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Middle grade model water cooling specification GM series

RKS series middle grade water cooling type. It evolves with ease of use by condensing function gently.

Middle grade model water cooling specification GM series

  • Cooling capacity (50/60 Hz) : 2.2 / 2.5 kW (RKS 750 G-MVW) 4.9 / 5.3 kW (RKS 1500 G-MVW)
  • Operating ambient temperature range: 5 to 40 ° C
  • Usable solution temperature range: 5 to 35 ° C
  • Temperature control accuracy: ± 0.1 ° C

Electronic expansion valve control realizes temperature control accuracy ± 0.1 ° C

High head pump (30 m * or more) as standard equipment

The RKS 750G will be 20 m at 50 Hz.

Compact

Easy operation

Digital display section (measured water temperature / error display)

  • 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 to 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.

Initial Cost Difference

Robustness

Sheet Metal Construction of External Surfaces

Sheet metal constructed exterior that can withstand the long life of this chiller.

Frame Construction

A study 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 liquid temperature fluctuations better.

Operation and Monitoring Via PC Possible

Communications Method] USB: 1 Port, 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 temp. control of individual chillers.

Specification table

Model RKS750G-MVW RKS1500G-MVW
Performance specifications
Cooling Capacity (50 Hz/ 60 Hz) (1) kW 2.2 / 2.5 4.9 / 5.3
Heating Capacity (5) °C 0.6 / 0.7 1.2 / 1.4
Operable ambient temperature range °C 5 - 40
Operable Temp. Range (Liquid Temp.) °C 5 - 35
Operating Water Pressure MPa 0.05 - 0.2 / 0.3 (50/60 Hz) 0.5
Control Precision (4) ±0.1
Min. Operating Circulation Rate (50/60 Hz) L / min 10 (Head: 20/30m) 12/21 (Head: 50m)
Power specifications
Power Source (2) V (Hz) 3 phase 200 ± 10% (50/60) 3 phase 220 ± 10% (50/60) 3 phase 200 ± 10% (50/60) 3 phase 220 ± 10% (60)
Power consumption (50/60 Hz) (1) kW 0.9 / 1.1 1.1 1.8 / 2.2 2.2
Electrical current (50/60 Hz) (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 details
Compressor Construction Fully sealed rotary type
Output kW 0.85 1.8
Condenser Plate type heat exchanger
Heat Exchanger 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 R410A
External dimensions (HxDxW) mm 615×500×375 933×590×375
Product Mass kg 55 85
Operating Noise Level db 59 / 62 64 / 65
  • 1. Cold water temperature 20 ° C, ambient temperature 25 ° C during pumping pump flow maximum operation. The cooling capacity is 95% or more of the display capacity.
  • 2. The phase unbalance of power supply voltage should be within ± 3%.
  • 3. Maximum operating current within the operating range.
  • 4. When the current load within ± 10% continues and ambient temperature is stable. However, except during startup.
  • 5. Cold water temperature 20 ° C, ambient temperature 25 ° C Pressure pump Pump head Maximum heating capability at maximum. Ability will change according to driving conditions.
  • 6. The driving sound is 1 m front and 1 m high.
  • 7. Clean water and 30 to 40% industrial ethylene glycol solution are recommended for liquid (cold water) used in this machine.
  • 8. However, when using an industrial ethylene glycol aqueous solution of 30 to 40%, since the cooling capacity drops by about 10%
  • 9. Please be careful.
  • 10. Also, in the case of pure water, please set the electric conductivity to 1 ?S / cm or more.

External Dimensions (Units: mm)

Cooling Capacity

Pump Characteristic Curves

Cooling Water Flow Rate (For condenser)