RKE-B (12.2 to 48.0 kW)
Heavy Duty DC Inverter Chiller
Energy-Saving Specs. are Top Class in the Industry!
RKE3750B-V(W) / RKE5500B-V(W) /
RKE7500B-V(W) / RKE11000B-V(W) /
RKE15000B-V(W)
- (W): Water Cooled
- Cooling Capacity
(50/60Hz) - 12.2 to 48.0 kW
(Air Cooled)
- Cooling Capacity
(50/60Hz) - 14.1 to 48.0 kW
(Water Cooled)
- Operable Ambient Temperature Range
- –20 to 45 °C (Air Cooled)
2 to 45 °C (Water Cooled)
- Operable Liquid Temperature Range
- 3 to 35 °C
- Temperature Control Precision
- ±0.1℃
- TESC Built In! Three Eco Speed Control offers the ultimate eco-operation!
Features
TESC (Three Eco Speed Control) Built In
The changes in the energy consumption rate follow changes in the load factor. Thanks to TESC being built into the RKE-B Series, it offers even further reductions in power consumption over previous models.
Compressor Speed Control
DC Inverter Drives with Automatic Optimized Operation Judgement.
Fan Speed Control
Automatic Optimized Operation Judgement from the Inverter.
Pump Speed Control
Operates at the minimum speed needed to achieve the required flow rate. Reduces water supply waste.
- The rate of power consumption is a value based on 100% being the RKL-3750V-C1 operating at its rated power consumption (7.6kW), at 60Hz, under the rated operating conditions.
Our units can maintain control at low loads that were previously difficult to work with and as the graph shows, even compared with previous inverter driven chillers, we've achieved energy savings!
Wide Operable Ambient Temperature Range
Can withstand summer temperatures up to 50℃ with our special-spec. Our chillers can also exhibit maximum performance in factory environmants where hot air flow tends to accumulate. In winter temperatures as low as -20℃, you can count on our air cooled models continuing to perform, even in outside installations.
- -20℃: When setting antifleeze operating mode.
Wide Operable Liquid Temperature Range
Can withstand summer temperatures up to 50℃ with our special-spec. Our chillers can also exhibit maximum performance in factory environmants where hot air flow tends to accumulate. In winter temperatures as low as -20℃, you can count on our air cooled models continuing to perform, even in outside installations.
- When operating with a 30% to 40% solution of industrial-use ethylene glycol.
Pump is also Inverter Driven
Inverter Drive for the Compressor,
Fan, and Now Also the Pump!
Being able to achieve just the required flow rate eliminates waste, even without bypass-valve control.
Choose the Desired Pump Control Method
In addition to setting the operating frequency, it is also possible to set the flow rate based on an estimated flow rate standard, or set the water pressure. Operation possible at the optimum flow rate or pressure in accordance with the load.
- The noted flow rate is a calculated value. The actual flow rate may differ. If an exact measured flow rate is required, then an external (user supplied) flowgauge should be installed.
Intelligent Touch Panel
Various settings and operating conditions can be visually and intutively chaecked and operated via the touch panel controller. The displayed language cn be changed to English, Japanese or Chinese.
The display language can be changed.
English 
Japanese 
Chinese 
Low Noise and Noise Reducing Design
Ideal inverter fan speed control through optimized refrigeration cycle control. Achieves much lower operating noise levels.
- Operating noise measured from a distance of 1m from the front of the unit at a height of 1m.
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.
Detailed display functions enable quick recovery!
- Inspection Warning
- Liquid Temperature Warning
- Water Pressure
- Refrigeration Circuit
- Inverter etc.
Meets the Demands of World Markets
- CE Marking and RoHS Compliant Models Available
- Other International Standards
For inquiries, please contact us via our web site.
Accessory (Sold Separately)
Standard Equipment / Accessory (Sold Separately) /
Special Specification
ORION produces a variety of products geared toward making our Inverter Chillers meet the wide ranging needs of all of our customers.
Follow this link to browse the accessories available for our Heavy-Duty DC Inverter Chillers.
