Daikin EPRA14DAW1 Installer's Reference Manual page 202

10 | Commissioning
Installer reference guide
202
NOTICE
Before starting the air purge, open the safety valve and check if the circuit is
sufficiently filled with water. Only if water escapes the valve after opening it, you can
start the air purge procedure.
Manual or automatic
There are 2 modes for purging air:
▪ Manual: You can set the pump speed to low or high. You can set the circuit (the
position of the 3-way valve) to Space or Tank. Air purge must be performed for
both space heating and tank (domestic hot water) circuits.
▪ Automatic: The unit automatically changes the pump speed and switches the
position of the 3-way valve between the space heating and the domestic hot
water circuit.
Typical workflow
Purging the air from the system should consist of:
1 Performing a manual air purge
2 Performing an automatic air purge
INFORMATION
Start by performing a manual air purge. When almost all the air is removed, perform
an automatic air purge. If necessary, repeat performing the automatic air purge until
you are sure that all air is removed from the system. During air purge function, pump
speed limitation [9‑0D] is NOT applicable.
The air purge function automatically stops after 30 minutes.
INFORMATION
For best results, air purge each loop separately.
To perform a manual air purge
Conditions: Make sure all operation is disabled. Go to [C]: Operation and turn off
Room, Space heating/cooling and Tank operation.
1 Set the user permission level to Installer. See
the user permission
2 Go to [A.3]: Commissioning > Air purge.
3 In the menu, set Type = Manual.
4 Select Start air purge.
5 Select OK to confirm.
Result: The air purge starts. It stops automatically when ready.
4
level" [ 117].
EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G)
"To change —
Daikin Altherma 3 H HT F
4P587502-1A – 2020.01