Start Optimisation Dhw - Viessmann Vitocal 300-G Installation And Service Instructions Manual

DHW control settings
Hysteresis/Hysteresis booster heater
A Set DHW temperature
B Heat pump switching hysteresis
("Hysteresis")
C Instantaneous heating water hea-
ter switching hysteresis ("Hyst.
booster heater")
D Actual DHW temperature at the
upper cylinder temperature sen-
sor
E Heat pump control state
F Instantaneous heating water hea-
ter control state
G OFF
H ON

Start optimisation DHW

Parameter
6009
154
(cont.)
Note
The value selected for "Hysteresis"
should be higher than the expected
temperature drop due to heat losses
in a single night (approx. 5 K).
A lower value for "Hyst. booster hea-
ter" increases the proportion of elec-
trical DHW heating, i.e. the system
efficiency drops.
Access
"Device settings"
"Programming"
"DHW"
y to"Hysteresis"
or
y to"Hyst. booster heater"
5 or %
Hysteresis
Standard setting
Setting range
Hysteresis booster heater
Standard setting
Setting range
Operating instructions
7,0 K
1,0 to 10,0 K
10,0 K
2,0 to 30,0 K