6 Commissioning
Installation manual
22
EHBH/X04+08DA*V7
Daikin Altherma 3 R W
4P618951-1 – 2020.03
6
Commissioning
NOTICE
ALWAYS operate the unit with thermistors and/or pressure
sensors/switches. If NOT, burning of the compressor might
be the result.
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 36 h 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
.
6.1
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)
▪ Between the indoor unit and the domestic hot water
tank (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.
Only for tanks with built-in booster heater:
Booster heater circuit breaker
F2B (field supply) is
turned ON.
There are NO
refrigerant leaks
.
The
refrigerant pipes
(gas and liquid) are thermally
insulated.
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
stop valves
(gas and liquid) on the outdoor unit are
fully open.
The
air purge
valve is open (at least 2 turns).
The
pressure relief valve
purges water when opened.
Clean water must come out.
The
minimum water volume
is guaranteed in all
conditions. See "To check the water volume and flow rate"
in
6].
(if applicable) The
domestic hot water tank
is filled
completely.
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" in
6].
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).
6.2.1
To check the minimum flow rate
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
23]).
—
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.
Minimum required flow rate
12 l/min
6.2.2
To perform an air purge
Conditions:
Make sure all operation is disabled. Go to [C]:
Operation
and turn off
Room
,
Space heating/cooling
and
Tank
operation.