Min. Primary Circuit Inlet Temperature In Operation - Viessmann VITOTRONIC 200 Service Instructions Manual

7470 Min. primary circuit inlet temperature in operation

If the primary circuit flow temperature (brine inlet into
the heat pump) falls below the set value during heat
pump operation, the compressor speed is regulated
down depending on the degree of undershooting. If the
min. compressor speed is reached in the process, the
compressor and the primary pump stop after
"Response delay, probe protection 7471".
7471 Response delay, probe protection
If the primary circuit flow temperature (brine inlet into
the heat pump) falls below the "Min. primary circuit
inlet temperature in operation 7470" during heat
pump operation, the compressor speed is regulated
down depending on the degree of undershooting. If the
min. compressor speed is reached in the process, the
compressor and the primary pump stop after expiry of
the set duration.
Parameter group Primary source
!
≙
Setting 1 0.1 °C
!
Setting in s
235