Wiring Example And How To Set The Remote Controller - Daikin FCQ18PVJU Installation Manual

9-3 SPECIFICATIONS FOR FIELD SUPPLIED
FUSES AND WIRES
Power supply wiring
Model
Field fuses
Wire size
FCQ18PVJU
must comply
FCQ24PVJU 15A
with local
FCQ30PVJU
codes.
Allowable length of transmission wire and remote controller
wire are as follows.
(1) Outdoor unit – Indoor unit:
Max. 3280 ft.
(2) Indoor unit – Remote controller:
Max. 1640 ft.
10. WIRING EXAMPLE AND HOW TO SET
THE REMOTE CONTROLLER
10-1 HOW TO CONNECT WIRES
〈Methods of wiring power supply, units and connecting
remote controller wires〉
• Power supply wire
Remove the control box lid (2) and connect wires to the
power supply terminal block (3P) inside. In doing this, pull
the wires inside through rubber bush A and clamp the wires
along with other wires using clamp A, untightening the clip
of clamp A by pressing. After the connection, tighten clamp
A as before.
• Transmission wire and remote controller wire
Remove the control box lid (1) and pull the wires inside
through rubber bush B and connect to the transmission
terminal block (6P).
• After connection, attach sealing pad
(Be sure to attach it to prevent water from infi ltrating the unit
from the outside.)
Otherwise a short-circuit may occur inside
the control box.
Rubber
Wrap pad tightly enough
bush
to prevent gapping.
Sealing pad (Small)
(Wrap around the wire)
Field wire
(Outside)
(Inside)
NOTES
sealing pad (Small) and wrap each wire.
Rubber
bush A
Rubber
bush B
Transmission
terminal block (6P)
Control box lid (1)
English
Transmission wiring
Size Wire Size
Sheathed wire AWG
(2 wires) 18-16
Rubber bush A
Lock nut
Conduit Conduit
mounting
plate
Clamp A
Grounding
terminal
Power supply terminal
block (3P)
Wiring diagram Control box lid (2)
Clamp A
P1 P2 F1 F2
Remote
controller wire
CAUTION
• Even if the control box lid (1)(2) is removed, pull the remote
controller wire, transmission wire and the power supply wire
inside the unit so that the wires do not come into contact
with the opening section of the metal casing.
• Pass conduits through the wall and secure along with the
refrigerant pipe in order to prevent external pressure being
applied to transmission wire and power supply wire.
• Arrange the wires and fi x a lid fi rmly so that the lid does not
fl oat during wiring work.
• Do not clamp remote controller wire and transmission wire
together with power supply wire. Doing so may cause
malfunction.
• Remote controller wire, transmission wire and power supply
wire should be located at least 5 in. from other electric
wires. Not following this guideline may result in malfunction
due to electrical noise.
WARNING
• Never connect power supply wiring to the terminal block for
remote controller wiring as this could damage the entire
system.
• Use only specifi ed wire and connect wires to the terminal
tightly. Be careful wires do not place external stress on
terminals. Keep wires in neat order so as to not obstruct
other equipment. Make sure that the electric box lid fi ts
tightly. Incomplete connections could result in overheating
and, in worse case, result in electric shock or fi re.
NOTE
1. Use round crimp-style terminals for connecting wires to the
power supply terminal block.
If unavailable, observe the following points when wiring.
• Do not connect wires of different gauge to the same
power supply terminal.
(Looseness in the connection may cause overheating.)
Attach insulation sleeve
Round crimp-style terminal
Clip
L1 L2
Power supply
Power supply
terminal block (3P)
Transmission
T1 T2
terminal block (6P)
Transmission wire
Electric wire
10