Climate Control
The 10 Most Common Questions About ZoomLock® Flame-Free Refrigerant Fittings
With the introduction of ZoomLock Flame-Free Refrigerant Fittings we have come across many people in the HVACR industry that have questions about using it. So here we answer the 10 most...
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HVACR Tech Tip: How to Stop Hydraulic Hammering Noise in Heat Pump Systems
Customers have complained of hydraulic hammering noises on heat pump systems for years. Field people refer to it as the “knock-knock” noise. The complaints usually surface at the end of the heating...
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HVACR Tech Tip: How to Properly Clean a Condenser Coil
Condenser coil cleaning is one of those subjects in which there is much misdirection and misinformation being propagated by some manufacturers/distributors that has caused unfortunate confusion in the...
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HVACR Tech Tip: How to Clean Evaporator Coils for Preventive Maintenance
When it’s time to provide your customer's preventive maintenance don’t forget to pay particular attention to system components that are out of sight within the system cabinet or air handler enclosure....
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HVACR Tech Tip: Coil Cleaning Basics for the HVACR Service Technician
Cleaning air conditioner condenser and evaporator coils is a basic need for proper system maintenance. In fact, it is probably the number one performed maintenance task by air conditioning...
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HVACR Tech Tip: What Every Technician Needs to Know About Refrigeration Oils
Here is some information concerning refrigeration oils that every HVACR technician will find useful. Oil types Mineral – a by-product in the distillation of crude oil to produce gasoline. Mineral...
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HVACR Tech Tip: Maintaining Refrigerant Flow in Thermostatic Expansion Valves
Most supermarket refrigeration equipment breakdowns are repeat problems. When responding to refrigeration service calls at supermarkets, refrigeration technicians immediately play...
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How to Distinguish a Process Water Cooler from a Chiller
There are numerous manufacturers in the water cooler market. Water coolers are also called chillers but it is important to draw a clear distinction between process water coolers and chillers...
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HVACR Tech Tip: Prevent Destructive Superheat with TREV Liquid Injection
A large percentage of compressor failures in low-temperature vapor-compression refrigeration system applications originate from overheating. Typical compressor capacity rating data is based on...
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HVACR Tech Tip: Obtaining Oil Samples in a Refrigeration or Air Conditioning System
Monitoring the acid level in a refrigeration or air conditioning system is of the utmost importance. Contaminants such as water and air are important factors in the formation of acids in the...
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HVACR Tech Tip: A Psychrometrics Reminder for the HVACR Technician
Here is information on Psychrometrics that should help remind the HVACR technician what this subject is all about... with perhaps a few tidbits the tech may not have known! Psychrometrics: the...
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HVACR Tech Tip: Everything You Want to Know About Superheat
Superheat is the temperature of refrigerant gas above its saturated vapor (dewpoint) temperature. Superheat as it relates to thermostatic expansion valves, can be broken down into three Superheat...
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Top 5 HVACR and HVAC Climate Control Technology Blogs of 2017
In 2017, many changes impacted the HVACR, HVAC climate control industry. New technologies emerged that changed the way we do business – most for the better! But they also brought a shift in the way we...
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Top 9 Parker Blogs of 2017
2017 marked Parker Hannifin's Centennial year in business. It all started back in March of 1917, in a machine shop which built pneumatic brake systems for trucks, trains, buses and...
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Innovation Takes Center Stage in 2017 Best Mousetrap Competition
Each summer, Parker engineering and business development experts from around the world gather at the company’s headquarters in Cleveland, Ohio to showcase their group’s portfolio of innovative new...
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HVACR Tech Tip: Master Using the P-T Chart with the ChillMaster Mobile App
The HVACR service technician uses an array of tools and test instruments to diagnose problems and evaluate system performance. One tool that is readily available, inexpensive and yet rarely used to...
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Sizing a Chiller for Your Application - What You Need to Know
When sizing chillers for an application, it is necessary to ensure the unit adequately sized to handle maximum process loads in worst-case site conditions. However, customers may fail to plan...
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Use of Suction Line Filter-Driers for HVAC Clean-up After Burnout
The Suction Line Filter-Drier method of cleaning up a system after a hermetic motor burnout is favored by service technicians and recommended by manufacturers throughout the HVAC and...
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HVACR Tech Tip: Understanding and Preventing Superheat Hunting in TEVs
A common problem facing refrigeration and air conditioning service technicians and contractors is that of superheat hunting by thermostatic expansion valves (TEVs). Here is a better understanding of a...
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HVACR Tech Tip: Considering a Refrigeration System Retrofit? Part 3
This is the third part of a three-part series of posts on high-glide refrigerants for refrigeration system retrofits. Part 1 covered calculating superheat and subcooling with glide, and control of...
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