Whether you're upgrading, replacing or installing your first HVAC system you will want to know as much as possible about the equipment and what you can expect from it. The following answers to frequently asked questions about commercial HVAC systems can help you understand some important basics about your investment in heating and cooling.
FREQUENTLY ASKED QUESTIONS
Cooling and heating system a commercial institution can be costly. A high efficiency commercial Heating and air conditioning system may make a significant difference in your monthly expenses. When compared to normal models, higher efficiency Heating and air conditioning systems may slash cooling and heating expenses by a significant percentage. In a lot of case, system owners have reported that the first costs of a high efficiency Heating and air conditioning system could be retrieved through these monthly savings only by about the halfway stage of the machine's anticipated useful lifespan.
A commercial heating and air conditioning system is going to require the investment of a few thousand dollars. You want the gear to last to protect your investment. There are many factors that will influence the longevity of the system. The most important being routine preventative maintenance and timely repairs. On average, you may expect this kind of equipment to last 10 to 15 years. A commercial furnace, air conditioner, heat pump and boiler are built to last for many more.
In accord with the U.S. Department of Energy, just just just as much as 50 percent of a commercial building's energy is used to operate its own Heating and air conditioning system*. Higher-efficiency systems and advanced technology from Lennox can help businesses reduce their operational spending by producing comfortable buildings which use less energy. Compare lifecycle costs: Controlling operational costs is a whole lot more than choosing the lowest priced equipment. Installing a system with a lower lifecycle cost may help reduce energy and maintenance costs for the life span of the system. Look for systems with greater energy-efficiency ratings to reduce monthly energy bills. Adding efficacy options like economizers can improve efficiency much more. Another way to lessen costs is to select systems which are simple to set up -- with attributes like hinged access panels -- to conserve labour hours. Reliability features such as high- and - low-pressure switches which protect compressors from unnecessary tear and wear minimize upkeep expenses. Investigate new technologies Demand Control Ventilation: Most Heating and air conditioning systems offer ventilation based on assumed occupancy, as compared to just how many people are actually in the area at any given time. Installing a Demand Control Ventilation (DCV) system with a CO2 detector provides an exact reading of an area's occupancy level. The system then controls the quantity of clean air introduced based on output from the CO2 sensor. The consequence is improved energy-efficiency and indoor air quality. Economizers: When a building soaks up heat in the equipment, occupants and lighting, the heat might continue to warm the building even when the outside temperature is cool and comfy. That is when it is more economical to close off the compressors and cool using outdoor air. Integral economizers measure outdoor air's temperature and dampness, determining if it is cool and dry enough to keep occupants comfortable. The economizer will then use the outside air for heating as opposed to operating the compressors. Building Automation Systems: Commercial control systems are available which use one interface to control a vast range of equipment and functions. These include complex technology such as remote monitoring, advanced diagnostics, system installation and alarm reset. Gear made by various companies can communicate with one another via BACnet and LonTalk protocols. BACnet or LonTalk capacity can be installed on rooftop units to let them communicate with the automation system you use. Most commercial rooftop Heating and air conditioning systems have approximately a 15-year life period. Replacing a unit a few years before on a prearranged schedule--before wear and age take their toll--can dramatically reduce energy usage and help prevent lost earnings. Installing newer, more energy-efficient equipment can reduce energy expenses. While economies vary depending on system configurations, upkeep, local fuel prices along with other factors, today's ENERGY STAR qualified Heating and air conditioning systems provide considerably higher SEER efficiency ratings. In accord with the U.S. EPA (EPA), the owner of a commercial building can generate $2 to $3 of incremental asset value for every $1 invested in energy efficiency improvements. Many utility companies also provide rebates for greater efficiency equipment.
Air filters provide two major works in a commercial environment. First, they help keep your indoor air clean by trapping small particles like dust, allergens and other material. Second, they sustain the air flow your heating and air conditioning system needs to function properly. Dirty, clogged filters will block this air flow and prevent your Heating and air conditioning equipment from working properly. At the worst cases, dirty filters may even contribute to harm to the system. Generally, air filters must be checked every month and changed when they become dirty. In case your commercial actions produce more particulates and air pollutants than normal, it'll likely be required to check and change the filters more frequently, perhaps.
Preventative maintenance is another element of Heating and air conditioning system maintenance which will contribute substantially to equipment function. Regular maintenance ensures your commercial Heating and air conditioning system will work at its best for so long as possible. It hastens the efficiency of your Heating and air conditioning equipment and preserves those yearly savings you expect from high efficiency system. It will help prevent breakdowns and system malfunctions which could lead to expensive repairs or complete system replacements. Telephone your trusted local Heating and air conditioning service provider for a preventative maintenance appointment at least once every year for every kind of system. Generally, it is best to have heating systems preserved from the autumn and cooling systems in the spring. Since commercial Heating and air conditioning systems work more challenging than residential systems, it could be required to have maintenance done more often. Consult with your Heating and air conditioning pro for advice.
The ductwork in your commercial HVAC system carries heated and cooled air to the inside of your building. Since all the conditioned air passes through the ductwork, this network of pipes should also be inspected and maintained regularly. Air leaks in the ductwork can account for a substantial loss of energy and money. To prevent these leaks, duct sections must be kept in good repair and should be fitted tightly together. Connections should be sealed with mastic, a specialized sealant for ducts, or with metal tape.
