Checklist During Commissioning; Minimum Flow Rate - Daikin ERLA11D V3 Series Installer's Reference Manual

12 | Commissioning

12.4 Checklist during commissioning

12.4.1 Minimum flow rate

Installer reference guide
242
There are NO loose connections or damaged electrical components in the switch box.
There are NO damaged components or squeezed pipes on the inside of the indoor and
outdoor units.
Backup heater circuit breaker F1B (field supply) is turned ON.
There are NO refrigerant leaks.
The refrigerant pipes (gas and liquid) are thermally insulated.
The correct pipe size is installed and the pipes are properly insulated.
There is NO water leak inside the indoor unit.
The shut-off valves are properly installed and fully open.
The stop valves (gas and liquid) on the outdoor unit are fully open.
The air purge valve is open (at least 2 turns).
The following field piping on the cold water inlet of the DHW tank has been carried out
according to this document and the applicable legislation:
▪ Non-return valve
▪ Pressure reducing valve
▪ Pressure relief valve (and it purges clean water when opened)
▪ Tundish
▪ Expansion vessel
The pressure relief valve (space heating circuit) purges water when opened. Clean water
MUST come out.
The minimum water volume is guaranteed in all conditions. See "To check the water
volume and flow rate" in
The domestic hot water tank is filled completely.
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" [ 102].
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).
Purpose
For a correct operating unit, it is important to check if the minimum flow rate is
reached. If needed, modify the bypass valve setting.
"8.5 Preparing water piping" [
4
102].
"8.5 Preparing water
ERLA11~16D + EBVH/X11+16S18+23D
Daikin Altherma 3 R F
4P643602-1B – 2022.05