Genvex Optima 155, Руководство пользователя

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7
Optima 155
2. Function
2.1 Control Optima 155
The flow diagram in the installation manual shows the
location of the sensors, while the control circuit board
shows the relay outputs and the other outputs for
connecting fan and control panel.
Vanvex R sanitary hot water heat pump:
The hot water heat pump is only intended to produce
hot tapping water for domestic use within the specified
temperature limits. The Vanvex R sanitary hot water heat
pump is a complete unit with a 285 litre hot water tank,
extraction fans, heat pump and also equipped with a
complete electrical equipment.
Capacity:
The Vanvex is capable of producing a hot water volume
of app. 1000 Litres at 45°C. The actual volume depends
on the supplied fresh water temperature, air temperature
and the pattern of use of hot water. The additional
electrical heating element (1,5 kW) may be used to boost
the capacity whenever needed. The heat pump only
uses app. 27% of the energy compared to a conventional
electric boiler.
Heat pump operation:
The control starts the compressor shortly after hot water
has been tapped. The compressor will run until the entire
boiler has been heated to the set temperature again.
Usually the heat pump can produce a sufficient amount of
hot tapping water covering the needs of a common family.
Water heating:
When hot water is drawn off, the boiler will be refilled
with cold water at the bottom. A sensor measures the
temperature at the bottom of the tank and starts the
compressor, if the temperature has fallen 5°C below
the set temperature. The compressor stops, when the
water has been heated to the set temperature. While
the compressor operates, the fan runs and circulates air
through the cooling surface.
Fan operation:
The fan may be set to run continuously,when the
compressor has stopped - by selecting level 2 or level 3.
This option may be chosen when the Vanvex R is used
as an extraction system in the residential wet rooms. If
the input to T4 short circuits, the control is forced to run
at 3rd speed. This may be used in order to achieve more
extract in e.g. the bathroom while taking a shower. When
breaking the short circuit on the input pins to T4, the
control will return to its previous step.
Defrosting:
When the temperature difference between the
temperature in front of the cooling surface and the
temperature of the cooling surface becomes too large
(as happens when ice is formed on the cooling surface),
the unit goes into defrost mode. The magnetic valve
MA 4 opens and the supply air fan stops, until the ice
has melted and the cooling surface has reached a
temperature of app. 5°C (depends on the settings). Then
the magnetic valve closes again and the supply air fan
resumes operation.
2.2 Extra Capacity
If a situation should occur where the sanitary hot water
heat pump is not capable of producing enough hot
tapping water, an extra electrical heating element that is
mounted in the boiler can be switched on. Doing so, it is
possible to heat up more water. It is possible to set the
desired temperature to which the electrical heater should
heat up the water. (Only use the electrical heater when
needed, as it uses more energy than the compressor).
The activation of the electrical heater is done manually on
the display.
2.3 Operating safety
High-pressure switch:
To prevent the compressor exceeding its range of
operation, there is an integral high pressure switch, which
interrupts when the pressure becomes too high. Activate
the red reset button once the cause of the error has been
identified. When the high pressure switch interrupts, the
red Genvex logo will flash until the red reset button on
the pressure switch is activated. In order to prevent a
repetition of a pressure switch error, the water may be set
2-3°C lower.
Safety breaker for electrical heating element
If an error occurs at the heater, the safety breaker trips
and stops the heater in order to prevent the tank from
being overheated.
When working on the heat pump, always
make sure that the power supply is
disconnected.
Any work on this unit may only be carried
out by trained personnel!
2.4 Faults
High-pressure switch:
When the pressure switch trips, the red light on the
display will light, until the pressure switch is reset.