RKS-GM Compact Chiller With Water Tank (Water Cooled) The RKS Series mid-grade water cooled functionality has evolved into a compact and easy-to-use chiller.
RKS750G-MVW / RKS1500G-MVW
- Cooling Capacity
(50/60Hz) - 2.2/2.5kW(RKS750G-MVW)
4.9/5.3kW(RKS1500G-MVW)
- Operable Ambient Temperature Range
- 5 to 40 ℃
- Operable Liquid Temperature Range
- 5 to 35 ℃
- Temperature Control Precision
- ±0.1℃
- Electronic expansion valve control gives temperature precision to ±0.1 ℃.
- High head pump (30 m※or higher) STANDARD!
- 20 m on RKS750G, 50 Hz models.
- Compact
Features
Easy Operation
| The chiller can easily be started by simply pressing the RUN button. With the breaker right in front, it's easy to switch on and off the power source. Alarms can be canceled by pressing the ALARM RESET button. |
| Error codes of alarms that have occurred can be displayed for easy, no-worry diagnosis. Also, information on the last 6 alarms is recorded for easier troubleshooting. |
| Independent operation of the discharge pump is possible so that, if by some reason the compressor shuts down, water circulation can continue. |
| Choice of Local and Remote operation can be set. |
Robust
Sheet Metal Construction of External Surfaces
Sheet metal constructed exterior that can withstand the long life of this chiller.
Frame Construction
A sturdy construction that gets its rigidity from its frame design.
High Capacity Water Tank
The 10 L high-capacity water tank is designed to deal with fluid temperature fluctuations better.
Operate and Check Operating Details via PC
Communications Method
USB: 1 Unit, RS-422A: 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.
Application
We have a page that highlights applications of the RKS GM Series. Have a look!
Specifications
| RKS750G-MVW | RKS1500G-MVW | ||||||
|---|---|---|---|---|---|---|---|
| Performance | Cooling Capacity (50/60 Hz)※1 | kW | 2.2/2.5 | 4.9/5.3 | |||
| Heating Capacity (50/60 Hz)※5 | kW | 0.6/0.7 | 1.2/1.4 | ||||
| Operable Ambient Temperature Range | ℃ | 5 to 40 | |||||
| Operating Liquid Temperature Range | ℃ | 5 to 35 | |||||
| Cooling Water Operating Pressure | MPa | 0.05 to 0.2 / 0.3 (50/60 Hz) | 0.1 to 0.5 | ||||
| Control Precision※4 | ℃ | ±0.1 | |||||
| Min. Operating Circulation Rate (50/60 Hz) | L/min | 10 (Head: 20/30 m) | 12/21 (Head: 50 m) | ||||
| Electrical Specifications | Power Source※2 | V(Hz) | Three-phase 200±10%(50/60) | Three-phase 220±10%(60) | Three-phase 200±10%(50/60) | Three-phase 220±10%(60) | |
| Power Consumption※1 | kW | 0.9/1.1 | 1.1 | 1.8/2.2 | 2.2 | ||
| Electric Current※1 | A | 3.9/3.7 | 3.7 | 6.7/7.2 | 7.2 | ||
| Power Capacity※3 | kVA | 2.0 | 3.9 | ||||
| Breaker Capacity | A | 10 | 15 | ||||
| Operation Control Method | Electronic expansion valve capacity control | ||||||
| Equipment Specifications | Refrigeration Compressor | Construction | Hermetically sealed rotary type | ||||
| Output | kW | 0.85 | 1.8 | ||||
| Condenser | Plate type heat exchanger | ||||||
| Evaporator | Construction | Plate type heat exchanger | |||||
| Material | SUS316 (Brazing: Cu) | ||||||
| Discharge Pump | Construction | Cascade type | |||||
| Output | kW | 0.25 | 0.4 | ||||
| Water Tank Capacity | L | Approx. 10 | |||||
| Refrigerant | R-410A | ||||||
| External Dimensions (HxDxW) | mm | 615×500×375 | 933×590×375 | ||||
| Mass (Dry mass) | kg | 55 | 85 | ||||
| Operating Noise Level (50/60 Hz)※6 | dB | 59/62 | 64/65 | ||||
- Operation under the following conditions: Chilled water temp.: 20 ℃, ambient temp.: 25 ℃, discharge pump operating at maximum flow rate. Cooling capacity is at least 95% of the noted value.
- The source voltage phase unbalance should be within ±3%.
- The figure noted is when the product is operating at its maximum rated capacity.
- When the current load is continuously within ±10%, and the ambient temperature is stable. Not valid during during restart.
- Maximum heating power when: Chilled water temperature: 20 ℃, ambient temperature: 25 ℃, discharge pump and head at maximum capacity. Power will change depending on operating conditions.
- Operating noise levels are from a position of 1 m in front of the product and at a height of 1 m.
- The recommended liquid (chilled water) for use in this product is clean water or a 30% to 40% solution of industrial-use ethylene glycol. Use Aurora Brine or Nai-Brine Z-1 industrial-use ethylene glycol. Alternatively, if conditioned water is used, then it should have an electrical conductivity of at least 1 µS/cm. Note that there will be a 10% drop in cooling capacity if using a low-concentration 30% to 40% ethylene glycol solution.
External Diagram
Performance
