DamaTajhiz Air Handling Unit Model DT-AHU-30

Selecting and Purchase Guide for DamaTajhiz Air Handling Unit Model DT-AHU-30 

The Air Handling Unit (AHU) produced by DamaTajhiz is designed and manufactured with an airflow capacity range of 2500 CFM to 50000 CFM in various models, including single-zone and multi-zone (multi-zone) configurations in horizontal, vertical, and L-shaped designs. 

Important Note: The dimensions of the DamaTajhiz AHU, as stated in the technical specifications section, are based on the horizontal model and include both cooling and heating coils as indicated in the technical specifications table.

The 3000 CFM DamaTajhiz AHU Model DT-AHU-30, with a capacity of 3000 CFM, is designed and manufactured by DamaTajhiz. It is suitable for temperature and humidity control as well as ventilation in large facilities, auditoriums, lecture halls, hospitals, offices, and more. 

 Advantages of the DT-AHU-30 Model 3000cfm Air Handling Unit 

• Constructed with a double-layer body and fully thermal insulation. 
•  Utilization of polyamide fiber-reinforced joints and corners resistant to heat. 
• Powder electrostatic coating for the unit body with a thickness of 60 microns. 
• Vibration isolation for the fan and motor connected to the unit body using thick sheets to prevent noise and vibration. 
•  Coils with copper pipes and aluminum fins arranged with 8 fins per inch (FPI). 
•  Customizable air handling unit capacities ranging from 2500 to 50000 (cfm). 
•  Equipped with Siemens (Germany) and Marelli (Italy) motors with IP55 protection and Class F thermal insulation. 
•  Framing and damper structure made from 6063 aluminum profiles according to AROSIO (Italy) design. 
•  All parts of the unit are fastened with specialized bolts and nuts for complete air and water sealing. 
•  Ability to install various heating and cooling coils, including hot water, steam, and direct expansion (DX) coils, based on requirements. 
•  Various types of filters available (bag filters, HEPA filters, and pre-filters) for comprehensive air purification. 
•  Option for a washable sand filter system (customizable, with 80-micron thickness). 
•  Equipped with dampers for fresh air intake, return air, and mixed air; additional exhaust dampers can be installed if necessary. 
•  The unit body is statically and dynamically balanced to prevent additional vibration and noise. 
•  Use of different types of centrifugal fans (Airfoil, backward, and forward-curved). 
• Available in single-zone or multi-zone units (with optional terminal filters, and ducts) and in vertical or horizontal configurations, adaptable to the installation location and customer requirements. 

Features of Damatajhiz Air Handling Units 

1. Customer Requirements 

• A full and diverse range of air handling units in various capacities are designed and produced by Damatajhiz, allowing customers to easily select a unit that meets their project needs. The main structures of these units are made in 14 standard sizes by the company. 

2. High Durability 

• The use of high-quality galvanized or stainless steel sheets in the unit’s casing, suitable oils, and fully suitable thermal insulation materials, along with aluminum and durable polyurethane corner joints, ensures the unit’s longevity. 

3. Quiet Operation 

• Precisely designed and calibrated fans with specific angles for all fan capacities (backward and forward types) with silent operation capabilities due to internally sound-insulated materials allow the unit to function quietly in all conditions.

 4. Ease of Repair and Maintenance

• Damatajhiz air handling units, with structurally suitable and stable components, are designed to allow easy and quick access to the interior of the unit. This includes placing inspection windows and access doors at suitable points in the structure to facilitate periodic servicing, as well as easily replaceable parts in case of potential repairs under certain conditions. 

Specifications of Installed Parts in the DT-AHU-30 Model 3000cfm Air Handling Unit

1. Fan 

• The main component of the air handling unit includes a mixed heating and cooling coil, used as a cooling coil (in summer) and a heating coil (in winter) and equipped with air-passing fins that prevent the entry of dust and airborne particles.

• The fan in the DT-AHU-30 model Damatajhiz air handling unit is made from aluminum with specific design angles for optimal (quiet) performance and is of the backward or forward type, customizable based on customer order and preference.

2. Electromotor

 • The only moving component inside the air handling unit is the electromotor. Damatajhiz air handling units use high-quality electromotors from German and European brands, providing high durability and longevity, which operate efficiently with low electricity consumption and reliable operation for a long service life. 

• According to customer requirements, the air handling unit can be equipped with an adjustable-speed electromotor with an RPM range from 1450 to 2900 for precise and efficient operation. (For units requiring minimal speed, Damatajhiz recommends air handling units with CAV systems, while for variable speed requirements, VAV systems are suggested.)

3. Painting 

• In the design and construction of Damatajhiz air handling units, a high-quality anti-corrosive paint is applied, with complete coverage to ensure long-term reliability of the unit. 

4. Main Structure 

• The main structure of the 3000cfm DT-AHU-30 Damatajhiz air handling unit is constructed from aluminum profiles with anti-rust, anti-yellowing, and adhesive properties to ensure full structural integrity. 

5. Sound Reduction and Quiet Operation 

• To minimize noise and provide quiet operation, the interior of the air handling unit is fully insulated using premium acoustic materials.

6. Device Body:

• The body of the air handling unit is manufactured with galvanized sheets or aluminum, both of which are treated to prevent corrosion and rust. 

 • The housing of the Damatajhiz AHU device consists of two parts: internal and external walls. 

• The external wall of the device is made of galvanized sheet metal, which is very durable and resistant, considering the device’s capacity and according to the buyer’s order. The internal wall is also made of galvanized sheet or stainless steel. 

