Daikin Altherma 3 R W - Checklist During Commissioning; Minimum Flow Rate

12 | Commissioning
Installer reference guide
253
ERLA11~16D + EBBH/X11+16D
Daikin Altherma 3 R W
4P643603-1B – 2022.05
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.
Only for tanks with built-in booster heater:
Booster heater circuit breaker F2B (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 (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 "8.5Preparing water piping"[4106].
(if applicable) The domestic hot water tank is filled completely.
12.4 Checklist during commissioning
The minimum flow rate during backup heater/defrost operation is guaranteed in all
conditions. See "To check the water volume and flow rate" in "8.5 Preparing water
piping"[4106].
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 16l/min
Heating/defrost 22l/min
Domestic hot water production