HONGFA Relay HF18FF-024-4Z2DJ

09/14/2020

Smart vortex flowmeter

1. Function introduction: On-site LCD meter display, real-time temperature, real-time pressure, instantaneous flow, flow accumulation, temperature and pressure compensation function, when measuring gas and steam, check the meter according to the measured temperature and pressure to ensure compensation The flow rate is not affected by temperature and pressure changes,

07/29/2020

Accurate fluorine addition method for air conditioning maintenance

Accurate fluorine addition method for air conditioning maintenance Adding fluoride is a basic skill in air conditioning maintenance, and it is also a highly technical job. The following are some of the experiences that colleagues have explored in the maintenance practice, and discuss with readers

08/14/2020

What issues need to be considered in the construction of logistics warehouse cold storage

1. Location Logistics warehouse cold storage is generally built in a location with cheap land price and relatively convenient transportation according to the development of the enterprise.

08/09/2020

Common oil shortage failures of scroll refrigeration compressors

The compressor is short of oil for a long time-the mechanism and the friction pairs are overheated, causing the bearings to sinter and hold the shaft.

02/27/2025

Cooling Tower: Components, Working Principle, Types, Applications, and Precautions

A cooling tower is a device that uses the contact between water and air through the process of evaporation to dissipate waste heat generated in industrial or air conditioning systems.

08/07/2020

Is the cold storage running too power-consuming 7 recommended energy saving methods

With the development of Chinese economy and the increase in the urban population, the consumption level of the people continues to increase.

08/20/2020

Air conditioner repairs are too messy the repairman has just walked for 10 minutes and the repaired air conditioner is broken again

"The air conditioner broke down after a while after it was repaired. Now I want to contact the maintenance company but I don't care what it says." Recently, as the temperature rises, the air conditioner usage rate has continued to increase

07/31/2020

Air conditioner compressor failure Be sure to find out the underlying cause of the compressor failure!

The compressor is the energy core of the air-conditioning refrigeration (heating) system. In the refrigeration system, it mainly plays the role of compressing refrigerant and promoting the continuous circulation of refrigerating oil.

07/16/2020

Compressor overheating

The compressor is overheated, causing it to stop shortly after start-up (protector action). Please check whether it is:; Insufficient or excessive refrigerant, please fill the leak and evacuate, add enough refrigerant or release excess refrigerant. The capillary assembly (including the filter) is clogged and the suction temperature rises. Please replace the capillary assembly.

07/07/2020

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