![background image](http://html.mh-extra.com/html/daikin/altherma-erhq011-014-016ba/altherma-erhq011-014-016ba_installers-reference-manual_501283078.webp)
10 Hand-over to the user
Installer reference guide
78
ERHQ+ERLQ011~016 + 16CBV
Daikin Altherma – Low temperature split
4P449970-1 – 2016.06
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 must be done by an authorised installer or
service agent.
We recommend to do maintenance at least once a year.
However, applicable legislation might require shorter
maintenance intervals.
NOTICE
In Europe, the
greenhouse gas emissions
of the total
refrigerant charge in the system (expressed as tonnes
CO
2
-equivalent) is used to determine the maintenance
intervals. Follow the applicable legislation.
Formula to calculate the greenhouse gas emissions:
GWP value of the refrigerant × Total refrigerant charge [in
kg] / 1000
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
See
"7.2.4 To open the switch box cover of the indoor unit" on
page 30
.
11.2.2
Opening the backup heater
See
"7.2.5 To open the backup heater" on page 30
and
"7.2.6 To
open the switch box cover of the backup heater" on page 30
.
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 filter
▪ Water pressure relief valve
▪ Pressure relief valve of the domestic hot water tank
▪ Switch box
▪ Anti-legionella heater of the domestic hot water tank
Water pressure
Check whether the water pressure is above 1 bar. If it is lower, add
water.
Water filter
Clean the water filter.
NOTICE
Handle the water filter with care. Do NOT use excessive
force when you reinsert the water filter so as NOT to
damage the water filter mesh.
1
3
2
5
4
Water pressure relief valve
Open the valve and check if it operates correctly.
The water may be
very hot!
Checkpoints are: