Withair® provide expertise and industry insights that help you go beyond. Purpose-built process cooling for a myriad of industrial applications. For applications that require high performance, reliability and operation continuity in difficult industrial environments.   Our process chillers help improve uptime and extend component life.

* Applicable Markets: Aggregate and concrete, Beverage, Chemical, Food, Laser, Mechanical, Medical, Printing/graphics/paper, Rubber and plastics, Solvent recovery, Vision/sorting, Waste energy/biomass

* Capacity Range: 1 ton to 200 tons.

Well suited for both indoor and outdoor installation, the Air-Cooled Liquid Process Chiller helps enable applications that require high performance, reliability and continuity of operation in difficult industrial environments. The Air-Cooled Liquid Process Chiller, offering 2 to 200 tons of cooling capacity, is designed for industrial use with space and functionality in mind, can fit in tight spaces and features a more forgiving tube evaporator.

Helping to offer reliability and compatibility

The finned-tube evaporator installed in the Chiller coolant storage tank helps provide lower pressure drop and reduced fouling and chance of failure due to freezing, clogging and/or pressure drops compared to a brazed-plate evaporator, allowing a high level of reliability in heavy industrial applications.  The innovative finned-coil evaporator improves heat transfer surface while helping to reduce coolant pressure drop. And the polyethylene tank and non-ferrous hydraulic circuit are compatible with a wide range of process coolants including deionized water and glycol mixtures.  The available stainless steel tank non-ferrous option means it is compatible with a wide variety of coolants. Its air-cooled condenser is installed on one side only, reducing footprint requirements. And the insulated, pressure-rated tank offers a steady supply of cold process fluid as well as the flexibility to be operated as either an open or closed loop.

—— Widely Operation Range of Cooling ——

The modular water chiller unit is specially designed and can run in all weathers at the ambient temperature of -10℃~48℃.

—— EC Fan With Stepless Speed Regulation ——

The condensate fan employs the EC motor of which the speed is variable between 20%~100% to ensure that condensing pressure is within the range of safe operation under all conditions for longer service life.

CLASSICAL MODULAR UNIT

The new generation environment-friendly modular air-cooled unit is based on years of experience in R&D and design, which is greatly improved in aspects of the structure, system and microcomputer control technology, providing wider operation range of refrigeration and heating, and higher adaptability to applications with requirements on comfort and technology. There are basic modules of any combination available for different models, and at most 16 modules can be connected in parallel.

—— Excellent Capacity ——

Units of the same model or different models can be combined freely. Each group can combine up to 16 modules.

—— Intelligent Defrosting Technology, Non-stop When Defrosting ——

The unit control system can determine whether defrosting is necessary according to the ambient temperature in heating mode, evaporating temperature and running time; when defrosting conditions are met, the unit will automatically activate the defrosting program to complete defrosting within a short time and provide heating operation efficiency up to over 90% , ensuring the optimum heating capacity and high COP.

—— Free Master Module Design ——

Any single unit can operate as the master once connected with the wired controller. It overcomes the problem that the whole system would fail to work properly when the fixed master unit malfunctions.

—— Intelligent Air Volume Management ——

The shared duct system is adopted to greatly expand the operating range. The single-module unit can automatically increase or reduce fans based on the ambient temperature to achieve optimal matching between air volume and load and deliver outstanding performance.

—— Intelligent Energy Management Technology ——

The Unique intelligent energy regulation technology in multi-module combination ensures that each module loads or unloads a refrigerant circuit before loading or unloading other refrigerant circuits in the single module, thereby providing higher efficiency, stability and IPLV.

—— Widely Operation Range ——

        Low temperature cooling: 5°C ~ 48°C

        High temperature heating: -15°C ~ 48°C

—— Compact Design And Smaller Footprint ——

Unique and compact structure results in small size and occupied area, significant reductions in installation space and cost; the unit is compact and easy to install. A 136kW unit covers floor space of only 2.4m2, a 50% reduction compared to its equivalents.

—— Reliable Hermetic Scroll Compressor ——

Unit adopt reliable hermetic scroll compressor, which is high efficient, energy saving and operates stably, with low noise, slight vibration and long service life.

