Daikin Altherma R Hybrid Installer's Reference Manual page 167

CHYHBH05+08AF + EHYKOMB33A
Daikin Altherma R Hybrid
4P471761-1E – 2020.10
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.
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.
Pressure relief valve of the domestic hot water tank (field supply)
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.
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Maintenance and service
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Installer reference guide
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