Alkkt/Industrial Commercial Residential Rooftop Direct Expansion Air Handling Unit/Air Chiller

Alkkt/Industrial Commercial Residential Rooftop Direct Expansion Air Handling Unit/Air ChillerDirectly connect with air duct, no auxiliary equipment, easy to install.
Smaller area: Integrating indoor and outdoor units, more compact structure.Cooling capacity:15KW-140KW
utilization area: dozens of square meters to hundreds of thousands of
square metersOur Company
With more than 30 years manufacturer and marketing experience, ALKKT offers
variety of HVAC products which can meet your multifarious demands.Our company
has 70,000 square meters with 400 employees. Our Equipment
Our honor
We own 3 national- class laboratory, more than 100 patents, ensure to keep the
high quality of all the products.Our principles are of "quality first, customer first and
credit-based" since the establishment of the company. With perfect quality management system, we have got the certification of ISO09001 , ISO14001 and OHSAS18001.Our Partners
The detail of the unit
Roof Direct Expansion air cooled unit can exchange heat directly between
refrigerant and air to be processed.Feature:1. Case body patent designs
(1). The case body uses high-strength aluminum material
(2). Ultra-low air leakage ratio
(3). Completely cut-off cold bridge,good heat preservation effect2. Polyurethane sealed case body with patent design provides excellent
sound insulation effect. 3.Remote Intelligent Control System
Symbol display and buzzing prompt are used in all operations.
Switching time can be set, timing switch.
Automatic heat and cold conversion
Cold-proof air: It has cold-proof air on startup, cold-proof air on shutdown
and minimum temperature setting restrictions.
Remote Control: Users and manufacturers both can control the
unit remotely through computer or mobile APP.
4.The unit uses internal screw tube and hydrophilic slotted fin, and
the heat transfer efficiency increases by 20%.
5.Double Electronic Expansion Valve in Main and Auxiliary Circuits to throttle.
Precise temperature control, more energy-saving operation.6.Complete protection function: flow rate protection, LP HP protection,
anti-freezing protection, fan overload protection, compressor
overload, overheat protection, phase order protection etc.
Control lock function: can lock the operation of the unit, only the switch is effective to
prevent misoperation.7. Excellent noise control. Big fan blade and low-speed fan ensures low running noise.8.Easy toinstall andmaintain
only the duct design, no need accessories such as pumps.
No special machine room
High operability of the process
Short construction period9.Widely application
Wide range of temperature control
High cleanliness control
Compact unit structure
With fresh air functionTechnical dataModelWKR15GWKR25GWKR30GWKR35GWKR50GWKR60GWKR70GWKR100 GWKR120 GWKR140 GPower supply380V-3PH-50HzCooling
Cooling capacitykW15253035506070100120140Kcal/h1289821496257953009542992515916018985985103181120378PowerkW5.69.411.313.21923.126.836.247.354.3Heating
Heating capacitykW15.826.53237.353.26474.5107128.1148.6Kcal/h13586227862751532072457445503064058922003110146127773PowerkW5.59.411.112.918.6232639.446.755.2
RefrigerantTypeR407C/R410AWeightkg4.87.88.59.37.8*28.5*29.3*27.8*48.5*49.3*4Operating modesMicrocomputer controlSecurity protectionVoltage protection, LP&HP protection, compressor overheat/overload/phase protectionCompressorTypeHermetic scroll compressorCondensing sectionFan typeAxial fanAir flowm3/h9000120001200012000240002400024000480004800048000PowerkW0.25*21.11.11.11.1*21.1*21.1*21.1*41.1*41.1*4Condenser typeHigh efficiency heat exchanger with hydrophilic aluminum fins and internal screw copper tubeEvaporation sectionSupply air fanCentrifugal fanAir flowm3/h300050006000680080001100014000190002200024000PowerkW0.551.11.51.51.52.24.07.57.57.5ETPPa170170160200150300260500400300Evaporator typeHigh efficiency heat exchanger with hydrophilic aluminum fins and internal screw copper tubeFilterNylon filterWeightkg2353254004306407808301280156016601,Cooling condition:return air dry bulb temperature 27ºC,wet bulb temperature 19ºC,outdoor dry bulb ambient temperature 35ºC.
2,Heating standard condition:return air dry bulb temperature 20ºC,outdoor dry bulb ambient temperature 7ºC, wet bulb ambient temperature 6ºC.
3,The data may be modified due to technical progress.Function sections
Function sections resistance
Function sections
ClassificationFunction section
resistance paMixing sectionReturn air and fresh air mixing section25Return air fresh air and exhaust air mixing section25Filtering sectionSee the following table
Surface air cooler section2 rows454 rows806 rows1208 rows160Hot water heating section2 rows304 rows566 rows105
Steam heating section1 row402 rows603 rows80Electric heating section-20Moisture eliminator section-35Diffuser section-30Wet-film humidifying section50mm(humidification efficiency 30-36%)20100mm(humidification efficiency 55-60%)35150mm(humidification efficiency 65-70%)50200mm(humidification efficiency 75-80%)75250mm(humidification efficiency 85-90%)85300mm(humidification efficiency more than 90%)93Energy-recovery sectionPlate heat exchanger140Wheel heat exchanger170Noise elimination sectionDissipative muffler25Micro-perforated muffler30FiltersFilter levelInitial resistance PaFinal resistance PaPlate filterG33575G445105Bag filterG33595G445105F565130F685150F7105170F8130220
High-medium and sub-HEPAF7105170F8130220F9150240H10170240Our product