Daikin FDA125A5VEB, Installation And Operation Manual

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15 Commissioning
Installation and operation manual
18
FDA125A5VEB
Split system air conditioners
4P494410-1D – 2022.10
3 Interconnection cable (indoor↔outdoor): Route the cable
through the frame, connect the cable to the terminal block
(make sure the numbers match with the numbers on the
outdoor unit, and connect the earth wire), and fix the cable with
a cable tie.
4 Divide the small sealing (accessory) and wrap it around the
cables to prevent water from entering the unit. Seal all gaps to
prevent small animals from entering the system.
5 Reattach the service cover.
▪ When using 1 user interface with 1 indoor unit.
1 2 3
a a a
b
c
1 2 3
P
1
P
2
P
1
P
2
d
1 2
L N
3
b
c
b
c
1 2 3
P
1
P
2
P
1
P
2
d
L N L N
L N
▪ When using 2 user interfaces
(1)
1 2 3
b
c
1 2 3
P
1
P
2
P
1
P
2
P
1
P
2
d d
a
L N
b
c
a
L N
▪ When using group control
(1)
b
c
P
1
P
2
d
P
1
P
2
P
1
P
2
P
1
P
2
a
1 2 3 L N
1 2 3
1 2 3 L N
1 2 3
1 2 3 L N
1 2 3
b
c
a
b
c
a
b
c
a
b
c
a
b
c
a
L N
L N
L N
a Power supply
b Main switch
c Fuse
d User interface
▪ Master unit: Be sure to connect the wiring when combining with a
simultaneously operating multi-type in group control.
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.
▪ EN/IEC 61000‑3‑12 provided that the short-circuit power S
sc
is
greater than or equal to the minimum S
sc
value at the interface
point between the user's supply and the public system.
▪ EN/IEC 61000‑3‑12 = European/International Technical
Standard setting the limits for harmonic currents produced by
equipment connected to public low-voltage systems with input
current >16 A and ≤75 A per phase.
▪ It is the responsibility of the installer or user of the equipment to
ensure, by consultation with the distribution network operator if
necessary, that the equipment is connected ONLY to a supply
with a short-circuit power S
sc
greater than or equal to the
minimum S
sc
value.
To comply with EN/IEC 61000‑3‑12, following rules must be
considered:
▪ In case of combination of units 2x FDA125A + RZQ250, use
separate power supplies.
N L 2 1 3
▪ Otherwise, refer to the table with S
sc
values for FDA125A on the
extranet.
▪ If the S
sc
value is NOT mentioned in the table for the used
combination, use the common power supply wire delivered with
the unit.
▪ If the S
sc
value is mentioned in the table, both the common
power supply wire or a separate power supply can be used, but
a separate power supply is preferred.
L N 2 1 3
a
a Wire for common power supply (accessory)
15 Commissioning
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.
(1)
Dashed line represents separate power supply.