Also check all gauges to be sure temperatures subcooling superheat and pressures are all normal.
Walk in cooler condenser freezing up.
It is also a big energy user but is rarely even thought of until an issue happens.
This was a service call on a walk in cooler that was iced up i found multiple problems with the system including a very dirty evaporator coil and a refrige.
Improper air flow check to make sure there is nothing blocking the return air vent this is the opening where the air goes across the evaporator coil and returns to the unit.
Icing doesn t only cause physical damage.
Walk in cooler and freezer problems like compressor failure and failure to maintain pressure can result in costly loss of products inside the cooler.
When the interior components of your walk in have to compete with excess humidity and warm air they have to work harder to maintain temperature levels.
This causes them to use more energy driving your utility bill up.
With r22 40 will start frosting.
5 reasons spot cooler coils freeze up and what to do about it.
Day time night time try to increase the suction pressure high enough so that you will not reach 30 deg suction press.
If airflow is blocked you ll end up with a frozen coil.
To find the btu size of the refrigeration needed for your walk in we have provided a sizing tool to estimate the required btu s your unit will use.
The walk in freezer or walk in cooler is a major part of many convenience stores cafeterias and restaurants.
Walk in cooler evaperator keeps freezing up suction pressure will varies to the ambient temperature ie.
The buildup of ice on a walk in cooler s evaporator coils ceilings drain pan and other surfaces is one of the most common causes of malfunctions so it s important to set a routine defrost schedule and regularly check the equipment.
It can also greatly increase the operating costs of running your walk in freezer.
Next check for a clean coil and clear drain line.
My walk in freezer a kolpac that had a bad txv i replaced it now the refrigeration system runs but the recovery is slow the super heat at compressor inlet is 30 degrees and currently have the expansion valve fully open and the crank case presser regulator all the way in this gives me 30 degrees super heat at the compressor and eight degrees.