Refrigerated heating circulator HRHC series

for high temperatures

Application
The HRHC Series refrigerated circulator heater is an integrated heating/cooling circulator designed for accurate temperature rise and fall control of jacketed reactors and similar process equipment. The system uses a fully closed liquid cycle with a mechanically connected expansion vessel to protect the heat transfer medium across wide temperature ranges.

Features

• Integrated heating and cooling vessel with large heat-exchange area for fast temperature change and reduced oil volume.
• Continuous heating and cooling operation; compressor-based refrigeration enables rapid cooling from high temperatures.
• Closed-loop design prevents moisture ingress at low temperatures and oil mist at high temperatures, extending oil life.
• Multiple safety protections: self-diagnostic, freezer overload protection, high-pressure switch, overload relay, thermal and over-temperature protection.
• Adaptive PID temperature control that adjusts parameters based on multi-directional measurements (temperature, delta, rate of change).
• External and internal PT100 probe correction function for accurate sensing.
• Use of CFC/HCFC-free refrigerants.
• Precise control of chemical reaction rates via stable temperature regulation.
• Heating piping made from industrial seamless 304 stainless steel, 3.0 mm thickness.
• Reliable compressors and high-temperature-resistant circulation pumps for stable performance.
• Solid-state relays for quiet, spark-free long-life switching.
• Simultaneous display of set and actual temperatures with over-temperature alarm value.
• Efficient filling and draining design for circulating fluid.
• High-lift pump design and 304 stainless steel braided hoses for long-distance fluid transport.

Common specifications
Refrigeration: hermetic compressors
Circulation pump: enclosed non-leakage type
In/out nozzles: low inlet & high outlet configuration
Temperature control: microcomputer control, LCD with PID adaptive tuning
Safety: delay, leakage detection, over-current, over-heat protection
Body finish: anticorrosion plastic spray

80~100L models (typical)

• Models: HRHC-100-20 | HRHC-100-30 | HRHC-100-40
• Suitable jacketed reactor: 80–100 L
• Tank volume (L): 30
• Heating volume (L): 3
• Heating tank size (mm): Ø90×300 | Ø90×300 | Ø90×480
• Oil tank size (mm): 300×300×120 | 300×300×120 | 450×150×450
• Max temp. range (°C): -20 ~ +200 | -30 ~ +200 | -40 ~ +200
• No-load min temp. (°C): -20 | -32 | -42
• Power supply: 380V±10% 50Hz (other options available)
• Heating power (W): 12000
• Cooling power (W): 15700–3690 | 15700–3690 | 10280–2565
• Temperature control range: -100°C – 400°C
• Control accuracy: ±0.1°C
• Sensor: PT100
• Fluid viscosity limit: 500 C.S.T
• Circulating pump power (W): 280; head: 10 m; flow: 35 L/min; pressure: 4 MPa
• Refrigerant example: R404 (CFC/HCFC-free)
• Display resolution: 0.1°C
• Overall size (mm): 1070×800×1430 (example)
• Weight (kg): 158–165

Optional items

• HRHC0001: Alternative power supplies (3P-220V, 3P-480V, 110V)
• HRHC0002: Explosion-proof version
• HRHC0003: Heat-conductive oil supply
• HRHC0004: Double inlet/outlet configuration

Technical specifications

• Series: HRHC
• SKU: HRHC-Series
• Product type: High & Low Temperature Refrigerated Circulator Heater (integrated heating & cooling)
• Application: Temperature control for jacketed reactors and similar equipment
• Continuous usable range: system-dependent, typically from -95°C to +350°C
• Temperature accuracy: ±0.1°C; sensor: PT100
• Control: Microcomputer with LCD and PID adaptive tuning
• Fluid connections: 304 stainless steel hoses and piping; heating pipe seamless 304 SS, 3.0 mm
• Pumps/compressors: industrial-grade for high-temperature stability
• Safety: self-diagnostics, overloads, high-pressure switch, over-temperature protection
• Options: explosion-proof, alternate voltages, heat transfer oil, dual ports