—— V-Shaped Condenser ——

The V-shaped condenser has used condenser has used an integral reinforcing metal frame, internal thread and tripe anti-frosting features (patented design of open-window hydrophilic aluminum foil + bottom elevated + one-way valve), providing higher structural stability and corrosion resistance; with heat exchange efficiency improved through full use of heat exchange area, low tendency to dust accumulation and frosting in winter, low loss of pressure, smoother drainage and higher reliability.

—— Efficient Shell And Tube Heat Exchanger ——

The waterside efficient shell and internal thread heat exchanger is of helical baffle type, with better heat transfer performance and higher resistance to freezing than plate heat exchanger, lower water resistance and lower requirements for water quality.

—— Saw-shaped Condenser Fan Blades ——

Compared to plastic impellers, the saw-shaped condenser fan blade provide large air volume, high durability and high air supply efficiency with low noise.

—— High Precision Electronic Expansion Valve ——

The electronic expansion valve achieves 480 regulating range, supplemented by Withair's patented precision throttle control technology to realize dynamic matching in refrigerating system, fully improve the optimum efficiency of each component and ensure the optimum condition of system operation pressure and temperature.

—— New R32/R410A/R-454B Environment-friendly Refrigerant ——

R32/R-410A/R-454B environment-friendly refrigerant does not contain chlorine which destroys the ozone layer, and the ozone layer destruction system (ODP) is zero. At the same time, it effectively reduces CO2 emission, has stronger anti-low temperature ability and higher cooling efficiency.

—— In House Engineered Microprocessor Control ——

The Withair control panel is fully upgraded based on origin control panels with years of experience in R&D and design, which combines more functions including phase sequence detection, current detection, RS-485 communication interface, delivering stronger performance, utility, standardization, convenience and universality. The USB interface is so provided to facilitate later-stage maintenance and upgrade of control function. The panel is supplemented by Withair developed control program which offers full operation control and multiple safety protection functions.

—— Multiple Protection Functions, Providing Safety And Reliable ——

The unit has multiple safety protection functions which ensure safety and stable operation of the unit and systems. 

The water flow switch and multiple anti-freezing program designs protect the unit and systems in an all-round way.

—— Super Protection Function To Ensure The Safety Of System Operation ——

The unit is equipped with a fully functional protection module, with the industry‘s most complete 13 kinds of safety protection

functions and powerful fault diagnosis function as follows:

Power phase loss, reverse phase protection;

Current overload protection;

Insufficient water flow protection;

Frost protection;

Pump overload protection;

Water pump linkage protection;

Fan motor overload protection;

Compressor exhaust pressure is too high protection;

Compressor return air pressure is too low protection;

Compressor exhaust temperature is too high protection;

Compressor intelligent scroll temperature protection;

Cooling operation cooling water temperature is too low protection;

Overheating protection of cooling water temperature in heating operation;

—— New Touch-wire Controller, Easy To Control The System ——

A set of wire controller can meet up to 16 modules parallel at the same time to achieve centralized control, and users can know the operation and fault state of the unit through the wire controller in time.

—— Ultra-low Temperature And Wide Temperature Working Conditions Operation ——

    

The reliable operating range of  Withair series module unit is -26℃~48℃, when ambient temperature at -26℃,

unit still can be strong heating, which can realize the stable operation under the wide temperature range of -26℃~48℃.

—— The Key Advantages Include ——

● ECO friendly refrigerant R410a, R407c.

● Flexible configurations with top or side piping and  front or side control box.

● Large panels for accessibility to compressor and controls sections

● Plate type, coaxial tube-in-tube heat exchanger for high performance, reliability, and resistance to freezing.

● Multi-function: provide cooling only, cooling with hot water, partial heat recovery for domestic hot water heating (55℃).

● Unit choose efficient rotary or scroll compressor, the use of high efficient heat exchanger technology processing, condensation temperature greatly reduced.

● When multiple units were combined into a system, because each unit can be individually ON/OFF; wide range of system energy regulation and running costs fell by more 40%.

● Unique compressor anti-vibration technology (patent ZL 2020 2 0246589.1) and sound attenuation material ensure ultra-quiet performance.

● Advanced microcomputer automatic control system, with protection of high and low pressure, overload, low voltage, phase lack, and low temperature etc., with terminal for the external pumps, and displays and alarms malfunction.

● Running ambient range from -20℃ to 50℃.

● Built-in hydraulic module for option.

● Multi-system design and wear-and-tear management technology reduces electric impulse and extend service life.

