What is a walk in cooler evaporator?
A walk in cooler evaporator serves the purpose distributing the cold air inside your cooler. Think of your walk in cooler evaporator as a type of fan system, constantly blowing and cycling the cold air. An example of a specialty unit would be a walk in cooler evaporator in a floral cooler.
What causes a cooler evaporator coil to freeze?
As the air cools, the vapor condenses into a liquid, which falls on the coil and later drips into a catch pan underneath the coil. Airflow blockages can also lead to frozen evaporator coils. Without enough air flowing through the coils, the refrigerant pressure eventually drops and the coils begin to ice over.
How cold should refrigerator evaporator coil be?
The evaporator coil is cold (about 40° F), and the air from the house is warm (about 75° F, depending on where you set your thermostat). Heat flows from warmer to cooler, so the air temperature drops, and the refrigerant picks up the heat lost by the air.
Should the evaporator coil be cold?
1 Answer. You never want the coils in the evaporator to ice up. Ice can damage the coils and reduces the airflow. More often I find dirty coils outside many times filled with dust so they are not cooling the refrigerant.
Where is the evaporator located on a walk-in cooler?
Refrigeration systems consist of a condensing unit and an evaporation coil. The condensing unit is located outside the walk-in and the evaporator is located inside the walk-in. The compressor compresses gas to a liquid.
What should the temperature be in a walk-in cooler?
between 35 to 45 degrees Fahrenheit
So how cold should your walk-in cooler be? Ultimately, the temperature of your walk-in refrigerator will depend on the product you’re carrying, but in most cases, it should be between 35 to 45 degrees Fahrenheit. Since water’s freezing point is around 32°F, you don’t want the temperature to drop to that point.
What should evaporator temp be?
Evaporator temperatures below 32° are common and acceptable in refrigeration; that’s why there is a defrost sequence. In a heat pump running in heat mode, it’s the same; freezing is a part of the process, and defrost is necessary. In comfort cooling, we can’t allow the evaporator to get below 32°, or it will freeze.
How do you test an evaporator coil?
Checking the evaporator coil A visual check of the evaporator coil often requires you to work in a tight space as you remove panels from the furnace or blower cabinet, and use a flashlight to see inside the coil assembly. Even then, you may not be able to make a thorough and accurate examination of the coil.
What temp should my evaporator be?
How do you check evaporator coil temperature?
Measure the suction line temperature at the evaporator coil outlet. 75 degrees RA – (35 degrees design temp difference) = 40 degrees evaporator coil. 40 degrees + (8 degrees-10 degrees superheat) = 48 degrees-50 degrees suction line temperature. ±2 degrees = 46 degrees-52 degrees acceptable line temperature range.
