22
Fitting location for outside tempera-
ture sensor
■ North or north-western 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 connec-
tion
2-core lead, length max. 35 m with a
cross-section of 1.5 mm
2
External demand via switching contact
Connection options:
■ Extension EA1 (accessory, see sepa-
rate installation instructions).
■ Plug
lH
.
Burner operation is load-dependent if the
contact is closed. The boiler water is
heated to the value set in coding address
"9b" in group
"General"
/
1
. The boiler
water temperature is limited by this set
value and the electronic maximum limit
(coding address "06" in group
"Boiler"
/
2
).
!
Please note
'Live' contacts lead to short cir-
cuits or phase failure.
The external connection
must be
potential-free
and comply with
the requirements of safety cate-
gory II.
Installing the boiler
Electrical connections
(cont.)
5773 216 GB
Содержание Vitodens 222-F B2TA series
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