Central air conditioning

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Electromechanical systems
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Medium Voltage Equipment TMEIC Japan

Central air conditioning – Maintain a stable room air in terms of temperature, humidity, cleanness, and change in air composition, air pressure. Forced air conditioning through refrigeration or heating equipment, moisture spray, desiccant drying, oxygen generation, negative ion, ...

 

Central air conditioning installation process

 

Nowadays the use of air conditioning in the whole house, office, Constructions have become very popular. Most of the buildings in the construction process are installed with air conditioning systems because of its effectiveness and convenience in. With air-conditioning system, After installation is complete users can use it very simply by pressing the button according to each mode. However, improper construction of air conditioning systems often results in unintended damage. The construction of the air conditioning system looks simple, but requires a lot of human and technical factors: Accurate, meticulous, careful, ...

Thus processes central air conditioning installations like?

Tan Hoang Phat Design and Construction Investment Co., Ltd would like to introduce to you how to construct the central air-conditioning system with correct technique:

  

Standard steps before proceeding with installing a central air conditioner

 

Quy trình thi công hệ thống điều hòa trung tâm

 

 

Installation of pipelines central air-conditioning refrigerant (copper pipe)

 

Pipeline specifications: Select according to the requirements and standards of the equipment that the contractor chooses to put to use for the project.

Copper pipes must be insulated both the way and the way back separately, then all are wrapped with nylon moisture. The main pipe and the branch pipe (turn) are welded together with a Refnet joint. During welding, a stream of nitrogen gas goes through the tube to avoid oxidizing the weld. 

After completing the pipe installation, The welds will be tested for deflection by the method of creating nitrogen gas pressure in the pipeline according to the manufacturer's requirements.

Copper pipes running in the ceiling must be supported to the concrete ceiling by pipe shackles and threaded screws M8. avoid direct contact of pipes to false ceilings. Copper pipes running on the roof yard to the outdoor unit must be installed in a zinc coated steel chute with a lid and must be covered with a protective powder coating. The trough supports are made of angle steel V5 and the maximum spacing of the supports is 1m.

 

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Drainage pipe installation central air conditioning condenser

 

When installing condenser water pipes pay attention to the slope, 1/100 slope guarantee for pipe.

All drainage pipes must be carefully insulated.

Never connect the condenser water hose to the sanitary sewer pipe as it may cause bad smell. For the indoor units connected exhaust creates negative pressure, there must be seven countries. 

Installing the water drain hose to the indoor unit may differ by model. therefore always refer to the installation manual before proceeding.

For indoor units with exhaust connections that create negative pressure (machines without condenser water pumps), a water trap is required (see below);

Besides, The water trap must have an open button for cleaning.

On the pipeline add ventilation pipes to easily drain condensate.

 Quy trình thi công hệ thống điều hòa trung tâm

  

Installation of central air conditioning indoor unit

 

The installation of a ceiling mounted unit is much more complicated than a wall mounted unit because the ceiling mounted unit will have a larger size, cumbersome and heavier. Wall mounted machines are mounted directly on a flat wall while ceiling mounted machines are hung in the room space and the machine part is recessed in the ceiling of the room. Therefore, when installing the indoor unit it is required that the mechanic must have high arms and professionalism to ensure the following factors:

 

Quy trình thi công hệ thống điều hòa trung tâm

Install a ceiling mounted indoor unit

- Accurately position the indoor unit in space on the ceiling to get a 4 hole drill mark.

- Drill mounting holes for the mounting brackets to ensure that they are aligned and perpendicular to the floor so that after placing the air conditioner on the machine it will not be pushed, deviation in space.

- Getting the hatch bolt must be extremely sure to avoid the machine falling later.

- Hang up the mounting bracket for the indoor unit to always have a locking nut to prevent self removal.

- Place the preliminary indoor unit on the approximate position.

