Carrier MMK-AP0073H2UL User manual

AIR CONDITIONER (MULTI TYPE)
Indoor Unit
Model name:
High Wall Type
MMK-AP0073H2UL
MMK-AP0093H2UL
MMK-AP0123H2UL
MMK-AP0153H2UL
MMK-AP0183H2UL
MMK-AP0243H2UL
Installation Manual
Installation Manual 1
English
Manuel d’installation 32
Français
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High Wall Type Installation Manual
Contents
1 Accessory Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2 Precautions for Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3 Selection of Installation Place. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Installation of Indoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5 Drain Piping Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6 Indoor Unit Fixing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7 Drainage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8 Refrigerant Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
9 Electrical Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
10 Applicable Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
11 Test Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
12 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Please read this Installation Manual carefully before installing the Air Conditioner.
• This Manual describes the installation method of the indoor unit.
• For installation of the outdoor unit, refer to the Installation Manual attached to the outdoor unit.
ADOPTION OF NEW REFRIGERANT
This Air Conditioner uses R410A an environmentally friendly refrigerant.
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EN
1Accessory Parts
Accessory parts
<Others>
Part name Q’ty Shape
Installation plate 1
Wireless remote control 1
Battery 2
Remote control holder 1
Mounting screw Ø0.16” (4 mm) × 1.0” (25 mm) 6
Pan head wood screw Ø1/8” (3.1 mm) × 0.6” (16 mm) 2
Screw Ø0.16” (4 mm) × 0.4” (10 mm) 2
Heat insulator 1
Name
Owner’s manual
Installation manual
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2Precautions for Safety
Installing, starting up, and servicing air-conditioning equipment can be hazardous due to system pressures,
electrical components, and equipment location (roofs, elevated structures, etc.).
Only trained, qualified installers and service mechanics should install, start-up, and service this equipment.
Untrained personnel can perform basic maintenance functions such as cleaning heat exchanger. All other
operations should be performed by trained service personnel.
Before working on the equipment, observe precautions in the literature and on tags, stickers, and labels
attached to the equipment.
Follow all safety codes.Wear safety glasses and work gloves. Keep quenching cloth and fire extinguisher
nearby during brazing. Use care in handling, rigging, and setting bulky equipment.
Read these instructions thoroughly and follow all warnings or cautions included in literature and attached
to the unit. Consult local building codes and National Electrical Code (NEC) for special requirements.
Recognize safety information. This is the safety-alert symbol . When you see this symbol on the unit
and in instructions or manuals, be alert to the potential for personal injury.Understand these signal words:
DANGER, WARNING, and CAUTION. These words are used with the safety-alert symbol.
DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING
signifies hazards which could result in personal injury or death. CAUTION is used to identify unsafe
practices which may result in minor personal injury or product and property damage. NOTE is used to
highlight suggestions which will result in enhanced installation, reliability, or operation.
The manufacturer shall not assume any liability for the damage caused by not observing the description of
this manual.
WARNING
•Only a qualified installer or service person is allowed to do installation work.
Inappropriate installation may result in water leakage, electric shock or fire.
•Do not use any refrigerant different from the one specified for complement or replacement.
Otherwise, abnormally high pressure may be generated in the refrigeration cycle, which may
result in a failure or explosion of the product or an injury to your body.
•Connect ground wire. (grounding work)
Incomplete grounding may cause an electric shock.
Do not connect ground wires to gas pipes, water pipes, lightning rods or ground wires for telephone
wires.
•Turn off all the circuit breaker before attempting any electrical work.
Failure to do so may cause electric shock.
•Install the refrigerant pipe securely during the installation work before operating the air
conditioner.
If the air conditioner is operated with the valve open and without the refrigerant pipe, the compressor
sucks air and the refrigeration cycle is overpressurized, which may cause a burst or injury.
•When moving the air conditioner for the installation into another place, do not enter any
gaseous matter other than the specified refrigerant into the refrigeration cycle.
If air or any other gas is mixed in the refrigerant, the gas pressure in the refrigeration cycle becomes
abnormally high and it resultingly causes pipe burst and injuries on persons.
