Centrifugal Chiller

High Efficiency Inverter

GFG(GXG/GSG)-SIT series [200 to 2,000USRT]
Hitachi inverter centrifugal chillers have many unique energy saving functions which satisfy the customers’s demand to minimize the energy consumption.

GFG(GXG/GSG)-SIT series [200 to 2,000USRT]
Hitachi inverter centrifugal chillers have many unique energy saving functions which satisfy the customers’s demand to minimize the energy consumption.

Responsive to the demand

Hitachi High Efficiency Inverter-controlled Centrifugal Chillers realize energy-saving operation through out the year utilizing variable motor speed control with inverter unit, drastically improving partial load efficiency under low cooling water temperature condition in off-peak seasons.

Features of Hitachi High Efficiency inverter Controlled Centrifugal Chiller

Hitachi High Efficiency Inverter Controlled Centrifugal Chiller Hitachi High Efficiency Inverter-controlled Centrifugal Chillers realize energy-saving operation through out the year utilizing variable motor speed control with inverter unit, drastically improving partial load efficiency under low cooling water temperature condition in off-peak seasons. In addition, the chillers have many unique energy saving functions which satisfy the demand to minimize the energy consumption.

Excellent COP at Partial Load

Various technologies such as newly developed high efficiency economizer (cyclonic system), etc. enabled drastic improvement of the efficiency at partial load with low cooling water temperature. Improvement of the oil supply temperature control and the automatic oil recovery enables extension of the motor speed control range at low cooling water inlet temperature.

Improvement of the Oil Supply Temperature Control

When the compressor rotation speed is low, the friction heat generated at bearings decreases. Therefore, refrigerant flow to oil cooler is controlled to keep the oil temperature property.

"Energy Saving Mode" Operation (Peak Cut Operation)

Once the target motor power consumption is set, the chiller is automatically controlled by the motor speed, the inlet guide vane opening and the chilled water outlet temperature rise.
This control is extremely useful for the energy saving especially in the off-peak season when the motor speed is easily decreased. (Optional)

Energy & Power Saving Operation Functions

"Eco Mode" Operation (Chilled Water Inlet Temp. Control)
The chiller is usually controlled so the chilled water outlet temperature to be constant.
This "Eco Mode" operation introduces the inlet temperature control, where the chilled water inlet temperature is controlled to be constant.
The outlet temperature rises a bit but this is enough for the off-peak season air conditioning.

Cooling Water Variable Flow Operation (option)

When the cooling water variable flow control is applied, the cooling water flow rate is automatically calculated so the total power consumption of the compressor motor and the cooling water pump motor becomes minimum.

Feature of Low Voltage Inverter (380V~460V)

  • Light and concept structure do not choose installation location.
  • Inverters equipped with DC reactor to is moderate high frequency wave.
  • Harmonic filter can be supplied to comply with higher level regulation for total harmonic distortion. (e.g. IEEE 519) (Option)

Specifications

Specifications

SG Series (Model: HC-It**-SG)

F05ZX30S F05ZX30S F05ZZ30S F10B35S F20C35S F20D35S F25E35S F25F35S F30G35S F30H40S F35I40S F35J40S F40K40S F50N40S F50P40S
Model
Cooling Capacity kW
USRT
Rated Cooling Capacity Ton
Low voltage [400V class] (Compact) Power supply Hz/V
Low voltage [400V class] (Standalone) Power supply Hz/V
High voltage [3kV class] (Standalone) Power supply Hz/V
High voltage [6kV class] (Standalone) Power supply Hz/V
Chilled water temperature at inlet 12℃, outlet 7℃ / Cooling water temperature at inlet 32℃, outlet 37℃
F05ZX30SV
527
150
75
50Hz/400V , 60Hz/440V
50Hz/400V , 60Hz/440V
50Hz/3000V,3300V , 60Hz/3300V
50Hz/6000V,6600V , 60Hz/6600V
F05ZX30SV
703
200
91.6
50Hz/400V , 60Hz/440V
50Hz/400V , 60Hz/440V
50Hz/3000V,3300V , 60Hz/3300V
50Hz/6000V,6600V , 60Hz/6600V
F05ZZ30SV
1,055
300
129.1
50Hz/400V , 60Hz/440V
50Hz/400V , 60Hz/440V
50Hz/3000V,3300V , 60Hz/3300V
50Hz/6000V,6600V , 60Hz/6600V
F10B35SV
1,407
400
175
50Hz/400V , 60Hz/440V
50Hz/400V , 60Hz/440V
50Hz/3000V,3300V , 60Hz/3300V
50Hz/6000V,6600V , 60Hz/6600V
F20C35SV
1,758
500
211.6
50Hz/400V , 60Hz/440V
50Hz/400V , 60Hz/440V
50Hz/3000V,3300V , 60Hz/3300V
50Hz/6000V,6600V , 60Hz/6600V
F20D35SV
2,110
600
255.8
50Hz/400V , 60Hz/440V
50Hz/400V , 60Hz/440V
50Hz/3000V,3300V , 60Hz/3300V
50Hz/6000V,6600V , 60Hz/6600V
F25E35SV
2,461
700
300
50Hz/400V , 60Hz/440V
50Hz/400V , 60Hz/440V
50Hz/3000V,3300V , 60Hz/3300V
50Hz/6000V,6600V , 60Hz/6600V
F25F35SV
2,813
800
341.6
50Hz/400V , 60Hz/440V
50Hz/400V , 60Hz/440V
50Hz/3000V,3300V , 60Hz/3300V
50Hz/3000V,3300V , 60Hz/3300V
F30G35SV
3,165
900
379.1
50Hz/400V , 60Hz/440V
50Hz/400V , 60Hz/440V
50Hz/3000V,3300V , 60Hz/3300V
50Hz/3000V,3300V , 60Hz/3300V
F30H40SV
3,516
1,000
425
50Hz/400V , 60Hz/440V
50Hz/400V , 60Hz/440V
50Hz/3000V,3300V , 60Hz/3300V
50Hz/3000V,3300V , 60Hz/3300V
F35I40SV
3,868
1,100
469.1
50Hz/400V , 60Hz/440V
50Hz/400V , 60Hz/440V
50Hz/3000V,3300V , 60Hz/3300V
50Hz/3000V,3300V , 60Hz/3300V
F35J40SV
4,923
1,400
591.6
50Hz/400V , 60Hz/440V
50Hz/400V , 60Hz/440V
50Hz/3000V,3300V , 60Hz/3300V
50Hz/3000V,3300V , 60Hz/3300V
F40K40SV
5,274
1,500
634.1
50Hz/400V , 60Hz/440V
50Hz/400V , 60Hz/440V
50Hz/3000V,3300V , 60Hz/3300V
50Hz/3000V,3300V , 60Hz/3300V
F50N40SV
6,329
1,800
757.5
50Hz/400V , 60Hz/440V
50Hz/400V , 60Hz/440V
50Hz/3000V,3300V , 60Hz/3300V
50Hz/3000V,3300V , 60Hz/3300V
F50P40SV
7,033
2,000
842.5
50Hz/400V , 60Hz/440V
50Hz/400V , 60Hz/440V
50Hz/3000V,3300V , 60Hz/3300V
50Hz/3000V,3300V , 60Hz/3300V
SG Series (Model: HC-It**-SG)

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Resources

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