Table of Contents
7
Commissioning
NOTICE
ALWAYS operate the unit with thermistors and/or pressure
sensors/switches. If NOT, burning of the compressor might
be the result.
INFORMATION
Protective functions – "Installer-on-site mode". The
software is equipped with protective functions, such as
room antifrost. The unit automatically runs these functions
when necessary. (If the user interface home pages are off,
the unit will not operate automatically.)
During installation or service this behaviour is undesired.
Therefore, the protective functions can be disabled:
▪ At first power-on: The protective functions are
disabled by default. After 12 h they will be automatically
enabled.
▪ Afterwards: An installer can manually disable the
protective functions by setting [A.6.D]: Disable
protections=On. After his work is done, he can
enable the protective functions by setting [A.6.D]:
Disable protections=OFF.
7.1
Checklist before commissioning
After the installation of the unit, first check the items listed below.
Once all checks are fulfilled, the unit must be closed. Power-up the
unit after it is closed.
Depending on the system layout, not all components may be
available.
You read the complete installation instructions, as
described in the installer reference guide.
The outdoor unit is properly mounted.
The gas boiler is properly mounted.
In case of *HY2KOMB28+32AA gas boiler:
The following field wiring has been carried out according
to the available documentation and the applicable
legislation:
▪ Between the outdoor unit and the local supply panel
▪ Between the gas boiler and the local supply panel
▪ Between the outdoor unit and the gas boiler
(communication)
▪ Between the gas boiler and the room thermostat (if
applicable)
▪ Between the gas boiler and the domestic hot water
tank (if applicable)
In case of third-party gas boiler:
The following field wiring has been carried out according
to the available documentation and the applicable
legislation:
▪ Between the outdoor unit and the local supply panel
▪ Between the gas boiler and the local supply panel
▪ Between the outdoor unit and the gas boiler (bivalent
signal)
▪ Between the outdoor unit and the external pump
The system is properly earthed and the earth terminals
are tightened.
EJHA04AAV3
Daikin Altherma H Hybrid – Heat pump module
4P530607-1D – 2020.02
The fuses or locally installed protection devices are
installed according to this document, and have NOT been
bypassed.
The power supply voltage matches the voltage on the
identification label of the unit.
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 outdoor unit.
The correct pipe size is installed and the pipes are
properly insulated.
There are no water leaks inside the outdoor unit.
There is NO water leak inside the gas boiler.
There is NO water leak in the connection between the
gas boiler and the outdoor unit.
The shut-off valves are properly installed and fully open.
The manual air purge valves are closed, and the
automatic air purge valves (if applicable) are open.
The pressure relief valve purges water when opened.
Clean water must come out.
The gas boiler is switched ON.
Setting . is correctly set on the gas boiler. The setting
must be 0.
The minimum water volume is guaranteed in all
conditions. See "To check the water volume" in
piping" [ 4 8].
"4.2 Preparing water
If glycol was added to the system, confirm the correct
glycol concentration, and check if glycol setting [E‑0D]=1.
NOTICE
▪ Make sure glycol setting [E-0D] matches the liquid
inside the water circuit (0=water only, 1=water+glycol).
If the glycol setting is NOT set correctly, the liquid
inside the piping can freeze.
▪ When glycol is added to the system, but the glycol
concentration is lower than prescribed, the liquid inside
the piping can still freeze.
7.2
Checklist during commissioning
The minimum flow rate is guaranteed in all conditions.
See "To check the water volume and flow rate" in
piping" [ 4 8].
"4.2 Preparing water
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).
To perform a gas pressure test.
To perform a test run on the gas boiler.
7 Commissioning
Installation manual
27
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