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FAQ'S

 How are the sizing capacities of heating and cooling systems measured?

The heating and cooling systems are sized according to their tonnage. One (1) ton equals 12,000 BTU/H. Residential systems can range from 1 to 5 tons.

 What size HVAC system should I have?

Contrary to popular belief there, is no rule of thumb for sizing a system to a home. Depending upon the construction of your home, one (1) ton of air conditioning can cool anywhere from 300 to 800 square feet of home. The only way to insure the size of the system you purchase will be large enough to cool your home, but not any larger than you need, is to have your home’s individual heating and cooling needs evaluated by a professional.

How can I increase the efficiency and life of my home’s heating and cooling systems?

 The most important thing you can do is clean and replace your filters frequently. Also, a system heats and cools more evenly when the blower is in the “on” position. The blower provides constant air movement throughout the home, and allows for better filtration. Finally, shades, drapes, shutters, or screens should be installed on windows that are exposed to extreme sunlight.

 Is a system with more capacity better?

 No. A larger system with more capacity delivers less comfort and costs more to operate. An air conditioner is at its least efficient when first turning on. A system with too much capacity will run in numerous short cycles, turning on and off repeatedly, therefore causing it to be less efficient. Also keep in mind that an air conditioner only removes humidity when it’s running, so a system with shorter run cycles doesn’t remove humidity from the air very well.

 How long should my system run in a cycle?

There is no exact answer for how long your system should run during each cycle. The average air conditioner is sized to remove the heat from your home as fast as it comes in, on a 90° day. Therefore, ideally, on a 90° day the system should be able to keep up with the incoming heat, but not gain on it and be able to turn off. The cooler it is below 90 the more the system will cycle on and off.

What temperature should I set my thermostat?

 Obviously the time of year becomes a big factor for desired temperature settings. In the summer months the average temperature setting is 78°-80°, in the winter 70°-72° seems to be the most common setting. Remember, when leaving your house; try to avoid drastic temperature changes. Do not set your temperature back more than 5°; this will cause your unit to work harder to achieve the desired temperature setting.

What should I do if my air conditioner stops working?

First, shut-off the unit at the thermostat. Next, check the filter to see if it is clogged with debris and change if needed. Check to see if the breaker has been tripped at the main electrical panel. Check to see if the thermostat is operational or requires battery replacement. Contact us for repairs or service if needed.

How often should I change or clean my filters?

Standard filters should be changed every 6 - 12 months as needed. To change, replace the filter with the correct size and follow all manufacturer's instructions. Contact Cunningham Associates for filter upgrade options or any questions about replacing the filter.

How often should I have my heating and air conditioning equipment serviced?

We recommends annual maintenance on both your heating and cooling systems. Cooling systems should be checked prior to the hot summer months, and heating systems should be checked prior to the cold winter months.

How often should Freon be added to my air conditioner?

Air conditioners are a closed system and should not require adding refrigerant. If the equipment is low on refrigerant, there may be a service-related problem or a leak in the system. Refrigerant leaks can be repaired in some cases or may require equipment replacement. Contact us for repairs or service if needed.

What can a homeowner do to ensure the equipment operates efficiently?

Keep your filters clean. Keep leaves, foliage and other debris from building up around outside air conditioners. It is important to schedule routine maintenance, safety inspections and repairs.

Should the blower fan motor be set to “On” or “Auto”?

It is generally recommended to set the fan motor to the "auto" position.

What do I need to know about R-22 and R-410A Refrigerants?

R-22 is commonly referred to as Freon. This refrigerant has been used for many years in air conditioners. Manufacturers stopped producing equipment that used R-22 refrigerant in 2010. R-410A has been developed as an environmentally friendly refrigerant. Most manufactures now offer this option when purchasing a new system.

What happens to my old equipment when it is replaced?

All refrigerants are recovered from the equipment and recycled. The old equipment is recycled as scrap metal.

What steps are taken to protect my floors during the installation process?

In order to protect your home, the installation technicians prepare the job with drop cloths in appropriate areas and will always use caution when working in your home. The technicians wear shoe covers inside to keep your home clean. All debris is removed at the completion of the job, and all work areas are cleaned up.

Services                                      
Ac Replacement

Ac Repair
Ac maintenance

Sigma Air Conditioning
224 12th Ave New York,NY 10001
Tel. (646)727-9322

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