E Temperature Sensor At Bottom Of Dhw Cylinder - Viessmann VITOTRONIC 200 Service Instructions Manual

600E Temperature sensor at bottom of DHW cylinder

If a second temperature sensor is installed at the bot-
tom of the DHW cylinder, DHW cylinder heating in the
operating "Standard" and "Temp. 2" status is stop-
ped via this temperature sensor. This results in the
optimisation of DHW cylinder heating.
6011 Max. runtime DHW heating in heating mode
If during DHW heating there is a simultaneous heat
demand from the heating circuits:
The DHW water is heated for the set duration. Central
heating then starts, even if the set cylinder tempera-
ture has not yet been reached. Following expiry of
"Max. interruption of DHW heating for central heat-
ing 6012" DHW heating is switched on again.
Requirement: Priority for DHW heating has been set
(factory setting).
6012 Max. interruption of DHW heating for central heating
If during DHW heating there is a simultaneous heat
demand from the heating circuits:
The DHW is heated for the duration "Max. runtime
DHW heating in heating mode 6011". Central heat-
ing then starts, even if the set cylinder temperature has
not yet been reached. DHW heating is restarted follow-
ing expiry of the set duration.
6014 Enable booster heaters for DHW heating
An immersion heater integrated into the DHW cylinder
can be enabled for DHW reheating. If the set cylinder
temperature is not achieved with the heat pump, the
heat pump control unit activates the immersion heater.
Note
Observe setting for "Hysteresis DHW temperature
booster heater 6008".
!
Value Meaning
"0" No cylinder temperature sensor at the bottom.
"1" Cylinder temperature sensor at the bottom is
installed and enabled.
!
Note
If there is no heat demand from the heating circuits,
the DHW cylinder will be heated independent of the set
duration up to reaching the set value ("Set DHW tem-
perature 6000" + "Hysteresis DHW temperature
heat pump 6007").
Setting in min
!
Requirement: Priority for DHW heating has been set
(factory setting).
Setting in min
!
Value Meaning
"0" Immersion heater is not enabled for DHW re-
heating.
"1" Immersion heater is enabled for DHW reheat-
ing.
Note
If an instantaneous heating water heater is
additionally installed in the secondary circuit
flow, this is only switched on for protecting the
DHW cylinder from frost.
Parameter group DHW
219