10 Hand-Over To The User; Maintenance And Service; Overview: Maintenance And Service; Maintenance Safety Precautions - Daikin Altherma ERLQ004-006-008CA Reference Manual

To readout the status of an underfloor heating
screed dryout
1 Press .
2 The current step of the program, the total remaining time, and
the current desired leaving water temperature will be displayed.
INFORMATION
There is limited access to the menu structure. Only the
following menus can be accessed:
▪ Information.
▪ Installer settings > Commissioning > UFH screed
dryout.
To interrupt an underfloor heating screed dryout
When the program is stopped by an error, an operation switch off, or
a power failure, the U3 error will be displayed on the user interface.
To resolve the error codes, see
error codes" on page 67. To reset the U3 error, your User
permission level needs to be Installer.
1 Go to the underfloor heating screed dryout screen.
2 Press .
3 Press to interrupt the program.
4 Select OK and press .
Result: The underfloor heating screed dryout program is stopped.
When the program is stopped due to an error, an operation switch-
off, or a power failure, you can read out the underfloor heating
screed dryout status.
5 Go to [A.7.2]: > Installer settings > Commissioning > UFH
screed dryout > Dryout status > Stopped at and followed by the
last executed step.
6 Modify and restart the execution of the program.
10 Hand-over to the user
Once the test run is finished and the unit operates properly, please
make sure the following is clear for the user:
▪ Fill in the installer setting table (in the operation manual) with the
actual settings.
▪ Make sure that the user has the printed documentation and ask
him/her to keep it for future reference. Inform the user that he can
find the complete documentation on the url as earlier described in
this manual.
▪ Explain the user how to properly operate the system and what to
do in case of problems.
▪ Show the user what to do in relation to maintaining the unit.
▪ Explain the user about energy saving tips as described in the
operation manual.
11

Maintenance and service

NOTICE
Maintenance should preferably be carried out yearly by an
installer or service agent.
ERLQ004~008CA + EHVZ04+08S18CB
Daikin Altherma – Low temperature split
4P401676-1 – 2015.02
"12.4 Solving problems based on

10 Hand-over to the user

11.1 Overview: Maintenance and
service
This chapter contains information about:
▪ The yearly maintenance of the outdoor unit
▪ The yearly maintenance of the indoor unit
11.2

Maintenance safety precautions

DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING
NOTICE: Risk of electrostatic discharge
Before performing any maintenance or service work, touch
a metal part of the unit in order to eliminate static electricity
and to protect the PCB.
11.2.1

Opening the indoor unit

CAUTION
The front panel is heavy. Be careful NOT to jam your
fingers when opening or closing the unit.
You just need to remove the front panel of the unit to gain access to
most parts which need maintenance. In rare cases, you may also
need to remove the switch box.
11.3 Checklist for yearly maintenance
of the outdoor unit
Check the following at least once a year:
▪ Outdoor unit heat exchanger.
The heat exchanger of the outdoor unit can get blocked up due to
dust, dirt, leaves, etc. It is recommended to clean the heat
exchanger yearly. A blocked heat exchanger can lead to too low
pressure or too high pressure leading to worse performance.
11.4 Checklist for yearly maintenance
of the indoor unit
Check the following at least once a year:
▪ Water pressure
▪ Water filters
▪ Water pressure relief valve
▪ Relief valve hose
▪ Pressure relief valve of the domestic hot water tank
▪ Switch box
▪ Descaling
▪ Chemical disinfection
▪ Anode
Water pressure
Check whether the water pressure is above 1 bar. If it is lower, add
water.
Water filters
Clean the water filters.
Installer reference guide
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