8 Commissioning
Installation manual
37
EL23E
Daikin Altherma 3 R MT F
4P708476-1 – 2023.03
8
Commissioning
INFORMATION
This unit is a heating only model. Therefore, all references
to cooling in this document are NOT applicable.
NOTICE
General
commissioning
checklist.
Next
to
the
commissioning instructions in this chapter, a general
commissioning checklist is also available on the Daikin
Business Portal (authentication required).
The general commissioning checklist is complementary to
the instructions in this chapter and can be used as a
guideline and reporting template during commissioning and
hand-over to the user.
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.
NOTICE
Pump.
To prevent blocking of the pump rotor, commission
the unit as quickly as possible after filling the water circuit.
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
.
Also see
28].
8.1
Checklist before commissioning
1
After the installation of the unit, check the items listed below.
2
Close the unit.
3
Power up the unit.
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.
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 following
field piping
on the cold water inlet of the
DHW tank has been carried out according to this
document and the applicable legislation:
▪ Non-return valve
▪ Pressure reducing valve
▪ Pressure relief valve (and it purges clean water when
opened)
▪ Tundish
▪ Expansion vessel
The
pressure relief valve
(space heating circuit) 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
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
To perform an
air purge
.
To perform a
test run
.
