12
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Commissioning
Installer reference guide
240
ERRA08~12E + EL23E
Daikin Altherma 3 R MT F
4P708478-1 – 2023.05
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
10 l/min
Heating/defrost
20 l/min
To check the minimum flow rate: additional zone (mandatory)
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.
—
3
—
4
Read out the flow rate
(a)
and modify the bypass valve setting to
reach the minimum required flow rate + 2 l/min.
—
(a)
During pump test run, the unit can operate below the minimum required flow rate.
To check the minimum flow rate: main zone (recommended)
INFORMATION
The pump of the additional zone ensures that the minimum flow rate for correct
operation of the unit is guaranteed.
1
Check with the hydraulic configuration which space heating
loops can be closed by mechanical, electronic, or other valves.
—
2
Close all space heating loops that can be closed (see previous
step).
—
3
Create a thermo request on the main zone only.
—
4
Wait 1 minute until the unit is stabilized.
—
5
If the additional pump is still assisting (the green LED on the
right hand sided pump is ON) increase the flow until the
additional pump is not assisting anymore (LED is OFF).
—
6
Go to [8.4.A]:
Information
>
Sensors
>
Flow rate
.
7
Read out the flow rate and modify the bypass valve setting to
reach the minimum required flow rate + 2 l/min.
—