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Piping installation
Installer reference guide
100
EPRA14~W1 + ETSH/X(B)16P30+50EF
Daikin Altherma 3 H HT ECH₂O
4P679467-1 – 2022.02
NOTICE
When freeze protection valves are installed, set the minimum cooling setpoint
(default=7°C) at least 2°C higher than the maximum opening temperature of the
freeze protection valve. If lower, freeze protection valves can open during cooling
operation.
8.2.7 To fill the heat exchanger inside the storage tank
Following heat exchanger have to be filled with water before the storage tank can
be filled:
▪
The domestic hot water heat exchanger
NOTICE
To fill the domestic hot water heat exchanger, use a field supply filling kit. Make sure
you comply with the applicable legislation.
1
Open the shut-off valve for the cold water supply.
2
Open all hot water taps in the system to make sure that the tapped water flow
is as high as possible.
3
Keep the hot water taps open and the cold water supply running until no
more air is vented from the taps.
4
Check for water leaks.
▪
The bivalent heat exchanger (only for some models)
5
Fill the bivalent heat exchanger with water by connecting the bivalent heating
circuit. If the bivalent heating circuit will be installed on a later stage, fill the
bivalent heat exchanger with a filling hose until water comes out of both
connections.
6
Do air purge on the bivalent heating circuit.
7
Check for water leaks.
8.2.8 To fill the storage tank
NOTICE
Before the storage tank can be filled, the heat exchangers inside the storage tank
have to be filled, see previous chapters.
Fill the storage tank with a water pressure <6 bar and a flow speed <15 l/min.
Without installed drainback solar kit (option)
1
Connect a hose with non-return valve (1/2") to the drainback connection.
2
Fill the storage tank until water spills from the spillover connection.
3
Remove the hose.
