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Showing posts from February, 2022

The effect of changes in exhaust pressure (condensing pressure) on the system

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The effect of changes in exhaust pressure (condensing pressure) on the system When the refrigeration system is running, the exhaust pressure corresponds to the condensation temperature, and the condensation temperature is related to the flow and temperature of its cooling medium, the amount of refrigerant injected, the efficiency of the compressor, and the amount of cooling load. When checking the refrigeration system, you can install an exhaust pressure gauge on the exhaust pipe when inspecting the refrigeration system to detect the exhaust pressure as a fault analysis data. Factors of high exhaust pressure. The exhaust pressure is higher than the normal value due to the following factors: low cooling medium flow rate or high cooling medium temperature, excessive refrigerant charge, heavy cooling load, etc. The above factors will increase the circulation of the system, and the condensing heat load will increase accordingly. In order to adjust the heat dissipation, the only way to incr...

What’s the difference between plate freezer and blast freezer?

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  What’s the difference between plate freezer and blast freezer? As for blast freezing, we have different machines to make it. For example, spiral freezer, tunnel freezer, liquid nitrogen freezer. But most popular, it’s the plate freezer and blast freezer. So here are the differences.  1. Blast freezer For a blast freezer or air blast freezer, only the evaporator is working. It guarantees the room temperature to be between -30C and -40C. Products inside the cold room would be get frozen within certain hours, like 4 hours, 8 hours, or 20 hours. Blast freezer is used to keep food safe at very low temperatures for the long time. Normally we would use the trolley to carry the products. So it’s very flexible and most products are no problem.  2. Plate freezer But as for the contact plate freezer. You see, it doesn’t have any fan motors. Only the freezing aluminum plate. Plate freezers are designed to meet limited space requirements. Stainless steel panels on both sides. Good i...

How to set the room temperature with controller EK3030E?

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For CRYO’s refrigeration unit, we use the controller EK-3030E (Elitech brand). Most of our customers do not know how to set the room temperature and other parameters for this type of controller. Now, let us learn together: Full article:   cold room control 1) Set the room temperature: Firstly, if you see there is a lock signal displayed on the screen, we should unlock the keyboard by pressing the ’OK’ button for one second. Secondly, press ‘off temp’ button and the screen will show off temp. Then, you can use ‘up arrow’ button or ‘down arrow’ button to change this off temperature value. 2) Set other parameters: Under the status of controller unlocking, press ‘OK’ button for 5 seconds, and it will display code ’F1’ on the screen. Then, press the ‘up arrow’ button to select the parameters that you want to set. Finally, press ‘OK’ button to enter this parameter and change its value. Cold Room Remote Control Platform (an APP developed by Cryo System) is the advanced way to  c...