The first step is to determine the model to be tested in this enthalpy difference room, as well as the corresponding parameters, what are the national standards or industry standards according to the national standard or industry standard, the ability range (maximum capacity, minimum capacity) of each type of product to be tested, and the requirements of test accuracy.
Take the enthalpy difference room of a 3hp household air conditioner as an example.
This laboratory is mainly used to test household air conditioners below 3HP. The test standards are in accordance with GB T 7725-2004, EN14511, EN14512, ANSI AHAM RAC-1-2002, ISO5151, and refer to the Japanese JIS 8615 standard.
This laboratory is mainly composed of indoor and outdoor rooms that can adjust working conditions, control rooms, compression condensing unit humidifiers, cooling towers and pipelines, control cabinets and measurement and control systems that can adjust working conditions.
Samples that can be tested: window, split, cabinet, dehumidifier, mobile air conditioner, inverter air conditioner, two-speed or double compressor.
Test items: rated refrigeration capacity test, customized thermal capacity test, maximum operation refrigeration test, minimum operation refrigeration test, maximum operation heating test, minimum operation heating test, freezing test, condensate test, condensate removal test, automatic defrost test, etc.
Technical specifications (for reference only, subject to actual conditions).
1.Indoor side dry-bulb temperature range: 10 50
2.Indoor side relative humidity range: 30 90%rh
3.Outdoor side dry-bulb temperature range: -15 55
4.Outdoor side relative humidity range: 30 90%rh
5.Cooling capacity test range: 20~15kw
6.Heating test range: 20~16kw
7.The air volume measurement range of the indoor unit of the tested air conditioner is 4 40m3 min
8.Dry bulb temperature control accuracy: 02℃
9.Wet bulb temperature control accuracy: 02℃
10.Repeatability: 1%.
11.Accuracy: 2%.
12.Control mode: manual control or automatic control.
The second step is to use technical personnel, which positions are available, and which ones need to be recruited.
It takes a certain amount of time to recruit engineers, so you need to put it on the premise, otherwise when the laboratory is completed, it will not be able to be put into use due to the lack of corresponding technical personnel.
The third step is whether the company has a ready-made site to build an enthalpy room, if so, how to transform the site, whether the width of the gate and elevator can transport goods and vehicles, if not, it is necessary to discuss the location.
The enthalpy difference laboratory is a relatively energy-consuming equipment, involving the operation of a series of equipment such as electric heating, compressors, water pumps, fans, etc., so it is necessary to determine whether the distribution capacity of the site can meet the requirements, if it cannot be rectified in advance.
The fourth step is to accurately list all the equipment required by the enthalpy difference room, which ones are available, which ones need to be purchased, whether there is a special brand tendency, and the approximate **, comprehensively estimate a reasonable budget, and an acceptable floating range, and approve the budget.