8 Commissioning
Installation manual
44
ELSH/X(B)12P30+50E
Daikin Altherma 3 R MT ECH
₂
O
4P708484-1 – 2023.03
8.2.1
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.
—
3
44]).
—
4
Read out the flow rate
(a)
. If the flow rate is too low:
▪ Do air purge.
▪ Check the function of the valve motor of M1S and
M2S. Replace the valve motor if necessary.
—
(a)
During pump test run, the unit can operate below the minimum
required flow rate.
If operation is…
Then the minimum required
flow rate is…
Cooling
10 l/min
Heating/defrost
20 l/min
8.2.2
To perform an air purge
Conditions:
Make sure all operation is disabled. Go to [C]:
Operation
and turn off
Space heating/cooling
and
Tank
operation.
1
Set the user permission level to Installer. See
change the user permission level"
34].
—
2
Go to [A.3]:
Commissioning
>
Air purge
.
3
Select
OK
to confirm.
Result:
The air purge starts. It stops automatically
when air purge cycle is finished.
To stop the air purge manually:
—
1
Go to
Stop air purge
.
2
Select
OK
to confirm.
Air purging heat emitters or collectors
We recommend to purge air with the unit's air purge function (see
above). However, if you purge air from the heat emitters or
collectors, mind the following:
WARNING
Air purging heat emitters or collectors.
Before you
purge air from heat emitters or collectors, check if
or
is displayed on the home screen of the user interface.
▪ If not, you can purge air immediately.
▪ If yes, make sure that the room where you want to
purge air is sufficiently ventilated.
Reason:
Refrigerant
might leak into the water circuit, and subsequently into
the room when you purge air from the heat emitters or
collectors.
8.2.3
To perform an operation test run
Conditions:
Make sure all operation is disabled. Go to [C]:
Operation
and turn off
Space heating/cooling
and
Tank
operation.
1
Set the user permission level to
Installer
. See
change the user permission level"
34].
—
2
Go to [A.1]:
Commissioning
>
Operation test
run
.
3
Select a test from the list.
Example:
Heating
.
4
Select
OK
to confirm.
Result:
The test run starts. It stops automatically
when ready (±30 min).
To stop the test run manually:
—
1
In the menu, go to
Stop test run
.
2
Select
OK
to confirm.
INFORMATION
If the outdoor temperature is outside the range of
operation, the unit may NOT operate or may NOT deliver
the required capacity.
To monitor leaving water and tank temperatures
During test run, the correct operation of the unit can be checked by
monitoring its leaving water temperature (heating/cooling mode) and
tank temperature (domestic hot water mode).
To monitor the temperatures:
1
In the menu, go to
Sensors
.
2
Select the temperature information.
8.2.4
To perform an actuator test run
Purpose
Perform an actuator test run to confirm the operation of the different
actuators. For example, when you select
Pump
, a test run of the
pump will start.
Conditions:
Make sure all operation is disabled. Go to [C]:
Operation
and turn off
Space heating/cooling
and
Tank
operation.
1
Set the user permission level to Installer. See
change the user permission level"
—
2
Go to [A.2]:
Commissioning
>
Actuator test run
.
3
Select a test from the list.
Example:
Pump
.
4
Select
OK
to confirm.
Result:
The actuator test run starts. It stops
automatically when ready (±30 min).
To stop the test run manually:
—
1
In the menu, go to
Stop test run
.
2
Select
OK
to confirm.
Possible actuator test runs
NOTICE
For the backup heater test run, make sure that at least one
of the two mixing valves of the unit is open during the test.
Otherwise the thermal cut-out of the backup heater may be
triggered.
▪
Backup heater 1
test
▪
Backup heater 2
test
▪
Pump
test
INFORMATION
Make sure that all air is purged before executing the test
run. Also avoid disturbances in the water circuit during the
test run.
▪
Shut off valve
test
▪
DHW signal
test
▪
Bivalent signal
test
▪
Alarm output
test
▪
C/H signal
test
