property managers have a lot of responsibility, including the management of your tenants’ comfort.
If your tenant is running servers in their workspace, your responsibility extends to ensuring that not only are they comfortable, but also that their IT infrastructure stays cool enough to continue running.
The importance of server room cooling cannot be understated.
HVAC for your tenants’ server room isn’t just nice to have, it’s essential. If servers overheat and fail, it could cost them thousands of dollars in damage.
What is considered commercial HVAC?
Commercial air conditioning systems generally should be serviced quarterly.
This time frame is sufficient for most regular office environments.
However, some manufacturing and other industrial applications may require additional servicing.
Residential HVAC units are much smaller compared to commercial systems.
Commercial HVAC systems are larger because they are generally employed to cool much larger spaces.
Spaces like warehouses, department stores, and even medium-size businesses benefit from these larger systems. Large buildings that have partitioned off rooms like schools and churches may need a battery of residential units to climate control each room.
The placement of commercial HVAC systems is very different from residential ones.
Generally, the residential system will be in the backyard or alongside the building.
However, with commercial and industrial systems the units are generally placed on top of the building.
This is space-saving as well as keeps most of the noise pollution out of the building.
Commercial HVAC systems require greater drainage systems.
They are cooling larger spaces and this means that additional moisture is cycling through the system.
This means that a whole drainage system needs to be installed alongside the commercial system.
Residential systems have smaller drainage systems, but when using several systems for a church then the drainage systems for each can be placed all around the building.
The maintenance cost of commercial HVAC systems is more than a standalone residential unit for various reasons, such as the complexity of components, the size of the system, and the difference in the mechanism.
For a commercial unit, you need highly experienced and skilled technicians to ensure a perfect installation, efficient maintenance, and energy efficiency.
Different HVAC technicians specialize in different HVAC systems as both the units feature a unique mechanism and function differently.
heating ventilating air conditioning engineers
heating ventilating air conditioning engineers are in charge of air conditioning systems, or a standalone air conditioner that will provide cooling and/or humidity control for all or part of a building.
Air-conditioned buildings often have sealed windows, because open windows would work against the system intended to maintain constant indoor air conditions.
Outside, fresh air is generally drawn into the system by a vent into a mixed air chamber for mixing with the space return air.
Then the mixture air enters an indoor or outdoor heat exchanger section where the air is to be cooled down, then be guided to the space creating positive air pressure.
The percentage of return air made up of fresh air can usually be manipulated by adjusting the opening of this vent. Typical fresh air intake is about 10% of the total supply of air
Air conditioning and refrigeration are provided through the removal of heat.
Heat can be removed through radiation, convection, or conduction.
The heat transfer medium is a refrigeration system, such as water, air, ice, and chemicals are referred to as refrigerants.
A refrigerant is employed either in a heat pump system in which a compressor is used to drive the thermodynamic refrigeration cycle or in a free cooling system that uses pumps to circulate a cool refrigerant (typically water or a glycol mix).
It is imperative that the air conditioning horsepower is sufficient for the area being cooled. Underpowered air conditioning system will lead to power wastage and inefficient usage. Adequate horsepower is required for any air conditioner installed.
Heating, ventilation, and air conditioning (HVAC) is the technology of indoor and vehicular environmental comfort. Its goal is to provide thermal comfort and acceptable indoor air quality.
HVAC system design is a subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics and heat transfer. “Refrigeration” is sometimes added to the field’s abbreviation, as HVAC&R or HVACR or “ventilation” is dropped, as in HACR (as in the designation of HACR-rated circuit breakers).
HVAC is an important part of residential structures such as single family homes, apartment buildings, hotels, and senior living facilities, medium to large industrial and office buildings such as skyscrapers and hospitals, vehicles such as cars, trains, airplanes, ships and submarines, and in marine environments, where safe and healthy building conditions are regulated with respect to temperature and humidity, using fresh air from outdoors.
Ventilating or ventilation (the “V” in HVAC) is the process of exchanging or replacing air in any space to provide high indoor air quality which involves temperature control, oxygen replenishment, and removal of moisture, odors, smoke, heat, dust, airborne bacteria, carbon dioxide, and other gases.
Ventilation removes unpleasant smells and excessive moisture, introduces outside air, keeps interior building air circulating, and prevents stagnation of the interior air.
Ventilation often refers to the intentional delivery of the outside air to the building’s indoor environment.
It is one of the most important factors for maintaining acceptable indoor air quality in buildings. Methods for ventilating a building are divided into mechanical/forced and natural types.
indoor air quality
Indoor air quality (IAQ) is the air quality within and around buildings and structures. …
IAQ can be affected by gases (including carbon monoxide, radon, volatile organic compounds), particulates, microbial contaminants (mold, bacteria), or any mass or energy stressor that can induce adverse health conditions.
Indoor Air Pollution and Health
Indoor Air Quality (IAQ) refers to the air quality within and around buildings and structures, especially as it relates to the health and comfort of building occupants. Understanding and controlling common pollutants indoors can help reduce your risk of indoor health concerns.
Health effects from indoor air pollutants may be experienced soon after exposure or, possibly, years later.
Some health effects may show up shortly after a single exposure or repeated exposure to a pollutant.
These include irritation of the eyes, nose, and throat, headaches, dizziness, and fatigue. Such immediate effects are usually short-term and treatable.
