Dwyer Switch MVS-5

08/02/2020

The working principle of screw compressor and comparison of fully enclosed, semi-closed and open type

Compared with reciprocating piston refrigeration compressors, screw refrigeration compressors have a series of advantages such as high speed, light weight, small volume, small footprint and low exhaust pulsation.

03/24/2025

PC Airflow Channel Design: the Best Layout of the Case Airflow Channel

The power supply, CPU, chipset, memory, and graphics card in the computer case can generate a lot of heat.

08/05/2020

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.

07/16/2020

ZB scroll compressor configuration

ZB scroll compressor configuration Compressor model; built-in pressure relief valve; exhaust temperature protection; exhaust check valve; motor protector; midpoint protector ZB15-ZB48; ZF09-ZF18; IPR; TOD has a midpoint protector ZB58-ZB114; None; ASTP has key protectors Built-in pressure relief valve (IPR valve)

08/20/2020

Several reasons for the poor cooling effect of air-cooled chillers

A chiller that uses a fan to exchange air to achieve the purpose of heat dissipation is called an air-cooled chiller. Based on the fact that the temperature in summer is getting higher day by day, and there is no maintenance for the chiller, then its cooling effect will definitely decrease.

07/29/2020

What faults frequently occur after the air conditioner is moved

Refrigeration system failures are common faults in our maintenance. The failure phenomena are also various and strange, but there are still rules to follow and experience can be used for reference.

11/14/2024

How much do you know about piston compressors

The piston compressor is driven by a motor. The motor drives the crankshaft to make a circular motion through a coupling or gear and belt. The crankshaft drives the connecting rod (changes the direction of the force) for reciprocating swing motion

06/29/2020

Suggestions for troubleshooting of compressor with liquid start

06/14/2020

About refrigeration compressor overload protector, we must understand these things

1. Why does the compressor produce overheat protection?

07/22/2020

The working principle of cooling and heating of air conditioning

In addition to the cooling function, the heating and cooling air conditioner also has the heating function. The biggest difference from a single-cooling air conditioner is that an electromagnetic four-way reversing valve is installed in the heating and cooling air conditioner.