Supply water installation. Compact air handling unit with water heater VKJET-W

Air handling units with water heater are the most energy efficient ventilation equipment. To perform all the functions assigned to them (including supply air heating), a minimum amount of electricity is consumed. A water heater (or heater) uses the heat energy coming from the heating system to heat the supply air. The heater is connected to the heating system through a mixing unit with a two- or three-way valve. The choice of valve is determined by the characteristics of the heating system. The water heater can be connected to both central system heating, and to autonomous (in particular, to gas boiler in your own home or cottage).

Such ventilation devices are especially relevant for buildings with a limited load on the power grid. Installing an installation with a water heater is more complicated and more expensive than an installation with an electric heater, but the money spent quickly pays off due to energy savings during the operation of the equipment.

Additional advantages of operating this particular ventilation equipment are:

• compact dimensions;
• minimum noise level;
• the ability to control the fan speed;
• protection of the heat exchanger from freezing.

Equipment air handling unit with water heater includes:

• supply and exhaust fans;
• recuperator;
• heater;
• mixing unit with pump;
• grids and cleaning filters;
• duct;
• automation systems.

The choice of air handling unit is carried out according to performance (cubic meters of air per hour) and heating power.

The MirCli air conditioning equipment online store offers you a wide selection of supply and exhaust units with a water heater at minimum prices.

The Dimmax brand offers the consumer air-handling units with water heating. The carrier of heat here, as the name implies, is water. The main difference of such ventilation is low power consumption. Compared to analogues that raise the air temperature with electricity, water systems are much more economical. They are productive and have a wide operating temperature range. Another feature is that the flows of air injected into the room and removed from it do not mix. That is, the ingress of part of the polluted air into the inflow of fresh air is excluded.

Design advantages of the solution

Dimmax air handling units with a water heater boast the following advantages:

• compact dimensions;
• excellent aerodynamic performance;
• ease of installation;
• large serviced area;
• excellent compatibility with an extensive air duct network.

All Dimmax equipment works stably and almost silently, and "smart" automatic control does not require any special programming. It is enough for the user to adjust the settings via a mobile device if necessary. In addition, water heaters are absolutely safe, and also allow you to maintain a uniform temperature throughout the entire area of ​​​​the room.

The main task of the air handling unit Climate 067W with water heater is the supply of fresh purified air into the room and the removal of exhaust air.

Wherein key feature This model is that during operation it can both heat and cool the supply air due to the recuperation system with a heat pump.

The unit allows you to maintain the desired temperature in the room all year round.

The composition of the supply and exhaust ventilation unit Climate 067

1. Cassette regenerated filters class EU-4 (Germany)
2. Radial fans (Germany)
3. Rotary compressor with freon circuit (Mitsubishi Electric)
4. Electric heater (standard)
5. Energy efficient plate heat exchangers (copper-aluminum)
6. Automation and control system
7. Heat and noise insulated housing

energy efficiency

Climate 067 are among the most energy efficient. The efficiency of the recovery process in this kind of ventilation installations reaches 70%, which saves money on electricity costs.This is especially true for the Russian climate, where winter period year lasts 7-8 months a year.

According to the experience of our research and calculations, the payback period for air handling units with recuperation, on average, is 1.5-2 years of operation. When compared with equipment that heats the supply air with electricity.

Integrated heat pump air handling unit allows most transfer heat energy from supply air to exhaust air and vice versa. The efficiency in such models reaches the point that for 1 kW of electricity consumed, you get from 3 to 6 kW of thermal energy.

Thus, the cost of electricity for the operation of the air handling unit Climate 067 decrease several times. Price of air handling unit with heat recovery Climate depends on its configuration.

Principle of operation

The supply and exhaust air passes through the unit with the help of fans. The unit has a reversible heat pump with two metal (copper) heat exchangers in each channel. During operation, depending on the mode - heating or cooling, the heat pump works in such a way that it transfers heat between the channels. Principle of operation heat pump like regular air conditioners.

