CTC Union EcoZenith i555 Pro 1x230V, Руководство по установке и обслуживанию

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14 CTC EcoZenith i555 Pro
8 kW 12 kW
17 kW 17 kW
8 kW 12 kW 17 kW
17 kW 17 kW 17 kW
2.3.2 Lower tank
In the lower tank the heat pump operates to provide heat to the heating
circuit.
Heat pump operation is of so-called floating condensation type. However,
the lower tank never drops below the lowest set temperature.
Floating condensation operation is where the heat pump heats to the
temperature required by the heating circuit. This temperature varies
depending on the outdoor temperature and which set inclination and
adjustment (the heat curve for the house) has been chosen. If a room sensor
is installed, this will affect the temperature required in the system. During
spring and autumn, when it is not so cold outside, a lower temperature is
needed for the heating circuit, but during winter a higher temperature is
needed to maintain the desired indoor temperature.
Savings from a heat pump are directly linked to the COP value. COP means
the output divided by the supplied power. COP 4 therefore means, for
instance, that the heat pump delivers 4 kW and uses 1 kW ( ).
The lower the temperature the heat pump needs to deliver, the higher the
COP value obtained from the heat pump, as this will involve the compressor
working to better advantage.
Therefore, the heat pump heats only to the temperature in the lower tank
required by the heating circuit. This saves compressor life and maximises
operating economy. The electric heater, which is factory installed in the lower
tank, is blocked as long as the heat pump is operating.
The electric heater is only brought into use if the heat pump is blocked for
any reason.
Also refer to the "Lower tank" section in the "Detailed Menu Descriptions"
chapter (Installer/Settings/Lower Tank) and the "DHW" chapter.
4
1
= 4
2.3.3 More Than One Heat Pump
If more than one heat pump is installed, heat pumps two and three are
connected to the lower tank only.
Only one of the heat pumps alternates between DHW and heating operation.
2.3.4 Prioritisation of heat pump operation
When the product controls two or more heat pumps of different sizes, the
connected heat pumps are divided into two categories: small or large heat
pumps. Dividing the available heat pumps into two different size categories
means it is possible to change the output in small steps and in this way
achieve modulating operation.
When, for example, a need for power occurs, a large heat pump is switched
on at the same time as a small heat pump is switched off, and vice versa
when reducing power. Within both the small and large groups, reciprocal
heat pump operation is prioritised according to accumulated operation time.
When combining different types of heat pumps, air/water and ground source
pumps are prioritised according to the current outdoor temperature.
In the example above, 8 kW and 12 kW
are classed as small, while the two 17 kW
machines are classed as large.
In the example above, 8 kW and 12 kW
are classed as small, while the four 17 kW
machines are classed as large.