To Connect Appropriate Measures For Appliances Filled With Co₂; Commissioning; Checklist Before Commissioning - Daikin FXSN71A2VEB Installation And Operation Manual

14 Commissioning

a
Control box
IN/D OUT/D
F F F F
1 2 1 2
L N
L N L N
P P F F T T P P F F T
b 1 2 1 2 1 2 1 2 1 2
P P
c
1 2
a Outdoor unit
b Indoor unit
c User interface (controls 3 indoor units)
d Most downstream indoor unit
e For use with 2 user interfaces
▪ Setting master unit (Cooling/Heating masterhood). In case of
group control, connect the user interface wiring directly to the
master unit. Do not connect user interfaces directly to slave units.
Slave units are restricted in their operation by the master unit (e.g.
1 outdoor unit does not allow for 1 indoor unit to run in cooling
operation while another runs in heating operation). For setting
using the user interface, refer to the manual or reference guide of
the user interface.
INFORMATION
In case of group control, it is not necessary to assign a
group address to the indoor unit. The group address is
automatically set when the power is turned on.
13.3 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 13].
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 21].
"15.1 Field
Installation and operation manual
20
d
L N L N
T P P F F T T P P F F T T
1 2 1 2 1 2 1 2 1 2 1 2 1
P P
e
1 2
"11.1.2 Additional installation site
a
P1 P2 F1 F2 T1 T2
b
P1 P2
2
a
P1 P2 F1 F2 T1 T2
P P
1 2
b
P1 P2
a
P1 P2 F1 F2 T1 T2
b
P1 P2
13‒1 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
2
with a safety alarm (field supply)
e Ventilation (natural or mechanical) (field supply)
f Shut-off valves (field supply)
14 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.
14.1

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 ducting is properly installed and insulated.
c
refrigerant leak detector (field supply) in combination
checklist. Next
FXSN50~112A2VEB
CO₂ Conveni-Pack: indoor unit
4P602815-1F – 2021.07
d
e
f
to the