Sometimes the treatment is simply eliminating the person’s exposure to the source of the pollution if it can be identified.
Soon after exposure to some indoor air pollutants, symptoms of some diseases such as asthma may show up, be aggravated, or worsened.
The likelihood of immediate reactions to indoor air pollutants depends on several factors including age and preexisting medical conditions.
In some cases, whether a person reacts to a pollutant depends on individual sensitivity, which varies tremendously from person to person.
Some people can become sensitized to biological or chemical pollutants after repeated or high-level exposures.
Certain immediate effects are similar to those from colds or other viral diseases, so it is often difficult to determine if the symptoms are a result of exposure to indoor air pollution.
For this reason, it is important to pay attention to the time and place symptoms occur.
If the symptoms fade or go away when a person is away from the area, for example, an effort should be made to identify indoor air sources that may be possible causes.
Some effects may be made worse by an inadequate supply of outdoor air coming indoors or from the heating, cooling, or humidity conditions prevalent indoors.
Other health effects may show up either year after exposure has occurred or only after long or repeated periods of exposure.
These effects, which include some respiratory diseases, heart disease, and cancer, can be severely debilitating or fatal. It is prudent to try to improve the indoor air quality in your home even if symptoms are not noticeable.
While pollutants commonly found in indoor air can cause many harmful effects, there is considerable uncertainty about what concentrations or periods of exposure are necessary to produce specific health problems.
People also react very differently to exposure to indoor air pollutants.
Further research is needed to better understand which health effects occur after exposure to the average pollutant concentrations found in homes and which occur from the higher concentrations that occur for short periods of time.
Indoor pollution sources that release gases or particles into the air are the primary cause of indoor air quality problems.
Inadequate ventilation can increase indoor pollutant levels by not bringing in enough outdoor air to dilute emissions from indoor sources and by not carrying indoor air pollutants out of the area.
High temperature and humidity levels can also increase concentrations of some pollutants.
There are many sources of indoor air pollution. These can include:
- Fuel-burning combustion appliances
- Tobacco products
- Building materials and furnishings as diverse as:
- Deteriorated asbestos-containing insulation
- Newly installed flooring, upholstery, or carpet
- Cabinetry or furniture made of certain pressed wood products
- Products for household cleaning and maintenance, personal care, or hobbies
- Central heating and cooling systems and humidification devices
- Excess moisture
- Outdoor sources such as:
- Outdoor air pollution.
The relative importance of any single source depends on how much of a given pollutant it emits and how hazardous those emissions are.
In some cases, factors such as how old the source is and whether it is properly maintained are significant.
For example, an improperly adjusted gas stove can emit significantly more carbon monoxide than one that is properly adjusted.
Some sources, such as building materials, furnishings, and products like air fresheners, can release pollutants more or less continuously.
Other sources, related to activities like smoking, cleaning, redecorating, or doing hobbies release pollutants intermittently.
Unvented or malfunctioning appliances or improperly used products can release higher and sometimes dangerous levels of pollutants indoors.
Pollutant concentrations can remain in the air for long periods after some activities.
- Biological Pollutants
- Carbon Monoxide (CO)
- Formaldehyde/Pressed Wood Products
- Lead (Pb)
- Nitrogen Dioxide (NO2)
- Radon (Rn)
- Indoor Particulate Matter
- Secondhand Smoke/ Environmental Tobacco Smoke
- Stoves and Heaters
- Fireplaces and Chimneys
- Volatile Organic Compounds (VOCs)
If too little outdoor air enters indoors, pollutants can accumulate to levels that can pose health and comfort problems.
Unless buildings are built with special mechanical means of ventilation, those designed and constructed to minimize the amount of outdoor air that can “leak” in and out may have higher indoor pollutant levels.
How Outdoor Air Enters a Building
Outdoor air can enter and leave a building by:
- natural ventilation,
- and mechanical ventilation.
In a process known as infiltration, outdoor air flows into buildings through openings, joints, and cracks in walls, floors, and ceilings, and around windows and doors.
In natural ventilation, air moves through opened windows and doors. Air movement associated with infiltration and natural ventilation is caused by air temperature differences between indoors and outdoors and by the wind.
Finally, there are a number of mechanical ventilation devices, from outdoor-vented fans that intermittently remove air from a single room, such as bathrooms and kitchen, to air handling systems that use fans and ductwork to continuously remove indoor air and distribute filtered and conditioned outdoor air to strategic points throughout the house.
The rate at which outdoor air replaces indoor air is described as the air exchange rate.
When there is little infiltration, natural ventilation, or mechanical ventilation, the air exchange rate is low and pollutant levels can increase.
Use a Smart Thermostat
Use a Ceiling Fan
Insulate and Seal Your Doors and Windows
Shade Your Windows
Avoid Heat Buildup During the Day
Maintain Your Cooling System
How can we save energy from AC?
Set your thermostat high. …
Keep the sun out. …
Make sure your home is well-insulated. …
Keep your air filters clean. …
Don’t place appliances next to your thermostat. …
Use ceiling fans. …
Keep a professional maintenance schedule. …
Replace your old AC unit.
we understand that running an AC unit can consume substantial amounts of energy and that you don’t want to spend a fortune having a perfectly running AC, we can help to upgrade, repair, and help you save money in a medium and long timeframe