Sime ECOMAXI VB 300 S Instrucciones De Instalación Y Funcionamiento página 40

Part 1. The Characteristics and Working Principles
Air source heat pump water heater is one of the most advanced water heater appliances with high
energy efficiency. The operational principle of heating is to absorb heat from the air based on the
changing state of the refrigerant in the refrigerant system, and then release heat into the water so the
storage water temperature increases, so as to supply the hot water.
This product is suitable for domestic use, enterprises and institutions, service business and other
industries, providing hot water for shower and washing.
■ Characteristics
High-Efficiency, Energy-Saving
This product consumes little electric power. It absorbs a large number of free thermal energy from
the air with high heat-collecting efficiency and low operational cost. Compared with the traditional
electric water heater, the air source heat pump water heater can save energy by 70% or above.
Environmental Friendly
This product consumes natural energy, with no air pollution, no smoke emission and no harmful gas
emission. It has zero-pollution and is absolutely environmental friendly.
Safe and Reliable
This product operation separates the water and the electricity, excluding any potential safety
problems of explosion, combustion, electric shock, poisoning, etc.
Convenient-To-Use
This product has the electricity-assistant heating function, so it is not influenced by cloudy, rainy or
snowy weather, no matter day or night.
Intelligent Control
This product has micro-computer unit to control, easy to operate and with automatic memory
function when power supply interrupts. It does not need the guarding of a special person. Besides, the
electricity-assistant function is together with anti-dry heating and anti-overheating protection.
Stand Wear and Tear
The core component compressor is of high-quality with strong reliable performance and long
service life.
Compatible with photovoltaic inverter
This product can be connected to photovoltaic inverter, make full use of any overproduction of
electricity for free.
■ Working Principles
1. Working Principles of Air Source Heat Pump Water Heater
The compressor draws refrigerant vapor which is low temperature and low pressure from
evaporator and significantly increases the pressure and temperature of vapor. Then the refrigerant will
exchange heat with water in the water tank and become liquid state. The water keeps absorbing the
heat and the temperature is rising. The high pressure liquid will go through the throttling device to
significantly reduce pressure and temperature. Finally the fan draws air through the evaporator and the
cold liquid refrigerant absorbs heat from air to become vapor again. The refrigerant will continuously run
the above way so as to heat water.
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