Technical data
15
CTC EcoZenith i550 Pro
General Information
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.
The Ecozenith’s controller equalises the operating time between the heat
pumps so as to maximise heat output and minimise the load on them.
If the heat pump which starts first does not manage to get the temperature
up to the desired value, the second starts after a factory-set period of
30minutes, and then the third after another 30 minutes.
See also Heat pump Menu in the Detail Description Menus chapter
(Installer/Settings/Heat pump A1-A3)
2.3.4 Different Heat Pumps
The EcoZenith can control different types of heat pumps, the CTC EcoAir
(outdoor air heat pump) and the CTC EcoPart (bedrock/ground source
heat pump). The desired outdoor temperature at which the CTC EcoAir is
prioritised over the CTC EcoPart is set in the “Installer/Settings/Heat pumps
1, 2, 3” menu under “Prio EcoAir/EcoPart”. 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 is excellent in installations where, for example, bedrock/
ground source heat pumps are designed with too much focus on “saving”
etc. An air/water heat pump may then be used to allow the bedrock more
time to “recover” and to provide increased output of the installation.
Remember that only one heat pump can be connected via the diverting
valves and charge hot water in the upper tank.
See also Heat pump Menu in the Detail Description Menus chapter
(Installer/Settings/Heat pump A1-A3)