Daikin Altherma 3 GEO, Руководство по установке для специалистов

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14 | Troubleshooting
Installer reference guide
221
EGSAH/X06+10UDA9W
Daikin Altherma 3 GEO
4P598592-1A – 2019.12
Possible causes Corrective action
Too much heat pump capacity is used
for heating domestic hot water Check if the Space heating
priority settings have been
configured appropriately:
▪ Make sure that the
Space heating
priority has been enabled.
Go to [9.6.1]:
Installer
settings > Balancing > Space
heating priority
[5‑02]
▪ Increase the "space heating priority
temperature" to activate backup
heater operation at a higher outdoor
temperature.
Go
to [9.6.3]:
Installer
settings > Balancing >
Priority temperature
[5‑03]
14.3.7 Symptom: The pressure at the tapping point is temporarily unusually high
Possible causes Corrective action
Failing or blocked pressure relief valve. ▪ Flush and clean the complete tank
including the piping between pressure
relief valve and the cold water inlet.
▪ Replace the pressure relief valve.
14.3.8 Symptom: Tank disinfection function is NOT completed correctly (AH-error)
Possible causes Corrective action
The disinfection function was
interrupted by domestic hot water
tapping Program the start-up of the disinfection
function when the coming 4 hours NO
domestic hot water tapping is expected.
Large domestic hot water tapping
happened recently before the
programmed start-up of the disinfection
function If in [5.6] Tank > Heat up mode the
mode Reheat only or Sc
reheat is selected, it is recommended
to program the start-up of the
disinfection function at least 4 hours
later than the last expected large hot
water tapping. This start-up can be set
by installer settings (disinfection
function).
If in [5.6] Tank > Heat up mode the
mode
Schedule only
is selected, it is
recommended to program a Eco action
3 hours before the scheduled start-up
of the disinfection function to preheat
the tank.
The disinfection operation was stopped
manually: [C.3]
Operation > Tank was
turned off during disinfection.
Do NOT stop tank operation during
disinfection.