Ductless Minisplit - Common Pollutants and HVAC!

Ductless Minisplit - Second-Hand Smoke.

Second-hand smoke is tobacco smoke which affects other people other than the 'active' smoker. Second-hand tobacco smoke includes both a gaseous and a particulate phase, with particular hazards arising from levels of carbon monoxide (as indicated below) and very small particulates (at PM2.5 size) which get past the lung's natural defences. The only certain method to improve indoor air quality as regards second-hand smoke is the implementation of comprehensive smoke-free laws.

Ductless Mini Split System - Radon.

Radon is an invisible, radioactive atomic gas that results from the radioactive decay of radium, which may be found in rock formations beneath buildings or in certain building materials themselves. Radon is probably the most pervasive serious hazard for indoor air in the United States and Europe, probably responsible for tens of thousands of deaths from lung cancer each year.There are relatively simple tests for radon gas, but these tests are not commonly made available, even in areas of known systematic hazards. Radon is a heavy gas and thus will tend to accumulate at the floor level. 

 

Building materials can actually be a significant source of radon, but little testing is carried out for stone, rock or tile products brought into building sites; radon accumulation is greatest for well insulated homes.[3] The half life for radon is 3.8 days, indicating that once the source is removed, the hazard will be greatly reduced within a few weeks. Radon mitigation methods include sealing concrete slab floors, basement foundations, water drainage systems, or by increasing ventilation.They are usually cost effective and can greatly reduce or even eliminate the contamination and the associated health risks.

Ductless Mini Split Heat Pump - Molds and Other Allergens.

Mold health issues, Mold growth, assessment, and remediation. These biological chemicals can arise from a host of means, but there are two common classes: (a) moisture induced growth of mold colonies and (b) natural substances released into the air such as animal dander and plant pollen. Moisture buildup inside buildings may arise from water penetrating compromised areas of the building envelope or skin, from plumbing leaks, from condensation due to improper ventilation, or from ground moisture penetrating a building part. In areas where cellulosic materials (paper and wood, including drywall) become moist and fail to dry within 48 hours, mold mildew can propagate and release allergenic spores into the air.

 

In many cases, if materials have failed to dry out several days after the suspected water event, mold growth is suspected within wall cavities even if it is not immediately visible. Through a mold investigation, which may include destructive inspection, one should be able to determine the presence or absence of mold. In a situation where there is visible mold and the indoor air quality may have been compromised, mold remediation may be needed. Mold testing and inspections should be carried out by an independent investigator to avoid any conflict of interest and to insure accurate results; free mold testing offered by remediation companies is not recommended.

 

There are some varieties of mold that contain toxic compounds (mycotoxins). 

However, exposure to hazardous levels of mycotoxin via inhalation is not possible in most cases, as toxins are produced by the fungal body and are not at significant levels in the released spores. The primary hazard of mold growth, as it relates to indoor air quality, comes from the allergenic properties of the spore cell wall. More serious than most allergenic properties is the ability of mold to trigger episodes in persons that already have asthma, a serious respiratory disease. Mold is always associated with moisture  and its growth can be inhibited by keeping humidity levels below 50%. Moisture problems causing mold growth can be direct such as a water leaks and/or indirect such as condensation due to humidity levels.

Fujitsu Ductless Mini Split - Carbon Monoxide.

One of the most acutely toxic indoor air contaminants is carbon monoxide (CO), a colourless, odourless gas that is a byproduct of incomplete combustion of fossil fuels. Common sources of carbon monoxide are tobacco smoke, space heaters using fossil fuels, defective central heating furnaces and automobile exhaust. Improvements in indoor levels of CO are systematically improving from increasing implementation of smoke-free laws. By depriving the brain of oxygen, high levels of carbon monoxide can lead to nausea, unconsciousness and death. According to the American Conference of Governmental Industrial Hygienists (ACGIH), the time-weighted average (TWA) limit for carbon monoxide (630-08-0) is 25 ppm.

Install Split Unit AC. Air Conditioning Specialist.

Install Split Unit AC. Professional Certification.

To become an air conditioning specialist, you will typically need to complete both classroom and on-the-job training in working with air conditioning systems and units. In some jurisdictions, you may be required by law to hold a government-issued trade license before practicing. Other areas may require or strongly encourage you to obtain professional certification as an air conditioning specialist before you can begin your career. Depending on where you live, you may be required to obtain training, certification, or licensure in a more general field, such as heating, ventilation, and air conditioning (HVAC) before you can become an air conditioning specialist. Training is available through vocational schools, the military, or apprenticeship programs.

