Heavy Duty DC Inverter Chiller
RKE-B (74.4 to 96.0 kW)
Energy-Saving Specs are Top Class in the World! Introducing the RKE-B Series Top-Class Models


Cooling Capacity
74.4 to 96.0 kW (Air Cooled)
Operable Ambient Temperature Range
20 to 45 °C (Air Cooled)
Operable Liquid Temperature Range
3 to 35 °C
Temperature Control Precision
  • TESC
    TESC Built-In!
    Three Eco Speed Control offers highest level of eco-operation that meet your needs.
  • Compressor Speed Control
    DC Inverter Drive with Automatic Optimized Operation Judgment
  • Fan Speed Control
    Automatic Optimized Operation Judgment from the Inverter
  • Pump Speed Control
    Operates at the minimum speed needed to achieve the required flow rate, and reduces wasted water flow.
As many as 4 units can be connected.


Units can be Linked for Max. 384 kW

Units can be linked together for heavy-load cooling facilities. Up to 4 units can be linked together so you can choose a capacity level to meet your demands.

HP Cooling Capacity
30 74 1 -
40 96 - 1
60 148 2 -
80 192 - 2
100 244 2 1
120 288 - 3
160 384 - 4
Energy Saving

Reduced Energy Consumption Thanks to our DC inverter Drive Compressor

22000 Model 23.9 kW comparison 48% down 30000 Model 37.2 kW comparison 26% down
Low Operating Noise

Operating noise of just 65 dB with our low-noise fan and compressor-noise-prevention cover.

22000 Model 63 dB comparison 8 dB down / 30000 Model 64 dB comparison 8 dB down
Pump is also Inverter Driven
In addition to the compress or and fan,
the pump is also inverter driven.

Being able to achieve just the required flow rate eliminates waste, even without bypass-valve control.

Inverter Driven
The pump control method can be selected.

In addition to setting the operating frequency, setting the flow rate or the water pressure based on an estimated flow rate standard is also possible. Operation possible at the optimum flow rate or pressure in accordance with the load.

Intelligent Touch Panel

Settings and operating conditions can be visually and intuitively checked and operated via the touch panel controller.
The displayed language can be changed to English or Chinese.

Intelligent Touch Panel

Graph Screen

Graph Screen

Touching the "Measured Liquid Temp" button will change the display to the Graph screen where changes in liquid temperature will be graphed over a particular time period (up to 53 hours) in order to better aid in liquid temperature management.

Operating Rate (Power Indicator)

Power Indicator

The compressor operating state is indicated on a 10 level bar graph which shows the level of energy saving at a glance. Touching the "Operating Rate" button brings up the Monitor screen where operating conditions can be easily checked.

Measured Pressure

Touching "Measured Pressure" brings up a screen where the flow rate setting can easily be changed.


Touching "Menu" allows easy setting and confirmation of various parameters, error history, accumulated running time of primary components, timer functions, etc.

Timer Setting

Touch the "0:00:00" start time allows setting of designated start/stop settings. Actions can be repeated or set according to the day.

Easy Maintenance and Alarm Display

Easy Maintenance and Alarm Display

Alarm numbers are displayed when alarm conditions occur.
Touching the "Details" button will bring up further details about the alarm and information on what measures to take.

The display language can be changed.


Operation and Monitoring Via PC or Sequencer Possible

Communications functions can be utilized through a control program to match your specific application.

Communications Method

USB: 1 Unit, RS-422A: 32 Units, RS-485: 32 Units

Items that can be controlled via PC:
  • Starting and stopping of individual chiller units.
  • Individual operation of chiller discharge pumps.
  • Liquid temperature control of individual chillers.
Communications Functions

Detailed display functions enable quick recovery!

  • Inspection Warnings
  • Liquid Temperature Warnings
  • Water Pressure
  • Refrigeration Circuit
  • Inverter, Etc.


  RKE22000B-V RKE30000B-V
Cooling Capacity kW 74.4 96.0
Chilled Water Operable Ambient Temperature Range –20 to 45
Control Precision ±0.1
Operable Liquid Temperature Range 3 to 35 (0 to 35 when using brine)
Operable Pressure Range MPa 0.08 to 0.80
Operable Flow Rate Range L/min 200 to 460
Voltage (50/60 Hz) V 200 to 220
Water Tank Capacity L Approx. 250
External Dimensions (HxDxW) mm 2190×1340×2150
Product Mass (Water tank empty) kg 1050 1065