Specifications
Air Cooled
| Model | Air Cooled | |||||||
|---|---|---|---|---|---|---|---|---|
| RKE3750B-V G1 / G2 (Incl. casters) |
RKE5500B-V | RKE7500B-V | RKE11000B1-V | RKE15000B-V | ||||
| Performance Specifications |
Cooling Capacity※1 | kW | 12.2 | 20.3 | 25.0 | 37.2 | 48.0 | |
| Heating Capacity※8 | kW | 2.8 | 3.7 | 8.0 | 10.0 | |||
| Operable Ambient Temperature Range |
℃ | –20 to 45 (–20 to 50 with an accessory, sold separately) |
||||||
| Operating Liquid Temperature Range |
℃ | 3 to 35 (w/ brine: 0 to 35)※7 |
||||||
| Control Precision※4 | ℃ | ±0.1 (Energy saving mode: ±2.0) |
||||||
| Operable Flow Rate | L/min | 15 to 60 | 60 to 170 | 100 to 230 | ||||
| Power Specifications |
Power Source※2 | V(Hz) | Three-phase 200 to 220 ±10% (50/60) | |||||
| Power Consumption※1 | kW | 5.4 | 9.8 | 10.2 | 13.5 | 18.1 | ||
| Electric Current※1 | A | 16.5 | 30.1 | 33.5 | 41.4 | 56.3 | ||
| Power Capacity※3 | kVA | 7.0 | 11.0 | 11.8 | 17.7 | 22.0 | ||
| Breaker Capacity※6 | A | 30 | 50 | 75 | 100 | |||
| Operation Control Method | Compressor speed control | |||||||
| Equipment Details |
Compressor | Construction | Fully sealed rotary type (inverter driven) |
Fully sealed scroll type (inverter driven) |
||||
| Output | kW | 1.7 | 3.0 | 4.6 | 7.46 | 11.19 | ||
| Condenser | Fin and tube forced air cooling | |||||||
| Heat Exchanger |
Construction | Plate type heat exchanger | ||||||
| Material | SUS316 (Brazing: Cu) | |||||||
| Discharge Pump |
Construction | Multistage centrifugai immersion type | ||||||
| Output | kW | 1.1 (Inverter driven) |
1.5 (Inverter driven) |
4.0 (Inverter driven) |
||||
| Fan Motor | Output | kW | 0.4 (Inverter driven) |
0.75 (Inverter driven) |
0.4 × 2 (Inverter driven) |
|||
| Water Tank Capacity | L | Approx. 60 | Approx. 90 | Approx. 100 | ||||
| Refrigerant | R410A | |||||||
| Chaged Amount | kg | 2.6 | 3.1 | 3.7 | 5.2 | 7.0 | ||
| CE marking | Compliant Models Avaible | |||||||
| External Dimensions | H | mm | G1: 1410 G2: 1536 |
1700 | 1700 | 1800 | ||
| D | mm | 752 | 854 | |||||
| W | mm | 720 | 870 | 1380 | 1610 | |||
| Unit Mass (dry weight) | kg | G1: 200 G2: 205 |
280 | 290 | 415 | 460 | ||
| Operating Noise Level (50/60Hz)※5 | dB | 60 | 63 | 69 | 68 | |||
- Operating conditions: Chilled water temp: 20℃, Ambient temp: 32℃. Cooling capacity is at least 95% of listed figures.
- Source voltage phase unbalance should be less than ±3%.
- The figure noted is when operating at the highest capacity in the normal operating range.
- Continuous current load fluctuation within ±10%, and with stable ambient temp and power supply, etc. Does not include starting times or when the cooling load is too small, in which case the compressor may cycle on and off.
- Operating noise levels are from a position of 1m in front of the unit and at a height of 1m.
- Unit comes with a built-in multi-purpose overload and short circuit protection breaker.
- For liquid temperature setting of 0 to 3℃, use a 30 to 40% solution of industrial-use ethylene glycoal.
- At time of startup only. Will differ depending on ambient temperature.
- The recommended liquid (chilled water) than can be used is either clean water or a 30% to 40% ethylene glycol solution. Note that there will be a 10% reduction in cooling capacity if using a 30% to 40% ethylene glycol solution. Alternatively, if deionized water is to be used, it should have an electrical conductivity of at least 1µS/cm.
- Heat output from the product (in kW) is approx. 1.3 times that of the cooling capacity.