How to Install Split Air Conditioner?. Restrictions.

Due to health and safety concerns, many jurisdictions place restrictions on those who want to work with air conditioning systems. These restrictions typically require an individual to obtain some type of contracting or trade license before being allowed to practice as an air conditioning specialist. Contact the government agency in your area that regulates trades and professions to find out what the requirements are for licensing. If you live in an area that does not require licensing, you should seek out professional certification through a respected trade organization. Ask about your training alternatives. 

How to Install Split AC? Vocational School.

You may be able to enroll in a vocational school, or there may be an apprenticeship program that you can apply to. Other jurisdictions will only ask you to show proof of several years of on-the-job experience, so you may be able to begin your quest to become an air conditioning specialist by applying for a job with an air conditioning installation and repair firm.

How to Install a Split Rail Fence? Stricter Standards.

If you live in an area that enforces stricter standards for those who wish to become an air conditioning specialist, you can expect to spend several years studying and working in the field before you can obtain your professional license. After you complete your education and training, you will typically have to sit for a licensing exam that will cover the various areas of air conditioning installation and repair that you have learned over the years. After completing the exam and your education, you will be able to apply for your license. Some areas may also require you to post a bond, demonstrate financial stability by showing that you have a certain amount of money in the bank, or require you to purchase an insurance policy for your business before you can be fully licensed as an air conditioning specialist.

 

Split Gree Air Conditioners - Displacement Ventilation.

Split Gree Air Conditioners. Large High Spaces. 

Displacement ventilation systems supply air directly to the occupied zone. The air is supplied at low velocities to cause minimal induction and mixing. This system is used for ventilation and cooling of large high spaces, such as auditoria and atria, where energy may be saved if only the occupied zone is treated rather than trying to control the conditions in the entire space.

Split Gree Ar Condicionado. Improve the Thermal Comfort and Indoor Air Quality.

Displacement room airflow presents an opportunity to improve both the thermal comfort and indoor air quality (IAQ) of the occupied space. It also takes advantage of the difference in air density between an upper contaminated zone and a lower clean zone. Cool air is supplied at low velocity into the lower zone. Convection from heat sources creates vertical air motion into the upper zone where high level return inlets extract the air. In most cases these convection heat sources are also the contamination sources (e.g., people, equipment, or processes), thereby carrying the contaminants up to the upper zone, away from the occupants.

Split Gree Cooling. Displacement Outlets. 

The displacement outlets are usually located at or near the floor with the air supply designed so the air flows smoothly across the floor. Where there is a heat source (such as people, lighting, computers, electrical equipment, etc.) the air will rise, pulling the cool supply air up with it and moving contaminants and heat from the occupied zone to the return or exhaust grilles above. By doing so, the air quality in the occupied zone is generally superior to that achieved with mixing room air distribution.

Split Gree. Supply Air Temperatures.

Since the conditioned air is supplied directly into the occupied space, supply air temperatures must be higher than mixing systems (usually above 63 °F ) to avoid cold draughts at the floor. By introducing the air at supply air temperatures close to the room temperature and low outlet velocity a high level of thermal comfort can be provided with displacement ventilation.

 

Mini Split Air Conditioning Senville Unit - What are Central AC?

Mini Split Air Conditioning Senville Unit - Air Conditioning Solutions.

Central air conditioning units are air conditioning solutions that work to create a pleasant temperature and humidity level within an enclosed space. In most cases, the main unit is situated on the exterior of the building and functions with the use of ductwork. In addition to cooling the air and keeping the humidity at a tolerable level, central air conditioning usually aids in removing dust, lint, and other allergens from the interior of a home or workplace.

How does a Mini Split Air Conditioner Work? - Designs and Models.

There are different designs or models for central air conditioning units around the world. Many designs call for the use of what is known as split air conditioning. This model involves locating the compressor and the condenser of the unit outside the interior space, such as on a slab situated near an exterior wall or on the roof of the edifice. Inside the evaporator is located in the air handler section of the unit, near the ductwork.

