Daikin Altherma 3 M - Checklist During Commissioning; Minimum Flow Rate

12 | Commissioning
Installer reference guide
222
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
4P620241-1 – 2020.06
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 "8.1Preparing water piping"[473].
(if applicable) The domestic hot water tank is filled completely.
12.4 Checklist during commissioning
The minimum flow rate is guaranteed in all conditions. See "To check the water volume
and flow rate" in "8.1Preparing water piping"[473].
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).
12.4.1 Minimum flow rate
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… Then the minimum required flow rate
is…
Cooling 20l/min
Heating/defrost when outdoor
temperature is above –5°C
Heating/defrost when outdoor
temperature is below –5°C
22l/min
Domestic hot water production 28l/min
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. —