Mitsubishi Electric MXZ-3B24NA Notice D'installation page 5

2. OUTDOOR UNIT INSTALLATION
2-1. INSTALLING THE UNIT
* Be sure to fix the unit's legs with bolts when installing it.
* Be sure to install the unit firmly to ensure that it does not fall by an earthquake or a gust.
° Refer to the figure in the right for concrete foundation.
* Do not use the drain socket and the drain caps in the cold region. Drain may freeze and it makes the fan stop.
Anchor leg 500
Fix here with g (19-11/16)
M10 bolts. 2
° yy
ao. Left ____
@ l
5 V
_ A Anchor both length Anchor both pitch
We Sees? ZZ
Z
7
(atm fe
Make with wider.
2-2. CONNECTING WIRES FOR OUTDOOR UNIT
* Be sure to use special circuits for room air conditioner. ELECTRICAL SPECIFICATIONS
° Wiring work should be based on applicable technical standards. OUTDOOR UNIT MXZ_3B24NA MXZ_3B30NA MXZ_AB36NA
| Bing connections should b e mage folowing he daaram Poa soy PHASE, OT, 80
Max. Fuse size (time delay) (A) 20 25
Min. Circuit Ampacity (A) 18 23
Fan motor (F.L.A) 0.93 0.93
(R.L.A) 11 14.4
Compressor
(L.R.A) 15 15
Control voltage Indoor unit-Remote controller : (Wireless)
Indoor unit-Outdoor unit : DC12-24V
1) Remove the service panel.
2) Remove the conduit cover.
3) Attach the conduit connector to conduit cover with lock nut then se-
cure it to the unit with screws. Connector
4) Connect ground wires to the TB support.
5) Loosen terminal screw, and connect indoor/outdoor unit connecting
wire (B) from the indoor unit correctly on the terminal block. Be careful oS
not to make mis-wiring. Fix the wire to the terminal block securely so
that no part of its core is appeared, and no external force is conveyed
to the connecting section of the terminal block.
6) Firmly tighten the terminal screws to prevent them from loosening.
After tightening, pull the wires lightly to confirm that they do not move.
7) Perform 5) and 6) for each indoor unit.
8) Connect power supply cord (A).
9) Close the service panel securely. Make sure that 3-2. PIPE CON-
NECTION is completed.
¢ After making connections between both power supply cord (A) and
indoor/outdoor unit connecting wire (B), be sure to fix both cable
CITT.
p~ Terminal block
uf for power supply
and wire with cable clamps. Ww
Screws x ,
Service panel 4BS6NA
Connecting order Power supply
* Connect the terminal block in
following order. re
A>B>CD—P (oli El
D unit is for 4B36NA only rey
i
i t
; |
=e
Terminal block for
indoor/outdoor unit
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.
*« Connect wires to the matching numbers of terminals.
sam ¢« Be sure to attach each screw to its correspondent terminal
INDOOR UNIT ALI 35 mm (5/8 in.) when securing the cord and/or the wire to the terminal block.
. 1-3/8 i n .
K q ( ™) CONNECTING WIRES AND CONNECTING GROUND WIRE
~ a * Use solid conductor AWG14 or stranded conductor AWG14.
Groundin * Use double insulated copper wire with 600 V insulation.
re ql x terminal 2 a ¢ Use copper conductors only.
i 1 Lead wire * Follow local electrical code.
208/230 VAC Power supply
1 phase 60 Hz Disconnect 208/230 VAC POWER SUPPLY CABLE AND GROUND WIRE
switch * 1 phase 2 wires 60 Hz . + Use solid or stranded conductor AWG14 (MXZ-3B//AWG12 (MXZ-
| |_| pre Grounding 4B)
; terminal ™
pounding eh ermine * Use copper conductors only.
ermine LGA. PM * Follow local electrical code.
Oo" O bs
Sis2sg Sisas = Z\ WARNING:
Terminal block ALO Terminal block Terminal block 4 Ground Use the indoor/outdoor unit connecting wire that meets the Stand-
ards to connect the indoor and outdoor units and fix the wire to
OUTDOOR UNIT the terminal block securely so that no external force is conveyed
D unit is for 4836NA only 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.
En-4