K3 3.2kW Recirculating Chiller
The K3 Recirculating Chiller has been developed for more demanding process cooling applications where higher cooling capacity and continuous operation are required. Delivering 3.2kW of cooling with ±0.1°C temperature stability, the K3 provides reliable temperature control for industrial equipment, manufacturing processes, and OEM systems.
The H03 recirculating chiller is the recommended low-GWP successor, offering a modern platform with enhanced sustainability and long-term product support.
Key Features
3.2kW cooling capacity
±0.1°C temperature stability
Industrial powder-coated steel construction
Optional RS485 communications and volt-free contacts
Comprehensive safety interlocks and process protection
Designed for demanding laboratory, OEM, and industrial applications
Enclosure Size
713 x 550 x 540mm
Power Supply Options
(230Vac, 1~, 50Hz) 0-spec
(208-230Vac, 1~/2~, 50/60Hz) 9-spec
(208-230Vac, 1~/2~, 50/60Hz) 9-spec
Cooling Capacity
3.2kW Cooling Capacity at 20°C
+/- 0.1°C Temperature Stability
+/- 0.1°C Temperature Stability
Temperature Range
+4°C to +35°C
Document downloads
K3
3.2kW
Administrative Data
ATC Model Name
K3
ATC H-Series Equivalent
H03
Physical Attributes
Physical Dimensions (mm)
H713 x W550 x D540mm
Construction
Sheet steel gauge 1.5mm
Epoxy polyester powder coated
Epoxy polyester powder coated
Mounting Type
Castors, 2 swivel, 2 braked (standard)
Acceptable Environment
Indoor (Standard)
Dry Weight (kg)
82kg
Wet Weight (kg)
85kg
Noise Level (dB(A)) at 1 metre
68dB(A)
Product IP Rating
IP20
Toolless Access
No
Enclosure Drawing Number
MA165
Airfreight
Ok
Sea freight
Ok
Temperature Control Attributes
Cooling/Refrigeration Technology
Vapour Compression
Compressor Type
Fixed Speed Recip.
Evaporator Technology
Brazed plate heat exchanger
Duty at +20°C ambient, Setpoint +20°C (kW)
3.2kW
Refrigerant & Charge
R407C, 1.1kg
Ambient Temperature Range (Standard)
+4°C to +20°C
Ambient Temperature Range (Extended)
+4°C to +35°C
Temperature Stability (with Constant Load)
±0.1°C
Temperature Resolution
±0.1°C
Water Circuit Attributes
Designed Process Fluid Flowrate
10-17L/m (0.6-1m³/h)
Designed Pressure
0-8bar (0-116psi)
Process Temperature Range (Standard)
+4°C to +35°C
Process Temperature Range (Extended Low Temp)
-20°C
Process Temperature Range (Extended HighTemp)
+60°C
Maximum Return Line Temperature (Standard)
+60°C
Pump Options
P10, P17
System Volume
3.5L
Tank Type
Stainless steel, header
Flow and Pressure Control
Internal, PRV, 20-150psi
Connection Size *Fittings to convert size as needed available
1/2″ BSPPF
Construction Materials
Steel enclosure
Fluid Compatibility
Hexid Fluid (Propylene Glycol)
Coolflow (Ethylene Glycol)
Coolflow (Ethylene Glycol)
Electrical Attributes
(230Vac, 1~, 50Hz) 0-spec
Available, 13A
(208-230Vac, 1~/2~, 50/60Hz) 9-spec
Available
Safety Interlocks, Protections, Standards, and Indicators
1st Party Approvals
CE
Empty Fluid Reservoir Alarm
Process Stop Interlock
Low Fluid Flow Alarm
Visual, Lamp
Temperature Out of Range Alarm
Visual, Lamp
RS485 Comms
Available, SA00011
Volt-Free Contacts (Temp, Level, Flow)
Available, SA00012
Compressor HP Switch
Standard
Interlock Restored, Restart Mode
Manual
Overcurrent Fault-Cleared Restart Mode
Manual
Overcurrent Protection
Variable, Via thermal magnetic overload
Motor Thermal Overload
Internal, automatic restart
Warranty Options
2 years parts, one year labour
Configurations
Water-Cooled
Available, K3xxxx9W
