8 Commissioning
Installation manual
25
EA23DA6V(7)+9W
Daikin Altherma 3 H F
4P556073-1A – 2021.09
8
Commissioning
NOTICE
ALWAYS operate the unit with thermistors and/or pressure
sensors/switches. If NOT, burning of the compressor might
be the result.
NOTICE
Make sure both air purge valves (one on the magnetic filter
and one on the backup heater) are open.
All automatic air purge valves MUST remain open after
commissioning.
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.
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 hours they will be
automatically enabled.
▪
Afterwards:
An installer can manually disable the
protective functions by setting [9.G]:
Disable
protections
=
Yes
. After his work is done, he can
enable the protective functions by setting [9.G]:
Disable protections
=
No
.
8.1
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.
You read the complete installation instructions, as
described in the
installer reference guide
.
The
indoor unit
is properly mounted.
The
outdoor 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 outdoor unit
▪ Between indoor unit and outdoor unit
▪ 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 and outdoor units.
Backup heater circuit breaker
F1B (field supply) is
turned ON.
The correct pipe size is installed and the
pipes
are
properly insulated.
There is NO
water leak
inside the indoor unit.
The
shut-off valves
are properly installed and fully open.
The
automatic air purge
valves are open.
The
pressure relief valve
purges water when opened.
Clean water MUST come out.
The
domestic hot water tank
is filled completely.
8.2
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" in
8].
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).
8.2.1
To check the minimum flow rate
Mandatory procedure for the additional zone
1
Check the hydraulic configuration to find out which
space heating loops can be closed by mechanical,
electronic, or other valves.
—
2
Close all space heating loops that can be closed.
—
3
Start the pump test run (see
—
4
Read out the flow rate
(a)
and modify the bypass valve
setting to reach the minimum required flow rate + 2 l/
min.
—
(a)
During pump test run, the unit can operate below the minimum
required flow rate.
Recommended procedure for the main zone
INFORMATION
The pump of the additional zone ensures that the minimum
flow rate for correct operation of the unit is guaranteed.
1
Check with the hydraulic configuration which space
heating loops can be closed by mechanical,
electronic, or other valves.
—
2
Close all space heating loops that can be closed
(see previous step).
—
3
Create a thermo request on the main zone only.
—
4
Wait 1 minute until the unit is stabilized.
—
5
If the additional pump is still assisting (the green
LED on the right hand sided pump is ON) increase
the flow until the additional pump is not assisting
anymore (LED is OFF).
—
6
Go to [8.4.A]:
Information
>
Sensors
>
Flow
rate
.
