hajdu HB300C Manuel De Mise En Service, D'opération Et D'entretien page 65

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are listed in table 2.10.1 containing technical data.
The temperatures of typical heat pump cycles, in connection with features of
the cooling fluid and the free source ensure heating of sanitary water located in the
aluminium pipe heat exchanger placed outside of
HB300(C(1)) heat pump water heater up to a temperature of max. 60°C, besides
normal usage conditions.
equipped with a supplementary pipe radiator that provides further options: quicker
obtaining of operation with full capacity through combination of heat pump mode and
pipe radiator mode up to a temperature of max. 60°C that may be used after running
of antibacterial protective cycles. In order to ensure rational energy use during the
operation of the hot water tank, visual indicators call the attention of the user on the
fact that the appliance is not operated in the most efficient way if the pipe radiator is
active.
4.3. Water heating methods
The appliance operates using two types of power source. As a standalone heat
pump and/or using the electrical pipe radiator. Models HB300 C and C1 incorporate a
heat exchanger pipe coal (for model HB300C). Hot water tank of type HB300C can be
used with multiple energy sources: indirectly from solar energy, or gas-based, coal-
based or other energy carriers; furthermore, the auxiliary electric heating provided by
appliances of type HB300(C(1)) is controlled by the heat pump unit. All of the three
heating functions can be used simultaneously.
This appliance has two temperature sensors that are placed in the upper flare
located on the closing cover and in the lower flare. The sensor placed in the upper flare
measures the upper temperature, and this number is displayed by the Water temp
indicator, while the sensor placed in the lower flare monitors the lower temperature,
which serves as input data for switch on/ off, but is not displayed.
1.) Economy Mode:
In this mode, only the heat pump operates, as a result of pre-set water
temperature, and the electric heater is not enabled.
(The water outlet temperature is 38 to 60
environment is -7 to 43
2.) Hybrid Mode:
In this mode, the equipment splits its operation capabilities to electric heating
and heat pumping, based on the temperature of the water tank.
(The water outlet temperature is 38 to 60
environment is -20 to 43
3.) E-heater Mode:
In this mode, the motors of the compressor and the fan do not work, only the
electric heater operates. In this case, only water located in the upper part of the tank
is heated, which means approximately 100 l.
(The water outlet temperature is 38 to 60
environment is -20 to 43
a) Defreezing through water heating
In case of Economy Mode and Hybrid Mode, if the evaporating steam freezes in cold
environments, the appliance defreezes it automatically to ensure efficient
performance (3~10 min).
b) External environmental temperature
The operating temperature of the appliance may range from -30 to 43 °C, and the
operating temperatures of the individual modes are as detailed below
As HB300(C(1)) heat pump water heater has been
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