45
Outside temperature sensor
!
Fitting location for outside temperature sensor
■
North or north-westerly wall, 2 to 2.5 m above
ground level; in multi storey buildings, in the upper
half of the second floor
■
Not above windows, doors or vents
■
Not immediately below balconies or gutters
■
Never render over.
Outside temperature sensor connection
Connect outside temperature sensor on plug
!
to
heat management unit. See page 42.
2-core lead, length up to 35 m with a cross-section
of 1.5 mm
2
Floating switching contact connection
Connection at plug
lH
One
of the following functions can be connected:
■
External demand
■
External blocking
■
DHW circulation pump external demand (pushbutton
function, pump runs for 5 min). Cannot be connected
with Vitodens 222-W.
■
Room temperature controller (room thermostat)
For room temperature-dependent operating mode
A
lH
N
?
1 L
Fig. 39
A
Floating contact
Assigning functions in the commissioning assis-
tant
See commissioning assistant in "Commissioning".
Installation sequence
Electrical connections
(cont.)
5853335
Installation
