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5 Installation
Kol1
Kol2-P
Kol1-P
Fig. 5.8 Hydraulic plan 2
Designation in
Component
hydraulic plan/
wiring diagram
I, II, III
Option for connecting to different heaters for
reheating the cylinder
C1/C2
Connections for controlling the heating appli-
ances for reheating the cylinder
KW
Cold water
HZ-K
Heating circuit(s)
LegP
Anti-legionella pump (optional)
EP
Electric heating rod (optional)
Kol1-P
Collector pump 1
Kol2-P
Collector pump 2
Kol 1
Collector sensor 1
Sp1
Cylinder sensor 1
Sp2
Cylinder sensor 2
S
Contactor for optional electric heating element
1
Control contactor for optional electric heating
element
2
230 V mains supply for optional electric heat-
ing element
230 V
230 V mains supply
Table 5.1 Key to Fig. 5.8 and Fig. 5.9
16
230 V
2
S
1
Sp1
EP
I
C1/C2
C1/C2
KW
Installation and maintenance instructions auroSTEP plus 0020077748_FT1
II
III
C1/C2
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