Installation of the air handling unit Climate 067Installation of this series of equipment is quite simple, since the installation is almost completely assembled at the factory. The entire automation system, the reversible heat pump is already in a ready state. The entire installation process consists in installing the air handling unit on a support or hanging it from the ceiling, connecting the air ducts, connecting the external power supply and assembling the water piping assembly (for models with a water heater).

System management

The unit is equipped with a control panel, on which you can set and change any parameters of its operation. The remote control is mounted in any convenient place on the wall.

The automation system of Climate 067 models is very flexible:

• Full automatic diagnostics;
• Recording mode on the controller of all changes/errors/accidents;
• Possibility of connection to the dispatching system, via local network"ethernet";
• Automatic switching of the modes "heating/cooling" on temperature sensors and settings;
• Service mode, polling sensors

The main functions of the control panel:

• Setting the temperature of the supply air to the room, taking into account the mode of heating/cooling the outdoor air;
• Clean ventilation mode (outside air supply without changing its temperature characteristics);
• Air flow regulation (5 speeds);
• Setting the on / off timer for the unit and its operation schedule by day of the week.

What is displayed on the remote control:

• Set temperature;
• Actual room temperature;
• Outdoor air temperature;
• Installation operating mode;
• Compressor operation.

Aerodynamic characteristics

Our specialists will be happy to advise you and select the installation of the required power.

Specifications

(1) - at t nar. 28°C 70% r.h. or 23.7°C wt. and t int. 22°C

(2) - at t nar. 7°C DB or 6°C wet temp. and 20°C and 40% r.h. indoor air

(3) - at t nar. 35°C 42% RH or 24°C wt. and t int. 27°C

(4) - COP (Coefficient of Performance - thermal coefficient) is equal to the ratio of heating power to power consumption.

In the online store RoomKlimat you can buy high-quality ventilation and climate equipment wholesale and retail at the best prices in Moscow. We offer Breezart compact air handling units with water heater (automatic), which are characterized by high performance and long service life. Equipment can be ordered on our website with delivery to any region of Russia.

Basic Description

Breezart air handling units are designed for filtering, heating and supplying fresh air in small spaces: in residential buildings, cafes and restaurants, offices, warehouses. This equipment allows you to provide efficient ventilation and heating of the premises with minimal energy consumption.

Models of air handling units of this series are produced in a robust housing with a protective anti-corrosion coating. polymer coated, with an inner layer of heat and sound insulation.

The equipment is completed with fans, a water heater, air filters, a mixing unit, as well as an automation console. The water heater allows you to heat the air temperature to the specified parameters.

All models of air handling units of this series are equipped with a remote control panel with a backlit graphic display. The embedded system is equipped with all the necessary sensors, which eliminates the need for additional equipment automation.

All unit models are equipped with high quality inverter motor fans with wide speed control range, low noise level and high efficiency.

To solve air exchange issues in private houses and industrial buildings, along with fans, devices are used that heat or cool the air that comes from the street. This helps to improve the characteristics of the microclimate inside the room, increase the level of comfort.

One of the economical and affordable devices is a water heater for supply ventilation more familiar to residents northern regions. From our material you will learn about the principles of work and design features this type of equipment. We will also talk in detail about several popular models of air heaters for ventilation.

We note right away that the devices used to heat air in ventilation and air heating systems can work not only on water.

There are four types of heaters that differ in the way the coolant is heated:

• fire;
• water;
• steam;
• electrical.

Water are the most popular due to the budget cost and minimal cost for service. The only difficulty concerns the installation, in which it is required to bring water supply pipes.

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For this reason, it is impossible to install the device in urban apartments, but in large buildings (for example, in warehouses, garages, establishments Catering) a system with the correct piping of the heater is quite effective.

Room air heating unit large area, consisting of a water heater and a radial fan. Serves for creation of thermal veils and ventilation of air in office buildings, shops, workshops

A distinctive feature of steam appliances is the high speed of reaching the required temperature. They are relevant for industrial enterprises, where it is easy to ensure the installation and maintenance of steam pipelines, their use is impractical for private housing.

