YAMATO JYUKEN, INC “Full-scale air conditioning” will be operated for the whole building!
Even at the hallway or the dressing room in the winter, the entrance or upstairs in the summer, room temperature is almost constant everywhere in the house. A comfortable house is operated throughout the year.
Our house does not create an indoor temperature difference that causes heat shock. Furthermore, we eliminate the pollen and PM2.5 that protect family health in a clean environment.
Low cost & energy saving
There is no need for excess savings. You do not need an air conditioner in each room. As there is only one air conditioner for the entire house, the installation cost and the monthly electricity bill are also saved.
Through the heat exchange unit, fresh air is taken and released inside the house, the installed full-scale air conditioning system controls the room temperature. The heated or cooled air is carried to each room by ducts and air chambers.
Filter unit・Heat exchange unit
Fresh air taken from the outside, through the filter unit, shuts out the invasion of pollen and dust (PM2.5). In the heat exchange unit, heat energy is collected from the discharged air and supplies it again.
Air conditioning room
The taken-in air is sent to the air conditioning room through the air intake port, and the temperature is adjusted by the room air conditioner.
Duct ・Air chamber
Temperature-adjusted air, through ducts and air chambers with a blower fan, is carried to each room.
Air intake port
The air carried to each room is blown out from the air intake port installed on the floor or ceiling, which circulates in the room.
The air circulated in the room is discharged through heat exchange with the air taken in from outside air through the heat exchange unit from the discharged port.
(※ One part will be the ventilation section)
Methodology: Extract five measurement points in the model house, then compare the temperature change of 1 day.
This the outdoor and indoor temperature of spring and midsummer!
※ Ota, Gunma Prefecture model house (4 LDK + step in the loft)
※ Area 156 m2 (47 tsubos) including the stairwell
※ 24 hours/day, 365 days/year
※ Air conditioner setting: Heater (November～March): 23 °C Cooler (June～September): 24 °C
24 hours, 365 days, you can always be comfortable.
“ENEGE” is highly airtight and highly insulated, it’s not easily affected by the outside air, so even when the outside temperature is below 10℃, the temperature inside the house remains constant. Furthermore, with the full-scale air conditioning, you can live comfortably in all year round.
Outside temperature and indoor temperature of Summer (8/23) ・ Winter (1/14)
Air conditioning system YUCACO Guidance ・ Supervision
On the introduction of this system, Emeritus Professor. Yuzo Sakamoto from the Tokyo University, Chairman of “YUCACO System Research Group” established to spread the YUCACO system throughout Japan, and specializes in architectural environmental engineering. For many years, he has been researching on energy-saving houses. He is an expert in the field and has participated in the planning of energy saving measures in the country and Tokyo. The system, recommended by the professor, is a trustworthy and groundbreaking method that has been academically proven to be highly efficient.
Please experience the Full-scale air conditioning and High airtight・High heat insulation house at our model house.
Yuko SakamotoEmeritus Professor, The Tokyo University,
Masato Iguchi,Assistant Professor, Department of Architecture, Faculty of Science and Technology, Japan University
Comfortable temperature everywhere in the house
The corridors, lavatory, bathroom, and toilets are all adjusted to a comfortable temperature, so you can always be comfortable without being bothered by the temperature difference.
Always fresh and refreshing space
The fresh air from the outside is taken in, the dirty air and moisture in the room are discharged, the room is always filled with clean and refreshing air.
Slow and gentle air conditioning
Because the adjusted air is gently carried through each room, it is perfect for those who are not tolerant of the air conditioner wind or the rapid temperature change.
Living surrounded with favorite rooms and interiors
As the air conditioner for each room is unnecessary, the design of the room is highly free and the ideal residence is spacious and open planning.
The time has changed from “EB (energy benefits)” to “NEB (non-energy benefits)”
Energy Benefit: The effect and benefit related to the reduction of energy consumption and utilities.
Non-Energy Benefit: The comfort and health improvements related to reductions in energy consumption and utilities. Benefits related to things such as safety.
In Europe and the United States, it is common knowledge that homes with high heating and cooling effects have excellent energy saving performance, protect people from the natural environment, and have a preventive effect against the diseases related to climate or grown human.
Also, in Japan, various studies have shown that highly heat insulated house is effective not only in cold weather but also in the alleviation of allergies such as atopic dermatitis. The housing policy of the country, which promote the ZEH (Net Zero Energy House) towards 2020 also emphasizes NEB (Non-Energy Benefit). Since the launch of the “ENEGE” in 2007, Yamato Housing has provided NEB (non-energy benefits) homes where people can live in warm, healthy and comfortable houses.
The importance of improving the house insulation performance
Of the four elements of “Drinking”, “Exercising”, “Smoking” and “Insulation”, “Heat insulation” is the most effective in improving health.
High heat insulation house in health improvement effect
In terms of energy saving, it is thought that if the Heat Insulation Degree of the country's energy saving standard is around (Q value 2.7 W / m2 · k), the energy would be sufficient. However, if the heat insulation performance is further enhanced, it would be effective for health improvement.
Airtight and highly insulated houses are required the "Ventilation plan" to ensure that fresh air and dirty air flow as planned. Air is circulated systematically with almost no change in room temperature to discharge dirty air and moisture.
High-quality indoor air
As people often spend much time indoors, those air is into their bodies.
It is important to improve Indoor Air Quality (IAQ) and create a living environment where people can live healthily.
Structure of the Total Heat Exchange
Since heat moves from high to low places and moisture moves the same way, the outside hot and humid air passes through the Heat Exchange Element, transferring heat and moisture to the cold, dry air inside and discharging it to the outside.
Because heat moves from high to low places and moisture moves the same way, warm humid air passes through the heat exchange element when heated, transfers heat and moisture to the cold and dry air.
Control air pressure
Switch to outdoor air cooling
Heat exchange air
The heat loss due to the hot air is recovered, the heat energy taken from the fresh air outside is returned into the room.
As registered, when the outside temperature is 0 °C, the heat exchange is operated and the air is supplied at 17 °C.
(When the room temperature is 20 °C)
When the total heat exchange is operated between the summer humid air and the indoor dehumidified air by the air conditioner, the outdoor humid air is brought to the dehumidified, then supplied into the room.
Control air pressure
Control air pressure
By reducing the volume of the discharged air without changing the volume of taken air into the room, the air pressure in the room increases, and the invasion of pollen, powder, and dust (PM2.5) is reduced.
In the spring and fall, when the indoor and out door’s temperature difference is small, the amount of air supplied is the same, power consumption is reduced by reducing the discharged air flow.
Ventilate with heat exchange air unit and duct installed in the ceiling
In winter, the energy of warm air in the room is used to hear and take in the cold air outside.
Outdoor humidity 0 °C, blowout grille, heat exchange element, room temperature 20 °C
No need for excessive equipment! Initial cost and running cost is reasonable!
In Yamato Housing's full-scale air conditioning system, only 1 air conditioner is installed for the entire building, which adjusts the air to a comfortable temperature and carries it to each room.
Energy consumption is minimum! Eco and energy saving!
The “ENEGE” High airtightness ・ High heat insulation, maintaining a comfortable temperature, is not easy to be affected by the outside air both on hot summer days or cold winter days, not affected by the season or time.
Optimal ventilation prevents heat loss and reduces room air conditioner costs!
In the 24-hour ventilation system, the outside air heat is taken into the building and the heat of the air discharged from the inside of the building is well utilized and exchanged. The room is comfortable and environmentally friendly.