Immersion Thermostat; Contact Thermostat; Lon Communication Module; Open Therm Extension - Viessmann VITODENS 242-F Technical Manual

Control units
(cont.)

Immersion thermostat

Part no. 7151 728
May be used as a maximum temperature limiter for underfloor heating
systems.
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

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

LON communication module

PCB for data exchange with the Vitotronic 200-H, Vitocom 200 and for
connecting to a higher level building management system.
7

Open Therm extension

Part no. 7426 563
PCB for the connection of an external Open Therm controller.
VIESMANN
92
Specification
Lead length
Setting range
Switching differential
Breaking capacity
Setting scale
Stainless steel sensor well
DIN reg. no.
Specification
Lead length
Setting range
Switching differential
Breaking capacity
Setting scale
DIN reg. no.
Part no. 7179 113
For installation in the Vitotronic.
4.2 m, fully wired
30 to 80 °C
max. 11 K
6(1.5) A 250 V~
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
VITODENS