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CTC EcoZenith i555 Pro
E5
Y1
IN 3
IN 2
IN 1
OUT
B7
B1
G1
Y2
Y3
B3
G3
10
09
B2
G2
21
08
RAD.SYS 1
RAD.SYS 2
RAD.SYS 3
02
11
01
EL 1-3 a/b
E1/E4
B33
B6
B5
B15
B11
B12
B13
14.3.1
CTC EcoZenith i555 Pro – Radiator system
The CTC EcoZenith i555 Pro can be connected to three different radiator
systems with separate room sensors.
Mixing valve (Y1) is the main mixing valve and feeds heating circuit 1. Mixing
valves (Y2) and (Y3) for heating circuits 2 and 3 are sub-mixers. This means that
mixing valve (Y1) controls the maximum temperature to mixers (Y2) and (Y3).
For one or two sub-mixing valves (heating circuits 2 and 3) to be operative when
heating circuit 1 is not operative, valve (21) must be connected to radiator pump
(G1) so that the valve closes when the radiator pump for heating circuit 1 is not
operative. This is useful, for example, if floor heating in a bathroom is preferred
during the summer.
Note that the expansion vessel and safety valve for the heating circuit are not
included in the schematic diagram.
Also refer to the "Heating circuit" section in the "Detailed Menu Descriptions"
chapter (Installer/Settings/Heating Circuit 1-3).
i
Valve 21 must
be connected if
heating circuit 2 or
3 is used.
Summary of Contents for EcoZenith i555 Pro 1x230V
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Page 3: ...162 505 72 1 2020 09 22 Installation and Maintenance Manual CTC EcoZenith i555 Pro ...
Page 152: ...152 CTC EcoZenith i555 Pro 18 Wiring diagram relay card 3x400V ...
Page 153: ...153 CTC EcoZenith i555 Pro ...
Page 154: ...154 CTC EcoZenith i555 Pro 19 Wiring diagram relay card 1x230V ...
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Page 156: ...156 CTC EcoZenith i555 Pro 20 Wiring diagram relay card 3x230V ...
Page 157: ...157 CTC EcoZenith i555 Pro ...
Page 158: ...158 CTC EcoZenith i555 Pro 21 Wiring diagram for expansion card ...
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