Quality appraisal of heating and cooling equipment

Heating and cooling equipment is an important part of household appliances and is also widely used in industry, medical care, transportation and other fields. Various types of heating and cooling equipment have different application requirements and technical characteristics in different fields.
Refrigeration and heating equipment usually consists of compressors, condensers, expansion valves, evaporators, etc. The compressor is responsible for compressing the refrigerant into a high-pressure gas, cooling it into a high-pressure liquid through the condenser, and then reducing its pressure through the expansion valve to become a low-pressure liquid. The low-pressure liquid enters the room through the evaporator, absorbs the heat in the air, and then circulates again through the expansion valve and compressor.
In the case of heating and cooling equipment quality appraisal, Zhongke Testing can provide heating and cooling equipment quality appraisal services.

JG/T 299-2010 Technical conditions for energy storage equipment for cooling and heating
JG/T 409-2013 Radiant panel heat exchangers for cooling and heating
JG/T 403-2013 Test methods for thermal performance of radiant cooling and heating devices
RB/T 083-2022 Specification for energy efficiency evaluation of building heating and cooling systems

A hot spring pavilion and an environmental protection technology company signed a project contract. It was agreed that the environmental protection technology company would be responsible for the equipment purchase, sale and installation of the bathing heating and cooling project in the computer room of the hot spring pavilion.
However, inspections of the equipment installed by the environmental protection company found that there were still many problems. Later, after negotiation between the two parties, the environmental protection company agreed to promptly rectify the existing problems and implement them one by one according to the quality issues raised by the hot spring resort. In the following months, the hot spring resort repeatedly requested the environmental protection company to complete the repairs as soon as possible in various forms, but the environmental protection company has not yet done so. In desperation, the hot spring resort could only file a lawsuit in court, requesting to terminate the contract and have the environmental protection company compensate for the corresponding losses.
was entrusted by the court to conduct an appraisal and analysis on "whether there are quality problems" with the heating and cooling equipment involved in the case.
appraisal analysis results: The
appraisal analysis expert group discussed the relevant information and on-site investigation of the heating and cooling equipment involved in the case and conducted a comprehensive quality and technical analysis, and made the following suggestions and conclusions:
The model of the unit used on site is the same as The model stipulated in the contract does not match; and according to the working conditions provided by the environmental protection company, the system cannot guarantee that the system can provide 400kW of cooling capacity; under full load conditions, the unit power can reach 100kW; however, the unit cannot perform normal cooling and heating at the same time, and the hourly water flow rate of the on-site PID heat recovery machine cannot meet the requirement to provide 40 tons of heat.