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

12 | Commissioning

12.4 Checklist during commissioning

12.4.1 Minimum flow rate

Installer reference guide
222
Only for tanks with built-in booster heater:
Booster heater circuit breaker F2B (field supply) is turned ON.
The correct pipe size is installed and the pipes are properly insulated.
There are no water leaks inside the outdoor unit.
The shut-off valves are properly installed and fully open.
For models with integrated backup heater: The automatic air purge valve (on the backup
heater) is open.
For other models: The manual air purge valve is closed.
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
(if applicable) The domestic hot water tank is filled completely.
The minimum flow rate is guaranteed in all conditions. See "To check the water volume
and flow rate" in "8.1 Preparing water
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 when outdoor
temperature is above –5°C
Heating/defrost when outdoor
temperature is below –5°C
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.
2 Close all space heating loops that can be closed.
"8.1 Preparing water piping" [
4
piping" [ 73].
Then the minimum required flow rate
4
73].
is...
20 l/min
22 l/min
28 l/min
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
4P620241-1 – 2020.06
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