Electrical diagram of fankial connection. Connecting Fan Coils

Initially, it should be noted that without the presence of project documentation is not allowed to install any funky. Any replacement of one species on another type or firm manufacturer of Fan Coil must be agreed with designers, otherwise it can lead to the failure of Chiller himself.

Connecting funky in several stages

First stage- This is the installation of the fankyl itself to the place allotted in the project, followed by connecting it to the system of pipelines of supplying water (or any other coolant). Again, you should take all the characteristics laid in the project.

• You can not change or change the diameters of pipelines, the material from which the pipes should be made, which will definitely affect the flow rate of the coolant through the fan coil and in the future on the performance of the chiller itself.
• It is impossible to install the installation not provided by the project, valves, adapters or other hydraulic circuit elements, as well as not to install the same elements.
• It must be remembered that when the fan coil on its heat exchanger is formed, condensate is formed and this condensate should be displayed in the sewage system.
• To eliminate the stagnation of condensate in drainage pipelines during its laying, it is necessary to withstand the slope of 1 degree in its lattice throughout the drainage pipeline.
• To completely eliminate failures and the formation of congestion zones.
• In the sewage system, there are no pleasant smells and the ingress of these odors through the drainage pipeline into fan coil, and then it is also necessary to exclude, providing a water shutter or a plasticized device on a drainage pipeline.

Second phase. Since the channel fan coils are different by the type of location, the most difficult at this stage is the connection of fan coils to air ducts.

• Not all channel funkowns can be connected to air ducts, so this stage concerns those who have such a connection. If channel Fan Coil Requires the connection of air ducts, then at this stage there are such a connection for which the air is added to the fan coil itself, and according to which the prepared air enters the room after the fan coil. In addition, it is necessary to pay attention to the air duct that provides the influx of fresh air if it is laid in the project.
• The material and section of the air ducts can be different and therefore these parameters of the air ducts follow according to what is laid in the project documentation.
• Attention should be paid to the length of the air ducts in which the air should come from the room and to the room. This length is directly related to such technical characteristic Fan coil as static pressure. An increase in the length of the air ducts can lead to a decrease in air flow.

Third stage. Fan coil is connected to the power supply network.

• Before connecting, it would be nice to pay a little time to verify the compliance of the fankyl voltage and the network to which you should connect. The automatic, through which the fan coil should be connected or several fans should be slightly larger (by about 15-20%) for current strength (amperes) than all the funkowns connected to it. You can use the formula of grade 6 to calculate the power of the automaton. P \u003d u * i Where i \u003d p / u. Where p is the electrical power of the connected fan coils; U - voltage in the network (usually 220 V); I - current (amps), which must match the machine through which is connected.
• We must not forget that it is necessary to connect all three wires especially the third - grounding.

This type of work should not trust random people who are not certified to keep such work, thereby remember that "the miser pays twice."

Smirnov Pavel Petrovich

An experienced specialist in ventilation and air conditioning systems. Works in this area for more than 15 years.

Posted articles

Fan coil is an element of a climate system for temperature control in separate rooms. It is used to cool and air heating. Before designing and installation of this system, the consumer must examine the fan coil what is fan coil, its main characteristics and types.

Fan coil: what it is, the principle of work

This device is included in unified system Air temperature control - Chiller-Funkyl. Instead of freon, water or antifreeze is used. Depending on the task, the chiller cools or heats the working fluid. It enters the pipelines to fan coils in separate rooms. With the help of a fan and heat exchanger, a change in the room temperature in the room.

Stages of the device.

1. Changing the temperature in Chiller.
2. Arrival of working fluid on pipelines to fan coils.
3. Transmission of cold (heat) air through the heat exchanger. Fan installed for circulation.
4. Returning fluid to chiller to repeated temperature change.

Lack of freon and zonal air conditioning - this is the differeble of Fan coil from. Distilled water or antifreeze can be used as a working fluid. This makes it possible to establish ordinary water pipes instead of copper pipes.