 

With a package system approach to central air conditioning, all the necessary components are contained in one simple unit that is installed on the ground just outside the building or on the roof. In both cases, the design calls for the use of ductwork to handle the collection and distribution process that helps to create the controlled interior environment.

Mini Split Carrier - Key Features.

A basic air conditioning unit of this type performs several key functions. First, air is pulled into the unit, cooled, then routed into all the rooms of the space by way of the ductwork. Along with cooling the air, many systems also include purification filters. These filters help to remove different types of allergens from the returned air, such as pet dander, dust, and other allergens. People who struggle with allergies often find that central air conditioning units offer relief that is hard to achieve otherwise.

Mini Split Trane - Working with moisture.

A third function of most central air conditioning units is to regulate the humidity level within the home or workspace. Essentially, this process helps to remove excess humidity from the returned air, making the interior space more comfortable. This aspect of room air conditioning is often considered just as important as reducing the temperature of the air circulating throughout the building.

Mitsubishi Ductless Aircon Heating and Cooling Keeping It Cool.

Mitsubishi Ductless Aircon. Selecting Your Air Conditioner.

Size does matter when choosing an air conditioner, so it's important to get a unit with the cooling capacity to handle the room where it will be installed. A unit that is too small may not be able to cool a space efficiently, while an oversized air conditioner in too small a space will cycle on and off, wasting energy and decreasing the unit's ability to adequately dehumidify the room. 

 

While there are many different types and sizes to choose from, not all air conditioners are created equal. As you shop for your new air conditioner consider the following: 

 Where and how the air conditioner will be installed or used?  How large is the room where you plan to install your new unit? What special feature options are most beneficial to you? Will you be installing your new air conditioner by yourself or will you have help?

Mitsubishi Ductless Air Conditioning Systems. Advantages of Window units.

Window units are by far the most popular. Models can be installed in most single or double-hung windows and typically come with accordion panels that allow for a secure fit. Some models can fit in sliding windows. They do require a support of some kind, such as a wooden plank or a specially designed shelf that can be attached to the exterior of your home for dedicated reinforcement.

 

Installing a window unit is an easy DIY project. Make sure you measure the inside window dimensions before you shop.Advantages: Easy to install, Easy to remove and store, Affordable, Heating and cooling units available, Blocks window where installed.

Mitsubishi Ductless Air Conditioning Reviews. Advantages of Portable Air Conditioners.

Portable air conditioners or freestanding units can be used to cool a specific area in a home such as a bedroom. They don't require any permanent installation and instead have a standard window venting kit for the exhaust hose. Many portable units are mounted on casters so you can move them freely from room to room. They come with a large, flexible hose that is attached to a window for exhausting hot air, much like a clothes dryer is vented.

 

Most portable units have reservoirs that need to be periodically emptied, though some also come with optional hookups for a drainage hose. Some new models evaporate much of the moisture and exhaust it, greatly reducing the frequency of need to empty a container. Portable air conditioners can also be used to support any central HVAC (Heating, Ventilating, Air Conditioning) systems. When choosing the right portable air conditioner be sure to measure the room size (length x width), match the room size with the BTU and check electrical requirements. Advantages: Easy to set up or relocate, Can use in multiple rooms.

Mitsubishi Ductless Air Conditioner Review. Advantages of Wall units Air Condtioning.

Built-in air conditioners can be installed in your wall for permanent placement and operation. These units often provide both cold and hot air operation for more versatile use. They are a great solution for rooms or additions to your house that may not be connected to the central heating and air conditioning system.

 

Wall units require opening a hole in an exterior wall. They don’t take up window space, and they allow for a more airtight and secure fit. Many window models can be installed through the wall, just add a frame to support the unit. Smaller units can be installed by handy do-it-yourselfers. Larger wall units may require professional installation. Advantages: Permanent, Models with heat function available, Location flexibility, Option to use wireless thermostat.

Minisplit Heat Pump Install. Selecting a Thermostat.

Minisplit Heat Pump Install. Choose the Type of Thermostat.

The two basic types of thermostats are manual and programmable. Both work with a variety of gas, oil and electric furnaces and control air conditioning as well. Manual thermostats are typically found in older homes. These units are economical and have simple controls. They offer limited energy savings and comfort, but can work efficiently if you’re diligent about changing settings as the temperature changes. Many older units contain mercury and offer limited energy savings and comfort control.

