Outside Temperature Sensor; External Demand Via Switching Contact - Viessmann VITODENS 200-W Installation And Service Instructions Manual

Installation sequence
Electrical connections

Outside temperature sensor !

For fitting the wireless outside tempera-
ture sensor (wireless accessory):
Wireless base station installation
and service instructions
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

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).
18
(cont.)
■ 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
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.