B&R Module 3EX350.6

08/19/2025

Heat Pump Making Loud Noise in Cold Weather: Causes and Solutions

When the temperature drops outside, your heat pump becomes an essential part of your home's heating system. While it's common for heat pumps to make some noise during operation, loud or unusual noises can be a cause for concern.

08/03/2020

HVAC essential! Three steps to accurately calculate the cooling capacity of central air conditioning

The cooling capacity calculation of central air-conditioning is divided into three steps: 1. Calculate the actual cooling capacity required: Calculate according to the practical area of ​​the room (carpet area, the floor area of ​​the home can be deducted from the floor area); 150 watts per square meter;

08/18/2020

Causes that affect the low evaporation temperature of the refrigeration system of the constant temperature and humidity box

Recently, some netizens asked about the main factors for the low evaporation temperature of the refrigeration system of the constant temperature and humidity box.

08/11/2020

Correct adjustment method of opening degree of thermal expansion valve

The expansion valve is one of the four major components of the refrigeration system. It is an important device for regulating and controlling the flow and pressure of the refrigerant entering the evaporator, and it is also the "boundary line" between the high and low pressure sides.

09/16/2025

The Most Common Causes and Symptoms of Check Valve Failure

A failing check valve can be a disaster when you’re operating any liquid handling equipment. By understanding why valves fail and how to detect the early warning signs of valve failure

06/14/2020

How to protect the refrigeration compressor, you must master the following knowledge

When the compressor is running, some abnormal conditions may occur, such as: the discharge pressure is too high, the suction pressure is too low, the oil pressure is insufficient, the motor is overheated, and excessive liquid enters the cylinder. If an ab器2䀀
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07/15/2020

What you need to know about the electrical connection of Copeland refrigeration compressors

Please pay attention to the direction of the terminals in the junction box (single-phase: R, S, C; three-phase: T1, T2, T3). In order to ensure the normal start-up and operation of the Copeland refrigeration compressor, the power supply voltage cannot be lower than 10% of the Copeland compressor rated voltage.

07/18/2020

The safe operation rules of the cold storage Freon refrigeration compressor unit

Safety operating rules for Freon refrigeration compressor units in cold storage 　Freon refrigerants are generally used in cold storage refrigeration systems, so the following is a brief introduction to some of the operating specifications of Freon refrigeration units, so that everyone will feel very simple and relaxed when using them.

07/28/2020

Installation arrangement and heat preservation method of branch pipe

The branch pipe is also the central air-conditioning branch pipe, commonly known as the splitter (diverter). As the name implies, it is a pipe with one input but multiple outputs.

06/29/2020

Compression ratio of American Copeland compressor