Daikin CTXU25G2V1B Service Manual page 71

Installation Manual
Wiring
WARNING
1) Do not use tapped wires, stranded wires (CAUTION 1)), extension cords, or starburst connections, as they may cause
overheating, electrical shock, or fire.
2) Do not use locally purchased electrical parts inside the product. (Do not branch the power for the drain pump, etc., from the
terminal block.) Doing so may cause electric shock or fire.
3) Be sure to install an earth leakage breaker. (One that can handle higher harmonics.)
(This unit uses an inverter, which means that it must be used an earth leakage breaker capable handling harmonics in order
to prevent malfunctioning of the earth leakage breaker itself.)
4) Use an all-pole disconnection type breaker with at least 3mm between the contact point gaps.
• Do not turn ON the safety breaker until all work is completed.
1) Strip the insulation from the wire (20mm).
2) Connect the connection wires between the indoor and
outdoor units so that the terminal numbers match.
Tighten the terminal screws securely. We recommend a
flathead screwdriver be used to tighten the screws. The
screws are packed with the terminal board.
CAUTION
1) In case using stranded wires is unavoidable for some reason,
make sure to install the round crimp-style terminals on the tip.
Place the round crimp-style terminals on the wires up to the
covered part and secure in place.
2) When connecting the connection wires to
the terminal board using a single core wire,
be sure to perform curling.
Problems with the work may cause heat
and fires.
3) Pull the wire and make sure that it does not disconnect. Then fix the wire in place with a wire retainer.
Wire retainer
Use the
specified wire
type and
connect it
securely.
Make sure the electrical
wiring does not come into
contact with the gas piping.
Refer to the figure.
Make sure connecting the
piping and connecting
wiring fit into
(Incorrect handling will
make it hard to attach the
stop valve cover, causing
deformation.)
13
68
4 P
4
Be sure to clamp the wire for
power source on this location.
.
ROOM-A
Liquid piping
Gas piping
ROOM-B
Liquid piping
Gas piping
Room Room
A B
Indoor unit
Room A
Round crimp-style
terminal
OK NG
1 2 3
ROOM-A
Firmly secure wire retainer
so wire terminations will not
receive external stress.
Shape wires so that the stop
Also use the 2 screws ( E ) E
valve cover fit securely.
located at the bottom of
the packing case to tighten
the four locations.
Make sure the wiring, piping and humidifying hose from the indoor unit to the
outdoor unit match.
OK
Humidifying hose
ROOM-A
Piping
Wiring A
Outdoor
unit
Wiring
B
Piping
ROOM-B
Humidifying hose
Outdoor unit
Use 2.0mm diameter wires.
Be sure to use the dedicated circuits.
Earth leakage 50Hz
Safety breaker
circuit breaker 220-240V
H05RN
If the length of a connection wire is
10m or more, use 2.0mm wire.
To room B
Stranded wire
OK NG
1 2 3
ROOM-B
Power supply
L N
NG
Humidifying hose
ROOM-A
Piping
Wiring A
Outdoor
unit
Wiring
B
Piping
ROOM-B
Humidifying hose
Installation / Operation Manual
SiBE12-908