Viessmann Vitocal 300-G BW, Installation And Service Instructions Manual

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Access
■ Main menu
■ Device settings
■ Contractor level
■ Further menu items
■ Diagnosis heat pump module
The information line (second line from
the top of the display) contains the fol-
lowing details:
0000 0000 0000
■ The last 4 digits designate the version
of the hardware and software of the
heat pump module.
Terms and values of the display details:
Err/Msg "Error Message" = Error message
Tsh, Tc Set temperature superheating/set condensation temperature [°C]
Pmop
Max. operating pressure [bar absolute]
Ts, Tc Actual suction gas temperature/actual condensation temperature [°C]
Ps Actual suction pressure [bar absolute]
Pc Actual condensation pressure [bar absolute]
Tl Actual liquid gas temperature [°C]
x Set valve position [%]
P "– – –"
Err Fault/Error (with the associated information)
The lower display line contains a left hand and right hand group of figures:
Temperatures and pressures
Key "
Ó
T/P " enables the diagnosis page "Temperatures and pressures" to be called
up.
■ Temperatures and pressures are dis-
played as initially captured values dur-
ing the last compressor operation.
■ These values are saved when the
appliance is shut down. They are only
overwritten when the compressor
starts again.
Values for temperatures and pressures:
tpe Primary input heat pump 1
tpa Primary output heat pump 1
tse Secondary return heat pump 1 and
2
tsa Secondary flow for heat pump 1
p0 Evaporation pressure heat pump 1
and 2
pc Condensation pressure heat
pump 1 and 2
Troubleshooting
Control unit diagnostics
(cont.)
5368 522 UAE