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
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
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
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
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...
On August 1, 2017
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...
On March 2, 2017
With our recent introduction of the Smart Service Tool Kit, there
have been many questions asked and answered. Let's review the ones
pertaining to buying and general details here: Q1: When will
On August 3, 2016
To ensure peak performance, solenoid valves must be selected and
applied correctly; however, proper installation procedures are
equally important. Aside from correct installation, troubleshooting
On July 19, 2016
We all know that a properly charged refrigeration system utilizing
a receiver must have a liquid and vapor interface in the receiver.
And we also know that saturated pressure and temperature...
On July 5, 2016
In air conditioning and refrigeration applications, the ability of
the thermostatic expansion valve (TEV) to match refrigerant flow to
the rate at which refrigerant can be vaporized in the...
On June 21, 2016
Parker's HVACR Tech tips cover service tips for the HVACR
technician servicing commercial refrigeration systems as well as
HVAC for both commercial and home. The following are
service tips for...
On May 24, 2016
Calculating Superheat and Subcooling requires cumbersome equipment,
writing down temperature and pressure readings, converting pressure
readings using a PT chart, and finally subtracting totals to...
On March 16, 2015
Lubricant-refrigerant mixture breakdown causes sludge formation and
other corrosive materials that will hinder the normal operation of
compressor valves and control devices in refrigerant and...
On August 1, 2014
Climate control is the technology of controlling fluids and gases
to vary temperature. Parker provides comfort, convenience and
control through refrigeration and air conditioning. Key
On July 1, 2013