1-3. SPECIFICATIONS
1-3-1. POWER
SUPPLY
AND
INDOOR/OUTDOOR
WIRE
CON-
Electrical specifications
NECTION
MODEL
MFZ-KAOQNA | MFZ-KA12NA | MEZ-KA18NA
¢
Power should be taken from an exclusive branched circuit.
¢
Wiring work should be based on applicable technical standards.
¢
Wiring connections should be made following the diagram.
Power supply (V, PHASE,
Hz)
208/230, 1, 60
*
Securely tighten screws.
UNIT AMPS (A)
<15
Connecting wires and the ground wire
¢
Use solid conductor AWG14
or stranded conductor AWG 14.
¢
Use double insulated copper wire with 600 V insulation.
Outside
[Minimum walll
Insulation
*
Use copper conductors only.
Pipe
diameter |
thickness
|thickness}
|Sulation
* Follow local electrical codes.
-
material
inch (mm)
Note:
For liquid | KAO9/12/18 | 1/4 (6.35) | 0.0315 (0.8) | 5/16 (8) | Heat resistant
When
the indoor unit is powered from the outdoor unit, depending on local
foam plastic
code, a disconnect switch (145A MAX) needs to be installed to a power supply
For gas
KA0S/2
3/8 (9.52) | 0.0345 (0.8)
15/16 (8)
0.045 Specific
circuit.
KA18
1/2 (12.7) | 0.0315 (0.8) | 5/16 (8) | gravity
1-3-2. REFRIGERANT
PIPES
*
To prevent condensation, insulate the two refrigerant pipes.
¢
Refrigerant pipe bending radius must be 4 in. (100 mm) or more.
Z\ CAUTION
Be sure to use the insulation of specified thickness (table on the right). Exces-
sive insulation may cause incorrect installation of the indoor unit, and too little
insulation may cause condensate to form.
*
The unit has flared connections on both indoor and outdoor sides.
*
Remove the valve cover from the outdoor unit, then connect the pipe.
¢
Refrigerant pipes are used to connect the indoor and outdoor units.
¢
Be careful not to crush or over bend the pipe in pipe bending.
1-4. INSTALLATION DIAGRAM
Use the wall
Wal hole cover (D)
ACCESSORIES
hole sleeve
—-Ndoor unit
Seal tho wall hole
Check the following parts before installation.
(C) to prevent
gap with putty (H).
<Indoor unit>
indoor/outdoor
wait hole
i
connecting
sleeve (C)
Attach the
p i p
(1)
{Drain hose
4
:
«|
to wall with pipe
wire (A) from
-
(2) |Remote controller holder
1
contacting
fixing band (E).
(3)
{Screws for (2) 3.5 x 16 mm
(Black)}
2
metal parts in
(4)
|Pipe cover
4
the wall and
Cut off the
Pipe fixing
(5)
[Band
3
to protect the
extra length.
2
band (E)
wiring from
y
(6)
{Battery (AAA) for (12)
2
rodents.
:
(7)
{Indoor unit mounting bracket
1
Fixing screw (F)
(8)
[Fixing screws for (7) 4 * 25 mm
5
(9) | Wood
screw for indoor unit fixation}
4
(10) | Washer of (9)
4
t——---~_ After the leak test, apply insulating material
(41)
[Felt tape (For left or left-rear piping) |
4
tightly so that there is no gap.
(12)|Wireless remote controller
4
(13) [Air cleaning filter
1
When the piping is to be attached to a wall com-
PARTS TO BE PROVIDED
prised of tin plate or metal netting, use chemically
AT YOUR SITE
treated wooden piece 25/32 in. (20 mm) or thicker
(F)
ipi
i
i
(A)
lIndoor/outdoor unit connecting wire]
1
between the wall and the piping, or wrap insulation
BIE
.
:
1
vinyl tape 7 to 8 turns around the piping.
(B)
jExtension pipe
To use existing piping, perform COOL operation
(C) |Wall hole sleeve
i
for 30 minutes and pump down before removing
(D) |Wall hole cover
i
the old air conditioner. Remake flare according to
(E) |Pipe fixing band
2to5
yae—""|_ the dimension for new refrigerant.
(F) | Fixing screw for (E) 4 x 20 mm
2to5
(G)
{Piping tape
1
(H)
|Putty
1
Drain hose
(I)
|(or soft PVC hose, 19/32 in. (15 mm)
4
inner diameter or hard PVC pipe VP16)}
(J)
|Refrigeration oil
1
(K)
|Power supply cord*
1
* Note:
Place indoor/outdoor unit connecting wire (A)
and power supply cord (K) at least 3 ft. (1m)
Units should be installed by licensed contractor
away from the TV antenna wire.
according to local code requirements.
En-2