FVXS Installation Manual

14■English
9. Wiring
With a multi indoor unit
, install as described in the installation manual supplied with the multi outdoor unit.
• Live the sensor securing plate, remove the front electrical wiring box cover, and connect the branch wiring to the terminal
block.
1) As shown in the illustration, insert the wires including the ground wire into the conduit and secure them with lock nut
onto the conduit mounting plate.
2) Strip wire ends (3/4 inch (20mm)).
3) Match wire colours with terminal numbers on indoor and outdoor unit’s terminal blocks and rmly secure the wires in
the corresponding terminals with the screws.
4) Connect the ground wires to the corresponding terminals.
5) Pull the wires lightly to make sure they are securely connected.
6) Make sure that the wires do not come in contact with the metal conduit for the heat exchanger.
7) In case of connecting to an adapter system, run the remote controller cable and attach the S21. (Refer to “10. When
connecting to an HA system” on page 15.)
Conduit
mounting
plate
Conduit
Lock nut
Back
1
2
3
123 L 2
123
L 1
Firmly fix the wires with
the terminal screws.
Outdoor unit
Indoor
unit
Firmly fix the wires with
the terminal screws.
Use AWG16 if the connection wire
length is less than 33ft (10m), or
AWG14 if it is 33ft (10m) or more.
Terminal block
Electrical
wiring
box
Wire retainer
Use the specified
wire type.
Make sure that the wires
do not come in contact
with the metal conduit
for the heat exchanger.
Shape wires so
that the front
electrical wiring
box cover will fit
securely.
Front electrical
wiring box cover
Sensor securing plate
WARNING
• Do not use tapped wires, stranded wires, extension cords, or starburst connections, as they may cause overheating,
electric shock, or re.
• 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 re.
• Do not connect the power wire to the indoor unit. Doing so may cause electric shock or re.
English
01_EN_3P379970-7B.indd 14 11/12/2015 13:29:59