This chilled water unit is a new ammonia chiller. This unit is also unique in that it has no compressor. Instead, it uses the chemical properties of ammonia and heat from natural gas to condense the refrigerant which is ammonia. A chiller provides chilled water to a chilled water loop. (more…)
VAV Air Handlers are ideal for providing zones in a commercial building. Office space typically has several offices and open areas that need to be conditioned for the comfort of the people working in those areas or offices. By installing VAV boxes and zoning the ductwork from those VAV boxes these areas and offices can be kept comfortable using a VAV air handler system. More on how VAV boxes work. (more…)
Air Handler Components 3 - Hot water coils inside of air handler units combine a boiler system or a special capacity hot water heater and forced air to provide forced-air heating. The concept is simple and used a lot in commercial and some in residential.
Commercial systems almost exclusively use a boiler to provide hot water to the hot water coil inside the air handler unit while the residential systems use mainly special capacity hot water heaters to provide hot water to the hot water coil inside the air handler unit.
On a call for heat, a pump is energized to begin the circulation of hot water from the heating source to the coil. The air handler unit blower motor energizes and the air begins to move across the coil. Heat is exchanged from the hot water coil to the air and the air is delivered to its appropriate destination through the ductwork.
Pricing New Air Conditioner - We get emails on a regular basis asking us about prices. Prices for a new air conditioner, heat pump system, boilers, and other types of HVAC systems. This article addresses those questions and why it is nearly impossible to give anyone an estimate.
Estimates for new systems are nearly impossible through email or forum. Someone needs to first look at the house and other factors involved with giving someone a price. (more…)
Air Conditioner Condensation Problems - It is important for air conditioning preventive maintenance to be performed on your system to avoid problems. Condensation water leaking near the air handling unit can be avoided with proper air conditioning repair and preventive maintenance. Normally this is a very simple problem that can be fixed in less than 30 minutes. Here is a list of what can cause water around the outside of the air conditioning air handler unit.
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Gas Furnace with Drain Pipes to Drain the Condensation.
Furnace Water Leak Condensate Problem - Richard, My furnace is leaking water. It is summertime, so I am not using it for heat except for the blower fan which is hooked up to the air conditioner and the heat. I know the pipes from the outside units run into a box on top of the furnace. I think that is a part of the air conditioner. What can I do to fix the problem if you know what the problem is by my explanation here? Dan
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Air Conditioner History - Air Conditioning has become a necessity in modern times as building designs have changed making it necessary to have some way to air-condition and cool buildings where windows cannot be opened. Throughout history, all the way up to the 70′s, many people just opened windows or turned on a fan to keep cool and air conditioning, what was once considered a luxury, has now practically become a requirement.
From the time people leave their homes in the morning to the time they return home many are in conditioned air most of the day and many people don’t even think about air conditioning unless the air conditioning is broken. Air Conditioning is definitely nice to have to remain comfortable throughout the day and is an expectation for most people working inside. (more…)
How Air Conditioning Works - Ever wonder how air conditioner works in a house? AC’s work by removing the heat from the space they service. An AC is simply a big refrigerator that uses the process of refrigeration to provide cooling for a building. AC’s work by using direct expansion coils or chilled water coils to absorb and move the heat from the air as air is blown across the coils.
Types of air conditioner systems that use direct expansion coils for cooling are window units, split system air conditioners, package unit air conditioners, packaged terminal air conditioners like the air conditioners used in hotels, and mini-split ductless AC’s. Essentially, an air conditioning system works by removing heat from the air. (more…)
How Inverters Work Basics - The new way for ultra-efficient air conditioners and heat pumps have modulating compressors and motors. A few years ago it was rare that I got an email asking the question about how inverters work but now I have noticed the question coming more and more so I wanted to write an article to explain how inverters work.
Inverters are used in air conditioning to modulate compressors and fan motors from 100% down to a minimum of 20% although the minimum will vary from manufacturer to manufacturer according to part selection and engineering limitations. To truly understand how inverters work one has to have a basic understanding of electronics. (more…)
