×

Economy model RKS J series

Ease of use + Ease of handling + affordable price

Economy model RKS J series

Loaded with Application Functionality that Conforms to Your Operating Environment!

  • Cooling Capacity (50/60 Hz): 2.2/2.5 kW(RKS753J-V)
    4.9/5.3 kW(RKS1503J-V)
  • Operating ambient temperature range : 10 to 40 ° C
  • Usable solution temperature range : 15 to 35 ° C

Compressor ON/OFF control offers temperature control of ±2 °C for superior versatility.

High Head Pump Built In!

DOWNLOAD BROCHURE

Made Even Easier to Use!

Simple and Reassuring Design Common on All RKS J(M) Series Models

Simple and Reliably Designed Controller + Substantial Functionality

Easy operation with just the flick of a switch! Alarm details via error code display for quick recovery.

Output signal

  • Operation signal
  • Alarm signal
  • Remote signal

Operation mode

  • Freeze-Prevention Mode
  • Warm Up Mode
  • Discharge Pump-Only-Operation
  • Automatic Recovery After Power Outage, etc.

Easy Filter Cleaning

Comes standard with a filter to help prevent clogging! Easy tool-less removable filter design. Filter can be directly cleaned for easy removal of dirt and reduced manpower, adding to chiller operating stability.

Large Capacity Tank with Wide Water
Supply Port

@ 100 mm large water supply port for easy cleaning! The high capacity tank means less frequent water shortage warnings, less frequent water supplying, and less change in water temperature due to changing loads. A built-in blue LED lit water indicator for easy confirmation of water level!

Wide mouth water supply port for easy tank cleaning.

Wide mouth water supply port for easy tank cleaning.

Specification table

Model RKS753J-V RKS1503J-V
Performance Specifications
Cooling capacity (50/60 Hz) * 1 kW 2.2 / 2.5 4.9 / 5.3
Operating ambient
temperature range
10 to 40
Operating temperature
range (liquid temperature)
15 - 35
Cold water use pressure MPa 0.05 - 0.2 / 0.3 (50/60 Hz) 0.1 to 0.5
Control accuracy * 4 ± 2.0
Minimum circulation used
(50/60 Hz)
L / min 10 (head height 20/30 m) 12/21 (head height 50 m)
Power
Specfications
Power supply * 2 V (Hz) Three phases 200 ± 10% (50/60) · 220 ± 10% (60)
Power consumption (50/60 Hz) * 1 kW 0.9 / 1.1, 1.1 1.8 / 2.2, 2.2
Current (50/60 Hz) * 1 A 4.1 / 4.1, 4.1 6.8 / 7.4, 7.4
Power supply capacity * 3 kVA 2.0 4.2
Breaker capacity * 5 A 10 15
Operation control system Compressor ON / OFF control
Environmental Conditions
Refrigerating compressor Construction All sealed type rotary type
output kW 0.85 1.8
Condenser Corrugated fin and tube type parallel flow type
Cooler Construction Plate type heat exchanger
Material SUS 316 (brazing: Cu)
Pumping pump Construction Cascade type
output kW 0.25 0.4
Actual tank capacity L About 17
Refrigerant R-410A
External dimensions (height × depth × width) mm 615 × 500 × 375 933 × 590 × 375
Product weight (dry mass) kg 45 67
Driving sound (50/60 Hz) * 6 dB 61/63 63/66
  • Cold water temperature 20 ?, ambient temperature 25 ?, pressure delivery pump circulation maximum time. The cooling capacity is 95% or more of the display capacity.
  • The phase unbalance of power supply voltage should be within ± 3%.
  • Maximum operating current within the operating range.
  • When the current load within ± 10% continues and ambient temperature is stable.
  • However, except at startup and when a thermal load exceeding the cooling capacity is input.
  • Built-in overload protection breaker (NFB) as standard.
  • The driving sound is 1 m front and 1 m high.
  • Clean water and 30 to 40% industrial ethylene glycol solution are recommended for liquid (cold water) used in this machine.
  • However, when using an industrial ethylene glycol aqueous solution of 30 to 40%, since the cooling capacity drops by about 10% Please be careful.
  • Also, in the case of pure water, please set the electric conductivity to 1 ?S / cm or more.
  • Depending on the usage environment, condensation may form on the internal piping of the main unit or the mechanical seal of the pump may deteriorate in a short period of time, so please install a drain pan of the accessory as necessary.

Dimensions

Chilled Water Flow Chart

Operating temperature limit

Discharge Pump Characteristic Curves *1: Refer to 60 Hz curve. *2: Refer to 50/60 Hz curve.

Discharge Pump Characteristic Curves (For factory options) *1: Refer to 60 Hz curve. *2: Refer to 50/60 Hz curve.