One of the main leaders in the production of high-end HVAC equipment is the Japanese company FUJITSU. It has found worldwide recognition due to the reliability, availability of manufactured equipment and the constant movement in step with innovative technologies that make human life easier and more comfortable.
The catalog of climate control systems impresses with its variety of series and models among all types of equipment. In addition, any FUJITSU GENERAL air conditioner has excellent performance and thoughtful design. To verify the veracity of these statements, you must carefully read the company's products.
Types and series of air conditioners FUJITSU
Like all manufacturers, FUJITSU has a huge number of series and models of standard split systems and inverter splits with various types of indoor units, multi- and multi-zone units. All of them have several common positive characteristics, and these are:
- increased energy efficiency;
- high-quality filtration;
- smart protection and automation system;
- large warranty period.
Each production line has features that complement this list.
Wall split systems
The best selling are FUJITSU GENERAL household wall conditioners. They are installed in apartments, offices and premises with a small or medium area, where standard features (cooling, heating) are required, but there are no strict regulations on the accuracy of the set parameters and maintaining a certain level of humidity.
Serial diversity is great. An incomplete list of the presented climate equipment of this type includes:
- Classic On / Off;
- Airflow Nordic
- Slide Inverter
- Nocria Inverter.
Classic On / Off is the standard of a reversible air conditioner, capable of not only cooling, but also warming in the off-season. The main advantage here is the λ-shaped heat exchanger. It makes it possible to reduce the dimensions of the device, but increase the power indicators at the same time. The series is characterized by a large number of automatic modes: swinging the blinds, adjusting the air flow, restarting, self-diagnosis and so on.
Devices of this series can be supplemented with a winter kit, which expands the temperature limits when the air conditioner works in cold weather.
V-pam technology has created a compressor with increased performance. It also reduces operational noise and the cost of electricity.
I-pam technology is a new method of inverter control of the compressor, which helps to reach the set temperatures 3 times faster, working first at the maximum possible power.
FUJITSU GENERAL in the Airflow Nordic range of air conditioners also used an increased heat exchanger area, so the air processing speed was significantly increased. Smooth air flow distribution thanks to improved air distribution circuits, minimum noise level of up to 21 dB, equipping with apple-catechin filter and ion deodorization filter are special advantages of this line. It is impossible not to note the ability of these air conditioners to work for cooling at an external temperature of -25 °.
It is worth saying that the apple-catechin filter, thanks to the polyphenol in its composition, perfectly kills not only bacteria and viruses, but also mold.
The Slide series is an increased variety of sizes, a low-noise operation mode, an indication of filter contamination and an increased power mode.
The Nocria series is ultraviolet radiation for air disinfection, automatic cleaning of the filtration system, high performance indicators, three-way flow distribution, drainage of the heat exchanger and protection against inappropriate temperatures.
Reviews about inverter air conditioners FUJITSU GENERAL
FUJITSU GENERAL has identified the focus among split systems on inverter models due to their minimal power consumption. It is inverter air conditioners that collect the maximum number of positive reviews.
In general terms, people characterize this type of technology as:
- stylish in appearance;
- economical in terms of budget;
- quiet and fast in achieving the required air parameters;
- not thinking for long - reacts to commands with remote control instantly;
- not creating temperature zones with different indicators;
- durable (for many, the FUJITSU inverter has been working for 8-10 years without problems).
Among the reviews about air conditioners Fujitsu there is another important point - the price. It suits the standard consumer and is consistent with the quality of the climate control device.
Channel split systems
A fairly wide selection of models is presented among the FUJITSU GENERAL ducted air conditioners, mounted in a subceiling space in a false ceiling or suspended structure. Their installation is required when:
- complex room configurations;
- the need to serve several separate areas;
- needs for work in low-temperature conditions outside the building;
- the need to maintain the interior.
There are devices with different types of air supply pressure: low pressure, medium pressure, high pressure. But all FUJITSU duct air conditioners have the following advantages:
- advanced management features (weekly timer, hot start, button lock);
- the ability to add fresh air up to 30% of the total volume of air masses;
- low static pressure mode;
- low noise effect;
- achievement of necessary indicators of humidity;
- ease of installation.
Medium-pressure ones have two options for connecting the condensate drain. Of course, FUJITSU GENERAL used two of the latest developments in duct air conditioners - V-pam and I-pam technologies. The power of this cooling system varies in the range of 12-25 kW and depends on the model. This value is enough for efficient processing of a 4-5-room apartment or an average office.
Channel-type air conditioners can be included in a multi-split system from one external and several indoor units.
Cassette, floor, floor and ceiling FUJITSU conditioners
| Type of air conditioner | Features |
| Cassette |
|
| Floor |
|
| Floor and ceiling (subceiling) |
|
Multi split systems
Inverter multi-splits of this brand are systems with the ability to connect from 2 to 8 indoor units in an outdoor unit, which can vary in type, power and other indicators, and with a total cooling area of up to 200 m². All of them have high performance, variability of operating temperatures, a long track, ease of installation and convenient free layout. Such an installation has both automatic self-diagnostics, and maintaining a minimum t ° in the room in the absence of people, and a low-noise mode, and a timer, and many functions to create the perfect microclimate.
Among the multi-split systems FUJITSU GENERAL stands out a number of synchronous devices that can not be assembled in a free version. All indoor units are selected of the same type and one power. The outdoor unit can be combined with 2-3 indoor appliances.
