FOUR-HOME-CEILING Ceiling Type Residential Heat Recovery Unit is a registered trademark of Doğu İklimlendirme A.Ş.
Plastic Spigot F7 Filter Counter Flow Heat Recovery Exchanger Control Box Plastic Spigot M5 Filter M5 Filter Extract Fan Bypass Damper Motor Supply Fan FOUR-HOME High efficient fans with low sound level. Recuperator efficiency up to 90%. Optional electrical heater or DX / heating / cooling coil. 3 stage air flow speed control. (All stages can be set between 0-100%) Sensitive supply air temperature control. 25 mm acoustics insulation of the walls. Easy mounting. Galvanized, painted-isolated drip pan. Bypass damper. (Night cooling, freecooling and anti-freeze protection of the heat exchanger.) Full integrated plug & play control system. Optional CO2 or pressure sensor. Optional wireless temperature sensor, wireless CO2 sensor, wireless differential pressure sensor, wireless control panel-display available. Heat Exchanger Polypropylene counter flow. Efficiency up to %94. (calculated for balanced air flows) Special application for the anti-freeze protection. Large filtering area for energy efficiency and long service period. (up to 6 months) M5 panel filters or optional high efficiency F7 filter on supply air side. For low power consumption and low sound level use of EC plug fans preferred within HOME series units. (EBM-Pappst) 10 years product life time (40.000 hours) SPI (Specific Power Input): 0,277W m³/h SFP (Specif ic Fan Power): 1,558 m³/s (class SFP 4) @275 m³/h 150 Pa Static Pressure [According to EN 13779]
SUPPLY FAN EXTRACT FAN Supply Fan Supply Fan Supply Fan Extract Fan Extract Fan Extract Fan RPM 3200 83W / 0,75A RPM 3200 83W / 0,75A Supply Filter Extract Filter Insulation Control System M5+F7(optionel) M5 25mm LWA db(a) FOUR HOME Lwa total db(a) 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz Supply 65 54 58 61 61 52 44 39 Extract 49 43 55 46 39 33 28 29 Surrounding 49 46 54 47 41 38 29 27
Operation Description Availability On / Off Control panel or external start stop function is available. Display Digital control panel is available. Display Wireless controller is available as option. Optional Fan Speed Control 3 steps fan speed control of supply and exhaust fan is available. Fan Speed Control Constant air flow is available with pressure sensors. Optional Fan Speed Control Airflow control based on the air quality sensor is available. Optional Bypass Damper Function Free cooling is available, by controlling the indoor and outdoor air conditions. Frost Protection Function Where outdoor temperature is low, this function will be active by receiving information via humidity and temperature sensors. ModBus It controls all functions of unit via PC or central control system board. Filter Function Boost Function Safety There are 2 alternatives to control filters: Alternative 1: It records run time of the unit and when set time expires, control panel gives an alert for filter change. Alternative 2: Filter change time can be controlled with pressure switch mechanically. By this way, control panel gives an alert when f ilter needs to be changed. It is used in order to increase fan speed: Alternative 1: Via boast button on the control panel. Alternative 2: Via dry contact or light power input (230V) on PCB board. It automatically stops operating in case of interfering to the unit while it is working. Fire Alarm Function It will be active in case of f ire. Wireless Sensors Upon request, wireless CO2, differential pressure, temperature and humidity sensors are avaliable. Optional
Venues Breathe with Doğu HVAC Systems! Founded in 1999 Doğu HVAC, effectively started its activities in order to manufacture HVAC Equipment, Air Handling Units and Kitchen Ventilation Equipment, by following European norms. Doğu puts whole of its units on the market with Four Season brand. Doğu HVAC which is in business through 2 factories in İzmir, with size of 25.000 m 2 closed and totally 45.000 m 2 area, has 130 different types of products. In addition, 3 branch offices in İstanbul, Ankara, Antalya and authorized companies in many countries, are actively working for sales and after sales services. Doğu HVAC achieved a rapid growth with its strong sales network, more than 250 employees, large production capacity and advantage of complete certification, adapting the principle of customer satisfaction and 0 defect policy. Thus Doğu HVAC presents in more than 40 countries. Doğu HVAC R&D department developed new products, such as Make-Up Kitchen Hood, Recycle Laminar Airflow Unit, One Piece Square Ceiling Diffuser and Ecology Units and became the first manufacturer of these products in Turkey. Doğu HVAC guaranteed its quality of management by having advantages of ISO 9001, ISO 14001, ISO 18001 certifications. Air Handling Units have EUROVENT, TUV Hygiene (in accordance with DIN 1946-4, VDI 6022-1, DIN EN 13053 standards), CE, TSEK, GOST-R certifications; Fire Dampers have EN 1366-2 and EN 13501-3 CE certifications; Smoke Control Dampers have EN 1366-10 and 12101-8 CE certifications; Kitchen Ventilation Products have TSE, CE and GOST-R quality certifications.
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Factory İTOB Org. Sanayi Bölgesi 10010 Sk. No: 4 Tekeli, Menderes, İzmir/TURKEY Tel: +90 232 799 02 40 Fax: +90 232 799 02 44 İstanbul Area Ağaoğlu My Office Barbaros Mah. Çiğdem Sk. No: 1 Kat: 4/18 Ataşehir, İstanbul/TURKEY Tel: +90 216 250 55 45 Fax: +90 216 250 55 56 Ankara Area Çetin Emeç Bulvarı Lizbon Cad. 55/14 Öveçler, Çankaya, Ankara/TURKEY Tel: +90 312 472 11 45 Fax: +90 312 472 11 46 www.doguhvac.com