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Laboratory Chillers and Recirculating Chillers 1050-3200W

Overview

K1 and K3 Chiller Range

Applied Thermal Control recirculating chillers are built to order to our customers’ requirements, they are designed for use with applications in laboratory, research and manufacturing processes. With over 20 years’ experience supplying chillers from 480W through to 15kW cooling capacity we offer expert, supportive and consultative pre-sales 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 or experiments and most of the range can effortlessly be stored on or beneath a bench.  Offering accurate temperature control to 0.1°C precision with a choice of recirculating chillers, water-to-water heat exchangers and air blast coolers.

Providing great reliability and consistent 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 robust design, supporting research and applications that are “always on” ATC chillers offer great reliability with up to 15kW cooling capacity. Available as UL-CSA compliant via ETL Mark option on both indoor and outdoor chillers.

The use of precision recirculating chillers can help to comply with organisational environmental policies.   By using accurately cooled house water, processes can be economical and environmentally friendly.

We supply worldwide, 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.  This is backed by an extensive network of trusted partners and skilled service agents to support our global customers. 

We can offer service contract options to support your chiller in use. With UK based factory trained emergency call out engineers who can assess and if necessary fix on site, minimising the need to return units to base for repair resulting in reduced application down time. 

Specifications
Download the full spec sheet here
         
Cooling capacity
(setpoint 20°C, ambient 20°C) 
K1/1750W K3/3200W 
Physical attributes        
Physical dimensions (LxWxH) (mm)    545 x 420 x 575   540 x 550 x 713
Weight (kg)   66   82
Noise level (dB(A))    68    68
Toolless access   no   No
          
Temperature control attributes        
Technology   Vapour Compression   Vapour Compression
Temperature range (standard)   +4°C to +35°C   +4°C to +35°C 
Control method   PID    PID 
Temperature stability (with constant load)   ±0.1°C   ±0.1°C
Temperature resolution    0.1°C   0.1°C
         
Water circuit attributes        
System volume (L)   2.5   3.5 
Pump type   1) 5L/min Rotary vane (PD)   1) 5L/min Rotary vane (PD)
    2) 10L/min Rotary vane (PD)   2) 10L/min Rotary vane (PD)
    3) 17L/min Rotary vane (PD)   3) 17L/min Rotary vane (PD)
Pump capability   1) 6bar@5L/min   1) 6bar@5L/min
    2) 6bar@10L/min   2) 6bar@10L/min 
    3) 6bar@17L/min   3) 6bar@17L/min 
Pressure control (settable pressure relief valve)   Internal, PRV, 20-150psi   Internal, PRV, 20-150psi 
Standard fittings   1/2" BSPPF   1/2" BSPPF
    3/8" + 1/2" hose barbs   3/8" + 1/2" hose barbs 
Standard chemical compatibility   Hexid Fluid, DI Water, Propylene Glycol   Hexid Fluid, DI Water, Propylene Glycol 
         
Electrical attributes        
Option 1   1Ø, 115V, 60Hz, 11.5A   1Ø, 230V, 50Hz, 13A 
Option 2   1Ø, 230V, 50Hz, 7.3A    (208-220Vac, 1/2, 60Hz) 2-spec, 13.5A
Option 3   (208-220Vac, 1/2, 60Hz) 2-spec, 8A
  Switchable (see below)
Option 4    Switchable (see below)    
Option 5        
Switchable configuration 1Ø, 115V/60Hz, 220V/60Hz, 230V/50Hz   Yes    
Switchable configuration 1Ø, 208V/60Hz, 220V/60Hz, 230V/50Hz   Yes   Yes
         
Safety and fault indicator        
1st party approvals   CE   CE
3rd party approvals   UL-OK on 9-spec
  UL-OK on 9-spec
Over-current restart mode   Manual   Manual
Interlock-restored restart mode   Automatic   Automatic
Empty fluid reservoir alarm   Visual, lamp    Visual, lamp 
Low fluid flow alarm   Visual, lamp   Visual, lamp 
Temperature out of range alarm   Visual, lamp   Visual, lamp 
Compressor HP switch   Standard   Standard 
Motor thermal overload   Standard   Standard 
Emergency off   Standard, via MCB    Standard, via MCB
Warranty options   2  year parts, 1 year labour   2  year parts, 1 year labour
    Enhanced warranty options   Enhanced warranty options 
         
