Weak current College】 【HVAC engineering requires a good grasp of the work of the debugging and monitoring.

In recent years, domestic and foreign new, rebuilding of large and medium-sized building more and more attention to setting of HVAC installations. In General, HVAC investment accounted for the entire building investment of 10% to 20% of energy consumption in occupies the entire building energy consumption by 60%. Such a large investment, nature should be its corresponding rewards. Whereas in order to achieve the desired objectives, must hold the design, construction and operation of management implementation process of each link.

Supervising engineer owner as soon as possible after the intention of building owners to understand, in detail to understand the purpose of each room and use characteristics. In helping owners prepare design documents, as far as possible on each room's temperature and humidity, ventilation rate, wind, dust, noise, and other indicators to materialize, avoid large, of, causing a small number of rooms does not meet the requirements.

In the system design time, you must make 2 ~ 3 programmes of technical and economical comparison, implementation plan optimization. The entire project of investment and operating cost of control is critical, but often Design Institute of Economics of the operation to consider less.

You should carefully review the equipment selection and matching of rationality, reliability, and affordability. Before the equipment selection should fully research, particular attention has been put into use of a visit to the user.

For pipe insulation measures aim to achieve in indoor and outdoor, exposure and covert discrimination, prevent danger of General Zia, achieve both economic and practical and aesthetic durability.

Should be strictly examined and civil engineering, water, electricity, fire control, automation, and other related professional coordination, avoiding mistakes, leaks, touch, to ensure the operability of the drawings. This is often caused by conflicts, increasing investment in construction.

Review of construction units submit construction organization plan, and timely submission of written comments, this is an important basis for supervision. And from here you can learn more about the construction unit of management level and technical level, in order to improve the supervision rules, the strengthening of the control.

The equipment arrived before access to the device's installation instruction manual to determine the installation space, equipment, infrastructure, water and electricity, can meet the requirements.

For chilled water system installed, except under the pressure of work, in accordance with the established its heating and sanitary engineering construction and acceptance or the industrial pipe construction and acceptance of, the attention of appropriate increase auto exhaust device to exclude the air in the system. Pipe insulation with extreme caution geqi processing and finished products protected from run it later in dripping phenomenon.

Condensate water systems must be done at the time of acceptance of water to ensure the smooth flow.

In the wind pipe construction, attention to fire damper installation. When the fire damper is not just a firewall, be sure to follow standard picture requires making some thickening of the air duct, and covered with thick cement mortar 3cm.

To organize and coordinate work. Main completion, there will be water, electricity, fire, air conditioning, communication, monitoring, indoor and outdoor decoration, and other types of work and many subcontractors cross-job, and often the professional construction plans have failed to put all the facilities of relationships clearly, this would need to meet their respective functions and does not affect the appearance of the Tuyere, lights, sprinkler, probes and other locations appropriate adjustments, adjustments should follow water let the wind pipe and tubular let big pipe, the pressure so that the principle of non-pressure, and strive to achieve reasonable layout and neat appearance. In addition to weekly regular coordination meetings, should strengthen coordination efforts to prevent mutual interference over trifles, InCharge better adjust the workload of the visa.

In the installation project deliverables before use, shall recommend owners to arrange operation and maintenance managers into familiar and technical training in order to smoothly system debugging, acceptance and operation management.

At present most of the owners are themselves with suppliers and contractors to sign contracts, for various reasons, the contract often exist some responsibility for ambiguities, in most cases to have some trouble and the owners of the economic losses.

Supervision units involved in the contract management, it is recommended that apart from the ordinary conventional terms, it should be noted that for equipment purchase contract quality control, cooling system pressure, temperature, flow, and other technical parameters, smoke control system positive pressure ventilation chamber pressure determination before, and so on.

Before debugging, supervise the construction units on the accuracy of measuring instruments are checked to determine their precise level than the parameter being measured.

System debugging and qualified standard should conform to the specifications and related documents. If the outlet air flow rate measurement there are many ways, if the location in the outside air, variety, shape, and determining data requirements is not very precise, Tuyere method. If the outlet air flow needs high accuracy of measurement data, you can use auxiliary wind tube method. As another example, smoke control system in recent years has become the air conditioning ventilation system test, the measurement of regional General in the elevator room, safe stairs before and the small rooms, ventilation and air-conditioning engineering construction and acceptance of, the use of smoke simulation method, and should be rectified after the debugging, and calls its measurement parameters must meet safety requirements. This phase of the data direct response system performance is good or bad, for debugging failures, to improve the timeliness and records, on the design parameters cannot be reached, should be adjusted so that the various parameters meet the design requirements.