If needed quick installation, not complicated by the supply of communications, use models of electric heaters for. A protected power point is sufficient for their operation. There is no coolant as such at all,. Like any electrical appliances, they are disadvantageous with material point vision.

Water heating equipment used in ventilation systems is the most economical and productive option that can quickly heat a large space at minimal cost.

Principle of operation and design features

Universal water-powered devices are installed in places with a well-established heat supply system. A simple but quite effective design solution allows you to heat the air in the range from + 70 °C to + 100 °C and is relevant for hangars, gyms, supermarkets, greenhouses, warehouses, large pavilions - that is, large rooms that require additional heating.

An example of using a VOLCANO air heater in a greenhouse. Heating is provided by distribution warm air(water temperature - +90º C) with a fan and adjustable shutters

If you have ever used a household thermal heater, you will easily understand the principle of operation of a water device. It also heats the air, but the role electric spiral, enclosed in a small case, plays a set metal pipes ok, through which the heated coolant circulates.

The heating process is as follows:

• hot water heated to desired temperature(on average from + 80 ° С to + 180 ° С), from the heating pipes it enters the heat exchanger, consisting of small aluminum, steel, bimetallic or copper tubes;
• tubes heat the air passing through the device;
• built-in fan distributes heated air throughout the room and stimulates its movement in reverse direction- to the device.

It is not necessary to specially heat up the water, since it is part of the heating system, so it happens significant savings funds.

The designations for the four presented piping schemes are common: 1 - ball valve; 2 - filter; 3 - three-way valve; 4 – circulation pump; 5 - check valve; 6 - thermomanometer

In versions 1 and 3, the nodes are connected in a rigid way, in versions 2 and 4 - using flexible metal hoses.

Adjustment of the heating process

To control the thermal power of air heaters, mixing units with are used. Thanks to the mixing principle, you can significantly reduce the cost of heating the room.

The three-way valve allows you to reduce the temperature of the coolant by mixing in hot water, entering the heater, a certain amount of cooled liquid released from the heat exchanger.

Installation increases the efficiency of the system. It is preferable to mount it at the outlet, as chilled water (or alternatively, glycol solution) extends the life of the device.

There are several important conditions operation of mixing equipment:

• maximum proximity to the heater;
• availability for maintenance;
• filtered, without chemical inclusions coolant;
• the air temperature in the room is above 0 °C.

The technical characteristics of the devices may vary, but on average the recommended coolant temperature is from + 2 °С to + 150 °С. For regular monitoring of performance, it is recommended to mount two thermomanometers near the heat exchanger.

A sample of a mixing unit for a water heater. In fact, this is one of the strapping options with the ability to adjust the temperature and control its change.

Adjustment three-way valve carried out with the help of a drive and a controller. Measuring instruments allow you to set the required temperature and change the pressure as accurately as possible.

Features of installation and connection

To install heaters in production shops or at other industrial facilities invite a team of specialists. Household devices can be connected independently if you clearly follow the instructions and have the skills to work with electrical and heating appliances.

For those who have equipped the house with their own hands, the installation of an air heating unit will seem like child's play.

household models differ in small volumes and relatively light weight, but before hanging them on a wall (or ceiling), you should check the strength of the base. Concrete and brick walls, moderately suitable - wooden, the weakest - drywall.

First of all, a metal frame is fixed - a bracket with holes for fixing the case. For some manufacturers, the frame is called the mounting console.

Place of installation of a duct heater for supply ventilation in the air exchange system. If it is possible for the temperature to drop below normal, a frost protection thermostat must be installed.

Suspend the body of the air heater and alternately connect pipes with a set of shut-off valves or a mixing unit, which can be partially installed even before the installation of the device.

Insertion into the heating system is carried out in two ways: by using connecting fittings (couplings with gaskets) or by welding metal pipes. The second method is considered the most reliable, but it is impossible with flexible connection.

