6 Commissioning
Installation manual
20
EGSQH10S18AA9W
Daikin Altherma ground source heat pump
4P351747-1F – 2016.06
6
Commissioning
NOTICE
NEVER operate the unit without thermistors and/or
pressure sensors/switches. Burning of the compressor
might result.
6.1
Checklist before commissioning
Do NOT operate the system before the following checks are OK:
You read the complete installation instructions, as
described in the
installer reference guide
.
The
indoor unit
is properly mounted.
The following
field wiring
has been carried out according
to this document and the applicable legislation:
▪ Between the local supply panel and the indoor unit
▪ Between the indoor unit and the valves (if applicable)
▪ Between the indoor unit and the room thermostat (if
applicable)
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.
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 indoor unit.
There are NO
refrigerant leaks
.
The correct pipe size is installed and the
pipes
are
properly insulated.
There is NO
water and/or brine leak
inside the indoor
unit.
There are no
odour traces
noticeable of the used brine.
The
space heating air purge
valve is open (at least 2
turns).
The
pressure relief valves
purge to a safe location when
opened.
The
minimum water volume
is guaranteed in all
conditions. See "To check the water volume and flow rate
of the space heating circuit and brine circuit" in
"3.2 Preparing piping" on page 4
.
INFORMATION
The software is equipped with an "installer-on-site" mode
([4‑0E]), that disables automatic operation by the unit. At
first installation, setting [4‑0E] is by default set to "1",
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 [4‑0E] to "0".
12 hours after the first power-on, the unit will automatically
set [4‑0E] to "0", 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 [4‑0E] to "1" manually.
6.2
Checklist during commissioning
The
minimum flow rate
during backup heater/defrost
operation is guaranteed in all conditions. See "To check
the water volume and flow rate of the space heating circuit
and brine circuit" in
"3.2 Preparing piping" on page 4
.
To perform an
air purge
.
To perform an
air purge on the brine circuit
.
To perform a
test run
.
To perform an
actuator test run
.
Underfloor screed dryout function
The underfloor screed dryout function is started (if
necessary).
6.2.1
To check the minimum flow rate
1
Confirm according to the hydraulic configuration which space
heating loops can be closed due to mechanical, electronic, or
other valves.
2
Close all space heating loops that can be closed (see previous
step).
3
Start the pump test run operation (see
"6.2.5 To perform an
actuator test run" on page 21
).
4
Go to [6.1.8]:
> Information > Sensor information > Flow rate
to check the flow rate. During pump test run operation, the unit
can operate below this minimum required flow rate.
Bypass valve foreseen?
Yes
No
Modify the bypass valve setting
to reach the minimum required
flow rate + 2 l/min
In case the actual flow rate is
below the minimum flow rate,
modifications at the hydraulic
configuration are required.
Increase the space heating loops
that can NOT be closed or install
a pressure‑controlled bypass
valve.
Minimum required flow rate during backup heater operation
12 l/min
6.2.2
To perform an 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
Go to [A.7.3]:
> Installer settings > Commissioning > Air
purge.
2
Set the type.
3
Select Start air purge and press
.
4
Select OK and press
.
Result:
The air purge starts. It stops automatically when done. To
stop it manually, press
, select OK and press
.
6.2.3
Air purge function on the brine circuit
When installing and commissioning the unit, it is very important to
remove all air from the brine circuit.
NOTICE
It is required that the brine circuit is filled BEFORE the
brine pump test run is activated.
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