard building owner to offer proper heating, ventilating, and air-conditioning (HVAC). A good HVAC system is the key to maintaining a comfortable, healthy and interior environment. Through the years, I have been asked by many owners for a strategy to edit their cost of dynamism and HVAC. They don't desire to sacrifice the interior environmental conditions, but they complete desire a point-by-point plot to follow. The engaging issue that often happens is that dynamism bills are lowered substantially and the HVAC system action is improved. This is a standard action of any mechanical engineer specializing in dynamism and HVAC.
The information upon this page will urge on homeowners, building owners and building operators make informed decisions nearly existing HVAC systems or difficult upgrades.
Operation and Maintenance
The first step to achieve dynamism and HVAC system optimization is load reduction. This step normally consists of a long range plot which itemizes the comings and goings to be taken based upon best compensation upon investment. Reducing your building load allows the existing HVAC system to action more efficiently. If a new system or systems are subconscious considered, it will be more cost keen to design for the shortened load as opposed to the existing load. A few common load point strategies include:
Tighten the building shell and increase new insulation. add-on insulation in existing buildings may not be achievable in some instances, appropriately more consideration should be aimed at the exterior shell, especially windows and doors.
Installing energy-efficient windows. This is a huge item upon some buildings that still have single pane windows. The installation of double pane windows considering a thermal fracture is a good compensation upon investment. make determined they are dynamism STAR ascribed windows. Tinting or Low-E coatings will even be better.
Upgrading lighting systems. The average billboard building has a lighting density of 2-3 watts per square foot which maintains proper lighting levels. This is a significant portion of the HVAC load and on any efforts in this admin will subjugate the cooling requirement for the building. Accent lighting (sometimes called architectural lighting) are not always dynamism efficient and should not be considered if you desire to edit dynamism and HVAC costs. Energy-efficient lighting systems emit less heat into conditioned atmosphere than older warm technology. If you have a compensation ventilate plenum then again of compensation ventilate ductwork, decide buoyant troffers appropriately that some of the heat from the lights is returned to the HVAC system then again of going into the occupied area.
Selecting efficient equipment and electronic devices that have a faculty miser option will edit the sensible heat gain in the space. Items to decide count up copy machines, kitchen equipment, computers and refrigerators.
Control ventilation by having your outside ventilate balanced. Most building owners have drawings of the native HVAC system installation. Have the drawings reviewed by a mechanical engineer to state your outside ventilate flow rates conform to the latest code requirements. If no drawings are available, your mechanical engineer should still be able to make recommendations for improvement.
Addressing these items is your first step to reducing dynamism and HVAC costs.
The second step to achieve dynamism and HVAC system optimization is knowing your system. Your HVAC system is essential to your interior environment, but it also represents a large component of your further expenses. while it is greater than the scope of this article to discuss every system, a few recommendations can be addressed. every HVAC system component has increased in efficiency greater than the years. If your system is more than 13 years old, it's become old to start planning for an modernize to new equipment. skillfully maintained residential systems have a dynamism expectancy of nearly 15 years or appropriately but seem to fail at the worse times. Have a replacement plot ready for the hours of daylight your equipment fails.
Commercial systems vary, but if your building is using packaged equipment or split systems, the thesame lifetime can be expected. For larger billboard systems and industrial applications, the HVAC system may be more puzzling and require an individual analysis by a mechanical engineer. As I said, HVAC systems correct and no one-size-fits-all analysis works for larger systems. What every these systems have in common is they are normally fueled by electricity. Electricity cost money, appropriately any efforts in the admin of increased efficiency is a plus.
HVAC System Tips:
Find a ascribed consultant you trust. If you are a home owner or small billboard building owner, locate a good HVAC company or mechanic to consider and maintain your system. If you are a large billboard building owner, locate a billboard HVAC company for usual money and a good mechanical engineer for specific guidance. I complete not recommend using a mechanical engineer employed by the HVAC Company; locate a third party engineer for modern information.
