LabTech H Series Recirculating Water Chillers

Category Chillers
Manufacturer LabTech
Country of manufacture China
Average customer rating based on 2 reviews

Combining operational excellence and technology expertise with an intimate understanding of customer's need, LabTech offers a complete line of recirculating water chillers with CE marks. These state-of-the-art water chillers ensure accurate and constant cooling conditions for instrumentation in the harsh environment of the laboratory.

With PID temperature control, the H series water recirculating chillers have better temperature control, greater energy efficiency, and longer compressor life time.

Technical Features:

  • High Energy Efficiency - “Hot gas bypss” technology routes back the hot, uncondensed refrigerant through a reservoir coil, thus eliminating on/off cycling of compressors and the addition of energy-wasting heaters. This method ensures better temperature control and greater energy efficiency.
  • Accurate Temperature Control - P.I.D. is a dynamic temperature control technique through proportional, integrative and differential control.
  • High Quality and Long Lifespan - Reliable components and top materials evaluated by the strict quality control procedure make LabTech chillers more solid and durable.
  • High Performance and Quiet Operation - LabTech chillers, ensure quiet operations and low water consumption while providing rapid and powerful cooling ability.
  • Operation Safely and Environmental Friendly - Intelligent alarm functions ensure safe working condition for your instruments. The refrigerant of CFC-free R134A cryogen is compatible with international environmental standards.
  • Best Quality/Price Ratio in the Market
 Key Attributes 
Type Chillers
Incubation No
Refrigeration Yes
Temp Range (°C) -5 to 35
Capacity (L)  
Circulation External Only
Brand LabTech
MaxFlow Rate (l/min) 3.5, 12, 17
Temp Stability (°C) ±0.1℃, ±0.2℃, ±0.3℃
Timer No
Alarms Yes
Digital or Mechanical Digital
Data connection Yes
Tank Material N/A
Sample Agitation No
Media Racks Available No
Warranty (years) 1
Weight (lb) 62 to 386
Width (in) 28
Depth (in) 25
Height (in) 44


Manufacturer Specifications

H50 Series

Model H50-500
Part No. LW500
Temp. Range -5℃~35℃
Temp. Stability ±0.3℃
Temp. Control Mode PID
Cooling Capacity 500W
Pump Flow 3.5 L/min @ 10 psi
Pump Power 25W
Max. Pump Pressure 1 bar (14.5 psi)
Reservoir Volume 1.8 L
Heat Exchanged Mode BOARD
Dimensions (L×W×H) inch 19×8×19
Weight (Lbs) 62
Power Supply 110V,60Hz or 230V, 50Hz

 Smart H150 Series

Model H150-1000 H150-1500 H150-2100 H150-3000 H150-1000LT H150-2100LT
Part No. LW1000 LW1500 LW2100 LW3000 LW1000LT LW2100LT
Temp. Range 8℃~35℃ 8℃~35℃ 8℃~35℃ 8℃~35℃ -20℃~35℃ -20℃~35℃
Temp. Stability ±0.1℃ ±0.1℃ ±0.1℃ ±0.1℃ ±0.1℃ ±0.1℃
Temp. Control Mode PID PID PID PID PID PID
Cooling Capacity 1000W 1500W 2100W 3000W 1000W@25℃
Pump Flow 6.4 L/min @ 60 psi 6.4 L/min @ 60 psi 12.1 L/min @ 60 psi 12.1 L/min @ 60 psi 6.4 L/min @ 60 psi 12.1 L/min @ 60 psi
Pump Power 135W 545W 545W 545W 545W 545W
Max. Pump Pressure 4 bar (58.0 psi) 4 bar (58.0 psi) 4 bar (58.0 psi) 4 bar (58.0 psi) 4 bar (58.0 psi) 4 bar (58.0 psi)
Reservoir Volume 2.2 L 3.5 L 3.5 L 3.5 L 2.2 L 3.5 L
Dimensions (L×W×H) inch 22X15X21 27X15X23 29X18X26 29X18X26 560x360x590 740x460x700
Weight (Lbs) 112 172 203 203 51 92
Power Supply 110V,60Hz 230V or 50Hz 110V,60Hz 230V or 50Hz 230V, 50/60Hz 230V, 50/60Hz 230V, 50/60Hz 230V, 50/60Hz

What are the size of the inlet / outlet ports on the H Series chillers?

They are ½ pipe thread size (.84”O.D.) ports.


The H Series chillers list a maximum pump flow; is the pump flow adjustable?

All H Series Recirculating Chillers have a relief valve that can be used to adjust the unit’s operating pressure and flow rate. There is a pressure gauge built into the front of the instrument to read the relief valve setting. By releasing pressure through the relief valve, a lower flow rate can be achieved.


Is it okay to run an H Series chiller at maximum load and under continuous operation?

The H Series chillers are designed for continuous operation, but it is not recommended that you do so under maximum load. Likewise, running at maximum load is acceptable for non-continuous usage. Like any equipment, the more stress the unit experiences the shorter the lifespan will be, however running an H Series chiller continuously at max load leads to a high failure rate.


Are the H Series Recirculating Chillers UL listed or CSA certified?

Currently only the H50-500 is UL listed. None have CSA certification.


Do the H Series Recirculating Chillers have a low-level shutoff?

Yes. If the water level gets too low in the reservoir, they will automatically shut off.


How are the H Series Recirculating Chillers cooled? What is the refrigerant used?

The H Series Chillers are compressor cooled. The H50 and Smart H150 series both use R134A refrigerant. The H150 series uses R404A refrigerant.


The cooling capacities do not list corresponding temperatures. At what temperature is the cooling capacity given?

The cooling capacities are at 25°C unless otherwise stated.


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Customer reviews

based on 2 reviews