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CO2 Waterheaters

Image of a SHP-C45DEN and a SHP-TH22DDN/DHN unit
  • Abundantly supply space heating and tap water
  • Environmentally friendly with CO2 natural refrigerant
  • Low ambient operation down to -20°C
  • DC rotary 2 stage compressor
  • High reliability
  • Expand operation range
  • -20°C low ambient temperature, it is possible
  • High efficiency
  • Low noise and vibration

SANYO CO2 ECO is a system that effectively utilizes heat in the atmosphere

Diagram showing the system flow of the heat pump Hot Water Supplier

Environmentally friendly

Table showing the characteristics of Natural Refrigerant CO2

A natural refrigerant (CO2) heat pump hot water supplier that considers the global environment.

For its refrigerant, SANYO "CO2 ECO" uses heat energy derived from compressed CO2, friendly to the ecosystem and our living environment. CO2 is an atoxic natural refrigerant with Ozone-Destruction Potential "0" and Global Warming Potential "1".

Economical

Chart showing a COP Comparison with an Electric Heater

The high-efficiency heat pump method enables its superior energy-conservation capability

The coefficient of performance (CO2) is 3.75 for SANYO "CO2 ECO" compared to 1 for electric heaters (standard condition).

Low ambient operation

Diagram showing a comparison of Heat Pump operation in Low Ambient vs HFC or HCFC Heat Pump Supplier

With SANYO "CO2 ECO", the heat pump operates continuously in the harsh condition of -20°C, maintaining its performance at no less than 4.0 kW. The consistent operation of the heat pump extremely low temperatures is made possible by the refrigerant circuit technology developed and refined by SANYO The heat pump operation of many models using "HCFC or HFC" as the refrigerant can only withstand the ambient temperature up to approximately -10°C. Electric heaters are required for temperatures below this level, resulting in performance that is not high in efficiency

The world First C02 ECO Rotary 2-stage Compression System

Diagram of the CO2 ECO Rotary 2-stage Compression System

SANYO "CO2 ECO" adopts the rotary 2-stage compressor, a creation of SANYO original technology.

The outstanding performance of SANYO's "2-stage compressor" supports the basic operation capability of "CO2 ECO".

Resistant to high working pressure
Internal intermediate pressure system

  • easier to design shell (lower D.P.)

Resistant to large pressure difference
2-stage compression system

  • high-reliability through load dispersion
  • high efficiency (lower leakage loss)
  • low vibration and low noise

High efficiency and lightweight design

2-stage compression system - DC brushless motor and inverter drive

  • high efficiency intensive winding motor with high-power neodymium magnet

Silent operation

With SANYO "CO2 ECO" the noise level during operation is 45 dB-A

Chart showing the noise levels of everyday sounds, with the CO2 ECO lying between 'In a library' and 'In an office'
Heat pump Unit SHP-C45DEN
Tank unit SHP-TH22DDN SHP-TH22DHN
Performance  
*1 Heating capacity / input kW 4.5 / 1.20
C.O.P. (Outdoor temp. 20°C) W/W 3.75
*2 Heating capacity / input kW 4.5 / 1.45
C.O.P. (Outdoor temp. 7°C) W/W 3.10
*3 Heating capacity / input kW 4.5 / 2.48
C.O.P. (Outdoor temp. -15°C) W/W 1.81
Electrical Rating  
Power supply Heat pump unit V 220-230-240
  Tank unit V 400 / 3+N 230 / 3+N
Maximum current A 20 30
Tank unit  
Tank capacity l 223
Maximum working pressure kg/cm2 2.5
Auxiliary electric heater capacity kW 9.0 7.05
Dimensions Net H/W/D mm 1547 x 597 x 609
  Shipment H/W/D mm 1736 x 700 x 737
Weight Net/Shipping kg 170.0 / 180.0
Heat pump unit  
Refrigerant (amount) (kg) CO2 (0.86)
Pressure sound level dB-A 45.0
Compressor DC Rotary two stage compression
Dimensions Net H/W/D mm 690 x 840 x 290
  Shipment H/W/D mm 765 x 943 x 433
Weight Net/Shipping kg 65.0 / 72.0

Rating conditions
*1, *2, *3; Outlet Water Temp. 50 deg. C / Inlet Water Temp. 30 deg. C
Specifications subject to change without notice