13
|
Troubleshooting
Installer reference guide
178
C08AF + EHYKOMB33A
Daikin Altherma R Hybrid
4P471761-1E – 2020.10
13.3.7 Symptom: The space is NOT sufficiently heated at low outdoor temperatures
Possible causes
Corrective action
Gas boiler operation is not activated
Check and make sure that:
▪
The gas boiler is switched On and is
NOT in standby mode.
▪
The communication cable between
the gas boiler and the indoor unit is
properly mounted.
▪
There is no error code on the gas
boiler display.
The gas boiler equilibrium temperature
has not been configured correctly
Increase the "equilibrium temperature"
to activate gas boiler operation at a
higher outdoor temperature. Go to:
▪
[A.5.2.2] >
Installer settings
>
Heat
sources
>
Boiler
>
Equilibrium temp.
OR
▪
[A.8] >
Installer settings
>
Overview settings
[5‑01]
There is air in the system.
Purge air manually or automatically. See
the air purge function in the
"Commissioning" chapter.
Too much heat pump capacity is used
for heating domestic hot water (applies
only to installations with a domestic hot
water tank)
Check and make sure that the "space
heating priority" settings have been
configured appropriately:
▪
Make sure that the "space heating
priority status" has been enabled. Go
to [A.8] >
Installer settings
>
Overview settings
[5‑02]
▪
Increase the "space heating priority
temperature" to activate backup
heater operation at a higher outdoor
temperature.
Go
to
[A.8]
>
Installer settings
>
Overview
settings
[5‑03]
13.3.8 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.