33
A
B
C
D
STB
N STB TR TR
ON ON
150
P
P
P
Fig. 27
A
Jumper "STB"
–
"STB"
B
Low water indicator, minimum pressure limiter
C
Maximum pressure limiter
D
Further safety equipment
1.
Remove jumper "STB"
–
"STB".
2.
Connect the external safety equipment in series to
plug
aBÖ
.
Note
With multiple safety devices, the plug-in adaptor for
external safety equipment (accessories) can also be
connected: See chapter "Plug-in adaptor for external
safety equipment"
Provisional burner operation
Connection at
plug
aBÖ
.
STB
A
EIN
TR
EIN
TR
N
STB
Fig. 28
A
Jumper "TR"
–
"ON/TR"
Insert jumper "TR"
–
"ON/TR" across "TR"
–
"ON".
The boiler heats up with burner stage 1 or with the
lower heating output/base load. Shutdown takes place
via the temperature controller.
Making the LON connection
The Viessmann LON is designed for "line" bus topol-
ogy with a terminator at both ends (accessories).
The transfer distances for LON are subject to the elec-
trical properties of the relevant cable. For this reason,
only use the specified cable types. Use only one cable
type within each LON.
Electrical connections
Connecting external safety equipment
(cont.)
5863679
Installation
Summary of Contents for Vitotronic 11 CC1E
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