Daikin ERLA03DAV3, Installer'S Reference Manual, Page: 142 / 192

10 | Commissioning
Installer reference guide
142
ERLA EHFZ03S18DJ3V
Daikin Altherma 3 R F
4P596821-1A – 2020.05
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 for both zones
2 Performing an automatic air purge for both zones
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
INFORMATION
When purging the main zone, make sure the setpoint for the main zone is at least
5°C higher than the actual water temperature inside the unit.
Prerequisite: Make sure that the leaving water temperature home page, room
temperature home page, and domestic hot water home page are turned OFF.
1 Set the user permission level to Installer. See "To set the user permission level
to Installer" [
4
97].
2 Set the air purge mode: go to [A.7.3.1] > Installer settings >
Commissioning > Air purge > Type .
3 Select Manual and press .
4 Go to [A.7.3.4] > Installer settings > Commissioning > Air
purge > Start air purge and press to start the air purge function.
Result: The manual air purge starts and the following screen appears.
5 Use the and buttons to set the desired pump speed.
Result: Low
Result: High
To perform an automatic air purge
INFORMATION
When purging the main zone, make sure the setpoint for the main zone is at least
5°C higher than the actual water temperature inside the unit.