Panasonic Sensor EX-L291-J

08/24/2020

Do cold storage maintenance, you must understand this knowledge!

1. "Three Preventions" of the Refrigeration System 　　 1. Prevent the evaporation temperature from being too low 　　 The increase in the temperature difference between the evaporating temperature and the warehouse temperature will make the evaporating temperature too low

07/25/2024

Heat Pump Reversing Valve Structure, Working Principle and Troubleshooting

The heat pump reversing valve (HVAC reversing valve) is mainly used in heat pumps. Since there are mainly four pipes connected to it in structure, it is often called a four-way reversing valve.

07/17/2020

Cause Analysis and Treatment Method of Copper Tube Leakage of Evaporator of Single Cooling Unit

Cause Analysis and Treatment Method of Copper Tube Leakage of Evaporator of Single Cooling Unit A central air-conditioning system in a public area uses a screw chiller. During operation, a copper tube in the evaporator leaks due to a malfunction. After further inspection by the technical staff, it was confirmed that the fault was leakage of the copper pipe of the evaporator of the chiller.

07/07/2020

Earth Hour: Hitachi Central Air Conditioner works with you to speak for the earth

08/25/2020

Replace air conditioner! Cold pipe refrigeration system energy consumption is only half of air conditioning!

According to foreign media reports, from a new study in the Proceedings of the National Academy of Sciences, a research team composed of scientists from multiple countries has developed a refrigeration system called "cold pipe"

08/17/2020

The difference between a single-head chiller and a double-head chiller

1. Single-stage refrigeration system 　　1. The single-stage refrigeration cycle refers to the four processes of compression, condensation, throttling,

08/19/2020

Dry goods sharing There are so many applications of chillers, did you make them

Water chiller is an energy-saving machine that achieves cooling effect through vapor compression or absorption cycle. Billion times chiller is called cooling water cycle machine, also called chiller,

12/02/2024

AB Kinetix 5500 Servo Drive Indicator Light and Fault Codes Explained

Common faults in AB servo drive maintenance include: no display, phase loss, overcurrent, overvoltage, undervoltage, overheating, overload, grounding, parameter errors, display but no output, module damage and other faults.

08/12/2020

How did the sediment in the chiller come from

Water chiller is a kind of water cooling equipment that can provide constant temperature, constant flow and constant pressure cooling water equipment.

08/12/2020

Central air conditioning chiller water system and ventilation system cleaning method

The central air-conditioning ventilation system mainly includes air ducts, fresh air ducts, central air-conditioning wind cabinets, air supply outlets, air-sealing outlets, air handling units, and fan coils.