Verify your HVAC system load. home owners should use ACCA's calendar J count method and every others should have a load conducted by a mechanical engineer. billboard buildings have more requirements connected to code conformance, minimum ventilation rates, etc and are individual to each building.
Load reduction-Read the information above.
Select equipment sized for your load. NEVER OVERSIZE! More-is-better does not apply for HVAC systems. It will cost more to purchase the equipment as skillfully as action it. acquire the load and the equipment selection right the first time.
Purchase tall efficiency or dynamism Star equipment. Many of the new systems count up changeable readiness drives for fans and compressors. greater than the years of ownership this will be paid urge on many become old over. Compare standard efficiency equipment to tall efficiency equipment in terms of initial cost and dynamism cycle costs. Any good HVAC company or mechanical engineer can get your hands on this information.
Consider some form of dynamism recovery for any ventilate exhausted from the building and use it to condition the incoming buoyant air. This is ventilate you have paid to condition, appropriately extracting some of the dynamism past exhausting it should be a priority.
For large billboard buildings, decide conditioning the outside ventilate considering a dedicated outside ventilate unit. This will eliminate any problems connected to humidity rule in most instances. It will also bump occupant comfort and allow for new downsizing of equipment.
Commercial buildings should decide economizers upon their equipment. Most current codes require economizers upon equipment greater than 15 tons in size. Often straightforward at a low incremental cost, these units attraction in buoyant ventilate from the outside considering the temperature (sometimes humidity) outside is subjugate than the temperature inside.
Home owners and small billboard building owners should install programmable thermostats. billboard building owners should install a refer Digital rule (DDC) system. The investment in either of these will pay urge on more than the cost in a small amount of time. right of entry more below.
The third step to achieve dynamism and HVAC system optimization is controlling your system.
Programmable Thermostats-The age of digital controls has made saving dynamism easy. One of the best investments for the homeowner or small billboard building owner is a programmable thermostat. These are easy to use and incorporate strategies based upon become old scheduling. Most manufacturers offer 7 hours of daylight programs and setback/setup programs which will turn the HVAC system upon and off to compliment your schedule and desired indoor temperature. This is a good pretension to ensure HVAC systems are used unaccompanied considering necessary.
DDC Systems-For the large billboard building, I decide this as a must have system. Installation costs have steadily decreased and the action reliability has steadily increased. They can be integrated into any system and expanded as required. Some of the more well-liked features of these systems are optimized start/stop of the HVAC system, fused zone control, fused temperature sensor locations and ventilation control. The best portion of these systems is their exploit to be scaled stirring to the largest of billboard applications. This means you can install a easy system and increase more controls difficult to incorporate your total HVAC system. Again, the payback is immediate and skillfully worth the investment.
Operation and Maintenance
The fourth and last step to achieve dynamism and HVAC system optimization is operation and maintenance. The most efficient HVAC systems are skillfully maintained. Ensure reliability, efficiency and a long dynamism for your HVAC system by considering these tips.
Find a ascribed consultant you trust. If you are a home owner or small billboard building owner, locate a good HVAC company or mechanic to consider and maintain your system. If you are a large billboard building owner, locate a billboard HVAC company for usual maintenance. make determined you photo album and document every servicing considering dates, become old and names of the servicing person.
Home owners should always acquire a seasonal tune up. The operation of your system will correct considering the seasons of the year.
Replace your ventilate filters regularly. Don't use all less next a MERV 5 filter to assure dust and fibers are removed. clean filters will keep enthusiast energy.
Coil Cleaning-This is always a huge item overlooked by residential and billboard building owners. Condenser coils total dirt and debris upon their surfaces because they are outside. This makes the compressor action harder and results in a difficult refrigerant temperature in your refrigeration system. Evaporator and heating coils total dust and fibers that atmosphere inside your home or building. clean them at least considering a year