Viessmann VITOCAL 300-G Installation And Service Instructions Manual page 159

Diagnosis (service scans)
Two stage (type BW/BWS):stages 1
and 2
EEV 1+2 (last run)
Ü
Heat pump 1
tpe °C : 19.8
tpa °C : 11.3
tse °C : 22.2
tsa °C : 31.5
p0 bara : 6.2
pc bara : 14.1
Err/Msg : 00000001
Back with
Displays
Display Explanation
tpe °C Brine inlet temperature
tpa °C Brine outlet temperature
tse °C Secondary circuit return temperature
tsa °C Secondary circuit flow temperature
p0 bara Evaporation pressure
pc bara Condensation pressure
Err/Msg Last fault information code before a compressor shutdown; display
system (see page 155) and explanation (see page 157) as before.
Compressor runtime (hours run
according to load classes)
Single stage (type BW)
Runtime compressor
Ü
h
Load class
1
?
Runtime
Select with
(cont.)
2
19.8
11.3
22.2
31.5
6.2
14.1
00000001
ä
3 4 5
230h
Service menu:
1. Press OK + å simultaneously for
approx. 4 s.
2. "Diagnosis"
3. "Heat pump"
4. "EEV module (last run)"
Two stage (type BW/BWS): stage 1
(type BW)
Runtime compressor 1
Ü
h
Load class
1
?
Runtime
Select with
Service menu:
1. Press OK + å simultaneously for
approx. 4 s.
2. "Diagnosis"
Troubleshooting
3 4 5
230h
159