7. Filters:

 • One of the essential features of Damatajhiz air handling units is the type of filter used and the necessity of supplying air that is free of any germs and dust for individuals, making the AHU system of utmost importance. 

• The Damatajhiz air handling unit has two filter systems: a pre-filter and a main filter. The pre-filter is generally made of aluminum and is designed to filter out large particles and dust. The main filter can be ordered with different efficiencies depending on the requirements. 

• This filter can be washable and has various characteristics.

8. Panel Filter: 

• One of the most important features of the device is the use of panel filters.

 • Panel filters installed on Damatajhiz air handling unit devices filter out fine particles in the air, such as dust particles, pet hair, etc.

 • As the second stage, panel filters are used in air conditioning units and air handling units. 

9. Bag Filter: 

• The Damatajhiz air handling unit, with all its options, is equipped with a bag filter as the last stage filter.

• Bag filters are used in AHU systems to improve and complete the air quality. 

• Bag filters in HVAC systems are generally used for indoor spaces that require a higher level of cleanliness. 

10. Applications: 

• In the medical, pharmaceutical, and food industries, where sterilized and very clean air is essential, AHU systems are used to filter the air. 

• HVAC systems are also widely used in indoor spaces and cleanrooms to prevent contamination.

11. Coil:

 • One of the essential parts of Damatajhiz air handling units is the coils. The cooling and heating coils of the AHU device are designed with aluminum fins and copper pipes, which improve the heat exchange. 

• The number of rows and fins per inch (FPI) in the coils determines the AHU capacity, and engineers can determine the appropriate number of rows and fin spacing based on air pressure and flow. 

• The primary surface of the coils is made of copper tubes with high durability, and aluminum or copper fins can be chosen based on the customer’s request.

12. Control Equipment:

 • To control and precisely manage the humidity level of the Damatajhiz air handling unit, various control and monitoring devices are used. 

• Specific requirements of AHU systems can be provided as custom-built devices.

13. Fan Motor: 

• The 3000 CFM Damatajhiz air handling unit model DT-AHU-30 fan motor model operates with precise humidity and air volume control.

14. Water Valve: 

• By installing a water valve (cold or hot water valve) on the cooling coil and hot water on the heating coil, the air handling unit system can adjust and control the water intake to provide cool air in the summer and warm air in the winter.

15. Inverter: 

• In air handling units with high capacity, inverters are installed to control the air volume according to the needs of the space. 

16. Differential Pressure Switch: 

• In the Damatajhiz air handling unit used in medical, pharmaceutical, and industrial applications, a differential pressure switch with high sensitivity is used. 

17. Humidity Sensor:

 • The humidity sensor on the Damatajhiz air handling unit controls the output air humidity, increasing or decreasing the humidity as needed. 

18. Temperature Sensor: 

• The temperature sensor on the AHU device controls the heating or cooling elements to maintain the desired temperature.

19. Particle Counter:

• This component is used in hygienic (sanitary) AHUs and in cases where clean and sterile air is required. 

• The particle counter is responsible for accurately measuring the suspended particles in the output air of the AHU. If the amount and specifications of these particles do not meet required standards, the system will take appropriate actions and issue necessary warnings. 

20. Dampers: 

• The air dampers are aluminum blades with an airfoil shape that are positioned in opposite directions. Their function is to control and adjust the percentage of fresh air volume and its mixture with the return air to the AHU. 

• To enable the rotation and operation of the damper, durable polypropylene gears are used. Additionally, the damper edges are fully sealed with high-quality seals to prevent air leakage. Upon the customer’s request, a damper motor can also be installed on the AHU’s air dampers.

21. Access Door:

• To facilitate easy and secure access to the AHU’s interior space for routine inspections and periodic maintenance, as well as for potential relocation and repairs, an inspection door with a hinge and handle made of polypropylene with complete air sealing is installed on all DamaTajhiz AHUs. 

Installation Considerations for Air Handling Unit

•  It is necessary to provide a drain in the AHU room for cleaning and periodic maintenance.
•  After installing the AHU, it is essential to use anti-vibration rubber or polystyrene to prevent vibration transmission from the AHU to the surrounding foundation. 
•  To allow for potential coil replacement over a long operational period, according to engineering standards, a space equivalent to 1.5 times the width of the device should be left on one side of the installation area. 

Important Points When Inquiring About AHU Pricing

•  Installation location 
•  Return air volume 
•  Front discharge or top discharge configuration 
•  Determining the airflow capacity of the AHU
• The thickness of the coils, body sheet, and frames of the AHU 
• Dimensions and whether the AHU is horizontal or vertical 
• Number of rows, heat exchange surface area, and number of fins per inch for heating and cooling coils
• The static pressure of the AHU fan (which drives the air through the air ducts and varies based on the AHU motor’s speed and power)

Ordering and Warranty of the 3000 CFM DamaTajhiz AHU Model DT-AHU-30 The 3000 CFM

DamaTajhiz AHU Model DT-AHU-30 comes with a 15-month DamaTajhiz warranty and 10 years of after-sales service. At the DamaTajhiz reference and specialist center, technical information and guaranteed prices are provided for purchasing DamaTajhiz AHUs with various capacities and the warranty, allowing you to enjoy a smart and optimal purchasing experience.

 To view and learn more about the warranty and technical specifications of various standing and horizontal AHUs, please click on the “Technical Specifications” tab on each product page.