Direct Expansion Dx Air Handling Units with Heat Recovery

1.Eurostars air handling unit and air handler featuresRotary heat exchanger (heat recovery wheel) is mainly used in building ventilation or in the air supply/discharge system of air conditioning equipment. The wheel transfers the energy (cold or heat) contained in exhaust air to the fresh air supplied to indoor.It\'s a piece of

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1.Eurostars air handling unit and air handler features
Rotary heat exchanger (heat recovery wheel) is mainly used in building ventilation or in the air supply/discharge system of air conditioning equipment. The wheel transfers the energy (cold or heat) contained in exhaust air to the fresh air supplied to indoor.It's a piece of important equipment and a key technology in the field of construction energy saving.

Rotary heat exchanger section
1. Rotary heat exchanger is composed of heat rotor(wheel), frame, drive system, double purge sector and sealing parts etc..
2. Supply air(SA) passes through half of the wheel, exhaust air(EA) passes through reversely the rest half of the
wheel, meanwhile the wheel is rotating driven be the drive system. Thus, the wheel can be self-cleaning.
3. Drain pan is equipped under the wheel, in case condensed water occurs from fresh air in summer or return air in winter when their temperature is decreasing. Meanwhile, make sure the drainpipe is expedite and water seal is installed.
4. Ice jam might occur on the exhaust side when operating in very cold area, if so, rotary speed reduction or turn-on of bypass is required to ensure safe operation of the wheel.
5. On some occasions with strict cleanness requirement, to minimize the carryover from return air to supply air, exhaust fan shall be placed in the leaving section of the exhaust side to create passive pressure, and the pressure shall be lower than that of supply side, so that the double purge sector can perform more effectively.
6. For easy transportation or easy installation in limit space, the wheel can be cut into segments.

Direct Expansion Dx Air Handling Unit with Heat Recovery
2.Eurostars Air handler,air handling unit, ahu application
EUROSTARS air handling unit can cool, dry, heat, humidify, filter and purify air with silencer function. It can be widely applied in the places where the air needs to be conditioned in a centralized way, such as shopping malls, hotels, office buildings and stadiums, as well as other purification air-conditioning places, such as hospital operating rooms, pharmaceutical, tobacco, food, precision instruments manufacturing rooms.

3.Air handler technical data, Assembly drawing diagram and photo
Modular Air Handling Unit
Model
EST
4R4MU46MU49MU412MU415MU418MU422MU425MU430MU435MU440MU445MU450MU4
6R4MU66MU69MU612MU615MU618MU622MU625MU630MU635MU640MU645MU650MU6
Air Flow*1000CMH46912151822253035404550
Cooling
Coil Section
Sensible Capa.
(KW)/4R
26405876102121131174201235274308348
Sensible Capa.
(KW)/6R
32497794122146185218258302349383433
Heating SectionE-Heating Capa.
(KW)
1218303645546072729090108108
Humidifying SectionHumidifying
Capa.(Kg/h)
5101315152530454560606075
Fan-motor
Section
ESP(Pa)600600600600600600800800800800800800800
Motor Power(KW)2.245.57.51111151518.518.5223030
Mixing Section
Pre-filter Section
Cooling Coil Section
Eliminator Section
Elec-heating Section
Humidifying Section
Fan-motor Section
Diffusing Section
Medium-filter Section
Supply Air Section
NOTE:
  1. Return air: Cooling: Air in 27ºC DB, 19.5ºC WB,Chilled water in/out:7ºC /12ºC;
  2. Technical parameters are subject to be revised without prior notice.
Direct Expansion Dx Air Handling Unit with Heat Recovery
4.Eurostars air handling unit , air handler range or series
-Horizontal ceiling ducted air handling unit
-Horizontal concealed air handling unit
-Vertical concealed air handling unit
-Vertical exposed air handling unit
-Modular Modulus Air Handling Unit-multi-function air handling unit
Direct Expansion Dx Air Handling Unit with Heat Recovery
5.Components-air handling unit or air handler

Casing Panel and Insulation
• Double skin construction is provided by sandwich type panels comprising inner and outer painted steel skins and polyurethane foam with minimum 48kg/m3 density, providing a good thermal and acoustical performance
• The gasket liner between the panels and frame ensures the air leakage rate to comply with GB/T 14294 clean air conditioning requirement
• The factory painted steel sheet covered with 6 insulation coatings, complies to 500h salt spray testing, showing an excellent corrosion protection performance

Frame
•Penta-post extra heavy gauge aluminum profiles and strong fiber-reinforced PE corner connection forming the structural  frame
• superior mechanical strength and rigidity to the unit frame and to prevent any buckling or deformation
• Thermal bridge free design, the profiles filled with polyurethane foam for insulation
• Anodizing surface treatment for profiles, corrosion-resistant
• Stainless steel frame available

Sight Glass Service Door
• Double skin structure, inner panel is made of stainless steel, and outer panel is made of painted steel sheet
• Positive and negative access door, ensures the airtight of unit
• Convenient to check the running status of the unit
• Double sealing, no air leakage
• Built-in multi-point fastening locks make the panel evenly stressed, preventing air leakage and loss of energy efficiency of the unit

Hot-Dip Galvanized Base channel
Offer Rigid Base Channel protect unit and save installation cost