Options available        
Remote alarm/power-off; SA00001   Available   Available 
Low temperature pack; SA00002   Available, to -20°C   Available, to -20°C
High temperature pack; SA00003   Available, to +65°C   Available, to +65°C 
Water cooled K1; SA00005   Available   N/A
Water cooled K3 SA00007   N/A   N/A
Non-return solenoid pack; SA00008   Available   Available
High temperature water circuit w/o header; SA00009   Available   Available
Low flow alarm (KT); SA00010   Standard   Standard
Onboard RS485 data protocol; SA00011   Available    Available
Standard VFC set; SA00012   Available
Available
In-line Deionising cartridge and fittings; SA00013   Available   Available
Stainless non-return solenoid valve; SA00014   Available   Available
CPC quick release connectors; SA00016   Available    Available
Installation kit; SA00017   Available   Available
Stainless steel pump and fittings; SA00018
  Standard
  Standard
Mod for outdoor use; SA00020
  Available, to IP54
  Available, to IP54
Particulate filter; SA00021
  Available
  Available
Flow meter pack; SA00022
  Available   Available
Fan speed control (on/off); SA00023
  Available   Available
Fan speed control (proportional); SA00024
  Available   Available
Flow meter pack output to RS485; SA00025
  Available   Available
Seismic mounts; SA00026
  Available   Available
In-line UV decontamination; SA00027
  Available   Available
Qwikfoot kit; SA00028
  Available   Available
Stainless enclosure; SA00029
  Available   Available
External manifold (2-way); SA00042
  Available
  Available
External manifold (10-way); SA00050
  Available   Available
High ambient pack   N/A   Available, to +45°C
Shelter pack Available   Available 
Filter on outlet/inlet   Available    Available 
         

Please contact us for further details on this chiller range.


K1 Chiller

The K1 chiller is a discreet design, quiet in operation and offers a full 1.75kW of cooling, with a range of accessories. Originally designed for use in a laboratory, these chillers can be customised for a specific application and are suitable for any indoor environment.   

  • Compact and robust design
  • Pressure gauge Internal by pass valve to adjust pump pressure, as standard
  • Optional RS485 interface for PC connection
  • Permissible temperature in return line +70⁰C 
  • Alarm output, potential free change over contact (maximum 30 VA)
  • Plastic moulded bath tanks, suitable for DI and nonferrous applications
  • Low liquid level protection with optical and audible alarm signal
  • The K1 has an exceptionally high 1.75kW cooling capacity 
  • Best used with Hexid heat transfer fluid  
  • K1 chillers are built to specification/order
  • Standalone filling level indicator, easy to access and change 
  • Simple operation and an ergonomic design
  • Large bright LED display
  • Splash proof keypad with integrated mains switch 
  • Reliable microprocessor PID temperature control
  • Vents are located on all faces for flexible installation
K3 Chiller

A full 3.2kW of cooling in a very compact and robust chiller. The chiller has a full range of optional accessories.

  • K3 chillers are built to specification/order
  • Hexid heat transfer fluid extends the life of recirculating chillers, prevents frost and protects against growth of damaging bacteria and algae
  • Designed for laboratory, but with a robust steel enclosure so can be deployed in almost any environment
  • Compact and robust design
  • K3 units can be customised to fit specific application
  • 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
  • Optional RS485 interface for PC connection
  • Permissible temperature in return line +70⁰C
  • Alarm output, potential free change over contact (maximum 30 VA)
  • Plastic moulded bath tanks, suitable for DI and nonferrous applications
  • Low liquid level protection with optical and audible alarm signal
Downloads

Instruction Manuals/Brochure

Precision Recirculating Chillers Brochure Download PDF 
K1 and K3 Chiller Instruction Manual Download PDF
Accessories
Distributors

K1 and K3 Chiller Range

Applied Thermal Control recirculating chillers are built to order to our customers’ requirements, they are designed for use with applications in laboratory, research and manufacturing processes. With over 20 years’ experience supplying chillers from 480W through to 15kW cooling capacity we offer expert, supportive and consultative pre-sales 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 or experiments and most of the range can effortlessly be stored on or beneath a bench.  Offering accurate temperature control to 0.1°C precision with a choice of recirculating chillers, water-to-water heat exchangers and air blast coolers.

