External Extension H5, Part No. 7199 249; External Burner Blocking; External Safety Equipment; Temporary Operation (Burner Stage 1) - Viessmann VITOTRONIC 200 Installation And Service Instructions Manual

External extension H5, part no. 7199 249

X12 41
41 150
41
Fig.62
Vitotronic
A
External extension H5
B
C Burner
ON ON
STB N STB TR TR
A
150
Fig.63
Jumper "STB" "STB"
A –
Jumper "TR" "ON/TR"
B –

External burner blocking

C
(floating contact)
External burner blocking
1. Remove jumper "TR"
–
2. Connect the floating contact.
Opening this contact leads to a controlled shut-
down.

External safety equipment

1. Remove jumper "STB"

Temporary operation (burner stage 1)

Insert jumper "TR" "ON/TR" across "TR"
–
C
D P
B
E
P
"ON/TR".
"STB".
–
"ON".
–
Connections at plug aBÖ :
■ External burner blocking
■ External safety equipment
■ Provisional burner operation
Flue gas damper
■
!
Please note
'Live' contacts lead to short circuits or phase fail-
ure.
The external connections must be potential-
free.
Plug must remain plugged in, even if no connec-
aBÖ
tion is made.
Minimum pressure limiter
D
Other external safety equipment
E
!
Please note
Connecting external control units can damage
the boiler.
Connect only safety shutdown equipment, e.g. a
temperature limiter, to these terminals.
There is no frost protection for the heating
system while the burner is switched off. The
boiler is not held at the lower boiler water tem-
perature.
2. Connect the external safety equipment in series.
Components
93