News- Zhejiang Brozer Refrigeration Technology Co., Ltd.

Oct

How to Extend Compressor Lifespan: A Practical Guide for Refrigeration Systems

A semi-hermetic compressor that is correctly sized, fed clean refrigerant, and kept inside its operating envelope can run 15 to 20 years. The same unit installed with a 3 K superheat error, a partly blocked oil return l...
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Sep

How to Design a Cold Room for Fruits and Vegetables: 7 Practical Steps

A cold room can display a steady 2 °C and 92% relative humidity and still cost you a week of shelf life. The setpoint is the last five percent of the design. What actually protects produce is the order of the decisions ...
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Sep

How to Choose a Water Chiller for Factory Use: Complete Selection Guide

If a factory chiller is too small, you will see process temperatures drift every afternoon. If it is too large, the compressor cycles too often, part-load efficiency drops, and the evaporator can freeze up. That is why ...
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Sep

Condensing Unit Sizing Guide: How to Select the Right Unit for Cold Rooms

A cold room installer once reported a new condensing unit that took four hours to pull a 200 m² chilled room down instead of the specified two. The compressor was running hot, the discharge pressure was normal, but the ...
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Sep

Cold Room Capacity Calculation Formula: Storage Tonnage and Cooling Load Guide

Two buyers can ask for "a 300-ton cold room" and mean completely different things. One cares about how many pallets the room holds; the other cares about how much heat the refrigeration plant must remove every day. In p...
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Aug

Semi-Hermetic vs Hermetic Compressor: Which One Should You Choose for Your Cooling System?

You are comparing two compressors for a cold room project. One quote is lower. The other compressor costs more but has a bolted housing that a service technician can open. Which one should you buy? Choose a hermetic com...
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Aug

R290 vs R404A Refrigerant: Performance, Safety, Cost, and Retrofit Guide

Picture a cold storage supervisor reviewing last quarter's energy bills. The compressors run almost continuously, and the R404A in the lines is becoming harder to justify. A vendor suggests R290, but the cylinder carrie...
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Aug

Natural Refrigerants for Commercial Refrigeration: CO2, Ammonia, Propane Guide

When you specify a commercial refrigeration system in 2026, the first decision is the refrigerant. With high-GWP HFCs under phase-down through the Kigali Amendment and the EU F-Gas Regulation, natural refrigerants such...
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Aug

How Do Condensing Units, Compressors, Evaporators and Condensers Work Together?

Quick Answer A working cold room, water chiller or refrigeration storage system is never built from a single part. It is a matched set: a condensing unit sized to the room's heat load, a compressor (scroll, piston or sc...
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Jul

What Are the Functions of a Condenser? Full Guide

A condenser's core job is simple: it takes hot, high-pressure refrigerant gas coming from the compressor and turns it back into a liquid by removing heat. Without this step, a refrigeration system cannot repeat its cool...
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Jul

What are the different types of condensers?

There are three main types of condensers used in refrigeration and HVAC systems: air-cooled, water-cooled, and evaporative. Air-cooled condensers use fans to push ambient air across finned coils, water-cooled condensers...
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Jul

How to Check Refrigeration Part Compatibility With Your System？

Quick Answer A refrigeration part is compatible with your system when four things match at once: the refrigerant type, the working pressure range, the connection size, and the electrical or capacity rating. If any one o...
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How to Extend Compressor Lifespan: A Practical Guide for Refrigeration Systems

How to Design a Cold Room for Fruits and Vegetables: 7 Practical Steps

How to Choose a Water Chiller for Factory Use: Complete Selection Guide

Condensing Unit Sizing Guide: How to Select the Right Unit for Cold Rooms

Cold Room Capacity Calculation Formula: Storage Tonnage and Cooling Load Guide

Semi-Hermetic vs Hermetic Compressor: Which One Should You Choose for Your Cooling System?

R290 vs R404A Refrigerant: Performance, Safety, Cost, and Retrofit Guide

Natural Refrigerants for Commercial Refrigeration: CO2, Ammonia, Propane Guide

How Do Condensing Units, Compressors, Evaporators and Condensers Work Together?

What Are the Functions of a Condenser? Full Guide

What are the different types of condensers?

How to Check Refrigeration Part Compatibility With Your System？

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