Norlake Walk-In Cooler Installation
Refrigeration Capillary Tube Troubleshooting for Technicians
A capillary tube is found in wide variety of refrigerators, water coolers, air conditioners and deep freezers. This component connects the condenser to the evaporator, and its length determines the amount of refrigerant at a specific pressure. Sometimes, issues can pop up that prevent cooling from happening. the capillary...
Scotsman Ice Machine Repair
Scotsman is an international corporation that manufactures ice makers. These ice makers are available in different models unique in producing Ice cubes of different shapes and textures. Although this equipment is efficient in working and easy to use still, it may start causing problems. That's why Scotsman ice machines troubleshooting...
How to Recharge the Freon in a Commercial Refrigerator or Freezer
Chlorofluorocarbons (CFCs,) often known as Freon®, and their replacements, hydrochlorofluorocarbons (HCFCs), are being phased out, globally. Consequently, R-22, HCFC-141b, HCFC-142b can no longer be produced or imported into the United States. Freon that has been stockpiled or that is cleaned and recycled, however,...
How to Replace a Temperature Controller on a True t-49/f Refrigerator or Freezer
It’s fair to say the temperature controller on a True t-49 reach-in refrigerator and t-49f reach-in freezer works hard. When it quits working, you may see a p1 error code. Of the variety of electronic controllers used across their model lines, only the Dixell electronic temperature controller issues a p1 alarm. It means...
R32 vs R290 vs R134a vs R12 Refrigerant
With more refrigeration and HVAC units being retrofitted to support new refrigerant bans and protocols, knowing about these key chemicals is crucial to maintenance and repairs. When technicians and facility managers search the web to learn about the refrigerant in the unit they're working on, there are four types that often...
What Happens If You Put R134a in an R12 System?
There are many answers to the question of whether or not you can put R134a refrigerant into an R12 system, and that’s for good reason. R134a and R12 are two different types of refrigerant used in A/C and refrigeration systems, and while they have the same function (cooling), they are actually opposites of one another. That’s...
R134a Pressure Chart for Refrigerators, Prep Tables & More
R134a refrigerant is an ethane-based hydrofluorocarbon used in a wide variety of refrigeration equipment, HVAC units and cars. Used as a primary replacement for R12 refrigerant, R134a refrigerant is considered a safe option because it has non-toxic and non-flammable properties and doesn't corrode. To help service technicians...
What Pressure Should R404a Run at on a Cooler?
When conducting repairs or diagnostics on a commercial cooler or freezer with R404a refrigerant, checking the pressure is key. However, in order to know the proper pressure, you also need to identify the correct corresponding temperature. The chart below helps you know what pressure R404a should run at.
R12 to R134a Conversion Chart & Formula
Retrofitting a unit from R12 to R134a refrigerant requires you to adjust the charge accordingly. The volume of r134a refrigerant is lighter than the same amount r12 refrigerant. This not only is important to know for commercial refrigeration units, but it also is vital when making repairs on HVAC equipment and even cars. Fortunately,...