12 Commissioning
Installer reference guide
79
EJHA EHY32AA
Daikin Altherma Hybrid hydrosplit heat pump
4P531180-1 – 2018.06
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 page 26
.
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 page 26
.
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
.
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 page 39
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
). When "installer-on-site"
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 page 56
.
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
Low
Speed
Stop
Adjust
Circuit
SHC
Scroll
5
Use the and buttons to set the desired pump speed.
Result:
Low
Result:
High
Содержание Altherma EHY2KOMB28AA
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