 

Installation of central air conditioning outdoor unit

 

  • Selecting the location of the outdoor unit should comply with the following conditions:
  • Not directly affected by other heat sources
  • Do not affect people around by noise when operating
  • Do not put in places affected by strong winds
  • The laying base must withstand the weight of the outdoor unit
  • There condensate drain line when operating heating mode
  • Sufficient space for wind cooling and service space when needed.
  • To avoid fire, Avoid placing the outdoor unit in areas where gas leaks can occur
  • Avoid placing in a place where acid solutions and chemicals are frequently used.
  • Do not place in special places with steam, oil and sulfuric gas, when co2 exists.
  • Securely fix the outdoor unit to the ground to avoid machine movement when facing strong winds or earthquakes. The platform use steel beams H.
  • To minimize operating noise and vibration, Anti vibration materials should be used when installing the outdoor unit. The tripod platform dimensions must meet the technical requirements given by the manufacturer.
  •  The machine angle must be fixed firmly, otherwise the steel beams may be deformed by vibrators during operation. Use M10 anchors and bolts.
  • Place anti vibration cushion between the outdoor unit and the platform to minimize the outdoor units vibration during operation.

 

Installation of central air conditioning

 

Each area where the outdoor unit is located will install a separate main electrical panel for all refrigerating equipment in that area for easy repair, maintenance and future maintenance. Each outdoor unit will have a protective aptomat, all indoor units in the same system (same outdoor unit) use only one protective aptomat.

Electrical panel must be made from soft steel sheet with minimum thickness of 0,1mm, Powder Coating, the front side is polished. The outside door should be fastened with chrome screws.

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Electrical panels must have good heat ventilation but still ensure to prevent dust, ngăn ngừa hư hỏng do phóng điện hồ quang bên trong tủ điện. the electrical panels must be rigid and not deformed under the effect of load and maximum current, long time use. The cabinet must be designed to facilitate maintenance in the future. the mounting of components on top of electrical cabinets must ensure aesthetics, neat, symmetrical and convenient for operation.

The lines running in the electrical panel must be arranged in a certain order to easily track out the exposed points and connections, must possess a marking form, wire color, ... The line must be securely fixed in the necessary positions, Shielded with no exposed wires at unauthorized addresses. The quality of the conductor must be of high quality in accordance with the current TCVN as Cadivi, Taya or equivalent. The ends of wires connected to the equipment, electrical cabinets must be pressed the reinforced head.

Measure the insulation of power and control cables. Degree methods of power cables must be at least 5 mega Ohm.

Clear measurement of dynamic cables, control and connect to devices (MCB, outdoor unit, cooler, controller ...), All connection positions are used with a core, cable reinforcement terminals shall be colored in phase order. 

Connect the power cable to the cabinet and check the phase order of the power supply. Powering the central controller, set locations for each wired remote, performs central control of the entire system.

 

 

LG Multi V5 - new generation of central air conditioner

 

LG officially launched the product of Multi V5 central air conditioner in Vietnam, is the product that inherits the preeminent features of Multi V generation air conditioners combined with new technology innovations.

LG ra mắt điều hòa trung tâm Multi V5

The dominance of the Multi V5 central air conditioner is shown through its outstanding features: Multi V5 is the first generation industrial air conditioner in the world to apply dual sensor based control technology: temperature sensor and humidity sensor. Thanks to a combined analysis of both humidity and temperature, the system automatically adjusts the environment, air mode helps save power and enhance the capacity of a maximum.
 
Inverter compression system has a capacity of up to 25 horsepower with inverter compressors with current frequency range from as low as 10Hz to a maximum of 165Hz, making the adjustment of cold capacity more smooth, supply power to the machine to reduce waste from which energy is to save more. 


LG ra mắt điều hòa trung tâm Multi V5  ảnh 1
Multi V5 heat exchanger has a high efficiency that collects the cooling air in 4 directions (4 sided-coil) with an improved propeller system inspired by nature. 
 
The 5th generation of LG Multi V central air conditioners is also equipped with Ocean Black Fin technology, making the air conditioner good and durable by being suitable for high corrosive environments, especially the marine environment with the characteristic humid air, much salt.
 
