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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.
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
"8.3 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.
12.4
Checklist during commissioning
The minimum flow rate is guaranteed in all conditions.
See "To check the water volume and flow rate" in
"8.3 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 a gas pressure test.
To perform a test run on the gas boiler.
EJHA04AAV3 + NHY2KOMB28+32AA
Daikin Altherma H Hybrid
4P556861-1A – 2019.05
page 26.
page 26.
12.4.1
Air purge function
When commissioning and installing the unit, it is very important to
remove all air in the water circuit. When the air purge function is
running, the pump operates without actual operation of the unit and
the removal of air in the water circuit will start.
NOTICE
Before starting the air purge, open the safety valve and
check if the circuit is sufficiently filled with water. Only if
water escapes the valve after opening it, you can start the
air purge procedure.
There are 2 modes for purging air:
▪ Manual: the unit operates with a fixed pump speed and in a fixed
or custom position of the 3-way valve. The custom position of the
3-way valve is a more than helpful feature to remove all air from
the water circuit in the space heating or the domestic hot water
heating mode. Air purge must be performed for both the space
heating and the domestic hot water circuit. The operation speed of
the pump (slow or quick) can also be set.
▪ Automatic: the unit automatically changes the pump speed and
switches the position of the 3-way valve between the space
heating and the domestic hot water heating mode.
Typical workflow
The air purge procedure requires manual action. For a typical
workflow, see
"9.6.6 To fill the space heating circuit" on
Make sure that the leaving water temperature home page, room
temperature home page, and domestic hot water home page are
turned OFF.
The air purge function automatically stops after 42 minutes.
To perform a manual air purge
INFORMATION
Frost protection functions. After first power-on, the unit
runs in "installer-on-site" mode (see
commissioning" on page
mode ends, the unit's frost protection functions are
enabled, and you cannot start the air purge function if
Ta<4°C.
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
permission level to Installer" on
2 Set the air purge mode: go to [A.7.3.1]
settings > Commissioning > Air purge > Type.
3 Select Manual and press
> Installer settings > Commissioning >
4 Go to [A.7.3.4]
Air purge > Start air purge and press
purge function.
Result: The manual air purge starts and the following screen
appears.
Tue
Air purge
Speed
Low
Circuit
SHC
Stop
Adjust
Scroll
5 Use the
and
buttons to set the desired pump speed.
Result: Low
Result: High
12 Commissioning
page 39.
"12.3 Checklist before
78). When "installer-on-site"
"To set the user
page 56.
> Installer
.
to start the air
01:18
Installer reference guide
79
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