20
Plug
Component
Single boiler system
Multi boiler system
aJ
B
One of the following temperature sensors:
■
Temperature sensor cylinder loading sys-
tem
X
—
■
T2 return temperature sensor
X
X
aVD
.1/
aVD
.2
External demand
X
X
aVD
.2/
aVD
.3
External demand
X
X
aVG
KM-BUS subscribers
X
X
aVH
.1/
aVH
.2
External changeover, stepped/modulating
burner
X
X
aVH
.2/
aVH
.3
External demand
X
X
Additional external functions via EA1 extension:
■
Single boiler system: See page 38.
■
Multi boiler system: See page 43.
B
Connections to the 230 V~ PCB
Plug
Component
Single boiler system
Multi boiler system
sÖ
A1
One of the following circulation pumps:
■
Primary cylinder loading pump for cylin-
der loading system
X
—
■
Circulation pump for flue gas/water heat
exchanger
X
X
or
Switching output for flow rate reduction
(Therm-Control)
X
X
sA
One of the following circulation pumps:
■
Circulation pump for cylinder heating
X
—
■
Secondary cylinder loading pump for cyl-
inder loading system
X
—
sL
One of the following circulation pumps:
■
Shunt pump
X
X
■
Boiler circuit pump
X
X
■
Boiler circuit pump with butterfly valve
function
X
X
fÖ
Power supply
X
X
fA
Burner stage 1
X
X
gÖ
Central fault message facility
X
X
gS
A1
One of the following functions:
■
Motorised butterfly valve
—
X
■
Mixing valve for return temperature con-
trol
X
X
■
Mixing valve, heat exchanger set
X
—
lÖ
One of the following functions:
■
Burner stage 2
X
X
■
Modulating burner
X
X
Electrical connections
Overview of electrical connections
(cont.)
5863679
Installation
Содержание Vitotronic 11 CC1E
Страница 111: ...111 PCB 230 V Fig 46 Connection and wiring diagrams Connection and wiring diagram cont 5863679 Appendix...
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