Checklist During Commissioning; To Check The Minimum Flow Rate; Air Purge Function - Daikin Altherma 3 R F Installer's Reference Manual

10 | Commissioning

10.4 Checklist during commissioning

10.4.1 To check the minimum flow rate

10.4.2 Air purge function

Installer reference guide
156
The minimum flow rate during backup heater/defrost operation is guaranteed in all
conditions. See "To check the water volume and flow rate" in
4
piping" [ 65].
To perform an air purge.
To perform a test run.
To perform an actuator test run.
Underfloor screed dryout function
The underfloor screed dryout function is started (if necessary).
1 Confirm according to the hydraulic configuration which space heating loops
can be closed due to mechanical, electronic, or other valves.
2 Close all space heating loops that can be closed (see previous step).
3 Start the pump test run operation (see
4
run" [ 158]).
4 Go to [6.1.8]: > Information > Sensor information > Flow rate to
check the flow rate. During pump test run operation, the unit can operate
below this minimum required flow rate.
Yes
Modify the bypass valve setting to reach
the minimum required flow rate + 2 l/
min
Minimum required flow rate
12 l/min
Purpose
When commissioning and installing the unit, it is very important to remove all air in
the water circuit. When the air purge function is running, the pump operates
without actual operation of the unit and the removal of air in the water circuit will
start.
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:
"10.4.4 To perform an actuator test
Bypass valve foreseen?
No
In case the actual flow rate is below the
minimum flow rate, modifications at the
hydraulic configuration are required.
Increase the space heating loops that
can NOT be closed or install a
pressure‑controlled bypass valve.
"7.2 Preparing water
ERLA03DAV3 + EHFH03S18DJ3V
Daikin Altherma 3 R F
4P596806-1 – 2019.10