Viessmann VITOTRONIC 200 Service Instructions Manual page 122

Diagnosis
System
(cont.)
3. "System"
4. "Integral"
Integral
"Heat pump for DHW"
"Electric heater for DHW"
"Ext. HS for DHW"
"Heat pump for HC"
"Electric heater for HC"
"Ext. HS for HC"
122
Ü
Heat pump for HC
Electric heater for HC
Heat pump for swimming pool
HP for cooling
Heat pump for HW buffer
Defrost
Fig. 19
A
B
C
Meaning
Starting the heat pump for DHW heating
Switching on the instantaneous heating wa-
ter heater and/or the immersion heater for
DHW reheating
Switching on the external heat generator
for DHW reheating
Starting the heat pump for central heating
Starting the instantaneous heating water
heater for central heating
Starting the external heat generator for
central heating
A
Integral
Back with
Integral
Condition of the integral
The integral increases.
The integral reduces.
No symbol: Integral does not change.
Current value of the integral in %, relative to the
associated start threshold/output default
Factory-set start threshold/
output default
Output-dependent controlled
heat pumps:
Output default from the curve
■
Heat pumps without output con-
trol:
0 or 100 %
■
—
—
"Start threshold 730E"
"Start threshold external heat
source 7B03"
B C
72
147
68
12
95
84
ä