Viessmann VITOCAL 300-G Installation And Service Instructions Manual page 160

Troubleshooting
Diagnosis (service scans)
3. "Heat pump"
4. "Runtime compressor"
The compressor hours run ("Hours
run") can be scanned with
"Load class".
Assigning the load classes:
Load class Hours run for ΔT
1 ΔT
2 25 K < ΔT
3 32 K < ΔT
4 41 K < ΔT
5 ΔT
Energy statement
The following information can be scan-
ned in the "Energy statement" menu:
■ "Energy statement htg": electrical
energy used to operate the heat
pump and the amount of heating
energy transferred into the heating
system.
■ "Energy statement DHW": electrical
energy used to operate the heat
pump and the amount of energy trans-
ferred into the heating system for DHW
heating.
■ "SPF heating": seasonal perform-
ance factor for heating
■ "SPF DHW": seasonal performance
factor for DHW heating
■ "SPF overall": seasonal performance
factor overall
Service menu:
1. Press OK + å simultaneously for
approx. 4 s.
2. "Diagnosis"
3. "Energy statement"
160
(cont.)
for every
V/K
< 25 K
V/K
< 32 K
V/K
< 41 K
V/K
< 50 K
V/K
> 50 K
V/K
ΔT Differential, evaporation and con-
V/K
densation temperature
Energy statement htg
Ü
kWh
è
q
Wk. 23/09
Select with
The energy values
ned with for each calendar week
"Wk." of the past year.
Note
In order to record realistic data, the
parameter "Output" must be set cor-
rectly.
23
q 277 è 831
, , can be scan-