Compressor - Viessmann PLC VITOCAL 350-HT PRO Service Instructions For Contractors

Operating conditions and actuator tests

Compressor

Launch with
■ "Menu"
■ "Heat pump"
■ Symbol (compressor 1, 2 or 3)
Fig. 33 Example
The following information is displayed:
"Op." "Y"/"N"
■
Is the compressor on or off?
■ "Fault" "Y"/"N"
Is there a fault with the compressor?
■ "Hours run"
Display of hours run by the compressor
"Activations"
■
Display of compressor activation processes
Buttons:
"Control switch"
■
"ON" Enable compressor
"OFF" Block compressor
Note
are displayed bottom right
■ "Activations" "Reset"
The "Hours run" and "Activations" counters are
reset
(cont.)
■ "Restart block" "Reset"
The remaining time of the restart block is reset and
the button switches to "N"
■ "Oil sump heater" "Reset"
The remaining time that the oil sump heater must be
activated for is reset and the button switches to "N"
Note
If the oil sump heater has been switched off for an
extended period of time, it must be activated for sev-
eral hours before the heat pump can start.
Diagnosis
47