K4, K6, K9 and K12 Industrial Chiller Range

Our K4, K6, K9 and K12 coolers are powerful laboratory chillers with precision cooling performance. They are built to order to our customers’ requirements and designed for use with applications in laboratory and industrial manufacturing processes. We are trusted chiller experts and have experience supplying chillers from 1600 BTU (480W) through to 51100 BTU (15kW) cooling capacity. Offering expert, consultative advice with free technical support from our experienced engineers, research and development team.

Our precision chillers benefit from a compact design with a small foot print, they can be easily moved on casters between applications if required. With a surface mounted fan, this range of coolers can effortlessly be stored on or beneath a bench.

Offering great reliability and accurate temperature stability the ATC range of chillers are quiet in operation and available with a range of pumps and standard options to suit your needs. Each chiller is specifically designed and manufactured to suit each customers requirement. We have experience in working with food manufacturers, cosmetics producers, scientific instrument support markets (electron microscopes, X-ray diffraction, ICPMS etc.), semiconductor process, breweries, ophthalmic lens manufacturing equipment, induction heating, and more recently the chillers of choice for commercial digital printing and laser lithography markets worldwide.

With a resilient self-contained design, supporting research and applications that are “always on” ATC chillers offer great reliability with up to 51100 BTU (15kW) cooling capacity. Available as UL-CSA compliant via ETL Mark option on both indoor and chillers with a housing for outdoor use.

Working with our international customers, our chillers have a variable power supply allowing for easy change of voltage or frequency supply from one region to another at a flick of a switch. Our service is supported by an extensive network of trusted partners and skilled service agents to assist our global clients.

ATC's higher cooling capacity chillers offer reliable cooling from 15300 BTU (4.5kW) to 47700 BTU (14kW). The four sizes are available in a full range of configurations and can be tailored to your requirements.

Please contact your local distributor to discuss your chiller requirements

K4 Chiller

The K4 chiller offers 15300 BTU (4.5kW) of cooling in a versatile package. A full range of options and voltage variants are available, to customize the K4 unit.

15300 BTU (4.5kW) cooling capacity (at 17⁰C set point)
Permissible temperature in return line +70⁰C
Versatile design, allowing for many standard and non-standard options ·
Plastic molded bath tanks, suitable for DI and nonferrous applications
Easy filling from the top with tool-less entry panel and simple cap
Splash proof keypad and mains switch
Reliable microprocessor PID temperature control
Vents are located on all faces for flexible installation
Pressure gauge
Internal by pass valve to adjust pump pressure, as standard
Optional RS485 interface for PC connection
Optional alarm output, potential free change over contact (maximum 30 VA)

K6 Chiller

The K6 chiller provides total control of temperature to 20400 BTU (6.0kW) of cooling, with a full range of accessories. ·

20400 BTU (6.0kW) of cooling (at 17⁰C set point)
Dependable workhorse equipment
Available with standard and optional accessories
Permissible temperature in return line +70⁰C
Versatile design, allowing for many standard and non-standard options ·
Plastic molded bath tanks, suitable for DI and nonferrous applications
Easy filling from the top with tool-less entry panel and simple cap
Splash proof keypad and mains switch
Reliable microprocessor PID temperature control
Vents are located on all faces for flexible installation
Pressure gauge
Internal by pass valve to adjust pump pressure, as standard
Optional RS485 interface for PC connection
Optional alarm output, potential free change over contact (maximum 30 VA)

K9 Chiller

A powerful chiller offering 30700 BTU (9.0kW) of cooling in a versatile package. A full range of options and voltage variants are available to create a bespoke chiller with exceptionally high cooling capacity.

Exceptionally high 30700 BTU (9.0kW) cooling capacity (at 17⁰C set point)
Compact space saving design
Versatile design, allowing for standard and non-standard options
Easy filling from the top with tool-less entry panel and simple cap
Permissible temperature in return line +70⁰C
Plastic molded bath tanks, suitable for DI and nonferrous applications
Low liquid level protection with an optical and audible alarm signal
Simple operation and an ergonomic design
Pressure gauge
Internal by pass valve to adjust pump pressure, as standard
Large bright LED display
Splash proof keypad and mains switch
Reliable microprocessor PID temperature control
Vents are located on all faces for flexible installation
Easy filling from the top with tool less entry panel and simple cap
Optional alarm output, potential free change over contact (maximum 30 VA)
Optional RS-485 communications pack, Modbus protocol

K12 Chiller

K12 A versatile precision chiller, offering an exceptionally high 47700 BTU (14.0kW) of cooling in a compact design. ·

