K6 6kW Recirculating Chiller
The K6 Recirculating Chiller is designed for higher-capacity process cooling applications where reliable, continuous performance is critical. Providing 6.0kW of cooling capacity with ±0.1°C temperature stability, the K6 is ideal for demanding industrial processes, manufacturing equipment, and OEM systems.
As part of ATC’s transition to low-GWP refrigerants, the H05 and H06 are the recommended next-generation replacements, offering improved environmental performance, modern controls, and long-term product support.
Key Features
6.0kW cooling capacity
±0.1°C temperature stability
Optional RS485 communications and volt-free contacts
17L/min pump option
Three-phase 400Vac operation
Comprehensive safety interlocks and process protection
Designed for demanding industrial and OEM applications
Enclosure Size
850 X 510 X 775mm
Power Supply Options
(400Vac, 3~, 50Hz) 3-spec
Cooling Capacity
6kW Duty at +20°C ambient, Setpoint +20°C (kW)
Temperature Range
+4°C to +35°C
Document downloads
K6
6.0kW
Administrative Data
ATC Model Name
K6
ATC H-Series Equivalent
H05/H06
Physical Attributes
Physical Dimensions (mm)
H850 x W510 x D775mm
Construction
Sheet steel gauge 1.5mm
Epoxy polyester powder coat
Epoxy polyester powder coat
Mounting Type
Castors, 2 swivel, 2 braked (standard)
Acceptable Environment
Indoor (standard)
Dry Weight (kg)
140kg
Wet Weight (kg)
146kg
Noise Level (dB(A)) at 1 metre
68dB(A), standard fan
Product IP Rating
IP20
Toolless Access
No
Enclosure Drawing Number
MA097
Airfreight
Ok
Sea freight
Ok
Temperature Control Attributes
Cooling/Refrigeration Technology
Vapour Compression
Compressor Type
Fixed Speed Scroll
Evaporator Technology
Brazed plate heat exchanger
Duty at 20°C Ambient, Setpoint +20°C (kW)
6.0kW
Refrigerant & Charge
R407C, 2.3kg
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
17L/m (1m³3/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 High Temp)
+60°C
Maximum Return Line Temperature (Standard)
+60°C
Pump Options
P17
System Volume
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
(400Vac, 3~, 50Hz) 3-spec
Available. 5A
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
