hajdu HB300C Manuel De Mise En Service, D'opération Et D'entretien page 66

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4.4. Explanation of water heating operation
1) Economy Mode: -7~43°C
This mode is recommended when the external environmental temperature is
between -7~43°C . If the external environmental temperature falls under the
temperature of -7°C, energy efficiency becomes low, evidently, thus it is recommended
to use E-heating mode under these circumstances.
2)
Hybrid Mode: -30~43°C
3) E-heater Mode: -30~43°C
In each case, only water located in the upper part of the tank is heated, which
means. approximately 100
4.5. Mode selection
As different modes have been developed to serve different needs, it is recommended
to consider the following: .
⋅ Economy Mode:-7~43°C,
In case of continuous hot water need under 300 L (60 °C);
⋅ Hybrid Mode: -30~43°C,
In case of continuous hot water need between 300 L (60°C).
⋅ E--heater Mode: -30~43°C,
In case of continuous hot water need under 100 L (60°C).
Construction features
4.6.
HB300(C(1)) heat pump water heater is basically composed of an upper part
(Figure 2.7.-1.) containing heat pump equipment and a lower part (Figure 2.7.-2.)
containing the storage tank. The storage tank of the sanitary hot water- having a
volume of – is covered by an enamel coating internally and by a thick polyurethane
insulation layer having large efficiency externally, and the latter is covered by plastic
surface of the appliance. The pipe radiator, controlling indicator anode electrics and
magnesium indicator anode located on the closing cover are placed on a horizontal
axle common with the closing cover.
The condensate water discharge pipe branch is located in the rear part of the
circle-shaped tray above. The control panel equipped with display is located in the
front part. All the other parts of the heat pump circuit are located above the storage
tank according to a precisely planned order, which produces optimal operation,
reduced vibration and noise emission.
The following parts are placed under an easily accessible and adequately
insulated plastic coverage: compressor, thermostatic expansion valve, evaporator, fan
ensuring adequate air flow and all the other parts displayed on Figure 2.7.-1.
5. USEFUL INFORMATION, PRECAUTIONS
First installation
5.4.
WARNING
!
Putting into operation and first start up of the appliance can only be
performed by a technician according to all related effective regulations or legal
requirements or any requirements defined by local authorities and public health
organizations.
If the water heater to be installed does not simply replace an existing
appliance but it represents part of renovation of an existing hydraulic system or