Connecting Sensors - Viessmann VITOTRONIC 300 Installation And Service Instructions Manual

Vitotronic 300, GW5B & MW1B Installation and Service

Connecting Sensors

Legend
Outside temperature sensor
!
§/? Common supply temperature sensor
%A DHW tank temperature sensor 1
DHW tank temperature sensor 2 for primary
%B
store system (optional accessory, not used)
Return temperature sensor T2
aJB
or
Temperature sensor primary store system
(optional accessory, not used)
Installation, Vitotronic 300-K
Installation point for outside temperature sensor
H North or north-western wall, 6.6 to 8.2 ft. (2 to 2.5 m)
above ground level; in multi storey buildings, in the
upper half of the second floor
H Not above windows, doors or ventilation outlets
H Not immediately below balconies or gutters
H Never render over
Outside temperature sensor connection
Two wire communication cable 18 AWG
31