7 Hand-over to the user
Installation manual
23
08SU EHVH08~16SU26CB6W
Daikin Altherma – Low temperature split
4P449980-1B – 2016.11
7
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.
8
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
8.1
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.
8.1.1
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.
8.2
Checklist for yearly maintenance
of the indoor unit
Check the following at least once a year:
▪ Water pressure
▪ Water filter
▪ Water pressure relief valve
▪ Discharge piping
▪ Pressure relief valve of the domestic hot water tank
▪ Booster heater of the domestic hot water tank
▪ Switch box
▪ Descaling
▪ Chemical disinfection
▪ Anode
▪ Pressure reducing valve of the domestic hot water tank kit
▪ Pressure relief valve of the domestic hot water tank kit
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:
▪ The water flow coming from the relief valve is high enough, no
blockage of the valve or in between piping is suspected.
▪ Dirty water coming out of the relief valve:
▪ open the valve until the discharged water does NOT contain dirt
anymore
▪ flush the system and install an additional water filter (a
magnetic cyclone filter is preferable).
To make sure this water originates from the tank, check after a tank
heat up cycle.
It is recommended to do this maintenance more frequently.
Discharge piping
Check whether the discharge piping is positioned appropriately to
drain the water. See
"4.4.2 To connect the water piping" on page 7
and
"4.4.3 To connect the pressure relief valve to the drain" on
page 9
.
