【 Weak current College 】 household air-conditioning system design and installation the project discussion

With the improvement of living standards, household central air conditioner is increasingly being accepted, Shanghai residential central air conditioning penetration rate of approximately 10%, already possessed a large market share.
The current Shanghai residential central air conditioning dealer have hundreds, most dealers on engineering installation adopts a guerrilla-style subcontracting, black sheep, and complaints. In a certain sense hampers household central air-conditioning industry, worrisome.
Although the Shanghai quality and technical supervision Bureau released a local standard "household air-conditioning system specification, cover the design parameters, design requirements, engineering, installation and acceptance of terms, however, most of the truly normative action are few step by step. Household central air conditioning including design selection, installation, commissioning and acceptance and post-maintenance procedure runs through the entire sales process, the technology content is high. Design and construction of the need to strictly comply with the Statute, the following is my company in refrigerant more online experience in construction, for your reference.
1. design of the programme must complete the low-down from the owners, in particular the equipment usage must be signed by the owners. Each site must be in service management.
2. the design should be a reasonable selection, fully calculated air inlet duct size and sent back to the Tuyere layout direction, wind speed, air to air the appropriate reasonable, conditional to the noise, with a view to achieve the best and comfortable environment.
3. According to the factory provides technical information, in strict accordance with the standard configuration, the tube diameter pipeline best refrigerant flow velocity in order to achieve the best performance.
4. outdoor unit of inadequate ventilation space spacing, resulting in air conditioning and refrigeration heat protection, heating high load low-efficiency is a major cause of complaints. You must strictly follow the factory on the equipment requirements of ventilation space design, and to consider summer sunlight direct sun, decide the cold in winter, the corridor of the cross-wind, etc.
5. copper brazing does not use nitrogen replacement, copper tube oxide layer peeling is caused by a major cause of road congestion, serious damage the compressor, as many units did not do well, you cannot map easy and nitrogen price is not expensive. Pipeline connection must be holding pressure test, 24 hours after the suggested to leak-and pressure standard 60% retention pressures to construction commissioning phase to prevent decoration inadvertently damage to the pipeline. Holding the attention of the 24 hour temperature and humidity effects on pressure deviation.
6. in some family member works, indoor unit is often installed in narrow aisles, refrigerant interface almost no maintenance space, for this type of unit welding treatment is recommended to avoid using nuts expansion mode interface Office of refrigerant leakage problems.
7. condensate pipe processing, is the simplest and most prone to problems of the node. Condensing pipe arrangement must 1m line, rather than a ceiling, beams, etc. as the reference. Pipe arrangement last to level bar test calibration. In order to dispense with possible future leakage problems, we have adopted a gravity drainage test, every indoor units used container to stagnant water dish irrigation and water outlet water in the same container, the water must be equivalent to guarantee basic no water exist within the pipeline. This work takes a more human, but the effect is evident in our construction of Rainbow Garden Show in the Mandarin garden 2000 table indoor unit without a leaking.
8. According to the construction of acceptance, the condensation pipe hanging bracket spacing should be guaranteed within the 50CM. This space can effectively guarantee the pipeline vulnerable decoration construction of transposition, many ignore this.
Engineering design, construction quality is good or bad, to the user, directly affect the future effectiveness; for us, directly impact the company's reputation and after-sales service costs. In the construction of the human and material resources, would surely benefit from the service.