Daikin Altherma ERHQ011-014-016BA, Руководство по установке для специалистов

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12 Troubleshooting
Installer reference guide
81
ERHQ+ERLQ011~016 + 16CBV
Daikin Altherma – Low temperature split
4P449970-1 – 2016.06
12.3.6 Symptom: The space is NOT sufficiently
heated at low outdoor temperatures
Possible causes Corrective action
If the system contains a backup
heater: backup heater operation
is not activated Check and make sure that:
▪ The backup heater operation
mode is enabled. Go to:
▪ [A.5.1.1] > Installer settings
> Heat sources > Backup
heater > Operation mode
[4‑00]
▪ The backup heater overcurrent
fuse has not been turned off. If
it has, check the fuse and turn
it back on.
▪ The thermal protector of the
backup heater has not been
activated. If it has, check the
following, and then press the
reset button in the switch box:
▪ The water pressure
▪ Whether there is air in the
system
▪ The air purge operation
If the system contains a backup
heater: the backup heater
equilibrium temperature has not
been configured correctly Increase the "equilibrium
temperature" to activate the
backup heater operation at a
higher outdoor temperature. Go
to:
▪ [A.5.1.4] > Installer settings >
Heat sources > Backup heater
> 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]
12.3.7 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.
12.3.8 Symptom: Decoration panels are pushed
away due to a swollen tank
Possible causes Corrective action
Failing or blocked pressure relief
valve. Contact your local dealer.
12.3.9 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 When the Domestic hot water >
Type > Reheat or
sched. is selected, it is
recommended to program the
start-up 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).
When the Domestic hot water >
Type > Scheduled only is
selected, it is recommended to
program a Storage eco 3 hours
before the scheduled start-up of
the disinfection function to
preheat the tank.
The disinfection operation was
stopped manually: with the user
interface displaying the DHW
home page and its user
permission level set to Installer,
the
button was pressed
during disinfection operation.
Do NOT press the button
while the disinfection function is
active.
12.4 Solving problems based on error
codes
When a problem happens, an error code appears on the user
interface. It is important to understand the problem and to take
countermeasure before resetting the error code. This should be
done by a licensed installer or by your local dealer.
This chapter gives you an overview of all error codes and the
content of the error code as it appears on the user interface.
For a more detailed troubleshooting guideline for each error, please
see the service manual.
12.4.1 Error codes: Overview
Error codes of the indoor unit
Error code Detailed error
code Description
7H 01 Water flow problem.