Daikin EHYKOMB33AA2A [71/108] Commissioning
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Daikin EHYKOMB33AA2A [71/108] Commissioning

Daikin EHYKOMB33AA2A [71/108] Commissioning
10 Commissioning
Installer reference guide
71
CHYHBH05+08AA + EHYKOMB33A
Daikin hybrid for multi heat pump – heat pump module
4P471761-1A – 2017.10
INFORMATION
Start by performing a manual air purge. When almost all
the air is removed, perform an automatic air purge. If
necessary, repeat performing the automatic air purge until
you are sure that all air is removed from the system.
During air purge function, pump speed limitation [9‑0D] is
NOT applicable.
Air purge prerequisites
3 Install air purges on each part of the installation where the pipe
work goes down. (For example on a tank with connections on
top.)
4 Fill the circuit to ±2bar.
5 Purge all radiators and all other air purges installed on the
circuit.
6 Repeat steps 2 and 3 until purging the radiators and the other
points does NOT longer lead to a pressure drop.
7 Make sure that the leaving water temperature home page, room
temperature home page, and domestic hot water home page
are turned OFF.
When an air bubble blocks the pump and there is no flow, a 7H error
can occur. In this case, stop the air purge function and restart the
operation. This will cause the bubble to leave the pump. Make sure
the pressure in the circuit is ±2bar and refill if necessary.
To check if the air purge function is finished, monitor the flow rate. If
it stays constant when the pump is running at high or low speed, the
unit is properly purged. To monitor the flow rate, go to [6.1.8].
The air purge function automatically stops after 42minutes.
To perform a manual air purge
Prerequisite: Make sure that the leaving water temperature home
page, room temperature home page, and domestic hot water home
page are turned OFF.
1 Set the user permission level to Installer. See "To set the user
permission level to Installer"on page46.
2 Set the air purge mode: go to [A.7.3.1] > Installer settings >
Commissioning > Air purge > Type.
3 Select Manual and press .
4 Go to [A.7.3.4] > Installer settings > Commissioning > Air
purge > Start air purge and press to start the air purge
function.
Result: The manual air purge starts and the following screen
appears.
01:18
Tue
Air purge
l/min
Low
SHC
Yes
0.5
Flow rate
Speed
Circuit
Bypass
Stop
Adjust
Scroll
5 Use the and buttons to scroll to Speed.
6 Use the and buttons to set the desired pump speed.
Result: Low
Result: High
7 If applicable, set the desired position of the 3-way valve (space
heating/domestic hot water). Use the and buttons to scroll to
Circuit.
8 Use the and buttons to set the desired position of the 3-way
valve.
Result: SHC or Tank
9 Set the desired position of the bypass valve. Use the and
buttons to scroll to Bypass.
10 Use the and buttons to set the desired position of the
bypass valve.
Result: No (boiler not bypassed)
Result: Yes (boiler bypassed)
To perform an automatic air purge
Prerequisite: Make sure that the leaving water temperature home
page, room temperature home page, and domestic hot water home
page are turned OFF.
1 Set the user permission level to Installer. See "To set the user
permission level to Installer"on page46.
2 Set the air purge mode: go to [A.7.3.1] > Installer settings >
Commissioning > Air purge > Type.
3 Select Automatic and press .
4 Go to [A.7.3.4] > Installer settings > Commissioning > Air
purge > Start air purge and press to start the air purge
function.
Result: Air purging will start and the following screen will be
shown.
01:18
Tue
Air purge
l/min
Low
SHC
Yes
0.5
Flow rate
Speed
Circuit
Bypass
Stop
Adjust
Scroll
To interrupt air purge
1 Press and press to confirm the interruption of the air
purge function.
10.4.4 To perform a test run
Prerequisite: Make sure that the leaving water temperature home
page, room temperature home page, and domestic hot water home
page are turned OFF.
1 Set the user permission level to Installer. See "To set the user
permission level to Installer"on page46.
2 Go to [A.7.1]: > Installer settings > Commissioning > Test
run.
3 Select a test and press . Example: Heating.
4 Select OK and press .
Result: The test run starts. It stops automatically when done
(±30min). To stop it manually, press , select OK and press .
INFORMATION
If 2 user interfaces are present, you can start a test run
from both user interfaces.
▪ The user interface used to start the test run displays a
status screen.
▪ The other user interface displays a "busy" screen. You
cannot use the user interface as long as the "busy"
screen is shown.
If the installation of the unit has been done correctly, the unit will
start up during test operation in the selected operation mode. During
the test mode, the correct operation of the unit can be checked by
monitoring leaving water temperature (heating mode) and tank
temperature (domestic hot water mode).
To monitor the temperature, go to [A.6] and select the information
you want to check.

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