Providing great reliability and consistent 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 robust design, supporting research and applications that are “always on” ATC chillers offer great reliability with up to 15kW cooling capacity. Available as UL-CSA compliant via ETL Mark option on both indoor and outdoor chillers.

The use of precision recirculating chillers can help to comply with organisational environmental policies.   By using accurately cooled house water, processes can be economical and environmentally friendly.

We supply worldwide, 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.  This is backed by an extensive network of trusted partners and skilled service agents to support our global customers. 

We can offer service contract options to support your chiller in use. With UK based factory trained emergency call out engineers who can assess and if necessary fix on site, minimising the need to return units to base for repair resulting in reduced application down time. 

The K1 chiller is a discreet design, quiet in operation and offers a full 1.75kW of cooling, with a range of accessories. Originally designed for use in a laboratory, these chillers can be customised for a specific application and are suitable for any indoor environment.   

  • Compact and robust design
  • Pressure gauge Internal by pass valve to adjust pump pressure, as standard
  • Optional RS485 interface for PC connection
  • Permissible temperature in return line +70⁰C 
  • Alarm output, potential free change over contact (maximum 30 VA)
  • Plastic moulded bath tanks, suitable for DI and nonferrous applications
  • Low liquid level protection with optical and audible alarm signal
  • The K1 has an exceptionally high 1.75kW cooling capacity 
  • Best used with Hexid heat transfer fluid  
  • K1 chillers are built to specification/order
  • Standalone filling level indicator, easy to access and change 
  • Simple operation and an ergonomic design
  • Large bright LED display
  • Splash proof keypad with integrated mains switch 
  • Reliable microprocessor PID temperature control
  • Vents are located on all faces for flexible installation

A full 3.2kW of cooling in a very compact and robust chiller. The chiller has a full range of optional accessories.

  • K3 chillers are built to specification/order
  • Hexid heat transfer fluid extends the life of recirculating chillers, prevents frost and protects against growth of damaging bacteria and algae
  • Designed for laboratory, but with a robust steel enclosure so can be deployed in almost any environment
  • Compact and robust design
  • K3 units can be customised to fit specific application
  • 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
  • Optional RS485 interface for PC connection
  • Permissible temperature in return line +70⁰C
  • Alarm output, potential free change over contact (maximum 30 VA)
  • Plastic moulded bath tanks, suitable for DI and nonferrous applications
  • Low liquid level protection with optical and audible alarm signal

Instruction Manuals/Brochure

Precision Recirculating Chillers Brochure Download PDF 
K1 and K3 Chiller Instruction Manual Download PDF
Download the full spec sheet here
         
Cooling capacity
(setpoint 20°C, ambient 20°C) 
K1/1750W K3/3200W 
Physical attributes        
Physical dimensions (LxWxH) (mm)    545 x 420 x 575   540 x 550 x 713
Weight (kg)   66   82
Noise level (dB(A))    68    68
Toolless access   no   No
          
Temperature control attributes        
Technology   Vapour Compression   Vapour Compression
Temperature range (standard)   +4°C to +35°C   +4°C to +35°C 
Control method   PID    PID 
Temperature stability (with constant load)   ±0.1°C   ±0.1°C
Temperature resolution    0.1°C   0.1°C
         
Water circuit attributes        
System volume (L)   2.5   3.5 
Pump type   1) 5L/min Rotary vane (PD)   1) 5L/min Rotary vane (PD)
    2) 10L/min Rotary vane (PD)   2) 10L/min Rotary vane (PD)
    3) 17L/min Rotary vane (PD)   3) 17L/min Rotary vane (PD)
Pump capability   1) 6bar@5L/min   1) 6bar@5L/min
    2) 6bar@10L/min   2) 6bar@10L/min 
    3) 6bar@17L/min   3) 6bar@17L/min 
Pressure control (settable pressure relief valve)   Internal, PRV, 20-150psi   Internal, PRV, 20-150psi 
Standard fittings   1/2" BSPPF   1/2" BSPPF
    3/8" + 1/2" hose barbs   3/8" + 1/2" hose barbs 
Standard chemical compatibility   Hexid Fluid, DI Water, Propylene Glycol   Hexid Fluid, DI Water, Propylene Glycol 
         
