EPRs: What They Do & How They Impact the Entire Parallel Rack

1. What is the circled component in the image below?

Evaporator pressure regulating valve (EPR) Oil reservoir Oil regulator Oil separator

Previous Next

2. True or False: Market refrigeration systems have a dedicated oil pump that moves liquid oil through the system.

True False

Previous Next

3. Which of the following is a method we can use to cool compressors?

Fan mounted to the head Liquid injection Vapor injection All of the above

Previous Next

4. True or False: There will always be one case for each circuit.

True False

Previous Next

5. What is the purpose of an EPR?

To take an undesired saturated suction temperature (SST) and change it to an ideal level To let you set a custom cutout temperature that shuts the entire rack down To stop the evaporator from getting flooded To hold back evaporator pressure at a specified saturated suction temperature (SST)

Previous Next

6. What does SPORT valve stand for?

SORIT Placed On Regulator Tube Solenoid Parker Open on Rise Tap Solenoid Placed On Rise Tap SORIT Parker On Regulation Tool

Previous Next

7. How does a CPS valve modulate itself?

Electronic steppers Sensing bulbs with a stable fluid enclosed Pressure transducers It doesn't modulate

Previous Next

8. What does it mean if a refrigerant has high glide?

It's a blend that will have its properties compromised in a leak It's a blend with the dew point and bubble point far apart It's a pure refrigerant with extremely high pressures It's a pure refrigerant with multiple saturation temperatures at atmospheric pressure

Previous Next

9. What does Matthew Taylor recommend using to set the EPR if you have a refrigerant with high glide?

Dew point Midpoint Bubble point Any of the above

Previous Next

10. Where is the highest pressure in the entire system?

By the oil separator By the oil regulator By the oil reservoir Right before the EPR

EPRs: What They Do & How They Impact the Entire Parallel Rack