•Perform installation work properly according to the Installation Manual.
Inappropriate installation may result in water leakage, electric shock or fire.
•When the air conditioner is installed in a small room, provide appropriate measures to ensure
that the concentration of refrigerant leakage occur in the room does not exceed the critical level.
•Install the air conditioner securely in a location where the base can sustain the weight
adequately.
•Perform the specified installation work to guard against an earthquake.
If the air conditioner is not installed appropriately, accidents may occur due to the falling unit.
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EN
•If refrigerant gas has leaked during the installation work, ventilate the room immediately.
If the leaked refrigerant gas comes in contact with fire, noxious gas may generate.
•After the installation work, confirm that refrigerant gas does not leak.
If refrigerant gas leaks into the room and flows near a fire source, such as a cooking range, noxious gas
might generate.
•Electrical work must be performed by a qualified electrician in accordance with the Installation
Manual. Use an exclusive power supply for the air conditioner at the rated voltage.
An insufficient power supply capacity or inappropriate installation may cause fire.
•Use the specified wires for wiring connect the terminals. Securely fix them to prevent external
forces applied to the terminals from affecting the terminals.
•Conform to the regulations of the local electric company when wiring the power supply.
•For the refrigerant recovery work (collection of refrigerant from the pipe to the compressor),
stop the compressor before disconnecting the refrigerant pipe.
If the refrigerant pipe is disconnected while the compressor is working with the valve open, the
compressor sucks air and the refrigeration cycle is overpressurized, which may cause a burst or injury.
CAUTION
•THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT
DESTROY OZONE LAYER.
• The characteristics of R410A refrigerant are; easy to absorb water, oxidizing membrane or oil, and its
pressure is approx. 1.6 times higher than that of refrigerant R22. Accompanied with the new refrigerant,
refrigerating oil has also been changed. Therefore, during installation work, be sure that water, dust,
former refrigerant, or refrigerating oil does not enter the refrigerating cycle.
• To prevent charging an incorrect refrigerant and refrigerating oil, the sizes of connecting sections of
charging port of the main unit and installation tools are changed from those for the conventional
refrigerant.
• Accordingly the exclusive tools are required for the new refrigerant (R410A).
• For connecting pipes, use new and clean piping designed for R410A, and please care so that water or
dust does not enter.
•Tighten the flare nut with a torque wrench in the specified manner.
Excessive tightening of the flare nut may cause a crack in the flare nut after a long period, which may
result in refrigerant leakage.
•Wear heavy gloves during the installation work to avoid injury.
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3Selection of Installation Place
WARNING
•Install the air conditioner securely in a location where the base can sustain the weight
adequately.
If the strength is not enough, the unit may fall down resulting in injury.
CAUTION
•Do not install in a location where flammable gas leaks are possible.
If the gas leak and accumulate around the unit, it may ignite and cause a fire.
Upon approval of the customer, install the air conditioner in a place that satisfies the
following conditions.
• Place where the unit can be installed horizontally.
• Place where a sufficient servicing space can be ensured for safety maintenance and check.
• Place where drained water will not cause any problem.
Avoid installing in the following places.
• Place exposed to air with high salt content (seaside area), or place exposed to large quantities of sulfide
gas (hot spring).
(Should the unit be used in these places, special protective measures are needed.)
• A restaurant kitchen where a lot of oil is used or place near machines in a factory (Oil adhering to the
heat exchanger and resin part (turbo fan) in the indoor unit may reduce the performance, generate mist
or dew drop, or deform or damage resin parts.)
• Place close to a machine generating high frequency.
• Place where the discharged air blows directly into the window of the neighbor house. (Outdoor unit)
• Place where noise of the outdoor unit is easily transmitted.
(When the outdoor unit is installed on the boundary with the neighbor, pay due attention to the level of
noise.)
• Place with poor ventilation. (Before air duct work, check whether value of fan speed, static pressure and
duct resistance are correct.)
• Do not use the air conditioner for special purposes such as preserving food, precision instruments, or art
objects, or where breeding animals or growing plants are kept. (This may degrade the quality of
preserved materials.)