Important. You can statenly connect Fancoilles to Chiller. The increase in air conditioning points in the rooms is limited only by the power of the outdoor unit.

Classification

There are two main types of fan coils - two-pipe and with four highways. The first are connected to one source of the working fluid, the second can simultaneously use two - chiller and a water heating device.

In the latter case, it is possible to quickly switch the module from the cooling mode to heating and back. Two-pipe models have a time-consuming work, you need to physically switting highways between the sources of fluid processing.

Classification in design:

According to the installation method - floor, ceiling or wall mounted.

• Cassette. Mounted B. suspended ceiling, do not have an external case.
• Channel. Install in channels supply ventilation. Models are distinguished by the number of air flows - from 1 to 4.
• Air flow - low, medium or high-pressure. The first create an air pressure to 45 Pa, the second - up to 100 pa. High-pressure can form air flow with a force of 250 Pa.

For a smooth change in fluid temperature, it is completed with a three-way valve. Types of fans used are centrifugal or diametrical. The heat exchanger is serpent, consists of a copper pipe. To increase the area, aluminum ribs are installed on it.

Council. Some models have dust filters. They purify air from extraneous impurities, protect the elements of the device from contaminants. This is important for premises with special requirements for the microclimate.

Fan Coil connection scheme

Having learned what fan coil is and how it works, you need to study the installation scheme. It depends on the selected model and the climatic control system. The location of the module must ensure efficient cooling (heating) indoor air. There are no obstacles on the path of air flows - furniture, interior items. For maintenance and repair must be free access.

Mounting is made according to the general scheme.

1. Installing the housing in the selected location.
2. Connecting the pipeline.
3. Installation of strapping - valves, cranes, temperature sensors.
4. Condensate removal. This uses a pump and a separate pipeline. Characteristics of the pump - performance and maximum lifting height.
5. Connecting to the power grid.
6. Pressing and tightness check.

After that, the system is fill in the working fluid. In the instructions for a specific model described how to connect Fan coil to Chiller. Dimensions, power requirements, temperature regime are taken into account.

Important. To minimize the temperature of the working fluid, the pipe must be isolate. Materials of thermal insulation are polyurethane foam foamed polyethylene, mineral wool.

Service and repair

Fan Coils operate autonomously, but for this you need to diagnose and maintenance. Periodicity depends on the degree of load, it is usually 6-8 months. Part of the work is made independently - cleaning or replacing the filter, checking the performance of valves, shut-off valves.

Types of professional service and repair:

• diagnostics of filters, air and water;
• balancing of water circuit;
• elimination of flows of water;
• drainage check - pump diagnostics, cleaning pipelines.

During operation, the climate block can issue noise. The reason is the fan operation, pipe vibration. To eliminate the last lack of highways are fixed using clips or special clamps every 0.5-1 m.

Device chiller-fan coil - often part of the system central air conditioning Office buildings, shopping centers, public areas large passability, other major objects. Installation of fancoils allows to ensure cooling / heating of the air of a large space. Design, installation of chillers and fan coils, the estimated estimate is carried out by experts, depend on the modification of the device, features of operation.

Chillers and Fan Coils for central air conditioning systems

Chiller-Fan Coil - a variety of air conditioning devices, a distinctive feature which is circulation between water blocks (ethylene glycol / propylene glycol) as refrigerant.

Chiller - Refrigerated machine that reduces the temperature of the fluid inside the coolant. It is installed on the roof, attic space, technical room. When installing the machine on the roof, it is necessary to drain the water from the system before the onset of the cold season.

Fan Coil - Internal device unit equipped with a fan (FAN), heat exchanger (COIL). Externally, very similar to the split-system unit.

The equipment can operate in three modes: cooling, heating, cooling-heating (4-pipe blocking).

Modifications of internal blocks:

• wall mounted
• cassette
• channel
• outdoor ceiling.

Briefly present installation schemes.

