Commissioning; Checklist Before Commissioning; Checklist During Commissioning; To Perform An Air Purge - Daikin Altherma EJHA04AAV3 Installation Manual

7

Commissioning

NOTICE
NEVER operate the unit without thermistors and/or
pressure sensors/switches. Burning of the compressor
might result.
INFORMATION
The software is equipped with an "installer-on-site" mode
([A.6.D]: Disable protections) that disables automatic
operation by the unit. At first installation, the default setting
is Disable protections=On, meaning automatic operation is
disabled. All protective functions are then disabled. If the
user interface home pages are off, the unit will NOT
operate automatically. To enable automatic operation and
the protective functions, set Disable protections=OFF.
12 hours after the first power-on, the unit will automatically
set Disable protections=OFF, ending "installer-on-site"
mode and enabling the protective functions. If – after first
installation – the installer returns to the site, the installer
has to set Disable protections=On manually.
7.1

Checklist before commissioning

After the installation of the unit, first check the following items. Once
all below checks are fulfilled, the unit MUST be closed, ONLY then
can the unit be powered up.
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.
The fuses or locally installed protection devices are
installed according to this document, and have NOT been
bypassed.
EJHA04AAV3
Daikin Altherma hybrid monobloc – Heat pump module
4P530607-1B – 2018.10
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.
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
"4.2 Preparing water piping" on
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
"4.2 Preparing water piping" on

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 an air purge on the gas supply.
To perform a test run on the gas boiler.
7.2.1 To perform an air purge
NOTICE
The air purge procedure requires manual action. See
"5.3.4 To fill the space heating circuit" on
7 Commissioning
page 7.
page 7.
page 15.
Installation manual
27