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  4. Environmentally friendly natural refrigerant. World's highest level of high efficiency. Direct-fired double-effect highest efficiency absorption chiller/heater Efficio NZ type NZ-250 (gas fired) (Kawaju Refrigeration Industry Co., Ltd.)
Environmentally friendly natural refrigerant. World's highest level of high efficiency. Direct-fired double-effect highest efficiency absorption chiller/heater Efficio NZ type NZ-250 (gas fired)-NZ-250
Environmentally friendly natural refrigerant. World's highest level of high efficiency. Direct-fired double-effect highest efficiency absorption chiller/heater Efficio NZ type NZ-250 (gas fired)-Kawaju Refrigeration Industry Co., Ltd.

Environmentally friendly natural refrigerant. World's highest level of high efficiency. Direct-fired double-effect highest efficiency absorption chiller/heater Efficio NZ type NZ-250 (gas fired)
Kawaju Refrigeration Industry Co., Ltd.

About This Product

Features of absorption chiller/heater/freezer

■Diverse thermal energy use

In addition to fuels (gas, oil), various types of thermal energy can be used, such as waste heat from gas engines, steam, and natural solar heat.

■Peak cut

Since thermal energy is the main power, electricity consumption during operation is small. In general, the amount of electricity used for air conditioning tends to increase in the summer, but since absorption chiller/heaters and refrigerators consume less electricity, it is possible to cut peak electricity consumption in the summer.

■Gas/oil switching exclusive firing

Since it can use stockpiled fossil fuels, it can also be used as a BCP measure for hospitals and public facilities that need to operate even in the event of a disaster. Product overview

■World's highest level of rated efficiency

By adopting a small high-performance heat exchanger, a two-stage evaporation/two-stage absorption structure with two evaporators and two absorbers, and a high-performance heat transfer tube, the rated COP has been improved, achieving the world's highest level of efficiency according to JIS standards.

■World's highest level of period efficiency

By adopting parallel flow, standard inverter control of the solution pump, and development of a high-performance gas burner, efficient operation is always achieved from low to high load areas.

■World's highest level of system efficiency

Improved system efficiency not only for the main unit but also for auxiliary equipment. World's highest level of energy saving.

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    Environmentally friendly natural refrigerant. World's highest level of high efficiency. Direct-fired double-effect highest efficiency absorption chiller/heater Efficio NZ type NZ-250 (gas fired)

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1 Models of Environmentally friendly natural refrigerant. World's highest level of high efficiency. Direct-fired double-effect highest efficiency absorption chiller/heater Efficio NZ type NZ-250 (gas fired)

Image Part Number Price (excluding tax) Power supply current (50Hz/60Hz) A Power capacity (50Hz/60Hz) kVA Electricity power supply Wiring thickness (50Hz/60Hz) mm2 Capacity Heating kW (Mcal/h) Capacity Cooling kW (USRT) Fuel consumption Gas (cooling/heating) m3N/h (kW) Hot water inlet temperature - outlet temperature °C Mechanical specifications (indoor type) Custom height (H) mm Mechanical specifications (indoor type) Custom length (L) mm Mechanical specifications (indoor type) Custom width (W) mm Total motor output during heating (50Hz/60Hz) kW Spray absorption liquid pump (50Hz/60Hz) kW Connection size Combustion exhaust gas outlet mm Connection size Fuel inlet A Connection size Cold/hot water inlet/outlet A Connection port size Cooling water inlet/outlet A Required supply pressure kPa Circulating absorption liquid pump (50Hz/60Hz) kW Cold and hot water flow m3/h Cold and hot water pressure loss kPa Amount of cold and hot water held m3 Chilled water inlet temperature - outlet temperature °C Total motor output during cooling (50Hz/60Hz) kW Refrigerant pump (50Hz/60Hz) kW Cooling water flow rate m3/h Cooling water pressure loss kPa Cooling water inlet temperature - outlet temperature °C Cooling water capacity m3 Burner blower (50Hz/60Hz) kW
Environmentally friendly natural refrigerant. World's highest level of high efficiency. Direct-fired double-effect highest efficiency absorption chiller/heater Efficio NZ type NZ-250 (gas fired)-Part Number-NZ-250

NZ-250

Available upon quote

29.5/27.1

9.3/8.5

200V, 3Φ

8.0/5.5

580 (499)

879 (250)

13A gas
51.4/51.4 (643/643)

54.7 → 60.0

2,244

5,164

2,424

4.25/4.25

1.3/1.3

320×320

Rc 1 1/4

125

200

1.96

2.2/2.2

94.5

79.3

0.36

15.0 → 7.0

4.55/4.55

0.3/0.3

250

71

32.0 → 37.0

0.82

0.75/0.75

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Kawaju Refrigeration Industry Co., Ltd.

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