Exceptionally high 47700 BTU (14.0kW) cooling capacity (at 17⁰C set point)
Compact space saving design
Totally reliable workhorse
Simple operation and an ergonomic design Large bright LED display
Standalone filling level indicator, easy to access and change
Splash proof keypad with integrated mains switch
Reliable microprocessor PID temperature control
Vents are located on all faces for flexible installation
Pressure gauge
Internal by pass valve to adjust pump pressure, as standard
Permissible temperature in return line +70⁰C
Plastic molded bath tanks, suitable for DI and nonferrous applications
Low liquid level protection with optical and audible alarm signal
Optional alarm output, potential free change over contact (maximum 30 VA)
Optional RS-485 communications pack, Modbus protocol

Instruction Manuals

K4, K6 and K9 Chiller Instruction Manual	Download PDF
K12 Chiller Instruction Manual	Download PDF

Download the full spec sheet here


Cooling capacity (setpoint 20°C, ambient 20°C)	K4/15300 BTU (4500W)	K6/20400 BTU (6000W)	K9/30700 BTU (9000W)	K12/47700 BTU (14000W)
Physical attributes
Physical dimensions (LxWxH) (mm)	775x510x850	775x510x850	775x510x850	775x510x1130
Weight (kg)	125	125	125	125
Noise level (dB(A))	68	68	85	85
Toolless access	Yes	Yes	Yes	Yes

Temperature control attributes
Technology	Vapour Compression	Vapour Compression	Vapour Compression	Vapour Compression
Temperature range (standard)	+4°C to +35°C	+4°C to +35°C	+4°C to +35°C	+4°C to +35°C
Control method	PID	PID	PID	PID
Temperature stability (with constant load)	±0.1°C	±0.1°C	±0.1°C	±0.2°C
Temperature resolution	0.1°C	0.1°C	0.1°C	0.1°C

Water circuit attributes
System volume (L)	5	5	5.25	5.5
Pump type	1) 5L/min Rotary vane (PD)	1) 5L/min Rotary vane (PD)	1) 5L/min Rotary vane (PD)	1) 5L/min Rotary vane (PD)
	2) 10L/min Rotary vane (PD)	2) 10L/min Rotary vane (PD)	2) 10L/min Rotary vane (PD)	2) 10L/min Rotary vane (PD)
	3) 17L/min Rotary vane (PD)	3) 17/min Rotary vane (PD)	3) 17/min Rotary vane (PD)	3) 17/min Rotary vane (PD)
	4) 25L/min Centrifugal	4) 25L/min Centrifugal	4) 25L/min Centrifugal	4) 25L/min Centrifugal
Pump capability	1) 6bar@5L/min	1) 6bar@5L/min	1) 6bar@5L/min	1) 6bar@5L/min
	2) 6bar@10L/min	2) 6bar@10L/min	2) 6bar@10L/min	2) 6bar@10L/min
	3) 6bar@17L/min	3) 6bar@17L/min	3) 6bar@17L/min	3) 6bar@17L/min
	4) 4bar@25L/min	4) 4bar@25L/min	4) 4bar@25L/min	4) 4bar@25L/min
Pressure control (settable pressure relief valve)	Internal, PRV, 20-150psi*not on centrifugal pump	Internal, PRV, 20-150psi*not on centrifugal pump	Internal, PRV, 20-150psi*not on centrifugal pump	Internal, PRV, 20-150psi*not on centrifugal pump
Standard fittings	1/2" Female + 3/4" Male	1/2" Female + 3/4" Male	1/2" Female + 3/4" Male	1/2" Female + 3/4" Male
	3/8" + 1/2" hose barbs	3/8" + 1/2" hose barbs	3/8" + 1/2" hose barbs	3/8" + 1/2" hose barbs
Standard chemical compatibility	Hexid Fluid, Water, Propylene Glycol	Hexid Fluid, Water, Propylene Glycol	Hexid Fluid, Water, Propylene Glycol	Hexid Fluid, Water, Propylene Glycol

Electrical attributes
Option 1	1Ø, 230V, 50Hz, 13A	1Ø, 230V, 50Hz, 13A	1Ø, 230V, 50Hz, 20A	3Ø, 208V, 60Hz, 17A
Option 2	3Ø, 380-420V, 50/60Hz, 6.5A	1Ø, 208-220V, 60Hz, 11A	3Ø, 208V, 60Hz, 17.5A	3Ø, 380-420V, 50/60Hz, 12A
Option 3	Switchable (see below)	3Ø, 208V, 60Hz, 7.5A	3Ø, 380-420V, 50/60Hz, 10A	Switchable (see below)
Option 4		3Ø, 380-420V, 50/60Hz, 5A
Option 5		Switchable (see below)
Switchable configuration 1Ø, 115V/60Hz, 220V/60Hz, 230V/50Hz
Switchable configuration 1Ø, 208V/60Hz, 220V/60Hz, 230V/50Hz	Yes	Yes	No	No

