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38 Installatie- en onderhoudshandleiding geoTHERM 0020250182_00
Code
Betekenis Oorzaak
Oplossing
F.735
Verdampingstemperatuur te hoog Temperatuur in het afgiftecircuit (CV-
bedrijf) resp. omgevingscircuit (koel-
bedrijf) te hoog voor compressorbe-
drijf
Voeding van externe warmte in het
omgevingscircuit
Inbreng externe warmte verlagen
of onderbreken
Defroster controleren (verwarmt
hoewel "Uit" in de sensor-/actor-
test?)
EEV controleren (loopt de
EEV in de eindaanslag?
sensor/actortest gebruiken)
Lagedruksensor en compressor-
inlaatvoeler controleren
F.740
Omgevingscircuit: inlaattemperatuur te laag Inlaattemperatuur in het omgevings-
circuit te laag voor compressorstart
Verwarmen:
VWS omgevingscircuitinlaattempera-
tuur < -10 °C
Dimensionering van het om-
gevingscircuit controleren voor
VWS
Sensoren controleren
F.741
Afgiftecircuit: retourtemperatuur te laag Retourtemperatuur in het afgiftecir-
cuit te laag voor compressorstart
Verwarmen:
Retourtemperatuur < 5 °C
Koelen:
Retourtemperatuur < 7 °C
Sensoren controleren
Koelingsmengklep controleren
F.742
Omgevingscircuit: inlaattemperatuur te hoog Inlaattemperatuur in het omgevings-
circuit te hoog voor compressorstart
Verwarmen:
Omgevingscircuitinlaattemp. > 25 °C
Omgevingscircuit controleren
Sensoren controleren
Omgevingcircuitpomp controle-
ren
Koelingsmengklep controleren
Afsluitklep in het omgevingscir-
cuit controleren (indien aanwe-
zig)
F.743
Afgiftecircuit: retourtemperatuur te hoog Retourtemperatuur in het afgiftecir-
cuit te hoog voor compressorstart
Verwarmen:
Retourtemperatuur > 55 °C
Koelen:
Retourtemperatuur > 35 °C
Sensoren controleren
CV-pomp controleren
Terugslagkleppen controleren
(indien aanwezig)
2-zonekit controleren (indien
aanwezig)
F Voelerkenwaarden externe temperatuursensor VR 10
Temperatuur (°C) Weerstand (Ohm)
-40 87879
-35 63774
-30 46747
-25 34599
-20 25848
-15 19484
-10 14814
-5 11358
0 8778
5 6836
10 5363
15 4238
20 3372
25 2700
30 2176
38


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