18
Outside temperature sensor
!
For fitting the wireless outside temperature sensor
(wireless accessory):
Wireless base station installation and service
instructions
Fitting location for outside temperature 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 connection
2-core lead, length max. 35 m with a cross-section of
1.5 mm
2
External demand via switching contact
Connection options:
■
EA1 extension (accessory, see separate installation
instructions)
■
Plug
lH
When the contact is closed, burner operation is load-
dependent. The boiler water is heated to the set value
selected in coding address "9b" in group
"General"/1
.
The boiler water temperature is limited by this set
value and by the electronic maximum limit (coding
address "06" in group
"Boiler"/2
).
!
Please note
Live contacts lead to short circuits or phase fail-
ure.
The external connection
must be floating
and
meet the requirements of protection class II.
Plug
lH
EA1 extension
A
lH
N
?
1 L
A
Floating contact (when connected, remove jumper
between L and 1)
B
[{S
DE
[{D
DE
[{A
DE
A
A
Floating contact
B
EA1 extension
Codes
■
"4b:1" in group
"General"/1
■
Effect of the function on the relevant heating circuit
pump:
Coding address "d7" in group
"Heating circuit"
(only
for weather-compensated control units)
■
Effect of the function on the circulation pump for cylin-
der heating:
Coding address "5F" in group
"DHW"/3
Codes
■
Set "3A" (DE1), "3b" (DE2) or "3C" (DE3) to 2 in
group
"General"/1
■
Effect of the function on the relevant heating circuit
pump:
Coding address "d7" in group
"Heating circuit"
(only
for weather-compensated control units)
■
Effect of the function on the circulation pump for cylin-
der heating:
Coding address "5F" in group
"DHW"/3
External demand via 0
–
10 V input
Connection at 0
–
10 V input to
EA1 extension
.
Installing the boiler
Electrical connections
(cont.)
5773 216 GB
Installation
Содержание B2TA
Страница 12: ...12 2 5 1 4 2x 3 Fig 5 Installing the boiler Removing the front panels 5773 216 GB Installation ...
Страница 13: ...13 1 2 SW17 Fig 6 Installing the boiler Siting and levelling the boiler 5773 216 GB Installation ...
Страница 23: ...23 4 1 5 2 2x 3 Fig 16 Installing the boiler Fitting the front panels 5773 216 GB Installation ...
Страница 101: ...101 Parts lists Overview of assemblies 5773 216 GB Components ...
Страница 107: ...107 Parts lists Hydraulics 5773 216 GB Components ...
Страница 118: ...118 0004 0002 0005 0006 0001 0003 Fig 77 Parts lists Miscellaneous 5773 216 GB Components ...
Страница 142: ...142 5773 216 GB ...
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