The heating system of this product is also improved with continuous heating technology (Continuos Heating) increased heating time of up to 17% system every day by applying 3 sensors: humidity sensor, oil level sensor and separate special ice discharge, suitable for cold environments have much snow.

Multi V5 belongs to the line of central air conditioners suitable for large projects, office buildings and luxury apartments. 
 
Mr. Dustin Lee - Air Conditioner Industry Director of LG Vietnam said: "Air conditioning solutions for large buildings play an important role in every construction works. LG Multi V 5 central air conditioning product is developed based on the following criteria: environmentally friendly, save space, energy saving, Optimizing efficiency but still ensures the highest possible cooling or heating. We believe that LG Multi V5 will be the most optimal and complete air conditioning solution for construction projects in Vietnam ”. 
 

Installation of central air conditioning Samsung DVMS

Samsung DVM S - Dieu khien doc lap

Most business environments need a balance between operations and costs. Samsung DVMS air conditioning system helps you create the perfect working environment for everyone while ensuring cost savings. You can independently control and optimize the temperature and airflow in a private space, like meeting room, office rooms, dining rooms and important areas such as the lobby, help optimize operations and reduce waste. Lets take a look at the preeminent features of this product.

  

Independent central air conditioning control in personal area

Businesses can spend a lot of energy and costs if they cannot flexibly control the temperature to suit each area of operation. Samsung Air Conditioning solution gives you total control over the temperature and air flow of common spaces, individually and independently. This is especially good in financial buildings with subdivisions with offices, meeting, lobby and retail area, or in a place where rooms have different usage times and are usually empty. 

  

Central air conditioning control and easy management

 Usually, HVAC systems usually have only one control center, therefore it is not possible to adjust the operation of individual machines. samsung DVMS solution introduces individual controls that allow the ability to personalize controls in certain locations and centralize control in critical areas, such as meeting rooms. And there's an easy to use control center management system that monitors and adjusts temperatures in a wide range of critical areas of the business, for example the lobby area.

 
Samsung DVM S - Bo dieu khien

Central air conditioning V5 Multi - Word of welcome warmth

One of the impressions of visitors when they come to a company or store is when they walk into the lobby, therefore having a perfect reception hall is very important. Samsung DVMS Air Conditioner Solution will cool or heat this area with master control, Therefore, guests always feel comfortable and comfortable. And air release is also minimized. Even when there are so many people in and out, the temperature remains stable.

 

Samsung DVM S - Chao don nong am

Central air conditioning for efficient cooling or heating anywhere

One of the factors of business success is creating a friendly and comfortable environment to meet customers and partners. Samsung Air Conditioning Solution offers a diverse solution from indoors to outdoors, including tubular air conditioners, Standing air conditioner and wall mounted. So you can cool or heat all areas of the business in the most efficient and optimal way.  

 
Samsung DVM S - De do suoi am hieu qua

Central air conditioning increases productivity and operational efficiency of offices for lease

A noisy and humming air conditioning system can be really distracting when you try to focus. Therefore, System solution of Samsung air conditioning worked quietly behind the walls to create an office environment and more efficient facilities for company employees. Stylish wall mounted air conditioning units also save money with energy restored ventilation, and you can control 12 zones using just one signal line. 

Samsung DVM S - Dan lanh dep mat

Central air conditioning makes shopping comfortable and cost effective

If the customer feels comfortable with the retail store, They will stay longer - and spend more money. Samsung Air Conditioning Solutions System allows you to gently stabilize and maintain the optimum temperature even in tight spaces. You can easily operate two zones at the same time from one central air conditioning unit (CAC), or connect 4 machine for larger areas, and this system also helps reduce the cost of purchasing and installing more products.

 

To know more about Samsung DVMS price, Please click on the link 

https://diencongnghiep.top/samsung-air-conditioner/air-conditioner-samsung-vrf-dvms to see details of each product.

Please contact us in case you need to know details on how to install DVMS air conditioner via hotline 0911066518 or 0969002382.

 

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