Contact Thermostat; Immersion Temperature Sensor; Solar Control Module, Type Sm1 - Viessmann VITODENS 200-W Technical Manual

Control units
(cont.)
Specification
Lead length
Setting range
Switching differential
Breaking capacity

Contact thermostat

Part no. 7151 729
May be used as a maximum temperature limiter for underfloor heating
systems (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.
0
7 2 1 3

Immersion temperature sensor

Part no. 7179 488
To capture the low loss header temperature.

Solar control module, type SM1

Part no. 7429 073
Specification
Construction
The solar control module contains:
■ PCB
■ Connection terminals for:
– 4 sensors
– Solar circuit pump
– KM BUS
– Power supply (on-site ON/OFF switch)
■ PWM output for controlling the solar circuit pump
■ 1 relay for switching a pump or valve
Collector temperature sensor
For connection inside the appliance.
On-site extension of the connecting lead:
■ 2-core lead, length max. 60 m with a cross-section of 1.5 mm
per)
■ Never route this lead immediately next to 230/400 V cables
Lead length
IP rating
Sensor type
VITODENS 200-W
Setting scale
4.2 m, fully wired Stainless steel sensor well
30 to 80 °C DIN reg. no.
max. 11 K
6(1.5) A 250 V~
Specification
Lead length
Setting range
Switching differential
Breaking capacity
Setting scale
DIN reg. no.
Specification
Lead length
IP rating
Sensor type
Permissible ambient temperature
– during operation
– during storage and transport
Permissible ambient temperature
– during operation
– during storage and transport
Cylinder temperature sensor
For connection inside the appliance.
On-site extension of the connecting lead:
■ 2-core lead, length up to 60 m with a cross-section of
1.5 mm
■ Never route this lead immediately next to 230/400 V cables
Lead length
IP rating
Sensor type
Permissible ambient temperature
– during operation
– during storage and transport
2 (cop-
For systems with Viessmann DHW cylinders, the cylinder temperature
sensor is installed in the threaded elbow (see chapter "Specification"
of the relevant DHW cylinder and chapter "Installation accessories")
in the heating water return.
2.5 m
IP 32 to EN 60529; ensure
through design/installation
NTC 20 kΩ at 25 °C
inside the casing
R ½" x 200 mm
DIN TR 116807
or
DIN TR 96808
4.2 m, fully wired
30 to 80 °C
max. 14 K
6(1.5) A 250V~
inside the casing
DIN TR 116807
or
DIN TR 96808
3.75 m, fully wired
IP 32
NTC 10 kΩ at 25 °C
0 to +90 °C
–20 to +70 °C
−20 to +200 °C
−20 to +70 °C
2
(copper)
3.75 m
IP 32 to EN 60529; ensure
through design/installation
NTC 10 kΩ at 25 °C
0 to +90 °C
−20 to +70 °C
5
VIESMANN
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