 

Programmable thermostats adjust the temperature automatically throughout the day, saving you as much as 33% on heating costs and up to 15 to 25% on cooling. Advanced models can switch back and forth between heating and air conditioning during seasonal transitions. They have an easy-to-operate digital interface, and newer models are mercury free.

How to Install a Mini Split?. Identify Your Heating and Cooling System.

Product packaging makes selecting a thermostat compatible with your HVAC system simple. Below are a few terms with which you should be familiar to determine capability with your HVAC system. 

 

Works with 1 stage heat or cool – For use where you have separate heating and air conditioning units. Works with 2 stage or multi-stage heat or cool – For heating or cooling units that have a high and low speed. Works with Direct Line Voltage – 110 or 240 direct current power source used in some older homes to power the thermostat. Works with 24mV – For use with a fireplace, floor, or wall furnace. Zoned HVAC - Heating and/or cooling is individually controlled in different areas from the same HVAC system.

Mini Split Heat Pump Reviews. Choose the Options That Fit Your Lifestyle.

Select a thermostat that allows you to change the settings as often as you need. Programmable thermostats allow you to set different temperatures at different times of the day, providing the appropriate level of comfort while you are home and adjusting to a set-back, or energy-saving temperature, when you're away or asleep.

Many thermostats come preset with a schedule based on a typical household’s energy needs.  For most homes, a pre-programmed thermostat requires no adjustment – simply install and you’re ready. When determining the appropriate thermostat, you should consider the flexibility you need from day to day. There are three primary options:

 

7-day programming – Allows you to program each day of the week separately. This option is perfect for today’s busy family with different schedules every day.

5-2 programming - Allows you to set a standard program during the week while you’re at work and another program for the weekends when you’re spending more time at home.

5-1-1 programming – Allows you to set a standard program during the week in addition to separate programs for both Saturday and Sunday. A great option for families with a structured weekend schedule. 1-week - Allows you to set one basic program that runs all week long.

How to Install a Mini Split Air Conditioner?. Setting Temperatures.

A common misperception is that a furnace has to work harder to warm a house after the temperature has been set low during the day, eliminating any energy and cost savings. Studies have shown that the energy used to reheat the house is less than that used to maintain temperatures throughout the day at a higher setting, so you do actually save on energy costs by setting the temperature low at night and during the day while you’re away.

 

In general, setting your thermostat is simply a matter of adjusting your thermostat to the times you are home or away. The chart below is an example of one way to set your thermostat schedule.

 

 

Ductless Split Systems - Dehumidifier.

Ductless Split Systems. Reduces the Level of Humidity.

A dehumidifier is generally a household appliance which reduces the level of humidity in the air, usually for health reasons. Humid air can cause mold and mildew to grow inside homes, both of which pose numerous health risks. Very humid climates or air make some people extremely uncomfortable, causing excessive sweating that can't evaporate in the already-moisture-saturated air.

 

 It can also cause condensation that can disrupt sleeping, or prevent laundry from drying thoroughly enough to prevent mustiness. Higher humidity is also preferred by most pests, including clothes moths, fleas, cockroaches, woodlice and dust mites. Relative humidity in dwellings is preferably 30 to 50 percent.

Ductless Systems Mini Split. Control Relative Humidity.

By their operation, dehumidifiers produce an excess of water which has been removed from the conditioned air. This water, usually called condensate in its liquid form, must be collected and disposed of. Some dehumidifier designs dispose of excess water in a vapor, rather than liquid form.[clarification needed] Energy efficiency of dehumidification processes can vary widely. Dehumidifiers are also used in industrial climatic chambers, to control relative humidity within certain rooms to stay at levels conducive to processing of products.

Ductless Systems Heating Cooling.  Thermal Condensation.

These methods rely on drawing air across a thermocline. Since the saturation vapor pressure of water decreases with decreasing temperature, the water in the air condenses on the cold surface, and is separated from it.

Ductless Systems Heat Pumps.  Mechanical/Refrigerative.

Mechanical/refrigerative dehumidifiers, the most common type, usually work by drawing moist air over a refrigerated coil with a small fan. The cold coil of the refrigeration device condenses the water, which is removed, then the air is reheated by the hot coil. This process works most effectively with higher ambient temperatures with a high dew point temperature. In cold climates, the process is less effective. They are most effective at over 45 percent relative humidity, higher if the air is cold.