Outdoor Unit Installation - Mitsubishi Electric MXZ-2B20NA Manuel D'installation

2. OUTDOOR UNIT INSTALLATION

2-1. CONNECTING WIRES FOR OUTDOOR UNIT
• Be sure to use special circuits for room air conditioner.
• Wiring work 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
Power supply (V, PHASE, Hz)
Max. Fuse size (time delay) (A)
Min. Circuit Ampacity (A)
Fan motor (F.L.A)
(R.L.A)
Compressor
(L.R.A)
Control voltage
1) Remove the service panel.
2) Fix the conduit connector to conduit cover with lock nut then secure it
against unit with screws.
3) Fix the conduit cover to the outdoor unit then secure it with screws.
4) Connect power supply cord and indoor/outdoor connecting wire to the ter-
minal block.
(Leave some slack in wires to allow easier servicing.)
5) Close the service panel securely. Make sure that 3-2. PIPE CONNECTION
is completed.
Remark:
* A disconnect switch should be required. Check the local code.
** Use a ring tongue terminal in order to connect a ground wire to terminal.
CONNECTING WIRES AND CONNECTING GROUND WIRE
• Use solid conductor Min. AWG14 or stranded conductor Min. AWG14.
• Use double insulated copper wire with 600 V insulation.
• Use copper conductors only.
* Follow local electrical code.
POWER SUPPLY CABLE AND GROUND WIRE
• Use solid or stranded conductor Min. AWG14.
• Use copper conductors only.
* Follow local electrical code.
WARNING:
Use the indoor/outdoor unit connecting wire that meets the Standards to connect the indoor and outdoor units and fix 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 fixing of the
wire could result in a fire.
For future servicing, give extra length to the connecting wires.
MXZ-2B20NA
208/230, 1, 60
20
15
0.96
10.1
15
Indoor unit-Remote controller : (Wireless)
Indoor unit-Outdoor unit : DC12-24V
INDOOR UNIT A
208/230 V AC
1phase 60 Hz
Terminal
block 1
Power supply 208/230 V AC
1phase 2wires 60 Hz
INDOOR UNIT B
Terminal block Terminal block
Grounding
terminal **
Disconnect 208/230 V AC
1phase 60 Hz
switch *
Grounding
terminal **
Terminal block Terminal block
UNIT A UNIT B
OUTDOOR UNIT
• 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.
Grounding terminal
Conduit
cover
Connector
Lock nut
Grounding
terminal **
Disconnect
switch *
Grounding
terminal **
Ground
5