Such semi-industrial systems are distinguished by synchronous control, an extended range of working t °, a large length of the route, and a variety of installation. This is an efficient use of space and the lack of point distribution of air flows.
For those who care about the absence of noise effects and vibrations, this is the ideal solution.
Multizone systems
Japanese multi-zone FUJITSU - VRF-systems (with variable refrigerant flow), which can operate from 1 to 3 outdoor units and about 50 indoor, combined into one freon circuit. These are the huge management and dispatching capabilities that all FUJITSU GENERAL (J, S, V) multi-zone series have.
The total power can reach up to 120 kW and process more than 1500 m² of premises. In all systems, the main plus is the length of highways with a single branch size of up to 150 m² and a height difference between external and internal blocks of up to several tens of meters. This allows you to install them quite far from each other.
FUJITSU GENERAL presents a range of outdoor units in the form of 5 main modules and 3 mini blocks. The power of the first reaches 135 kW, and the second to 15.5 kW. Indoor units consist of 7 types and a total of 55 models with minimum power ratings from 2.2 kW and maximum up to 25 kW.
Advantages and features of FUJITSU GENERAL multi-zone systems
Impressive variability in operating temperatures. External units during cooling - from -15 to + 45 °; mini-VRF - from -5 to + 45 °. When heated - from -20 to + 21 °. Such systems can work year-round and around the clock.
Wide range of performance. It is possible to connect internal ones to an external unit with a total power exceeding its own by 30-50%.
High reliability of the system due to alternate and redundant operation of the outdoor units, protection against liquid return to the compressor, special coating that prevents heat exchanger corrosion.
A large set of automatic modes, such as, for example, switching and selecting the desired mode - in case of insufficient temperature in the room, the system itself will start the heating mode.
Low noise level, which reaches 19 dB for low-performance indoor units of cassette, wall and channel types with electronic expansion valve.
Significant savings in energy resources due to seasonal settings of temperature values (you can limit the range of parameters), an automatic shutdown timer (start up for a certain number of hours), and limited installation performance at low heat load.
The systems are very simple to design and maintain.
The J series is suitable for installation in small buildings, while the S and V series are suitable for multi-story buildings with an area of more than 200 m².
Instructions and technical documentation for air conditioners FUJITSU
FUJITSU air conditioners are always supplied with a standard operating manual, which explains the installation rules of the device and the features of its operation.This brochure also includes the section “Instructions for the FUJITSU air conditioner remote control”, which also describes error codes in detail. It must be studied in order to know how the various modes are activated via the remote control or on the device itself. Here are explanations of all the functions of a button.
For example, the instruction manual for the channel air conditioner FUJITSU explains how to use the wired remote control, on which many new keys are located:
- ZONE CONTROL - zone management;
- ENERGY SAVE - mode of economical consumption;
- MASTER CONTROL - setting the operating mode.
This is an incomplete list, so when buying a duct air conditioner FUJITSU or any other type, you need to familiarize yourself with all the key designations and error codes in the operating instructions for it, if any.
In addition, the instruction for the FUJITSU air conditioner contains information about error codes and possible device malfunctions. In some cases, the user can fix the problems himself, in others, a wizard call is required.
You can’t try to reflash the air conditioner yourself! This can overwhelm all automation settings.
In addition to the instructions for air conditioners FUJITSU, there is also technical documentation that contains circuit diagrams of devices, in particular electrical circuits of FUJITSU indoor and outdoor units and recommendations for repairmen.
It should be borne in mind that for any model of FUJITSU air conditioner a separate service documentation is issued, as well as the instructions for the consoles, so you cannot use the same circuit for all devices, although they are similar in their solutions.
On the contact plate there are clamps for interconnects and power connections:
- L is the phase;
- N is neutral;
- The surge protector (Filter Board) protects against voltage surges;
- The microprocessor (Control Board) exercises control over the operation of devices, receives and processes data from sensors, is responsible for thermoregulation, shows information on the display, and self-diagnoses problems;
- Main Relay relays voltage to compressor;
- The indicator board (Display Board) displays the main parameters of work;
- Thermistor (PT) - temperature sensor of the evaporator;
- Thermistor RT) - temperature sensor for intake air;
- A step motor (Step Motor) opens the louvre grille, thanks to its discrete angular movements, it is possible to fine-tune its position;
- Drain pump (Drain P.M.) in cassettes;
- Float Switch condensate level sensor for cassettes;
- Fan Motor - electric fan motor;
- Fan Motor Capacitor - starting capacitor of the fan motor.
If for some reason you can’t find the wiring diagrams of the indoor unit of the FUJITSU air conditioners (this also applies to outdoor units), then you should contact the manufacturer or distributor.
FUJITSU air conditioning customer reviews
In 99% of reviews on air conditioners FUJITSU leave positive. Most users note in their work:
- noiselessness - this criterion is called one of the first;
- energy efficiency - many people began to spend less money on electricity compared to using air conditioners of other companies;
- high-quality air treatment - the selected temperature is achieved quickly and is well maintained throughout the entire operation of the unit, there are no differences in marks in the zones;
- track length - in some rulers it allows installation even in those buildings where it is not allowed to spoil the facade with any installations;
- many different "chips" and "lotions" such as a weekly timer or adjust the air flow;
- ergonomics - saving space on the face.
Many buyers note in their reviews of FUJITSU air conditioners that the quality of work and the duration of operation justify the price of the device itself and its installation.
