Refrigeration
HVACR Tech Tip: Interchangeable Cartridge Style Thermostatic Expansion Valves Save Time & Money
Contractors provide service to customers with many different system applications in the field with an even wider variety of capacity requirements. Today, the number of refrigerants that a...
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How Greener Materials and Technologies Are Impacting the HVACR Industry
As forward-looking city planners react to the news of climate change by tightening building codes for heightened energy efficiency and air quality, contractors and distributors are on the front lines...
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HVACR Tech Tip: Top 5 FAQs About Thermostatic Expansion Valves (TEVs)
Not everyone is familiar with all the intricacies of HVACR as we are at Parker Sporlan and that’s okay. Whenever you have questions, you can always contact our world class Technical Support team or...
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How to Use Virtual Engineer for HVACR Product Selection
Parker Sporlan's new web-based product selection program, Virtual Engineer, allows the user to size, select and fully configure products for Air Conditioning and Refrigeration applications. Virtual...
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Refrigeration Tech Tip: Do Not Let Your Ammonia Refrigeration System Be Robbed of Efficiency
Non-condensable gasses such as air, hydrogen, nitrogen, and hydrocarbons reduce the overall efficiency of refrigeration systems. The effects of non-condensable gasses, in a refrigeration system,...
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HVACR Tech Tip: How to Determine Total Refrigerant System Charge When Using Head Pressure Control
The design and operation of Parker Sporlan Head Pressure Control Valves are discussed thoroughly in Bulletin 90-30. Installation and service is covered in Bulletin 90-31. This Climate Control...
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HVACR Tech Tip: Guidelines for How to Size Solenoid Valves for Split Condensers
As most of us know, sizing solenoid valves for split condensers seem to be more of an art, than a science. Many tangibles affect the calculations. This Climate Control blog will provide...
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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: 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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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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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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HVACR Tech Tip: Considering a Refrigeration System Retrofit? Part 2
This is the second part of a three-part blog series on high-glide refrigerants for refrigeration system retrofits. Part 1 covered calculating superheat and subcooling with glide, and control...
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HVACR Tech Tip: Considering a Refrigeration System Retrofit? Part 1
Refrigerant choices for refrigeration systems are undergoing significant change, including choices for retrofits and new systems. This article is Part 1 of a 3 part series addressing such retrofits,...
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HVACR Tech Tip: Basic Troubleshooting Given Three Measurements
What if you are only given 3 measurements? As HVACR technicians, you need some ideas in your back pocket for basic troubleshooting in a refrigeration system. How about a simple chart that helps you...
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HVACR Tech Tip: What You Need to Know About Flooded Head Pressure Control
Below are six questions that will help you learn most of what you need to know about flooded head pressure control.   1. Why do you need a receiver? The flooded head pressure control valve maintains...
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HVACR Tech Tip: Using Bi-Directional Solenoid Valves for Heat Pumps
A solenoid valve with a built-in check valve is designed to replace a liquid line solenoid valve in parallel with a check valve for reverse flow. This valve may be applied in the liquid line of...
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HVACR Tech Tip: Principles of Thermostatic Expansion Valves
In order to understand the principles of thermostatic expansion valve operation, a review of its major components is necessary. A sensing bulb is connected to the TEV by a length of capillary tubing...
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HVACR Tech Tip: When Should a Catch-All Filter-Drier be Changed?
It is important to locate a filter-drier in a refrigeration system. Its role is to remove moisture from the refrigerant and lubricant by absorbing and retaining moisture deep within the...
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HVACR Tech Tip: 12 Solutions for Fixing Common TEV Problems
When responding to a refrigeration service call at a supermarket, the refrigeration technician immediately plays “problem percentages” upon entering the store. Most refrigeration equipment breakdowns...
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