The automobile industry has a famous saying: "The first car is sold by salesmen, and the second and third cars are sold by after-sales service personnel." It can be seen that most car owners pay attention to after-sales service. Extremely high. According to a survey conducted by the China Quality Association and the National Users Committee, the car service service is highly concerned with 9.55 (the highest value is 10) among all concerned factors. According to surveys, the brand of after-sales service and the meticulous service are two aspects most consumers are more concerned about.
The "Zero Time Friends" service promised by the Jeep Co-brand has recently been promised: "Users make appointments by telephone before the dealer/service station finishes work. The dealer/service station will arrange services for them. It will be until midnight at the latest." At present, in the field of automotive after-sales service, the appointment of after-sales service projects can only be carried out at the normal time of work at the distribution/repair station. “Zhuyou Youya†takes the lead in making maintenance service appointments to zero, which brings users time. Flexibility, ease of arrangement.
At present, domestic auto companies attach great importance to after-sales service, have improved their own after-sales service system, and take this as an important deployment to open up the market. Beijing Hyundai Motor Co., Ltd., Shanghai General Motors Co., Ltd. and other companies also have established the 4S specification, which has detailed regulations from the reception of users to each service process and standard. The Chinese car has greatly extended the number of years and mileage for the “Three Guaranteesâ€. These companies attach great importance to after-sales services and have made a significant increase in sales.
Economizer with exhaust damper, fresh air damper, returan air damper and exhaust air damper. The dampers can be automaticlly controlled by PLC controller or by manual based on project needs.
This type HVAC system is another energy saving in the field of Air Conditioning.
Interlocked to run when return air dampers are being closed and supply air blower is in operation. The extraction fans run when outdoor air dampers are at least 50% open (adjustable). It is also overload protected. A gravity exhaust damper is supplied with this option to prevent air from entering the unit during shutdown.The power exhaust fans have been size to exhaust 50% of the nominal air flow of the unit.
The schematic diagram as below like free cooling system.
Rooftop Packaged Unit With Economizer
Rooftop Packaged Unit With Economizer,Economizer HVAC Residential,Portable Rooftop with Economizer,Economizer Rooftop Packaged Unit
Jinan Amrta Air Conditioning Co.,Ltd , https://www.waterchiller.pl