Viessmann Vitodens 200 Technical Manual page 39

Immersion thermostat
As temperature limiter for limiting the max.
temperature of underfloor heating systems,
part no. 7151 728
"
R
The temperature limiter is installed into
the heating flow and switches the heating
circuit pump OFF if the flow temperature
is too high.
With connecting cable (4.2 m long) and
system plug.
Setting range: 30 ºC to 80 ºC
Switching differential: max. 11 K
Breaking capacity: 6 (1.5) A 250 V~
Setting scale: inside casing
Stainless steel sensor well: R ½" × 200 mm
DIN reg. no: DIN TR 777 03
or
DIN TR 968 03
or
DIN TR 1103 02
or
Contact thermostat
As temperature limiter for limiting the
max. temperature of underfloor heating
systems,
part no. 7151 729
(only in conjunction with metallic pipes)
The temperature limiter is installed into
the heating flow and switches the heating
circuit pump OFF if the flow temperature
is too high.
With connecting cable (4.2 m long) and
system plug.
Setting range: 30 ºC to 80 ºC
Switching differential: max. 14 K
Breaking capacity: 6 (1.5) A 250 V~
Setting scale: inside casing
DIN reg. no: DIN TR 777 03
or
DIN TR 968 03
or
DIN TR 1103 02
VITODENS
Vitotronic 200 and Vitotronic 333 accessories
Function extension 0 - 10 V
for the Vitotronic 333
(KM BUS user),
part no. 7174 718
With cables and plug-in connector fÖ and
aVG supplied.
H to default a set flow temperature via a
0 - 10 V input for one temperature range
from 10 ºC to 100 ºC
H to control a feed pump when
connecting Vitotronic 050, e. g. in a
sub-station
or
H to signal reduced mode and to regulate
the heating circuit pump to a lower
speed
Rated voltage: 230 V~
Rated frequency: 50 Hz
Power consumption: 1 W
Nominal rating of the
relay output: 8 (4) A 250 V
Protection level: IP 30 to
EN 60 529,
safeguard
through
design/
installation
Permissible ambient
temperature
H for operation: 20 ºC to +40 ºC
H during storage
and transport: 20 ºC to +65 ºC
LON communication module
PCB for data exchange with the
Vitotronic 050, Vitocom 300 and for
connecting to a higher level building
management systems.
H for integration into the Vitotronic 200
(not for the Vitodens 343)
part no. 7179 113
H for installation into the Vitotronic 333
part no. 7172 174
Cascade communication module
for the Vitotronic 100
part no. 7192 768
For data exchange between the cascade
control unit Vitotronic 333 and
Vitotronic 100.
PCB for installation into the Vitotronic 100
of the gas fired wall mounted boiler.
1.2 Specification
LON, cable for data exchange between
control units
(Vitotronic 333 to Vitotronic 050),
part no. 7143 495
Cable length 7 m, fully wired.
Extension of the connection cable
H Installation distances between
7 and 14 m:
2 connecting cables,
part no. 7143 495
1 LON coupling RJ 45,
part no. 7143 496
H Installation distances between
14 and 900 m:
2 connecting cables,
part no. 7143 495
2 core cable,
CAT 5 cable, screened, or
(
JY (St) Y 2 × 2 × 0.8 on-site
LON junction box RJ 45, CAT 6,
part no. 7171 784
(2 pieces)
1
)
39