H12 12kW Recirculating Chiller
Designed for maximum performance, the H12 delivers powerful, precise cooling for high-load industrial systems and large-scale processes.
The H12 is a high-capacity recirculating chiller engineered for large-scale industrial and process applications requiring maximum cooling performance and reliability.
Utilising vapour compression technology with a brazed plate heat exchanger, the unit delivers consistent, efficient cooling across a wide operating range.
With high airflow, large cooling capacity, and flexible pump configurations, the H12 is designed to support demanding systems where uptime, stability, and scalability are critical.
Key Features
Precise temperature control (±0.1°C) – Ensures consistent and repeatable process performance
High airflow cooling system – Enables efficient heat rejection for demanding environments
Low GWP refrigerant (R454C) – Supports the transition to more sustainable industrial cooling solutions
Flexible flow and pump options – Supports complex system requirements with flow rates up to 80L/min
Integrated communications as standard – Includes RS485 communication for remote setpoint adjustment and volt-free contacts for alarm signals and remote monitoring
Enclosure Size
Height 1180mm
Width 904mm
Depth 610mm
Width 904mm
Depth 610mm
Temperature Range
+4°C to +35°C (standard),
-20°C to +60°C (optional)
-20°C to +60°C (optional)
Pump Options
10-80L/m (0.6-4.8m³3/h)
Power Options
(400Vac, 3~, 50Hz) 3-spec;
(460Vac, 3~, 60Hz) 4-spec;
(460Vac, 3~, 60Hz) 4-spec;
Document downloads
H12 Recirculating Chiller
12kW
Administrative Data
ATC Model Name
H12
ATC K-Series Equivalent
K9/K12
Physical Attributes
Physical dimensions (mm)
Height 1180mm
Width 904mm
Depth 610mm
Width 904mm
Depth 610mm
Construction
Sheet steel gauge 1.5mm.
Powder coated
Powder coated
Mounting Type
Castors, 2 swivel, 2 braked (standard)
Acceptable Environment
Indoors (standard)
Dry Weight (kg)
156kg
Wet Weight (kg)
167kg
Noise Level (dB(A)) at 1 meter
92dB
Product IP Rating
IP20
Toolless Access
No
Enclosure Drawing Number
MA882
Airfreight
Send without refrigerant
Sea Freight
Send Charged
Temperature Control Attributes
Cooling/Refrigeration Technology
Vapour Compression
Compressor Type
Fixed Speed Scroll
Evaporator Technology
Brazed plate heat exchanger (BPHE)
Duty at +20°C ambient, Setpoint +20°C (kW)
12kW
Duty at +30°C ambient, Setpoint +20°C (kW)
9.5kW
Refrigerant u0026 Charge
R454C, 2.23kg
Ambient temperature range (standard)
+4°C to +20°C
Ambient temperature range (extended)
+4°C to +35°C
Control Method
PID
Temperature Stability (with constant load)
±0.1°C
Temperature resolution
±0.1˚C
Maximum Total Heat Rejection
18kW
Cooling Fan Airflow
4,994CFM (8,400m³/h)
Water Circuit Attributes
Designed Nominal Process Fluid Flowrate
10-80L/m (0.6-4.8m³3/h)
Design Nominal Pressure
(0-58psi) 0-4bar
Process Temperature Range (Standard)
+4 to +35°C
Process Temperature Range (Extended Low Temp)
-20°C
Process Temperature Range (Extended High Temp)
+80°C
Maximum Return Line Temperature (Standard)
+60°C
Maximum Return Line Temperature (Extended)
+80°C
Pump Options
P10, P17, P25, P40, P80
Visible Level Indicator
Yes
Integrated Drain
No
System Volume
11L
Tank Type
Stainless steel, flow-through
Flow and Pressure Control
Internal, PRV, 20-150psi (P10/P17 only)
Connection Size (fittings to convert size as needed available)
1/2″ BSPPF (P10/P17)
1″ BSPPF (P25/P40/P80)
1″ BSPPF (P25/P40/P80)
Construction Materials
Steel enclosure
Fluid Compatibility
Hexid Fluid, Sterile Water, Propylene Glycol, DI water
Electrical Attributes
(400Vac, 3~, 50Hz) 3-spec
Available (8.6A)
(460Vac, 3~, 60Hz) 4-spec
Available
Safety Interlocks, Protections, Standards, and Indicators
1st Party Approvals
CE, UKCA
3rd Party Approvals
Not available
Empty Fluid Reservoir Alarm
Process stop interlock
Low Fluid Flow Alarm
Visual, lamp
Temperature Out of Range Alarm
Visual, lamp
Compressor HP Switch
High
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 year parts, 1 year labourrnEnhanced warranty options
