Connecting The Electrical Wiring - Daikin FWF02D Installation And Operation Manual

6 Electrical installation
WARNING
▪ ONLY use copper wires.
▪ Make sure the field wiring complies with the applicable
legislation.
▪ All field wiring MUST be performed in accordance with
the wiring diagram supplied with the product.
▪ NEVER squeeze bundled cables and make sure they
do NOT come into contact with the piping and sharp
edges. Make sure no external pressure is applied to the
terminal connections.
▪ Make sure to install earth wiring. Do NOT earth the unit
to a utility pipe, surge absorber, or telephone earth.
Incomplete earthing may cause electrical shock.
▪ Make sure to install the required fuses or circuit
breakers.
▪ Make sure to install an earth leakage protector. Failure
to do so may cause electrical shock or fire.
6‒1 Field wiring specifications
2 Pipe
Capacity 02 03
Maximum 0,75 0.77 0,99 1,88 0,67 0,73 0,94 1,85
operating
current (A)
Maximum 0,82 0,84 1,06 1,95 0,74 0,81 1,02 1,92
operating
current (A)
(a)
with valves
Recommend 5
ed
overcurrent
fuse (A)
Phase 1
Frequency 50
(Hz)
Voltage (V) 230
Voltage ±10
tolerance (%)
Wire size ≥1.5
(cross
section mm²)
Earth Must comply with applicable legislation
leakage
circuit
breaker
(a)
Mentioned current is only for Daikin valves.
6.2

Connecting the electrical wiring

DANGER: RISK OF ELECTROCUTION
WARNING
ALWAYS use multicore cable for power supply cables.
WARNING
Use an all-pole disconnection type breaker with at least
3 mm between the contact point gaps that provides full
disconnection under overvoltage category III.
Installation and operation manual
16
4 Pipe
04 05 02 03 04 05
NOTICE
Precautions when laying power wiring:
▪ Do NOT connect wiring of different thicknesses to the
power terminal block (slack in the power wiring may
cause abnormal heat).
▪ When connecting wiring which is the same thickness,
do as shown in the figure above.
▪ For wiring, use the designated power wire and connect
firmly, then secure to prevent outside pressure being
exerted on the terminal board.
▪ Use an appropriate screwdriver for tightening the
terminal screws. A screwdriver with a small head will
damage the head and make proper tightening
impossible.
▪ Over-tightening the terminal screws may break them.
NOTICE
▪ Follow the wiring diagram (delivered with the unit,
located at the inside of the service cover).
▪ For instructions on how to connect the optional
equipment, see the installation manual delivered with
the optional equipment.
▪ Make sure the electrical wiring does NOT obstruct
proper reattachment of the service cover.
It is important to keep the power supply and the transmission wiring
separated from each other. In order to avoid any electrical
interference the distance between both wirings should ALWAYS be
at least 50 mm.
NOTICE
Be sure to keep the power line and transmission line apart
from each other. Transmission wiring and power supply
wiring may cross, but may NOT run parallel.
1
2 Cable clamps (a) and protection rubber (b). First connect the
0-10 V DC fan modulation cable to the X3M terminal.
FWF02~05D
Fan coil units
3P443944-9T – 2023.01