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Tag Archives: ductwork

Air Handler Equipment DDC Controllers | HVAC Control


Air Handler Equipment DDC Controllers

Air Handler Equipment DDC Controllers | HVAC Control

Air Handler Equipment DDC Controllers – These controllers will control an air handler once the wiring is completed. The panel is freshly mounted and waiting for the technician to run the piping and pull the wire from the control points. Other points, such as outside air, temperature sensors in piping or duct work, flow meters, actuators, or other control points can be terminated to these controllers and the data collected from those input points can be networked over the entire building automation system through the communication trunks. Included in this panel are: a terminal strip connection point for line voltage and control voltage, a transformer to step-down line voltage to the required control voltage of 24 volts which powers the controllers and a surge arrestor which is a requirement on many government jobs.


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Condensing Unit Frozen Wont Turn Off


Condensing Unit Frozen Wont Turn Off

What you can expect to learn from this article: this article is an answer from a question taken from our email by a visitor to High Performance HVAC. We often use the questions we get in the email as a guide to write articles. The topic is a condensing unit that will not turn off and it is freezing up. From my experience in the field and using my HVAC knowledge I offer the readers a list that could cause this problem. We hope it helps you.

What’s the possible problem with a frozen air conditioner condenser that won’t turn off except with the breaker?

Related Link: Here is a similar but different problem with a frozen air conditioner.

The Answer for frozen air conditioner condensing unit that won’t turn off –

There are 3 possible problems with this unit and will probably need the attention of an HVAC Technician for repair. Here’s the 3 possible problems:


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Air Conditioner Ductwork Leaks | HVAC Airflow


Air Conditioner Ductwork Leaks

A good consideration when replacing the air conditioning system is the duct work.

Air Conditioner Ductwork Leaks

Red Arrow Shows a Duct Work Leak

Duct work seems to be the most ignored part of an HVAC system but is a very important consideration in this age of new technology and higher energy efficient equipment being developed and manufactured. You can have the most energy efficient engine but if its in an old 60 or 70’s model car your efficiency is going to suffer. The same is true with HVAC systems. You can have the most energy efficient compressor available on the market but if your duct work is leaky or your house or business is not properly insulated that high efficient system you just spent big dollars on is wasted money. For more insight on HVAC ductwork see the High Performance HVAC Ductwork Page.


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Air Handler Components 3 | HVAC Air Handling


Air Handler Components: Hot Water Coil Heat

Air Handler Components 3Air Handler Components – 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 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.


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Pricing New Air Conditioner | HVAC Heating and Cooling

Pricing New Air Conditioner Cost Price for New Heat Pump


Pricing New Air Conditioner Cost Price for New Heat Pump

Pricing New Air Conditioner

We get emails on a regular basis asking us about 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 for a new system through email or forum without first looking at the house and other factors involved with giving someone a price.


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SUNDAY, July 05, 2015

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HVAC Tips: Helping You Learn

HVAC Preventive Maintenance: Just like a vehicle needs preventive maintenance, HVAC systems need a regular maintenance schedule. Having maintenance performed on your air conditioning and heating systems now can help you avoid costly repairs in the future. Air Conditioning and heating preventive maintenance also pays for itself by making the unit more efficient, safe, and reliable. Often, a technician can spot a ten dollar part that needs replacing now where if it is let go and not replaced, can cost you hundreds of dollars more in the future. The old phrase is true, "pay me a little now, or a lot later." I see it everyday. Basic maintenance on condensers and air handling units will save you money in the long run. If your local heating and cooling company offers maintenance agreements look into getting one for your home or business. Typically, companies offering maintenance agreements waive overtime charges for after hours or emergency calls and offer you reduced prices on parts. That is in addition to performing preventive maintenance twice annually.

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