Immersion Temperature Sensor; Internal Extension H1; Internal Extension H2; Extension Am1 - Viessmann VITODENS 200-W Technical Manual

Control units
(cont.)

Immersion temperature sensor

Part no. 7179 488
To capture the low loss header temperature.
Specification
Lead length
IP rating

Internal extension H1

Part no. 7179 057
Using the extension enables the following functions to be achieved:
Function
– Connection of an external safety solenoid valve (LPG)
and one of the following functions (only for Vitodens 200-W and 300-W):
– Connection of a heating circuit pump (stepped) for a directly connected heating circuit
– Connection of a central fault message
– Connection of a circulation pump for cylinder heating
– Only with the Vitotronic 200, type HO1:
Connection of a DHW circulation pump
Specification
Rated voltage 230 V~
Rated frequency 50 Hz

Internal extension H2

Part no. 7179 144
Using the extension enables the following functions to be achieved:
Function
– External extractor interlock
and one of the following functions (only for Vitodens 200-W and 300-W):
– Connection of a heating circuit pump (stepped) for a directly connected heating circuit
– Connection of a central fault message
– Connection of a circulation pump for cylinder heating
– Only with the Vitotronic 200, type HO1:
Connection of a DHW circulation pump
Specification
Rated voltage 230 V~
Rated frequency 50 Hz

Extension AM1

Part no. 7429 152
Function extension inside the casing for wall mounting.
7
Using the extension enables up to two of the following functions to be achieved:
Function
– Switching the DHW circulation pump (only with the Vitotronic 200, type HO1A)
– Switching the heating circuit pump for a directly connected heating circuit
– Switching the circulation pump for cylinder heating (not for boilers with integral DHW cyl-
inder)
VIESMANN
90
Sensor type
Permissible ambient temperature
– during operation
3.75 m, fully wired – during storage and transport
IP 32 acc. to EN 60529
ensure through appropriate
design/installation
PCB for integration into the control unit (for Vitodens 222-W and 300-
W part of the standard delivery).
PCB for integration into the control unit (used with the Vitodens 222-
W and 300-W instead of the internal extension H1).
Viessmann NTC 10 kΩ at
25 °C
0 to +90 °C
−20 to +70 °C
Rated breaking capacity of the relay output
1(0.5) A 250 V~
Rated breaking capacity of the relay output
Rated breaking capacity of the relay output
every 2(1) A 250 V~
2(1) A 250 V~
6(3) A 250 V~
2(1) A 250 V~
total max. 4 A~
VITODENS