Daikin FXZQ-M Series Engineering Data page 31

Installation and Operation
 Transmission wiring and remote controller wiring.
Remove the switch box lid and pull the wires inside through
the hole and connect to the terminal block for remote con-
troller (6P). (See C and A). (No polarity) Securely fix the
remote controller cord with a field supplied clamp.
Give enough slack to the wires between the clamp and the
terminal block for the remote controller.
After connection, attach sealing material. (See D). Be sure to
attach it to prevent the infiltration of water from the outside.
A Remote controller and transmission wiring
B Power supply wiring
C How to connect power supply terminal block (6P) for
remote controller and transmission wiring
D Be sure to attach delivered sealing material to prevent
the infiltration of water as well as any insects and other
small creatures from the outside. Otherwise a short-
circuit may occur inside the switch box.
E How to connect terminal block with ground wire (3P)
1 Switch box lid
2 Wiring diagram label (on the backside of the switch box lid)
3 Remote controller wiring
4 Transmission wiring
5 Terminal block for remote controller (6P)
6 Power supply wiring
7 Power supply terminal block
8 Clamp (field supply)
9 Clamp (field supply)
10 Clamp material
11 Sealing material (supplied with the unit)
12 Wiring to outside
13 Outside
14 Inside
15 Be sure to clamp the wire sheath.
After securing the clamp to the clamp material, cut off
any extra material.
16 Conduit mounting plate
17 Screw for conduit mounting plate (M4)
10-2 Precautions
WARNING
 Never connect power supply wiring to the terminal block for
remote controller wiring. This mistake could damage the
entire system.
 Use only specified wire and connect wires to the terminal
tightly. (Tightening torque 0.97 ft-lbf ±10%) Be careful not
to place external stress on terminals.
 Keep wires in neat order so that they do not obstruct other
equipment such as popping open of the service cover.
 Make sure that the lid of the electric component box fits
tightly.
 Incomplete connections could result in overheating and
result in electric shock or fire.
 To avoid a short circuit in the electric component box, be
sure to apply sealing material or putty (field supply) to the
wiring hole. By doing so you prevent infiltration of water and
insects or other small creatures that could cause short cir-
cuit inside the electric component box.
30
CAUTION
 When clamping the wiring, be sure no tension is applied to
the wire connections by using the included clamp.
 Make sure the lid of the electric component box fits snugly
by arranging wires neatly and attaching the service lid
firmly. When attaching the service lid, make sure no wirings
get caught in the edges. To prevent damage to the wiring,
pass them through the foreseen wiring through holes.
 Make sure the remote controller wiring and transmission
wiring between units and other electrical wiring do not pass
through the same locations outside the unit. Separate
these wirings by at least 5 in, otherwise electrical noise
(external static) could cause incorrect operation or dam-
age.
10-3 Wiring connection method
 Use ring-type crimp style terminals for connections to the
power terminal block.
1 2 3
Insulate the crimped area by attaching an insulation sleeve,
etc.
 If ring-type crimp style terminals are not available, connect
the terminals to the terminal block as follows:
 Wiring of different thicknesses can not be connected to
the power terminal block. A loose connection could
cause abnormal heating.
 When connecting wires of the same diameter, make the
connection to both sides of the same gauge.
 Use an appropriate screwdriver for tightening the terminal
screw.
Using a screwdriver that is too small could damage the
screw head and prevent proper tightening.
 Over tightening the terminal screw could damage the
screw.
Refer to the table below for the terminal screw tightening
torque.
Terminal
screw
size Location
Remote controller, transmission wiring
M3.5
and forced off terminal block (6P)
Power supply and ground terminal block
M4
(3P)
 Do not connect wires of different gauge to the same ground
terminal. Looseness in the connection may decrease the
protection.
EDUS39-800-F9
1 Ring type crimp style ter-
minal
2 Insulation sleeve
3 Electric wire
Tightening
torque
(ft-lbf)
0.58~0.72
0.87~1.06
FXZQ-M