Checklist During Commissioning; Minimum Flow Rate - Daikin Altherma 3 R F Installer's Reference Manual

12.4 Checklist during commissioning

12.4.1 Minimum flow rate

ERLA11~16DAV3+W1 + EBVH/X11+16S18+23DJ
Daikin Altherma 3 R F
4P643602-1 – 2021.09
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 pressure relief valve 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.
If operation is...
Cooling
Heating/defrost
Domestic hot water production
To check the minimum flow rate
1 Check the hydraulic configuration to find out which space
heating loops can be closed by mechanical, electronic, or other
valves.
"8.5 Preparing water piping" [
Then the minimum required flow rate
12 Commissioning
|
4
102].
"8.5 Preparing water
is...
16 l/min
22 l/min
Installer reference guide
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