CTC Union EcoLogic L, Руководство по установке и обслуживанию

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12 CTC EcoLogic M/L
+
HP 1
HP 2
HP 3-10
8 kW 12 kW
17 kW 17 kW
8 kW 12 kW 17 kW
17 kW 17 kW 17 kW
1.3.1.1 More than two heat pumps*
Two heat pumps can be connected via 3-way valves that alternate the
charging between the DHW tank and the heating circuit. If more than two
heat pumps are installed, these are connected to the heating circuit. The
heat pumps are connected via the Modbus communication interface.
When two or more heat pumps are connected to the same system, the
common pipes, 3-way valves and mixing valves must be sized so that they
are able to cope with the total flow from the heat pumps. Check the flow of
the heat pumps by comparing primary/return/outdoor temperature (refer to
the "Installation and Maintenance Manual" chapter in the heat pump manual).
1.3.1.2 Prioritisation of heat pump operation
When CTC EcoLogic 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.
1.3.1.3 Different Heat Pumps
CTC EcoLogic can control different types of CTC heat pumps, for example,
CTC EcoAir (air/water heat pump) and CTC EcoPart (liquid-to-water heat
pump).
The outdoor temperature at which CTC EcoAir is prioritised over CTC
EcoPart is set in the "Installer/Settings/Heat Pump" menu. This means that
the operating economy can be maximised, as at a high outdoor temperature
a greater energy yield is obtained from the CTC EcoAir than from the CTC
EcoPart. This combination works exceptionally well for installations where,
for example, the ground source heat pump is undersized. An air-to-water
heat pump can then be used to give the bedrock a longer time to ‘recover’
and provide the system with increased power.
*Only applies to CTC EcoLogic L.
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.