Installation

Installation methods:

• hidden - installation of dexcarpus blocks. Are placed above the suspended ceiling, in the intermedial space, utility rooms.
• standard - installation of equipment at the length of the track no more than 5 m.
• non-standard - the length of the tracks is more than 5 m, high-rise installation with a challenge of the service of industrial mountaineering.

Installation of wall fankeal

Wall-mounted options look like ordinary household air conditioning. Mounted on the wall, the installation is simple, inexpensive at cost. It is best suited for premises with low ceilings, the inability to construct the suspended ceiling. The most optimal option for small office space.

Device and installation:

• determine the installation location;
• place mounts for mounting panel;
• fasten the block anchor bolts;
• align the position strictly horizontally in all directions;
• distribution of pipelines;
• connecting the drainage system;
• placement of the drainage pipeline;
• connecting electrical conductors
• filling the system with water / ethylene glycol, trial start, testing.

Installation of cassette fancois

The variety of ceiling devices is placed inside the ceiling space between Armstrong plates. Standard dimensions: 600x600 mm, 900x600 mm, 1200x600 mm. Only the front side of the air intake lattice is visible.

Installation methods:

• hidden installation inside the suspension design. Standard option, often used for office space, business centers;
• open accommodation on ceiling overlap with anchor bolts. It is used: large hypermarkets, shopping centers.

Placement scheme:

• select installation location;
• place mounts under the ceiling;
• fasten with anchor bolts;
• connect to the chiller, the central heating system (if heating is planned, the binding of 4-pipe);
• paving the pipeline route, thermal insulation to protect against condensate;
• equipment drainage system POMPEY;
• collecting a mixing unit, 2 or 3-chassing valve;
• tightness check;
• commissioning works.

Installation of channel fancois

A distinctive feature is the placement of equipment under the ceiling, an additional organization of air duct channels for supplying cooled / heated air through air intake grilles, diffusers. Characteristic for office, industrial, shopping areas, country houses.

It is possible to connect K. ventilation system. Purified cool air will be supplied with a substitution of fresh street.

An open method of accommodation is characteristic of large shopping centers. But most often the closed installation of horizontal or vertical design is used.

With horizontal installation, all communications remain under ceiling overlap, covered with mounted ceiling construction. When the height of the room does not allow, it is possible to vertical execution - communications are arranged inside wall overlaps (using vertical type fan coils).

Organization scheme:

• mark the place of installation under the ceiling / inside the wall overlap;
• dilute the system of air ducts, lattices, diffusers;
• protect the pipeline from condensate with thermal insulation;
• equipment of drainage pump, minting the condensate disorder;
• collecting a mixing node;
• running fluid, tightness test.

Installation of fan coil with strapping

In addition to cooling this system Air conditioning is used for heating. The internal unit is connected to the chiller and the central heating system. For this, the second heat exchange path is used.

Depending on this, two types of strapping are distinguished:

1. Two-pipe. Work only on heating (chiller is equipped with heat pump) or cooling. The strapping is organized by a two-pipe outline with one heat exchanger. In this case, the device is equipped with a 2-chassing valve operating on the discovery / closing of the supply of fluid inside the heat exchanger.
2. Four-pipe. Connecting a cooling / heating device at the same time. One circuit is designed to connect to refrigerator. The second two-pipe contour is to connect to central heating. Thus, the device simultaneously cools and heats the room. Actual for buildings where a separate setting is required. temperature mode In different rooms.

Here is a 3-chassing valve that supplies fluid bypassing inner block When the heating is connected, which allows you to maintain the autonomy of the contours with its temperature characteristic.

The use of this device in the composition of the equipment of central air conditioning makes it possible to bring the quality of the cooled air to the necessary microclimatic indicators. The possibility of connecting to central heating during the cold season considerably saves energy costs. Especially relevant for large office buildings, business centers, large shopping areas. Also possible installation for country housing.

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Project of the air conditioning system. Main aspects

Today in houses instead of air conditioning systems, it is often resorted to the installation of fan coils - devices, which cooled and heat the air indoor. The heat exchanger can be installed in different rooms Buildings and install for each of them an individual temperature mode.