• Place where any of high-frequency appliances (including inverter devices, private power generators,
medical equipment, and communication equipment) and inverter-type fluorescent light is installed.
(A malfunction of the air conditioner, abnormal control, or problems due to noise to such appliances/
equipment may occur.)
• When the wireless remote control is used in a room equipped with an inverter-type fluorescent light or at
a place exposed to direct sunlight, signals from the remote control may not be received correctly.
• Place where organic solvent is used.
• Place near a door or window exposed to humid outside air (Dew drop may form.).
• Place where special spray is used frequently.
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EN
Installation diagram of Indoor and outdoor units
Installation space
The indoor unit shall be installed so that its top surface comes at a height of 6’7” (2 m) or more.
Also it must be avoided to put anything on top of the indoor unit.
*1 Provide a space as shown for service clearance for the cross flow fan.
Installation place
• A place which provides the spaces around the indoor unit as shown in the above diagram.
• A place where there is no obstacle near the air inlet and outlet.
• A place that allows easy installation of the piping to the outdoor unit.
• A place which allows the front panel to be opened.
CAUTION
• Direct sunlight to the indoor unit’ s wireless receiver should be avoided.
• The microprocessor in the indoor unit should not be too close to RF (Radio Frequency) noise sources.
(For details, see the owner’ s manual.)
ACL
For the rear left and left piping
Wall
Insert the cushion between the
indoor unit and wall, and tilt the
indoor unit for better operation.
Do not allow the drain hose to get
slack.
Cut the piping hole
sloped slightly.
Make sure to run the drain hose
sloped downward.
The auxiliary piping can be
connected to the left, rear left, rear
right, right, bottom right or bottom
left.
Right
Rear right
Bottom right
Bottom left
Rear left
2.0” (50 mm) or more
6.7”(170mm)ormore
33.5”(850mm)ormore
Hook
Installation plate
Hook
Connecting
pipe
Airfilter
(Attachtothefrontpanel.)
Remote control
holder
Pan head wood
screw
Batteries
Wirelessremote
control
Before installing the
wireless remote
control
1.Remove the battery
cover.
2.Insert 2 new
batteries (R03 [AAA]
type) following the
(+) and (–) positions.
Wireless
remote control
Cover
Batteries
Heat
insulator
*1
Left
* CAUTION
Connecting pipe cannot be connected to the right side
of the indoor unit when conduit pipe is used.
When connecting pipe is connected on the left or
bottom of the indoor unit, connect the conduit pipe on
other side.
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Wireless remote control
• A place where there are no obstacles such as a curtain that may block the signal from the indoor unit.
• Do not install the remote control in a place exposed to direct sunlight or close to a heating source, such
as a stove.
• Keep the remote control at least 3’3” (1 m) apart from the nearest TV set or stereo equipment.
(This is necessary to prevent image disturb-bounces or noise interference.)
• The location of the remote control should be determined as shown below.
4Installation of Indoor Unit
WARNING
Install the air conditioner certainly to sufficiently withstand the weight.
If the strength is insufficient, the unit may fall down resulting in human injury.
Perform a specified installation work to guard against strong wind or earthquake.
An incomplete installation can cause accidents by the units falling and dropping.
REQUIREMENT
Strictly comply with the following rules to prevent damage of the indoor units and human injury.
• Do not put a heavy article on the indoor unit. (Even units are packaged)
• Carry in the indoor unit as it is packaged if possible. If carrying in the indoor unit unpacked by necessity,
use buffering cloth to not damage the unit.
• To move the indoor unit, do not apply force to the refrigerant pipe, drain pan, foamed parts, or resin
parts.
• Carry the package by two or more persons, and do not bundle it with plastic band at positions other than
specified.
Following item shall be considered to install the unit.
• Considering air discharge direction, select an installation place where discharge air can circulate evenly
in a room. Avoid to install the unit at place with “NO GOOD” mark in the right figure.
(Side view) (Top view)
Remote control
Reception
range
*: Axial distance
Indoor unit
Remote control
* 23’ (7 m)
Indoor unit
16’5”(5m)
16’5” (5 m)
23’(7m)
75°
45°
45°
Reception range
Good installation place
Cooled well all over.
