Air Conditioner Problems - As an HVAC technician I am aware of all the problems air conditioners can develop. Therefore, you will get a unique perspective on air conditioner problems. And hopefully, how to avoid these problems. Air conditioners have become a norm in today’s society. Forty or fifty years ago air conditioners were considered a luxury. Now there are building designs where the occupants must rely on air conditioning to remain comfortable.
Additionally, with higher energy costs it is important that our air conditioners are maintained. Hence, a properly maintained system uses less energy and repair costs are lower and less frequent. (more…)
Refrigerant Pump-Down Method - Can an HVAC Technician “Park” Refrigerant in the Condenser? What you will learn from Refrigerant Pump-Down Method article:
We answer a technical question by one of our readers concerning the refrigerant pump-down method
HVAC Duct Systems - Ductwork systems channel the air to the spaces where it is needed from the air handler. HVAC duct systems also will pull the air from the space and channels it back to the air handler where it needs to be conditioned. In some commercial applications, the area above the ceiling is considered the return duct. All the return air is channeled back to the air handler through the plenum where it is conditioned in the air handler. Part of the conditioning process is the air being passed through an air filter and then an exchanger like a coil or heat exchanger. (more…)
Air Conditioning Preventive Maintenance | HVAC Spring Cleaning - Do You Benefit from Maintenance Agreements?
Air conditioning preventive maintenance is a thorough check of the air conditioning system by a professional HVAC Technician. The technician will check the following:
Air Handler Smoke Detectors NFPA - Installing duct smoke detectors or smoke detectors in air handlers are not ideal for the protection of life and property in the event of a fire or smoke condition. The NFPA and mechanical codes cover smoke detectors. (more…)
This is an air conditioner condensation drainpipe that drains the condensation from the evaporator coil. The evaporator coil operates below the dew point when the system is in air conditioning mode. As humid air passes over the cold evaporator coil the humidity or moisture in the air condenses. The condensation runs down the coil and into a condensation drain pan. (more…)
Heat Pump Thermostats - To the average person a heat pump thermostat can be a very complicated thermostat compared to the typical thermostat which serves an air conditioning system with gas, electric, or an oil furnace. Of course, the heat pump thermostat typically has more wire terminations than the regular thermostat.
It has more switches to control emergency heat, and some even have lights, which will indicate that the auxiliary heat or emergency heat is functioning. Most heat pump thermostats are two-stage thermostats for the heating mode and a single stage for the cooling mode.
What is NATE? HVAC Education NATE Certification - NATE stands for North American Technician Excellence and NATE is a certification group that oversees the training, testing, and certification of HVACR technicians throughout North American. NATE is highly respected throughout the HVACR industry and an HVAC technician who achieves NATE certification is considered very knowledgeable and skilled in the HVAC trade or HVAC certification specialty. It is a step up in heating and cooling education for HVAC Techs. (more…)
Most air conditioning and heating systems require some form of ductwork. Ductwork channels or directs the air to places in the dwelling where the conditioned air is needed. There are many types of ductwork available. Often times the ductwork can make a big difference in your utility bills. For that reason, it is important that the ductwork is installed correctly by qualified installation technicians. (more…)
Scroll Compressors - One of the workhorses for heat pumps and air conditioners is the scroll compressor. The scroll compressor works as many other compressors do as far as the refrigeration process is concerned. The scroll compresses the refrigerant thereby raising its pressure and temperature. The compressor does its job by making cool refrigerant and turning it into hot refrigerant changing both the temperature and the pressure. Since the late 90′s, the scroll has taken off and has nearly replaced the reciprocating compressor in the average air conditioner and heat pump system. Two-stage scroll compressors have replaced using two reciprocating compressors in an air conditioner or heat pump condenser that is high efficiency.
HVAC Tip - Did you know the human body produces approximately 250 BTU/h when sleeping? Here is a basic list of the approximate BTU/h produced by the human body for various activities:
Watching Television - 400 BTU/h (any sedentary activity)
Cleaning the house - 700 BTU/h (moderate activity)
Mowing the Grass w/push mower - 1800 BTU/h (heavy activity)
Running a marathon - 2400 BTU/h (extreme activity)
The number of people occupying a dwelling or space is a consideration in the load calculation for sizing air conditioning systems simply because humans do give off heat. BTW, the Matrix over blew the numbers. In the movie Morpheus states humans give off over 25,000 BTU's. Only the author of this website is that hot..............))))))
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Air conditioners have become a norm in today’s society. Forty or fifty years ago air conditioners were considered a luxury. Now there are building designs where the occupants must rely on air conditioning to remain comfortable.
HVAC Duct Systems - Ductwork systems channel the air to the spaces where it is needed from the 
This is an air conditioner condensation drainpipe that drains the condensation from the evaporator coil. The evaporator coil operates below the dew point when the system is in air conditioning mode. As humid air passes over the cold evaporator coil the humidity or moisture in the air condenses. The condensation runs down the coil and into a condensation drain pan. 
Heat Pump Thermostats - To the average person a heat pump thermostat can be a very complicated thermostat compared to the typical thermostat which serves an air conditioning system with gas, electric, or an oil furnace. Of course, the heat pump thermostat typically has more wire terminations than the regular thermostat.
Most air conditioning and heating systems require some form of ductwork. Ductwork channels or directs the air to places in the dwelling where the conditioned air is needed. There are many types of ductwork available. Often times the ductwork can make a big difference in your utility bills. For that reason, it is important that the ductwork is installed correctly by qualified installation technicians. 
Scroll Compressors - One of the workhorses for heat pumps and air conditioners is the scroll compressor. The scroll compressor works as many other compressors do as far as the refrigeration process is concerned. The scroll compresses the refrigerant thereby raising its pressure and temperature. The compressor does its job by making cool refrigerant and turning it into hot refrigerant changing both the temperature and the pressure. Since the late 90′s, the scroll has taken off and has nearly replaced the reciprocating compressor in the average air conditioner and heat pump system. 