Principle of operation

The principle of fan coil is pretty simple. The air is driven by a fan through the heat exchanger and is being cooled or heated depending on the selected mode.

The air flow is not created from the air volume located in the room, but from the outer air. Fresh air Served by a special aggregate - chiller. This device is paramount when creating a system of air conditioning and heating of a building from a chiller fan coil system.

Chiller is connected by S. inlet installationwhich makes a fence of air from the street.

Classification

Devices can be divided into four groups depending on the design features:

• cassette;
• horizontal;
• console;
• consoles in the case.

When a specific device is selected, it is important to pay attention to two parameters: overall air performance and cold air performance.

Water as a carrier

Systems of heat exchangers that use water as a carrier can be of two types: two-pipe and four-pipe.

The two-pipe is most common in the market and its installation does not represent difficulties. It is used to cool the air indoors and only, and therefore the cost of mounting the fan coil of the pipe-tube type is low. It is possible to switch to heating mode in winter, however, for this you have to turn off the pipes from the chiller and connect them to heating system. It occurs with the valve, which is adjusted manually.

Four-pipe has two heat exchangers: one is connected to the chiller, the second to the heating system. This scheme is more complex in the installation and principle of work, and, accordingly, it is more expensive. Allows you to cool, so and heat the air indoors by switching the mode on the control panel.

What consist of?

Each type of device has its own type of construction, but there are general details in all:

• filtering element. Protects the fankeal system from foreign particles in it;
• electric heating element;
• heat exchanger. Cool and heats the air indoors.
• fan. Provides a forced stream of air, which passes through the heat exchanger;
• control Panel.

Installation of chillers and fan coils of any of the above types can be both wall mounted, outdoor and built into the ventilation of the building and installed in the attachment of the ceiling.

Benefits

You can highlight a few advantages of fankial installation with a chiller.

1. Saving electricity.
2. The ability to connect to one chiller unlimited number of fan coils. At the same time, the distance from the device to the very far funky should not be more than 600 m.
3. High environmental safety. Equipment is much more environmentally friendly air conditioners.
4. Creating a comfortable microclimate indoor.
5. Ensuring full cooling and heating is only 5 minutes after launch.
6. Saving funds necessary for the organization of pipe trails, if water is used as a carrier. However, such a system has one disadvantage - the absence of the ventilation function. Therefore, when it is installed, it is necessary to parallel to equip the system forced circulation of air masses indoors.

Installation

Work on the installation of chillers and fan coils consists of several main stages:

1. Initially mounted device indoor.
2. Then the strapping assembly is going.
3. Mounting pipelines and thermal insulation to them.
4. Air ducts are paved and their noise insulation is organized.
5. A drainage system is created.
6. The equipment is connected to the power grid.
7. Check tightness.
8. Run the system.

Installation by type of device

Floor

The easiest installation process is the installation of outdoor fankyl, not having a channel for condensate. They do not spoil the interior and can be installed independently. The typical design of such equipment consists of two pipes, which are followed by a mixer and working fluid.

Cassette, wall and sub flow

Installation cassette Fan Coil and the rest of two is a bit more complicated, because They can be both two-pipe and four-pipe. At the same time electrical system May differ significantly from floor systems.

Therefore, the installation of wall-mounted fan coil, follow-up and cassette, is best to entrust specialists.

With the help of specialists

Connecting Fan Coil - a complex process requiring professional approachTherefore, it is best to contact the specialists. Only they can competently do work on:

• installation of the unit in the most efficient place;
• assembling nodes of the strapping by installing the necessary cranes, instruments for temperature and pressure control devices, valves;
• laying and thermal insulation of pipes;
• installation of condensate removal;
• connecting devices to the electrical network;
• crimping system;
• verification of tightness;
• water supply.

They will have all the calculations before the start of work and will take into account the features of the room and the load of each fan coil. Experts will create a safe and reliable system that will last the user for a long time.

What should be remembered when contacting specialists

To competently select a company that carries out installation services, you should pay attention to the following criteria: