Assessments - 4, GPA: 4
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Facilidade de uso
Heat pump and transport pallet are only connected by the packaging film. The intake and outlet duct openings must not be restricted nor obstructed. Clockwise phase sequence to be observed: Damage to the compressor may be incurred if it is operated in the wrong sense of Do not use any cleaning agents containing sand, soda, acid or chloride as these may To prevent consequential damage it is imperative that the water circuit be neutralized after cleaning using appropriate agents. The unit is not suitable for operation with a frequency converter. Work on the refrigeration circuit may be performed by qualified persons only. 1.1 CAUTION! CAUTION! CAUTION! CAUTION! CAUTION! rotation. CAUTION! attack the surface. CAUTION! CAUTION! CAUTION! 1.2 Legal Provisions and Guidelines This heat pump was designed and built in compliance with all relevant EU directives, DIN and VDE regulations (see CE Declaration of Conformity). The electrical connection of the heat pump must be performed according to and conforming with all relevant VDE, EN and IEC standards. Beyond that, all technical connection requirements of the local electrical utility company have to be observed. On connecting the heating and cooling system, all relevant regulations have to be complied wit. 1.3 Energy-Efficient Use of the Heat Pump By purchasing this heat pump you contribute to the protection of the environment. A prerequisite for energy-efficient operation is the proper design of the heat source system and the heat utilization/cooling system. One of the most important factors of heat pump efficiency is keeping the temperature difference between the heating water and the heat source as small as possible. It is therefore strongly recommended that the design of both the heat source system and the heat distribution system be carried out with great care. A 1 Kelvin (1°C) higher temperature difference corresponds to an increase in power consumption of approx. 2.5%. When designing the heating system care must be taken that special applications such as domestic water heating are taken into consideration and dimensioned for low temperature operation. Heat pumps are optimally suited for underfloor heating (surface/radiant heating) applications due to the low supply temperatures (30 °C to 40 °C). During operation it is essential that the heat exchanger is not contaminated as this would increase the temperature difference resulting in an inferior coefficient of performance. A considerable contribution to the economical operation is made by the heat pump controller provided it is set correctly. For more detailed information refer to the operating manual of the heat pump controller. 3 PURPOSE OF HEAT PUMP SCOPE OF DELIVERY PURPOSE OF HEAT PUMP CAUTION! The unit is not suited for operation with a frequency converter. 2.1 Application The air-to-water heat pump is designed for use in existing or newly built heating systems. The heat pump is designed exclusively for the heating and cooling of heating water! In the heating mode, the heat pump is suitable both for mono-energetic and bivalent operation at outdoor air temperatures down to -20 oC. In the continuous mode of operation, a heating water return temperature of more than 18 °C must be maintained in order to ensure proper defrosting of the evaporator. The heat pump is not designed for any increased heat demand during the drying phase of new buildings; the additional heat demand must be met by special appliances to be supplied on site. For the structural drying of new buildings in the autumn or winter it is recommended that an additional electric heating element (available as accessory) be installed. In the cooling mode, the heat pump is suited for air temperatures ranging from +15 °C ... +40 °C. It can be used for passive and dynamic cooling applications alike. The minimum water temperature is +7 °C. 2.2 Principle of Operation Heating Ambient air is drawn in by the fan and passed over the evaporator (heat exchanger). The evaporator cools the air, i.e. it extracts the heat it contains. In the evaporator, the heat removed is transferred to the working fluid (refrigerant). With the aid of an electrically driven compressor, the absorbed heat is "pumped" to a higher temperature level through pressure increase and given off to the heating water via the condenser (heat exchanger). The desuperheater, mounted upstream, enables domestic hot water to be produced simultaneously or separately. In so doing, electrical energy is used to raise the heat of the environment to a higher temperature level. Due to the fact that the energy extracted from the air is transferred to the heating water, this type of appliance is referred to a air-to-water heat pump. The air-to-water heat pump consists of the following main components: evaporator, fan and expansion 3 valve as well as the low-noise compressor, a desuperheater, a condenser and the electric control unit. In the case of low ambient temperatures, air humidity may accumulate on the e...