by High Performance HVAC | Air Conditioning |
Replace HVAC Compressor for Air Conditioner Repair - Question - Richard - I am an HVAC technician and have read all of your articles on refrigeration and compressors. Great information and it has helped to hone my skills and offer better service for my customers. Thanks!
I was wondering what your experience is with replacing compressors. How do you decide to replace a compressor technically speaking, of course? Do you recommend repairing the air conditioner by replacing the compressor or replacing the central air conditioner?
I look forward to reading your answer. Brett Des Moines, WA
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by High Performance HVAC | Refrigeration |
HVAC Temperature Measurement Conversion - In air conditioning and heating applications it is necessary to accurately measure temperature to offer control of the temperatures relative to the application for which the HVACR equipment is serving. There are four separate temperature scales used to measure temperature and it becomes necessary at times to have the ability to convert between the different scales.
Aside from the temperature measurement scales and their use in HVAC, there are also methods for using specific tools to make those measurements. For example, in many cases, a technician needs to know the dry-bulb temperature and the wet-bulb temperature. In the old days, a technician would use a sling psychrometer to get the wet-bulb temperature.
Today, there are digital instruments that will measure the wet-bulb temperature for the technician. Here we begin with temperature conversion: (more…)
by High Performance HVAC | Technical Reference |
HVAC Definitions - In air conditioning and heating the name HVAC is often used. HVAC stands for heating, ventilation, and air conditioning. Other acronyms are less used to describe air conditioning and heating applications is HVACR or heating, ventilation, air conditioning, and refrigeration and HACR or heating, air conditioning, and refrigeration. (more…)
by High Performance HVAC | Technical Reference |
What You Will Learn in
HVACR Pipe Soldering Brazing
- Safety with Brazing and Soldering
- Basic Soldering and Brazing
- The Bread Trick with Water Pipes
- Alternatives to the Bread Trick
- Brazing with Oxyacetylene
- Cleaning and Fluxing
- Brazing with Nitrogen
- Nitrogen Pressure Testing
- Avoiding Problems with Oxidation
HVACR Pipe Soldering Brazing - In HVACR there are two major types of soldering done. Soft Soldering for soldering water pipes and brazing or silver soldering for soldering refrigeration piping. There are various techniques for both types of soldering and everyone develops their own in the field but it is important to follow the basics of soldering when joining the piping together. Following the basics of soldering will ensure success and we all enjoy a successful job completed.
As always safety is first with anything. Two big considerations must be adhered to when soldering or brazing:
- Eye protection and burn protection for hot dripping soldering. Keep yourself safe when soldering or brazing.
- The inherent risk of using an open flame around combustible materials. Always make sure you have a plan and use preventive techniques such as wet rags and fireproof clothe or barriers. This is especially true when soldering around wood or even outside (around a condenser) where pine needles or leaves can easily catch fire and spread rapidly. Always have either a hose or fire extinguisher handy.
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