Mitsubishi Electric MXZ-2C20NAHZ2 Manual De Instalación página 5

2-2. CONNECTING WIRES FOR OUTDOOR UNIT
e sure to use special circuits for room air conditioner.
Wiring wor should be based on applicable technical standards.
Wiring connections should be made following the diagram.
Screws should be tightened so they won't loosen.
1) Remo e the ser ice panel.
2) Remo e the conduit plate.
3) Attach the conduit connector to conduit plate with loc 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 . e careful
not to ma e mis-wiring. Fix the wire to the terminal bloc securely so
that no part of its core is appeared, and no external force is con eyed
to the connecting section of the terminal bloc .
6) Firmly tighten the terminal screws to pre ent them from loosening. After
tightening, pull the wires lightly to con rm that they do not mo e.
7) Perform 5) and 6) for each indoor unit.
8) Connect power supply cord (A).
9) Close the ser ice panel securely. Ma e sure that 3-2. PIPE CONNEC-
TION is completed.
Screws
Ser ice panel
Connecting order
Connect the terminal
bloc in following order.
MXZ-2C A P
MXZ-3C A C P
MXZ-5C A C D E P
Remark:
* A disconnect switch should be required. Chec the local code.
** Use a ring tongue terminal in order to connect a ground wire to terminal.
A - B (MXZ-2C)
INDOOR UNIT A - C (MXZ-3C)
A - E (MXZ-5C)
Terminal bloc
rounding
terminal **
208/230 V AC
1 phase 60 Hz
Disconnect
switch *
rounding
terminal **
Terminal bloc
A - B (MXZ-2C)
A - C (MXZ-3C)
A - E (MXZ-5C)
Conduit plate T
andle
Loc nut
Conduit plate U
<MXZ-3C/5C only>
<MXZ-2C/3C>
P
Power supply
A B C
Terminal bloc for
indoor/outdoor unit
<MXZ-5C>
P
Power supply
D E
Terminal bloc for
A B C
indoor/outdoor unit
5/8 in.
1-3/8 in.
(15 mm)
(35 mm)
Terminal bloc
Lead wire
Power supply
208/230 AC
1 phase 2 wires 60 z
terminal **
GR
Terminal bloc Terminal bloc
OUTDOOR UNIT
ELECTRICAL SPECIFICATIONS
OUTDOOR UNIT MXZ-2C20NA Z2 MXZ-3C24NA Z2 MXZ-3C30NA Z2
Power supply
( , P ASE, z)
Max. Fuse size
(time delay) (A)
Min. Circuit
28.9
Ampacity (A)
Fan motor
(F.L.A)
(R.L.A)
Com-
pressor
(L.R.A)
Indoor unit-Remote controller : (Wireless)
Control oltage
Indoor unit-Outdoor unit : DC 12-24
Conduit connector
(a) Power supply
(b) Indoor/outdoor
Note:
Remo ing the handle increases the effecti eness of the wiring operation.
e sure to reinstall the handle.
< 2C >
< 3C >
< 5C >
Conduit plate T
Attach the conduit
connector (a)
Conduit connector
P P
A B C A B C
P P
D E D
A B C A B C
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.
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
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.
rounding
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
round
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.
For future ser icing, gi e extra length to the connecting wires.
Turn on the main power when the ambient temperature is -4 F
(-20 C) or higher.
Under conditions of -4 F (-20 C), it needs at least 4hr stand by
before the units operate in order to warm the electrical parts.
MXZ-5C42NA2
208/230, 1, 60
40
29.9 29.9 31.9
1.90
20
28.8
Trade size of conduit
3/4 in.
1/2 in.
Conduit plate U
<MXZ-3C/5C only>
Attach the conduit
connector (b)
P
A B C
* C : MXZ-3C only
P
E D E
A B C
insulation.
En-4