Electrical attributes        
Option 1   1Ø, 115V, 60Hz, 11.5A   1Ø, 230V, 50Hz, 13A 
Option 2   1Ø, 230V, 50Hz, 7.3A    (208-220Vac, 1/2, 60Hz) 2-spec, 13.5A
Option 3   (208-220Vac, 1/2, 60Hz) 2-spec, 8A
  Switchable (see below)
Option 4    Switchable (see below)    
Option 5        
Switchable configuration 1Ø, 115V/60Hz, 220V/60Hz, 230V/50Hz   Yes    
Switchable configuration 1Ø, 208V/60Hz, 220V/60Hz, 230V/50Hz   Yes   Yes
         
Safety and fault indicator        
1st party approvals   CE   CE
3rd party approvals   UL-OK on 9-spec
  UL-OK on 9-spec
Over-current restart mode   Manual   Manual
Interlock-restored restart mode   Automatic   Automatic
Empty fluid reservoir alarm   Visual, lamp    Visual, lamp 
Low fluid flow alarm   Visual, lamp   Visual, lamp 
Temperature out of range alarm   Visual, lamp   Visual, lamp 
Compressor HP switch   Standard   Standard 
Motor thermal overload   Standard   Standard 
Emergency off   Standard, via MCB    Standard, via MCB
Warranty options   2  year parts, 1 year labour   2  year parts, 1 year labour
    Enhanced warranty options   Enhanced warranty options 
         
Options available        
Remote alarm/power-off; SA00001   Available   Available 
Low temperature pack; SA00002   Available, to -20°C   Available, to -20°C
High temperature pack; SA00003   Available, to +65°C   Available, to +65°C 
Water cooled K1; SA00005   Available   N/A
Water cooled K3 SA00007   N/A   N/A
Non-return solenoid pack; SA00008   Available   Available
High temperature water circuit w/o header; SA00009   Available   Available
Low flow alarm (KT); SA00010   Standard   Standard
Onboard RS485 data protocol; SA00011   Available    Available
Standard VFC set; SA00012   Available
Available
In-line Deionising cartridge and fittings; SA00013   Available   Available
Stainless non-return solenoid valve; SA00014   Available   Available
CPC quick release connectors; SA00016   Available    Available
Installation kit; SA00017   Available   Available
Stainless steel pump and fittings; SA00018
  Standard
  Standard
Mod for outdoor use; SA00020
  Available, to IP54
  Available, to IP54
Particulate filter; SA00021
  Available
  Available
Flow meter pack; SA00022
  Available   Available
Fan speed control (on/off); SA00023
  Available   Available
Fan speed control (proportional); SA00024
  Available   Available
Flow meter pack output to RS485; SA00025
  Available   Available
Seismic mounts; SA00026
  Available   Available
In-line UV decontamination; SA00027
  Available   Available
Qwikfoot kit; SA00028
  Available   Available
Stainless enclosure; SA00029
  Available   Available
External manifold (2-way); SA00042
  Available
  Available
External manifold (10-way); SA00050
  Available   Available
High ambient pack   N/A   Available, to +45°C
Shelter pack Available   Available 
Filter on outlet/inlet   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.
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.
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.
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.
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.

Quick Release Connectors
All ATC chillers can be fitted with self-sealing quick release fluid connectors allowing a quick and easy chiller exchange. 
Installation Kit
Reinforced black 1/2" tubing and fittings to connect the chiller to an application. 
Castors – KT
Castors enhance mobility for large process cooling equipment, aiding in repositioning, maintenance, and space optimization. While most units include castors as standard, they're optional for the KT, W, and larger XF series models. Their inclusion reduces risks, eases movement, and improves facility layout flexibility.
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.  
In-line Deioniser
The optional in-line deioniser provides very high levels of purity in recirculating water.
Applied Thermal Control Ltd.
39 Hayhill Industrial Estate, Barrow upon Soar, Leicestershire, LE12 8LD.
Telephone: +44 (0) 1530 83 99 98
E-Mail: sales@app-therm.com
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