Safety and fault indicator
Over-current restart mode	Specify manual/automatic	Specify manual/automatic	Specify manual/automatic	Specify manual/automatic
Empty fluid reservoir alarm	Safety interlock	Safety interlock	Safety interlock	Safety interlock
Low fluid flow alarm	N/A	N/A	N/A	N/A
Temperature out of range alarm	N/A	N/A	N/A	N/A
Compressor HP switch	Standard	Standard	Standard	Standard
Motor thermal overload	Standard	Standard	Standard	Standard
Emergency off	Standard, via contactor	Standard, via contactor	Standard, via contactor	Standard, via contactor
Warranty options	2 year parts, 1 year labour	2 year parts, 1 year labour	2 year parts, 1 year labour	2 year parts, 1 year labour
	Enhanced warranty options	Enhanced warranty options	Enhanced warranty options	Enhanced warranty options

Options available
Remote alarm/power-off; SA00001	Available	Available	Available	Available
Low temperature pack; SA00002	Available, to -20°C	Available, to -20°C	Available, to -20°C	Available, to -20°C
High temperature pack; SA00003	Available, to +80°C	Available, to +80°C	Available, to +80°C	Available, to +80°C
Water cooled KT; SA00004	N/A	N/A	N/A	N/A
Water cooled K1; SA00005	N/A	N/A	N/A	N/A
Water cooled K4/K6/K9/K12; SA00006	Available	Available	Available	Available
Water cooled K3 SA00007	N/A	N/A	N/A	N/A
Non-return solenoid pack; SA00008	Available	Available	Available	Available
Low flow alarm (KT); SA00010	Available	Available	Available	Available
Onboard RS485 data protocol; SA00011	Available	Available	Available	Available
In-line Deionising cartridge and fittings; SA00013	Available	Available	Available	Available
Castors to replace rubber feet; SA00015	Standard	Standard	Standard	Standard
CPC quick release connectors; SA00016	Available	Available	Available	Available
Installation kit; SA00017	Available	Available	Available	Available
UL approved version	Available	Available	Available	Available
DI water compatible	Available	Available	Available	Available
High ambient pack	Available, to +45°C	Available, to +45°C	Available, to +45°C	Available, to +45°C
Outdoor pack	Available, to IP54	Available, to IP54	Available, to IP54	Available, to IP54
Shelter pack	Available	Available	Available	Available
Service contract	Available	Available	Available	Available
Filter on outlet/inlet	Available	Available	Available	Available
Flow meter pack SA……..	Available	Available	Available	Available
Stainless enclosure	Available	Available	Available	Available

Please contact us for further details on this chiller range.

Remote Alarm Box

The compact remote alarm supplied by Applied Thermal Control is sited close to the application, allowing personnel to monitor the chiller, without needing to see the chiller. The display indicates normal operation, or shows alarms for temperature and fluid (both flow and level). An audible siren also sounds in an alarm condition. The alarm box can be mounted up to 15 metres away from the chiller, and is fitted with an emergency stop switch that will turn off the chiller should it be necessary.

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Low Temperature Pack

This low temperature option can be fitted to allow a chiller to be operated below +4°C and to be controlled down to -15°C.

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Heater Pack

The normal upper limit of the process temperature is 35°C. It is possible to raise this up to 65°C by means of a heater pack (higher temperatures can be achieved, following discussion with an ATC salesperson). Heater packs are typically installed into chiller systems where it is necessary to maintain a specific temperature range, and the cooling capacity of the chiller alone is not sufficient to achieve the desired range.

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Water-Cooled Condensers

Water-cooled condensers are commonly used in chillers to remove heat from the refrigerant and transfer it into a primary cooling circuit. In a recirculating chiller system, the refrigerant absorbs heat from the process or space, and transfers it to the water-cooled condenser.

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Non Return / Solenoid Valve

The non-return/solenoid option can be fitted to prevent back siphoning of fluid into the chiller during maintenance.

They are recommended when the chiller and application are at different levels (more than 2 metres height difference), or where a long length of flexible tubing is used between the chiller and the application. It is also advisable to add non-return/solenoid valves in situations where pipe-runs will be going up into ceiling ducts.

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Low Flow Alarm

Low flow alarms are a type of warning system that is designed to alert operators or maintenance personnel when the flow of heat transfer fluid through process cooling equipment falls below a certain level. The purpose of these alarms is to help to prevent damage to the equipment and other connected applications by ensuring that adequate heat transfer fluid flow is maintained.

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Quick Release Connectors

All ATC chillers can be fitted with self-sealing quick release fluid connectors allowing a quick and easy chiller exchange.

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Installation Kit

Reinforced black 1/2" tubing and fittings to connect the chiller to an application.

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RS 485 Comms

RS485 is a serial communication protocol that is commonly used in industrial applications. It is designed to allow multiple devices to communicate with each other over a single communication line, using differential signalling to improve noise immunity and reliability. RS-485 allows you to connect your cooler, through the controller to your application allowing you to change set point and monitor alarms.

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