● Modular network function: unit control system is equipped with the network communication, the user can control operating units quantity according to the actual use load, make user side water system utilities, to realize the automatic device management automation and energy management.

● Smart microchip control and large LCD user interface, capable of one-key startup.

● Automatic intelligent reset. Unit shall automatically restart 5 minutes after shutdown if the fault has cleared. Should a fault occur 3 times sequentially, then lockout will occur.

● Humanized design, widened application scope: the unit’s temperature settings for room, hot water, water intake/outlet, freeze protection, and compressor exhaust can be adjusted on-site according to environmental conditions.

● Communication adapter connection the unit to BMS(Building Management System) is an optional accessory, please get in touch with us or our distributor if required.

● Unit with multi-protection to guarantee the unit running stability and security, such as: high/low voltage, low oil level protection, exhaust temperature, antifreeze, power lack/reverse phase, water system cut off. operating condition with small change range stable operation, safe, reliable and long service life.

● Easy installation,  simple water piping system configuration, you can make design partition and divide second installation.

● Quality components selection

   Compressors and refrigeration accessories (such as dry filter, thermal expansion valve, liquid supply solenoid, liquid level mirror, high/low pressure control devices) all chosen world-renowned brand products to ensure that the unit reached an excellent level of performance. Using the most advanced DAE / DAC efficient heat transfer pipe, heat transfer surface with internal ribbed tube makes the heat transfer coefficient substantially increased; the heat exchanger unique structural design, the best way of copper tube layout and precision of refrigerant control technology, greatly improved the efficiency of heat transfer.

● Perfect control

     1) Computerized control with standby manual operation system

     2) Compressor Operation timing

     3) Compressor automatic start-up sequence,

     4) Alarm signals

     5) Alarm reset

     6) Water temperature control

     7) Manual reset high pressure switch, Automatic reset low pressure switch

● Equipped self-diagnosis function, and automatically eliminate software problem

● Protections that ensure its safe and stable operation:

1) Reverse phase

2) Lack phase

3) High/low pressure

4) Gas discharge

5) Outlet water temperature too low (high)

6) Water stopped

7) Antifreeze

8) Compressor overheat etc.

● All the components covered with casing, keeps damages to cooling and electrical system away.

● Small size, light weight, easy for installation, transfer and maintenance, can be put into use just make water pipes and the power supply cable be connected at the site.

● EVI compressor as option. EVI compressor-enhanced vapor injection, Vapor-injected method can effectively improve heat capacity, prevent higher discharge temperature of compressor and guarantee operating stability of unit at low temperature). 

● STRUCTURE

      Panels and frame are made from galvanized steel protected with polyester powder painting to ensure total resistance  

      to atmospheric agents.

● HERMETIC SCROLL COMPRESSORS

      Single phase type and 3-phase scroll type compressors, with built-in thermal overload cut-out and crankcase heater, mounted on rubber vibration dampers.

● EVAPORATOR & CONDENSER

      High efficiency plate type heat exchanger, tube in tube heat exchanger, shell and tube heat exchanger, factory-insulated with flexible close cell material.

● REFRIGERANT CIRCUIT

      Copper tube connection with charge valves, filter, thermostatic expansion valve, gas-liquid separator, high pressure switch and low pressure switch. The heat pump units are complete also with 4-way valve and one way valve.

● HYDRAULIC CIRCUIT

      No build in water circuit as standard.

● ELECTRIC PANEL

      Consists of: Compressor contactor, Compressor protection breaker, Microprocessor with function display.

● OPTIONAL PARTS

Source side water flow switch, source side water pump, & user side water flow switch, user side water pump,  hot water pump

Expansion tank

Metallic filter for the water circuit

Build in water circuit

Modular type

Heat recovery for domestic hot water (55℃)

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● 100% test before deliverying products.

● Tracking number will be sent to customer as soon as we ship the products.

● Item shipped in 25 working days against payment depends on the quantity.

● Four steps of pakacges, plastic film, foam, carton and plywood for stable transporation.

Withair® provides two styles package for different transporation modes:

(1). Standard package(free of charge): unit is wrapped with plastic film, which is suitable for container shipment & a few transshipment cargo;

  
(2). Special package(extra charge): unit is wrapped with plastic film and wooded box, which is suitable for bulk cargo transporation;