En-4
2-2. CONNECTING WIRES FOR OUTDOOR UNIT
%
e sure to use special circuits for room air conditioner.
Wiring
wor
N
should be based on applicable technical standards.
Wiring connections should be made following the diagram.
Screws should be tightened so they won’t loosen.
ELECTRICAL SPECIFICATIONS
OUTDOOR UNIT
MXZ-2C20NA2
Power supply
(
9
, P
+
ASE,
+
z)
208/230, 1, 60
Max. Fuse size
(time delay) (A)
20
Min. Circuit
Ampacity (A)
17.2
Fan motor
(F.L.A)
1.77
Com-
pressor
(R.L.A)
10.7
(L.R.A)
15.5
Control
Y
oltage
Indoor unit-Remote controller : (Wireless)
Indoor unit-Outdoor unit : DC 12-24
9
1-3/8 in.
(35 mm)
5/8 in.
(15 mm)
Lead wire
1) Remo
Y
e the ser
Y
ice panel.
2) Remo
Y
e the conduit plate.
3) Attach the conduit connector to conduit plate with loc
N
nut then secure
it to the unit with screws.
%
e sure to attach the conduit connectors in
the correct locations according to their sizes.
4) Connect ground wires to the T
%
bed.
5) Loosen terminal screw, and connect indoor/outdoor unit connecting
wire (
%
) from the indoor unit correctly on the terminal bloc
N
.
%
e careful
not to ma
N
e mis-wiring. Fix the wire to the terminal bloc
N
securely so
that no part of its core is appeared, and no external force is con
Y
eyed
to the connecting section of the terminal bloc
N
.
6) Firmly tighten the terminal screws to pre
Y
ent them from loosening. After
tightening, pull the wires lightly to con
¿
rm that they do not mo
Y
e.
7) Perform 5) and 6) for each indoor unit.
8) Connect power supply cord (A).
9) Close the ser
Y
ice panel securely. Ma
N
e sure that 3-2. PIPE CONNEC-
TION is completed.
CONNECTING WIRES AND CONNECTING GROUND WIRE
Use solid conductor Min. AW
*
14 or stranded conductor Min. AW
*
14.
Use double insulated copper wire with 600
9
insulation.
Use copper conductors only.
*
Follow local electrical code.
POWER SUPPLY CABLE
Use solid or stranded conductor Min. AW
*
8.
Use copper conductors only.
*
Follow local electrical code.
GROUND WIRE
Use solid or stranded conductor Min. AW
*
8.
Use copper conductors only.
*
Follow local electrical code.
WARNING:
Use the indoor/outdoor unit connecting wire that meets the Stand-
ards to connect the indoor and outdoor units and
¿
x the wire to
the terminal block securely so that no external force is conveyed
to the connecting section of the terminal block. An incomplete
connection or
¿
xing of the wire could result in a
¿
re.
Remark:
* Use a ring tongue terminal in order to connect a ground wire to terminal.
Connect wires to the matching numbers of terminals.
Be sure to attach each screw to its correspondent terminal when
securing the cord and/or the wire to the terminal block.
Terminal bloc
N
*
rounding
terminal *
208/230 V AC
1 phase 60 Hz
*
rounding
terminal *
Terminal bloc
N
*
round
OUTDOOR UNIT
Power supply
208/230
9
AC
1 phase 2 wires 60
+
z
Disconnect
switch
*
rounding
terminal *
Terminal bloc
N
Terminal bloc
N
Terminal bloc
N
For future ser
Y
icing, gi
Y
e extra length to the connecting wires.
Conduit connector
Trade size of conduit
(a) Power supply
3/4 in.
(b) Indoor/outdoor
1/2 in.
INDOOR UNIT
Note:
Remo
Y
ing the handle increases the effecti
Y
eness of the wiring operation.
%
e sure to reinstall the handle.
Turn on the main power when the ambient temperature is -
F
(-20
C) or higher.
Under conditions of -
F (-20
C), it needs at least
hr stand by
before the units operate in order to warm the electrical parts.
Ser
Y
ice panel
Screws
Loc
N
nut
Conduit connector
Conduit plate
Screw