Fan and motor
•NICOTRA centrifugal Fan or other brand fan;
•Double inlet
•Electric motor driven
•Back curved or front curved
•low noise, high efficiency, stable operation, low vibration, good strength, low bearing temperature rise, and wide working temperature and humidity range.
•Customized configuration of the motor selected high-quality brand-name motor, smooth operation, low noise, long service life, and can be equipped with a specified brand of motor or motor insulation, protection level people according to user requirements, to meet the needs of different occasions.
•EC Fan is optional
• plug fan is optional
Direct Expansion Dx Air Handling Unit with Heat Recovery
Vibration Eliminator
• To reduce the transmission of vibration and noise, fan and motor are installed on an independent complete base frame
• The complete base frame is isolated by deflection type spring isolators
• This unique structure not only reduce the vibration and noise, but also protect fan and motor during transportation

Cooling Coil
Cooling Coil is used to cool and dehumidify the air.Both DX (direct expansion) cooling and CW (chilled water) cooling coils are available for use depending on the system design.
These coils are arranged in rows with different fin spacing.Aluminum fins and copper tubes are used in the design of the coils.The corrosion resistance hydrophilic fins are also
used due to its lower cost and lower resistance to the air velocity.
Direct Expansion Dx Air Handling Unit with Heat Recovery
PTC Electric Heating
•Constant temperature heating
•Virtually unlimited life
•Low electricity consumption and very low in cost
•No electrical noise
•The higher the temperature, the more electricity efficient
•Avoid burning when in contact with combustible materials
Direct Expansion Dx Air Handling Unit with Heat Recovery

Electrostatic Precipitator(optional)
• Adsorb and remove particles less than 0.01 micron in the air
• Improve indoor air quality 
• ESP applies energy only to the particulate matter being collected and therefore is very efficient in its consumption of energy

Electrode Humidifier
•Cylinder monitor system ensures more efficiency, better energy saving and stable result
•Drainage pump ensures the humidifying process accurate and stable
•Clog protection system ensures to avoid water overflow
•Water temperature control system makes sure the drainage pipe won't be damaged by hot water
•Anti-electric leakage system makes operation and maintenance safe and secure
Direct Expansion Dx Air Handling Unit with Heat Recovery
Filters

Filters are to remove particles and contaminants of various sizes from the air. The type of air filter being used will very much depend on the application of the system.
Panel Filter is a flat and rectangular in shape and provides a minimum low efficiency filtration which is acceptable to the air conditioning industry. The high velocity filter
is arranged vertically whereas the low velocity filter is arranged in V shape. Typical air velocity that moves through the filters is in the range of 2-3 m/s.

HEPA Filter is very efficient and is able to achieve efficiencies up to 99.97%, removing minute particles and airborne bacteria from the air. It is usually used in clean room
applications such as semiconductor production floor, operating theaters and critical processes.

Electrostatic Filter is used to remove particles from the air by using highly charged electrodes that ionized the air.
Bag Filter is able to remove dust particles and is thrown away after use.
Roll Filter is used for high velocity filtration where the used part is rolled up automatically/manually.
Direct Expansion Dx Air Handling Unit with Heat Recovery

Differential pressure meter Brand name:PRECISE
Differential pressure meter( with signal transfer) can be configured acccording to user requirements. 

Air damper
•Variable discharge air volume
•Discharge damper with axial fan, independent control
•High efficiency
•Manual damper available

Heat Wheel Heat Exchanger(optional)
• Highly efficient energy-saving rotary heat exchanger
• Energy recovery rates between 70-90%
• Summer application is dehumidification of warm and humid supply air to reduce the energy consumption of the down stream cooling equipment. 
• Winter operation recovers moisture from the exhaust air to reduce the humidification load.

Stainless Steel Drain Pan
• Slop type design, no drain water carryover and keep the pan dry
• Avoid the micro-organisms growth inside the drain pan
Antimicrobial Drain Pan is offered as option
• SteriTouch technology Drip Pan Coating
• Antimicrobial surface
• Good exterior durability and corrosion resistance
• Excellent adhesion
• Non-toxic, comply with BS476 part 7

Electrical control cabinet(optioanl)
•According to the requirements and functions of the unit to design the control console or cabinet
•Auto control each section of the unit to make sure the temperature, humidity and cleaness
•High quality and international brand electrical elements
•DDC and PLC available

6.Why choose us?
Eurostars offers One Stop Solutions for:
•Pharmaceuticals industry
•Electronics industry
•Automobile industry
•Printing and food industry
•Commercial building
•VOC treatment and environment protection
•Indoor air quality
•Marine ventilation
Direct Expansion Dx Air Handling Unit with Heat Recovery
7.FAQ
1:Are you a factory?
--- Yes, we are a professional manufacturer for more than 13 years
2:How do you check the goods?

--- We inspect all the materials when they arrive, and have spot inspection during production process. All goods will be tested and double inspected before delivery, providing 100% guarantee for clients.

3:How to select the suitable models?
---The parameters above is just for your reference. We need you to provide us the air flow, ESP or TSP, cooling capacity, heating capacity or application for our team to design the suitable unit for you.


8.Customer visit us
Direct Expansion Dx Air Handling Unit with Heat Recovery
9.Air handling unit,air handler delivery or container loading
Direct Expansion Dx Air Handling Unit with Heat Recovery
10.Installation instruction or installation photo, project photos
Direct Expansion Dx Air Handling Unit with Heat Recovery

 

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