One of the weakest areas is the heat exchanger pipes, which need to be ensured stability. If there is a risk of changing the position of the device, it is better to replace rigid tubes with flexible elements. In any case, stress on the nozzles should be excluded. To ensure the isolation of the system and prevent leaks, the joints are treated with a sealant.

If the water heater is installed on a permanent basis, it is connected with rigid pipes. If transfer or displacement is planned, it is better to use a flexible eyeliner

Before the testing process, it is necessary to remove air from the channels, check the operation of the valves and louvers.

Rules of operation and the possibility of repair

In order for the equipment to work flawlessly and fully perform its functions, the following rules should be observed:

• monitor the composition of the air in the room (compliance requirements can be found in GOST 12.1.005-88);
• to carry out installation strictly according to the instructions and based on the recommendations of the manufacturer;
• do not raise the coolant temperature above + 190 °С;
• comply with pressure standards - about 1.2 MPa;
• after cooling the room, heat up smoothly, by about 30 ° C per hour;
• make sure that the air temperature does not fall below 0 ° C, otherwise the heat exchanger tubes will burst.

If the heater is installed in a room with high humidity, the degree of dust and moisture protection should be IP66 or higher.

We do not recommend making repairs on your own, since one breakdown most often leads to the next, but in the end you just have to replace some parts. Better to contact service center and entrust the work to professionals. In addition, you should not ignore before buying, otherwise there is a chance to waste money.

Brief overview of modern models

To get an idea of ​​the brands and models of water heaters, consider several devices from different manufacturers.

No. 1 - heaters KSK

Heaters KSK-3, produced at the enterprise CJSC T.S.T.

Model range of KSK water heaters domestic production includes 2/3/4 row devices differing in performance and dimensions

Specifications:

• coolant temperature at the inlet (outlet) - +150 °С (+70 °С);
• air temperature at the inlet - from -20 °С;
• working pressure - 1.2 MPa;
• maximum temperature - +190 ° С;
• service life - 11 years;
• working resource - 13 200 hours.

The outer parts are made of carbon steel, heating elements- from aluminium.

No. 2 - Volcano fan heaters

Water fan heater Volcano mini is a compact device of the Polish brand Volcano, characterized by practicality and ergonomic design. Adjustment of the direction of the air flow is carried out using controlled shutters.

One Volcano mini fan heater is capable of producing as much heat as a dozen conventional ones. bimetallic radiators made up of ten sections

Specifications:

• power within the limits - 3-20 kW;
• maximum productivity - 2000 m³ / h;
• type of heat exchanger - two-row;
• protection class - IP 44;
• maximum coolant temperature - 120 °С;
• maximum working pressure - 1.6 MPa;
• internal volume of the heat exchanger - 1.12 l;
• guide blinds.

Volcano water fan heaters are designed to heat the air in domestic and industrial premises with water coolant.

No. 3 - Galletti AREO heaters

Italian-made Galletti AREO heater.

Water heaters of the Galletti AREO brand are able to work both for heating the processed premises and for cooling the space in hot weather

Models are equipped with a fan, a copper-aluminum heat exchanger and a drainage tray.

Specifications:

• power in heating mode - from 8 kW to 130 kW;
• power in cooling mode - from 3 kW to 40 kW;
• water temperature – + 7°C +95°C;
• air temperature – from 10°C to + 40°C;
• operating pressure - 10 bar;
• number of fan speeds - 2/3;
• electrical safety class - IP 55;
• motor protection.

In addition to the devices of the listed brands, on the market of air heaters and water heaters, you can find models of the following brands: Teplomash, 2VV, Fraccaro, Yahtec, Tecnoclima, Kroll, Pakole, Innovent, Remko, Zilon.

Conclusions and useful video on the topic

Overview of the Volkano brand water heater:

Details about technical specifications Ballu BHP-W-60 models:

Simple design and affordable self-fulfillment installation - the reasons why water-type heaters are chosen. Right choice the device and competent installation of the strapping will increase the efficiency of ventilation and improve the heating system of industrial and residential premises.

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