Viessmann VITODENS 343-F WS4A Installation And Service Instructions Manual page 52

Commissioning, inspection, maintenance
Further details regarding the individual steps
Required coding
Operation with natural gas (delivered condition)
or
Operation with LPG
System version 4
One heating circuit without mixer A1 and one heating circuit with mixer M2
with system separation
! Outside temperature sensor
? Flow temperature sensor
sÖ Heating circuit pump
aVG KM BUS
aBH Power supply (extension kit)
A Solar collectors
B Collector temperature sensor
C DHW circulation pump
D DHW
52
(cont.)
E Cold water
F High limit thermostat (underfloor
heating)
G Underfloor heating circuit
H Heating circuit
K Extension kit for a heating circuit
with mixer
L Heat exchanger for system
separation
Address
82:0
82:1