148
t
A
Set DHW temperature
B
Heat pump switching hysteresis
("
Hysteresis
")
C
Instantaneous heating water heater
switching hysteresis ("
Hyst. boos-
ter heater
")
D
Actual DHW temperature at the
upper cylinder temperature sensor
E
Heat pump control state
F
Instantaneous heating water heater
control state
G
OFF
H
ON
Note
The value selected for "Hysteresis"
should be higher than the expected tem-
perature drop due to heat losses in a sin-
gle night (approx. 5 K).
A lower value for "Hyst. booster
heater" increases the proportion of elec-
trical DHW heating, i.e. the system effi-
ciency drops.
Access
■ "
Device settings
"
■ "
Programming
"
■ "
DHW
"
■
y
to
"Hysteresis"
or
y
to
"Hyst. booster heater"
■
5
or
%
Hysteresis
Standard setting
7,0 K
Setting range
1,0 to 10,0 K
Hysteresis booster heater
Standard setting
10,0 K
Setting range
2,0 to 30,0 K
Start optimisation DHW
Parameter
■ 6009
Operating instructions
Stop optimisation DHW
Parameter
■ 600A
Operating instructions
DHW control settings
Hysteresis/Hysteresis booster heater
(cont.)
5368 522 UAE
Summary of Contents for Vitocal 300-G BW
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