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
On May 15, 2019
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...
On April 18, 2019
A refrigerant distributor is a device connected to the outlet of an
expansion valve when paired with a multi-circuit evaporator. The
outlet of the distributor is machined to accept tubing...
On March 19, 2019
To obtain long term system life, it is important to keep
contaminants to a minimum. This is particularly true of a heavy
duty application such as a heat pump. Therefore, all heat pumps
should have at...
On February 20, 2019
Manufacturers have been successfully applying Parker Sporlan
Thermostatic Expansion Valves on Heat Pump Applications for many
years. Parker Sporlan's large diaphragm and durable welded element
On January 29, 2019
Working in the HVAC and Refrigeration industry there are many times
when you are going to have applied torque when working on a
particular job. In this blog, we help you understand the basics...
On December 18, 2018
Today more and more applications are utilizing “heat reclaim” as a
means of providing a supplementary or even a primary heat source.
Heat reclaim can significantly lower energy costs. Heat reclaim...
On November 14, 2018
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...
On October 24, 2018
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...
On October 10, 2018
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...
On September 11, 2018
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
On August 22, 2018
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
On July 31, 2018
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
On July 12, 2018
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...
On July 2, 2018
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...
On June 19, 2018
Most supermarket refrigeration equipment breakdowns are repeat
problems. When responding to refrigeration service calls at
supermarkets, refrigeration technicians immediately play...
On June 5, 2018
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...
On May 15, 2018
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...
On April 10, 2018
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...
On March 13, 2018
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
On February 13, 2018