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MODEL
NTXWPH06B112A
✱
NTXWPH09B112A
✱
NTXWPH12B112A
✱
NTXWPH15B112A
✱
NTXWPH18B112A
✱
INDOOR UNIT
Power supply (V, PHASE, Hz)
208/230, 1, 60
Min. Circuit Ampacity
(A)
1.0
Fan motor (F.L.A.)
(A)
0.65
OUTDOOR UNIT
Power supply (V, PHASE, Hz)
208/230, 1, 60
Max. Fuse size (time delay)
(A)
15
20
Min. Circuit Ampacity
(A)
10
18
Fan motor (F.L.A.)
(A)
0.50
0.93
Compressor
(R.L.A)
(A)
7.4
13.6
(L.R.A)
(A)
9.2
17.0
Control voltage
Indoor unit - Remote controller: (Wireless)
Indoor unit - Outdoor unit: DC12-24 V (Polar)
Pipe
Outside
diameter
Minimum wall
thickness
Insulation
thickness
Insulation
material
inch (mm)
For liquid
1/4 (6.35)
0.0315 (0.8)
5/16 (8)
Heat resistant
foam plastic
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gravity
For gas
06/09/12
3/8 (9.52)
0.0315 (0.8)
5/16 (8)
15/18
1/2 (12.7)
0.0315 (0.8)
5/16 (8)
Limits
Pipe length
NTXWPH06/09/12B112A
✱
65 ft. (20 m) max.
NTXWPH15/18B112A
✱
100 ft. (30 m) max.
Height difference
NTXWPH06/09/12B112A
✱
40 ft. (12 m) max.
NTXWPH15/18B112A
✱
50 ft. (15 m) max.
No. of bends
10 max.
Pipe length
Up to 25 ft. (7.5 m)
No additional charge is required.
Exceeding 25 ft. (7.5 m)
Additional charge is required.
(Refer to the table below.)
Refrigerant to be added
1.08 oz each 5 ft. (20 g/m)
1-3. SPECIFICATIONS
1-3-1. POWER SUPPLY AND INDOOR/OUTDOOR
WIRE CONNECTION
• 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.
• Securely tighten screws.
Connecting wires and the 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 codes.
Power supply cable and ground wire
• Use solid or stranded conductor.
06/09/12
Min. AWG14
15/18
Min. AWG12
• Use copper conductors only.
* Follow local electrical codes.
Note:
When the indoor unit is powered from the outdoor unit, depend-
ing on local code, a disconnect switch needs to be installed to a
power supply circuit.
• Refrigerant adjustment... If pipe length exceeds 25 ft. (7.5 m),
additional refrigerant (R410A) charge is required.
(The outdoor unit is charged with refrigerant for pipe length up
to 25 ft. [7.5 m])
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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.
1-3-2. REFRIGERANT PIPES
• To prevent condensation, insulate the two refrigerant pipes.
• Refrigerant pipe bending radius must be 4 in. (100 mm) or more.
CAUTION
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right). Excessive insulation may cause incorrect installation of
the indoor unit, and too little insulation may cause condensate
to form.
1-2. SELECTING THE INSTALLATION LOCATION
INDOOR UNIT
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• Where cool (or warm) air spreads over the entire room.
• On a rigid wall to reduce the possibility of vibration.
• Where it is not exposed to direct sunlight. Do not expose
to direct sunlight also during the period following unpack-
ing to before use.
• Where it can be easily drained.
• At a distance 3 ft. (1 m) or more away from a TV and
radio. Operation of the air conditioner may interfere with
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the affected device.
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incandescent lights. In order to make the infrared remote
control operate the air conditioner normally. The heat
from the lights may cause deformation or the ultraviolet
may cause deterioration.
•
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• Where it is away from the other heat or steam source.
Note:
Install the indoor unit high on the wall where air can
distribute over the entire room.
REMOTE CONTROLLER
• Where it is convenient to operate and easily visible.
• Where children cannot easily touch it.
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Check that signals from the remote controller from
that position are received by the indoor unit (‘beep’
or ‘beep beep’ receiving tone sounds). Then, attach
remote controller holder to a pillar or wall and install
wireless remote controller.
Note:
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the signal from the wireless remote controller may not be
received.
OUTDOOR UNIT
• Where it is not overly exposed to strong winds.
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• Where neighbours are not annoyed by operation sound
or hot air.
• Where rigid wall or support is available to prevent the
increase of operation sound or vibration.
• Where there is no risk of combustible gas leakage.
• If installing the unit in a location high above the ground,
be sure to secure the unit legs.
• Where it is at least 10 ft. (3 m) away from the antenna
of TV set or radio. Operation of the air conditioner may
interfere with radio or TV reception in areas where recep-
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device.
• Install the unit horizontally.
• Please install it in an area not affected by snowfall or
blowing snow. In areas with heavy snow, please install
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Note:
• It is advisable to make a piping loop near outdoor unit
so as to reduce vibration.
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location where continuous direct sunlight or excessive
water can be avoided as much as possible.
Note:
When operating the air conditioner in low outside tem-
perature, be sure to follow the instructions described
below.
• Never install the outdoor unit in a place where its air
inlet/outlet side may be exposed directly to wind.
• To prevent exposure to wind, install the outdoor unit
with its air inlet side facing the wall and
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on the air outlet side.
Avoid the following places for installation where air
conditioner trouble is liable to occur.
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• Where there is an excessive amount of machine oil
in the air.
•
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oily smoke (such as cooking areas and factories, in
which the properties of plastic could be changed and
damaged).
• Salty places such as the seaside.
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sewage, waste water.
• Where there is high-frequency or wireless equipment.
• Where there is emission of high levels of VOCs,
including phthalate compounds, formaldehyde, etc.,
which may cause chemical cracking.
