Commercial refrigeration - Articles - Page 5

Finding and Fixing Refrigerant Leaks Is Frustrating but Necessary

September 3, 2018

It is always best to find and repair the source of the leak. But depending on the size of the system and the size and location of the refrigerant leak, it may not be an easy or inexpensive repair.

Preventing Refrigerant Floodback and Migration Before It’s Too Late

John Tomczyk

September 3, 2018

Refrigerant floodback occurs when liquid refrigerant enters the compressor’s crankcase during the running cycle. Refrigerant floodback will dilute the compressor’s oil with liquid refrigerant, which will cause oil foaming in the crankcase, washing the bearings clean of their lubricating oil.

Identify All Problems Before Quoting a Refrigeration Job

A Series of Unfortunate Events

Joe Marchese

August 6, 2018

Here is the potential problem: A contractor quotes a customer on the compressor replacement, and he agrees to repair the cooler at the quoted price. Then, as the technician is completing the job — or even after he has finished replacing the compressor — he finds out there is another system problem.

Seven Telltale Signs of a System Overcharged with Refrigerant

System checks result in faster troubleshooting

John Tomczyk

August 6, 2018

Consider the same system as last month’s column — a medium-temperature refrigeration system incorporating a liquid high-side receiver, a TXV as the metering device, and R-134a refrigerant — but the measured and calculated values are listed in Table 2, along with this detailed system analysis.

California state Sen. Ricardo Lara noted that one of the key barriers to the adoption of low-GWP equipment is its high first cost, which the incentive program is trying to mitigate. - The NEWS - ACHR

The Case of Natural Refrigerants Versus the ‘Super Pollutants’

Conference highlights options available for commercial refrigeration

Joanna R. Turpin

August 6, 2018

The three-day event featured educational sessions and panel discussions that covered everything from technology and market trends to regulatory updates to what the future of the refrigeration industry may look like.

PAHRA Approves Johnstone Supply Training Program

The only HVACR distributor to receive accreditation

September 11, 2017

The heating, air conditioning, and refrigeration training program offered by Johnstone Supply (Grimme Group) through its Johnstone Solutions University has received national accreditation by the Partnership for Air Conditioning, Heating, Refrigeration (PAHRA) program, making it the only HVACR wholesale distributor in the country to receive such an accreditation.

PAHRA Approves Johnstone Supply Training Program

The only HVACR distributor to receive accreditation

September 11, 2017

The heating, air conditioning, and refrigeration training program offered by Johnstone Supply (Grimme Group) through its Johnstone Solutions University has received national accreditation by the Partnership for Air Conditioning, Heating, Refrigeration (PAHRA) program, making it the only HVACR wholesale distributor in the country to receive such an accreditation.

Promoting a Positive ATMOsphere

Despite withdrawal from Paris agreement, mood upbeat at natural refrigerants conference

Ron Rajecki

August 7, 2017

A few days prior to the start of the recent ATMOsphere 2017 conference held June 5-7 in San Diego, President Donald Trump announced that the U.S. would be withdrawing from the Paris climate agreement. That did little to dampen the mood among the conference’s 400-plus attendees.

Emerging From the Regulatory Tunnel

Freezer and cooler manufacturers are primed to get back to customer-centric innovation

Ron Rajecki

July 10, 2017

These are interesting times for manufacturers of freezers and coolers and the contractors who install and service these essential commercial refrigeration units.

Have an Ice Day

Ice machine manufacturers continue to meet consumers’ insatiable cravings

Ron Rajecki

July 10, 2017

The ice machine industry is always working hard, innovating, and dealing with regulations in order to meet the insatiable demand for the perfect ice cubes, crescents, and nuggets.