Sensor Resistance Curves - Viessmann Vitocal 300-G Installation And Service Instructions Manual

Sensor resistance curves

Temperature sensor
Room temperature sensors:
Capturing element made of "Ni 500"
Flow temperature sensors heating/
cooling circuit
Outside temperature sensor
Room temperature sensor
Appliance fuse protection
Note
The appliance fuse is located on
PCB 1 of the message and safety
components (cross connect circuit
board).
See page 63 and page 175.
Fuse F1:
6.3 A slow, 250 V
Max. power loss 2,5 W
Further sensors
Further sensors:
Capturing element made of "Pt 500"
DHW cylinder sensors, top/bottom
Heating water buffer cylinder sensor
System flow sensor
External heat source sensor
All sensors are located inside the
heat pump module
Danger
Touching 'live' components can
result in the transfer of danger-
ous body currents.
Before working on the equip-
ment, always ensure that the
power circuit is also at zero
volt.
Removing the fuse from the
programming unit does not
switch the power circuit to
zero volt.
Components
173