Condensing Unit Reviews Category Index
Honeywell Gas Furnace Ignition Control Modules | HVAC Heating
Honeywell Gas Furnace Ignition Control Modules | HVAC Heating. There are many different types of gas furnace ignition control modules that control a gas furnace or gas boiler. These solid-state control modules can easily be retrofitted to replace other control...
York Variable Frequency Drives VFDs | HVAC Control
York Variable Frequency Drives VFDs | HVAC Control - Variable Frequency Drives or VFDs have added a whole new dimension to energy efficiency and control. These drives, or VFDs, are hooked up to two different York VAV air handlers that have two three-phase motors a...
HVAC Refrigerant Leaks | Air Conditioner Leaking Freon® – R410A – R22
What you will learn from HVAC Refrigerant Leaks: This article will instruct you on the top reasons and places in the HVAC system for refrigerant leaks. Some people say Freon® leaks. What happens when an air conditioner or heat pump has a low...
Boiler Combustion Efficiency | HVAC Heating Systems
Boiler Combustion Efficiency | HVAC Heating Systems - It is important to understand that a commercial application (can also apply to residential boiler applications) is going to consume a large amount of the energy budget, therefore it is important to track efficiency...
Heat Exchanger & Domestic Hot Water Storage Tank
Heat Exchanger & Domestic Hot Water Storage Tank - In the front is a commercial heat exchanger. Behind the commercial heat exchanger is a domestic hot water storage tank. The entire system is monitored by direct digital controllers to control the water...
Gas Furnace Troubleshooting and Repair – HVAC Heating
What you will learn from Gas Furnace Troubleshooting and Repair : Where to begin your troubleshooting efforts Checking the basics Checking the blower motor Additional furnace component checks for problems Lots of valuable related links to give you a...
Blank Display on Thermostat Problem – Screen Disappeared
Blank Display on Thermostat Problem - Screen Disappeared - The thermostat display is our interface with our HVAC equipment. The display lets us know what the temperature is in the house. The display tells us what the desired settings are including letting us know the...
Boiler Troubleshooting Problems for Hydronic Heating Systems
Boiler Troubleshooting Problems for Hydronic Heating Systems - Troubleshooting boiler problems will depend on what the problem is with the boiler. The scope of this article will cover the basic boiler problems that can occur with a boiler. Advice for troubleshooting...
Boiler Supply and Return Piping
Boiler Supply and Return Piping - Any heating pipe system will experience a heat loss in the pipe even when the pipe is insulated. The loss is far greater when the pipe is uninsulated. Good boiler piping insulation will reduce the heat loss experienced in the pipe run...
Gas Oil Vent Flue Vents Materials Table | HVAC Heating
Gas Oil Vent Flue Vents Materials Table - Gas and oil vent flue piping uses different types of materials depending on the applications. It is important that gas or oil flue vent pipes are installed correctly and maintained throughout the life of the furnace This pipe...
How To Light a Pilot Light – HVAC Heating
How To Light a Pilot Light...
How to Wire a Thermostat | HVAC Control
What You Will Learn from this How to Wire a Thermostat Article: the most common trouble call by service and repair HVAC companies about thermostat wire with a resource for more information the best advice for changing your thermostat the most...
HVAC Indoor Air Quality Solutions
HVAC Indoor Air Quality Solutions - There are many different types of HVAC air filters. The most common type of HVAC air filters is the fiberglass disposable filter that you buy at most hardware or retail stores. Other types of HVAC air filters include the metal or...
Attic Installation Horizontal Flow Air Handler | HVAC Airflow
This is a horizontal flow air handler installed in the attic. Notice the drain pan under the air handling unit to catch condensation if the primary pan were to overflow. This is the secondary condensation pan which is installed under the air handler to save a ceiling....
Superheat and Sub-Cooling Refrigeration HVAC
Superheat and Sub-cooling - In HVAC refrigeration coils and fans are used for air conditioners and heat pumps to transfer heat in one direction or another. A good HVAC technician is well versed in refrigeration. Refrigeration is defined as moving heat from one place...
Gas Furnace is Making Too Much Noise | Diagnosis and Repair
Gas Furnace is Making Too Much Noise - Richard, my gas furnace makes a lot of noise when it is running and it is somewhat annoying and sometimes bothers me when I am sleeping. It is installed in a closet close to my bedroom. What can I do to fix this gas furnace that...
HVAC School Education | Heating and Cooling
HVAC School Education | Heating and Cooling - A solid career in HVAC career begins with a good education in a good HVAC school. You can start at different levels and work your way up with a career. As you work your way up you will want to continue your education not...
HVAC Mechanical Code Overview | Heating and Cooling Codes
HVAC Mechanical Code Overview - Many people unfamiliar with air conditioning and heating do not know that the mechanical code regulates air conditioning and heating system installation in many municipalities. HVAC Mechanical Code Overview | Heating and Cooling Codes...
IAQ Ventilation Basics | HVAC Indoor Air Quality
IAQ Ventilation Basics - Indoor air pollution can be reduced and possibly eliminated by taking corrective action using a defined plan. The first step is called an IAQ audit and often requires the services of both an HVAC Test and Balance (TAB) Company and an...
Oil Furnace Condensation Problems | HVAC Heating
Oil Furnace Condensation Problems - This Oil Furnace has flue gas condensation problems as one can see from the white residue forming on the front of this oil furnace. This problem occurs when the flue gases are not hot enough to rise above and out of the flue. Oil...
Wire Type and Sizing Considerations | HVAC Technical
Wire Type and Sizing Considerations - When a professional electrician looks at a job to wire a house or a new circuit in any structure the primary consideration in the wiring job is the size and type of wire to be used for the job per the NEC. The same for a plumber...
Mini-split Air Conditioners or Ductless Air Conditioners Basics
Mini-split Air Conditioners - Ductless air conditioners are like regular air conditioners with ducts in that the compressor is located outside. They are often preferable to window units for aesthetic reasons. Ductless air conditioners are not good for cooling more...
Residential Hot Water Boiler Control | HVAC Heating
Residential Hot Water Boiler Control - The average residential/light commercial boiler typically uses different controls to sequence the boiler. Boiler control in commercial and industrial applications can be very complex and can have added layers of controls outside...
Honeywell Oil Burner Ignition Control | HVAC Heating
Honeywell Oil Burner Ignition Control | HVAC Heating - This Honeywell oil burner ignition control controls the oil burner sequence of operation. On a call for heat from the thermostat, the oil burner ignition control starts the burner blower. this mechanically...
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