A zoning system is designed for the many ways you use your construction. Maybe you're caught up in co-worker "thermostat wars" or maybe you have unoccupied areas that don't require conditioning. Zoning allows you to split your company into different areas, providing you the comfort and control you've always wanted. The primary advantages of commercial zoning would be: Comfort: Zoning meets the specific temperature and air flow requirements of one place, without impacting other areas. Efficiency: A properly designed zoning system can save you hundreds of dollars in energy costs every year. Control: Zoning divides a distance to different areas and comfort to various degrees, providing you more selections and more control than ever before in the past. Quiet Performance: When incorporated with variable speed or two-stage Heating and air conditioning systems, zoning allows your heating and cooling equipment to provide peak performance and efficiency without continually operating at peak capacity. Lower speeds mean lower sound levels.
SEER (Seasonal Energy Efficiency Ratio) is a system for rating the efficiency of cooling equipment. The higher the SEER rating, the less your unit is going to cost to operate. HSPF (Heating Seasonal Performance Factor) is a measurement similar to SEER, however it measures the efficiency of the heating portion of a heat pump. Energy Efficiency Ratio (EER) measures the cooling output of a unit divided by its total energy consumption, measured during continuous operation at a given operating condition (95 levels or complete load). Integrated Energy Efficiency Ratio (IEER) measures express cooling part-load EER efficiency for industrial grade air conditioning and heat pump equipment on the basis of weighted operation at various load capacities.
LEED is a point-based system wherein building projects earn LEED points for satisfying specific green building criteria. Within every one of the seven LEED credit groups, projects must meet particular prerequisites and make points. The 5 categories Incorporate Sustainable Sites (SS), Water Efficiency (WE), Energy and Atmosphere (EA), Materials and Resources (MR) and Indoor Environmental Quality (IEQ). An additional class, Innovation in Design (ID), addresses renewable building experience as well as design measures not covered under the 5 environmental categories. The number of points the job earns determines the level of LEED Certification the job receives. LEED accreditation is available in four progressive levels in accordance with the following scale: There are 100 base points; 6 possible Innovation in Design and 4 Regional Priority factors a) Certified 40-49 b) Silver 50-59 c) Gold 60-79 d) Platinum 80+
USGBC doesn't certify, endorse or promote goods, companies or services, nor do they track, list or report data related to their environmental qualities. LEED is an accreditation system that deals with the environmental performance of buildings based on general characteristics of the undertaking. Credits are not given based on the usage of goods but rather upon meeting the performance standards set forth in our rating systems. It's up to project teams to determine which products are most appropriate for credit achievement and program prerequisites.
The EPA (EPA), during the Clean Air Act, is controlling the production and use of refrigerants. In response, Lennox has developed cooling products that use the new, chlorine-free R-410A refrigerant, instead of the typical R-22 refrigerant (freon) now being used. Because R-410A contains no chlorine, it is ozone- and climate-friendly. Also, R-410A allows higher efficiencies than R-22, therefore it not only makes sense environmentallyfriendly, in addition, it makes sense from an economic standpoint. The introduction of air conditioners with the most recent in refrigerant technology reflects Lennox' proactive approach to protecting the environment.
An air conditioner seems as if it cools the air, however it really makes the space less warm by removing heat from the indoor air and transferring that heat to the outdoor air. Heat is extracted by passing indoor air across a refrigerant coil in the indoor unit. Refrigerant lines then carry the heat to the outdoor unit, where it's released in the outside air. The cooling cycle takes on till the indoor temperature reaches the thermostat setting.
A heat pump is an all-in-one air conditioning and heating system which works year-round to keep you comfortable. During warmer months, a heat pump works as a normal air conditioner. It extracts heat from inside and transports it to the outdoor air. In colder weather, however, the procedure reverses--the unit collects heat from the outdoor air and transports it inside. Even when the air outside feels extremely chilly, the air still contains some warmth. The heat pump pulls the warmth from this cold outdoor air and sends it inside to warm the space. When there's not enough heat in the outside air to meet the demand of the thermostat setting, an electrical heater supplement that the outdoor air to warm the space. Efficient, this procedure generates two to 3 times more heat than the energy it uses. In addition, a heat pump may be an efficient add-on option to use in conjunction with a present gas furnace. With this dual-fuel option, the two systems share the heating load, but never function at the same time. Each system operates when it's most cost efficient. The heat pump will be the principal heating and cooling system. Nevertheless, when the temperature drops beneath the heat pump's capacity to operate as economically as the gas furnace, the gas furnace will take over till the temperature rises enough to the heat pump to operate more efficiently.
"Variable speed" pertains to the fan motor inside the air handler -- the indoor part of an air conditioner that moves cooled or heated air through the ductwork. An air handler is a toaster or a blower coil. Unlike conventional single-speed motors, a variable speed motor operates at a broad array of rates to precisely control the flow of heated and cooled air through the space. Better air flow control has many benefits: Electrical efficiency: Variable speed motors may in fact save you money on your energy bills, as they consume less electricity than standard motors. Cooling efficiency: Variable speed technology also means you'll acquire air conditioning efficacy or SEER. Zoning: Variable speed motors are fantastic for zoning, which permits you to customize your relaxation in various areas and control your energy bills. Air Quality: A variable speed motor can also help clean the air. When the lover is in constant operation (indicated by the "Fan" setting on your thermostat), the motor will continue to slowly circulate air, allowing filters to capture more contaminants.
Two-stage cooling ensures the air conditioner or heat pump has a compressor with two degrees of operation: high for warm summer days and low for milder days. Considering that the low setting is adequate to meet household-cooling demands 80 percent of the time, a two-stage unit works for longer periods and produces more even temperatures. Longer cooling cycles also translate to quieter, much more effective operation and enhanced moisture control. Compared to a single-stage unit, a two-stage air conditioner or heat pump can remove double the total amount of humidity from the air. This is very important because when humidity levels are high, there's a greater potential for mold along with other pollutant issues.