To Connect Appropriate Measures For Appliances Filled With Co₂; Commissioning; Checklist Before Commissioning; To Perform A Test Run - Daikin FXFN50A2VEB Installation And Operation Manual

14.3 To connect appropriate measures
for appliances filled with CO₂
Appropriate measures are field supplied. For details on how to
connect wiring to the appropriate measures, refer to the
documentation of the used appropriate measures.
1 Determine the minimum number of appropriate measures for
the room in accordance with
refrigerant" [ 4 14].
requirements for CO₂
2 Connect the appropriate measures to the indoor unit terminal
block, symbols T1, T2.
3 If the CO refrigerant leak detector is installed, enable the
2
function for refrigerant leak detection as described in
setting" [ 4 22].
"16.1 Field
a
P1 P2 F1 F2 T1 T2
b
P1 P2
a
P1 P2 F1 F2 T1 T2
b
P1 P2
a
F1 F2 T1 T2
P1 P2
b
P1 P2
14‒1 Example of appropriate measures connection layout for
one room
a Terminal strip on the indoor unit
b Terminal P1/P2 on the user interface
c Control panel (field supply)
d CO refrigerant leak detector (field supply) in combination
2
with a safety alarm (field supply)
e Ventilation (natural or mechanical) (field supply)
f Shut-off valves (field supply)
15

Commissioning

NOTICE
General commissioning
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 the 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.
FXFN50~112A2VEB
CO₂ Conveni-Pack: indoor unit
3P672850-1A – 2021.07
"12.1.2 Additional installation site
d
c
e
f
checklist. Next to the
15.1

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 and operation
instructions, as described in the installer and user
reference guide.
The indoor unit is properly mounted.
The outdoor unit is properly mounted.
Make sure drain piping is properly installed, insulated
and drainage flows smoothly. Check for water leaks.
Possible consequence: Condensate water might drip.
The refrigerant pipes (gas and liquid) are installed
correctly and thermally insulated.
There are NO refrigerant leaks.
There are NO missing phases or reversed phases.
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.
The stop valves (gas and liquid) on the outdoor unit are
fully open.
15.2

To perform a test run

INFORMATION
▪ Perform the test run according to the instructions in the
outdoor unit manual.
▪ The test run is only completed if there is no malfunction
code displayed on the user interface or the outdoor unit
7‑segment display.
▪ See the service manual for the complete list of error
codes and a detailed troubleshooting guideline for each
error.
NOTICE
Do NOT interrupt the test run.
15 Commissioning
Installation and operation manual
21