Water Cooled
| Model | Water Cooled | |||||||
|---|---|---|---|---|---|---|---|---|
| RKE3750B-VW G1/G2 (Incl. casters) |
RKE5500B-VW | RKE7500B-VW | RKE11000B1-VW | RKE15000B-VW | ||||
| Performance Specifications |
Cooling Capacity※1 | kW | 14.1 | 23.4 | 27.3 | 43.0 | 48.0 | |
| Heating Capacity※8 | kW | 2.8 | 3.0 | 3.1 | 9.1 | 10.0 | ||
| Operable Ambient Temperature Range | ℃ | 2 to 45 (2 to 50 with an accessory, sold separately) |
2 to 45 | |||||
| Cooling Water Temperature Range | ℃ | 5 to 45 | ||||||
| Operable Liquid Temperature Range | ℃ | 3 to 35 (w/ brine: 0 to 35)※7 |
||||||
| Control Precision※4 | ℃ | ±0.1℃ (Energy saving mode: ±2.0) |
||||||
| Operable Flow Rate | L/min | 15 to 60 | 60 to 170 | 100 to 230 | ||||
| Power Specifications |
Power Source※2 | V(Hz) | Three-phase ±10%(50), Three-phase 200 to 220 ±10% (60) | |||||
| Power Consumption※1 | kW | 5.1 | 8.8 | 10.1 | 11.7 | 15.3 | ||
| Electric Current※1 | A | 19.2 | 31.8 | 33.0 | 36.3 | 48.2 | ||
| Power Capacity※3 | kVA | 8.0 | 12.2 | 12.6 | 17.2 | 19.5 | ||
| Breaker Capacity※6 | A | 30 | 50 | 75 | ||||
| Operation Control Method | Compressor speed control | |||||||
| Equipment Details |
Compressor | Construction | Fully sealed rotary type (inverter driven) |
Fully sealed scroll type (inverter driven) |
||||
| Output | kW | 1.7 | 3.0 | 4.6 | 7.46 | 11.19 | ||
| Condenser | Double pipe water cooling | |||||||
| Heat exchanger | Construction | Plate type heat exchanger | ||||||
| Material | SUS316 (Brazing: Cu) | |||||||
| Discharge Pump | Construction | Multistage centrifugal immersion type | ||||||
| Output | kW | 1.1 (Inverter driven) |
2.0 (Inverter driven) |
4.0 (Inverter driven) |
||||
| Water Tank Capacity | L | Approx. 60 | Approx. 90 | Approx. 100 | ||||
| Refrigerant | R410A | |||||||
| Charged Amount | kg | 2.6 | 2.8 | 3.6 | ||||
| CE Marking | Compliant Models Available | |||||||
| External Dimensions | H | mm | G1 : 1410 G2 : 1536 |
1700 | 1410 | |||
| D | mm | 752 | 854 | |||||
| W | mm | 720 | 870 | 1380 | ||||
| Unit Mass (dry weight) | kg | G1:200 G2:205 |
280 | 290 | 405 | |||
| Operating Noise Level (50/60Hz)※5 | dB | 58 | 59 | 61 | 59 | |||
- Operating conditions: Chilled water temp: 20℃, Cooling water temp: 32℃, Ambient temp: 32℃. Cooling capacity is at least 95% of listed figures.
- Source voltage phase unbalance should be less than ±3%.
- The figure noted is when operating at the highest capacity in the normal operating range.
- Continuous current load fluctuation within ±10%, and with stable ambient temp. and power supply, etc. Does not include starting times or when the cooling load is too small, in which case the compressor may cycle on and off.
- Operating noise levels are from a position of 1m in front of the unit and at a height of 1m.
- Unit comes with a built-in multi-purpose overload and short circuit protection breaker.
- For liquid temperature setting of 0 to 3℃, use a 30 to 40% solution of industrial-use ethylene glycoal.
- At time of startup only. Will differ depending on ambient temperature and cooling water temperature.
- The recommended liquid (chilled water) than can be used is either clean water or a 30% to 40% ethylene glycol solution. Note that there will be a 10% reduction in cooling capacity if using a 30% to 40% ethylene glycol solution. Alternatively, if deionized water is to be used, it should have an electrical conductivity of at least 1µS/cm.
External Dimensions
Air Cooled
RKE3750B / 5500B / 7500B-V
RKE11000B1 / 15000B-V
Water Cooled
RKE3750B / 5500B / 7500B-VW
RKE11000B1 / 15000B-VW
Performance Specifications
Air Cooled
Cooling Capacity Diagram
Chilled Water Flow Chart
- The illustration shows the actual measured flow rate value when the bypass valve is closed.
- Flow rate changes based on inverter frequency.
- The shaded area indicates the range possible for adjusted frequency value.
- If additives are used, the flow rate characteristics will change due to factors such asthe additive used, the concentration, fluid temp, etc.
Water Cooled
Cooling Capacity Diagram
Cooling Water Flow Rate (For the water cooled condenser)
- Actual cooling water flow rate will depend on the water temperature.
- Ensure the required quantity of water as shown in the graphs below.
Chilled Water Flow Chart
- The illustration shows the actual measured flow rate value when the bypass valve is closed.
- Flow rate changes based on inverter frequency.
- The shaded area indicates the range possible for adjusted frequency value.
- If additives are used, the flow rate characteristics will change due to factors such asthe additive used, the concentration, fluid temp, etc.
