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Drain hose
Check the condition and routing of the drain hose. Water must drain
appropriately from the hose. See
the
drain" [ 4 10].
Fluid pressure
Check whether the fluid pressure is above 1 bar. If it is lower, add
fluid.
Pressure relief valve
Open the valve.
CAUTION
Discharge may be very hot.
▪ Check if nothing blocks the fluid in the valve or in between piping.
The fluid flow coming from the relief valve must be high enough.
▪ Check if the fluid coming out from the relief valve is clean. If it
contains debris or dirt:
▪ Open the valve until the discharged water does NOT contain
debris or dirt anymore.
▪ Flush the system and install an additional water filter (preferably
a magnetic cyclone filter).
INFORMATION
It is recommended to perform this maintenance more than
once a year.
Pressure relief valve of the domestic hot water tank
Open the valve.
CAUTION
Water coming out of the valve may be very hot.
▪ Check if nothing blocks the water in the valve or in between
piping. The water flow coming from the relief valve must be high
enough.
▪ Check if the water coming out of the relief valve is clean. If it
contains debris or dirt:
▪ Open the valve until the discharged water does not contain
debris or dirt anymore.
▪ Flush and clean the complete tank, including the piping
between the relief valve and cold water inlet.
To make sure this water originates from the tank, check after a tank
heat up cycle.
INFORMATION
It is recommended to perform this maintenance more than
once a year.
Switch box
Carry out a thorough visual inspection of the switch box and look for
obvious defects such as loose connections or defective wiring.
WARNING
If the internal wiring is damaged, it has to be replaced by
the manufacturer, its service agent or similarly qualified
persons.
Water filter
Close the valve. Clean and rinse the water filter.
NOTICE
Handle the filter with care. To prevent damage to the mesh
of the filter, do NOT use excessive force when you reinsert
it.
EGSAH/X06+10UD
Daikin Altherma 3 GEO
4P598591-1C – 2023.02
"4.3.2 To connect the drain hose to
10 Maintenance and service
2
1
3
Brine filter
Clean and rinse the brine filter.
NOTICE
Handle the filter with care. To prevent damage to the mesh
of the filter, do NOT use excessive force when you reinsert
it.
2
1
3
10.3
To drain the domestic hot water
tank
DANGER: RISK OF BURNING/SCALDING
The water in the tank can be very hot.
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Close the cold water supply.
Prerequisite: Open all the hot water tapping points to allow air to
enter the system.
Prerequisite: Remove the top panel. See
unit" [ 4 6].
1 Remove the tube from the temperature and pressure relief
valve that is located on top of the tank.
2 Remove the temperature and pressure relief valve from the
tank.
3 Use a drain hose and a pump to drain the tank via the access
point.
"4.2.1 To open the indoor
Installation manual
41
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