SINCE 1889 Yamato Scientific Co.,Ltd.
External Closed Circulation Type Circulator, Neocool Line

Operating Temp. Range
10deg.C to Room Temp.
Pump Capacity (50Hz)
Max. Flow Rate 22.0/25.0L/min
Max. Lift 20.0/27.0m

  • Suitable for high flow amount and high lift.
  • Cooling capacity: 1,000W/860kcal at water temp. 20deg.C, at room temp. 20deg.C.
  • Continuous monitoring for water level, abnormal refrigerating pressure, cooling water pressure level, circulation pump, etc.

PDF Catalog

Model CHW700 CHS700
Operating Water For city water circulation For pure water circulation
Circulation Type Closed system circulation by pump
Operating Temperature Range 10deg.C to Room temp.
Tem. Adjustment Accuracy ±1.5 to 2.5deg.C
Cooling Capacity Approx. 1,050W (900kcal) at Liquid temp. 20deg.C, at Room temp. 20deg.C
Temp. Control System Refrigerator On/Off control
Temp. Sensor T-thermocouple
Temp. Setting, Display Digital
Refrigerator •Coolant Air cooling 675W, R407C
Circulation Pump Magnet pump 65W x 2pcs.
Pump Max. Flow Rate 22.0/25.0L/min. (50/60Hz)
Pump Max. Lift 20.0/27.0m (50/60Hz)
Surrounding Operation Temp. Range 5 to 35deg.C
Circulation Nozzle Rc3/8 Female screw
Safety Device
Safety Countermeasures Self diagnosis functions, Electric leakage breaker with over current protection, Refrigerator over load relay, Refrigerator pressure detector, Refrigerator protection’s delay timer function, Float switch, Circulation pump protection by-pass
Other Function Drain cock, Dust prevention filter, Refrigerator pressure indicator, Automatic stop operation, Automatic start operation, Key lock function, Calibration off set function, Breakout protection function, Temp. output terminal (4-20mA).
Accessories Drain hose 0.5m x 1pc, Overflow hose 0.5m x 1pc
Water Bath Dimension ID300 x H235mm
Water Bath Capacity Approx. 16L ( liquid volume 14L)
Cooling Coil Copper-nickel plated
External Dimension W380 x D460 x H1,050 mm
Power Source AC100V 50/60Hz 12A
Weight Approx. 55kg

Control Panel

Water level monitor, Refrigerator monitor, Refrigerator operation indicator

Back Side Size (mm)

Note: Straight circulation nozzle is option.

Optional Items
Description Model No. Product Code
Straight circulation nozzle 10.5m dia Rc3/8 CHW700/CHS700 221394
Straight circulation nozzzle 13.0m dia Rc3/8 CHW700/CHS700 221399
Straight circulation nozzzle 16.0m dia Rc3/8 CHW700/CHS700 221395
L shape circulation nozzle 10.5m dia Rc3/8 CHW700/CHS700 221396
L shape circulation nozzle 13.0m dia Rc3/8 CHW700/CHS700 221397
L shape circulation nozzle 16.0m dia Rc3/8 CHW700/CHS700 221398
External communication adapter RS485-RS232C changeable CHW700/CHS700 281388

Circulation nozzle