Bad installation place
: Not cooled well.
Screen
OK NO GOOD
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High Wall Type Installation Manual
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EN
Cutting a hole and mounting
installation plate
Cutting a hole
In case of installing the refrigerant pipes from the
rear:
1. Decide the hole position for piping at 7.1”
(180 mm) from the arrow mark (Ö) on the
installation plate and drill a hole at a slight
downward slant toward outdoor side.
Pipe hole; dia.2.6” (65 mm): MMK-AP007 to
018 type
Pipe hole; dia.3.1” (80 mm): MMK-AP024
type
NOTE
• To drill a wall that contains a metal lath, wire lath
or metal plate, use a pipe hole brim ring sold
separately.
Mounting the installation plate
When the installation plate is directly
mounted on the wall
1. Securely fit the installation plate onto the
wall by screwing it in the upper and lower
parts to hook up the indoor unit.
2. To mount the installation plate on a
concrete wall with anchor bolts, utilize the
anchor bolt holes as illustrated in the above
figure.
3. Install the installation plate horizontally in
the wall.
CAUTION
When the installation plate is installed with a
mounting screw, do not use the anchor bolt hole.
Otherwise the unit may fall down and result in
personal injury and property damage.
CAUTION
Failure to firmly install the unit may result in
personal injury and property damage if the unit
falls.
• In case of block, brick, concrete or similar type
walls, make 0.2” (5 mm) dia. holes in the wall.
• Insert clip anchors for appropriate mounting
screws.
NOTE
• Secure four corners and lower parts of the
installation plate with 6 mounting screws to
install it.
80
651111012101
80
65
1111012101
0.9” (23 mm)
The centre of the pipe hole is above the arrow
7.1” (180 mm)
Pipe hole
dia. 2.6” (65 mm):
AP007 to 018 type
dia. 3.1” (80 mm):
AP240 type
dia.2.6"
(65 mm)
5.2" (132 mm)
6.7" (170 mm)
1.6" (40 mm)
2.0" (50 mm)
6.7" (170 mm)
0.9" (23 mm)
3.3"(85 mm)
Anchor bolt holes
Hook
Hook
Pipe hole
Indoor unit
Thread
Weight
Mounting
Screw
Installation plate
Pipe hole
(dia. 2.6” (65 mm))
dia. 3.1” (80 mm))
Hook
6’7” (2 m) or more from floor
Fix the installation plate to the wall with screws to
make the indoor unit fit to the wall.
Projection
0.6” (15 mm) or less
Clip anchor
(local parts)
Mounting screw
0.16” (4 mm) × 1.0” (25 mm)
Anchor bolt
0.2” (5 mm) dia. hole
OK NO
GOOD
NO
GOOD
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5Drain Piping Work
Piping and drain hose forming
* Apply heat-insulation for both refrigerant pipe and drain hose surely so that no dew generates inside of
the equipment. (Use polyethylene foam for insulating material.)
1. Remove the front panel
The front panel must be removed for piping
connections in the left, bottom left, and rear
left directions.
• Open the air inlet grille upward.
• Remove the four screws securing the
front panel.
• Slightly open the lower part of the front
panel, and then pull the upper part of the
front panel toward you to remove it from
the rear plate.
2. Die-cutting front panel slit
Cut out the slit on the leftward or right side of the front panel for the left or right connection and the slit on
the bottom left or right side of the front panel for the bottom left or right connection with a pair of nippers.
3. Changing drain hose
For leftward connection, bottom-leftward connection and rear leftward connection's piping, it is necessary
to change the drain hose and drain cap.
Without changing the drain hose position, the indoor unit will not fit to the wall.
Remove the drain hose
• The drain hose can be removed by removing the screw securing the drain hose
and then pulling out the drain hose.
• To remove the drain hose, be careful of any sharp edges of steel plate. The
edges can injuries.
• To install the drain hose, insert the drain hose firmly until the connection part
contacts with heat insulator, and the secure it with original screw.
Piping
preparation
Die-cutting
front panel
slit
Rear right
Rear left
Bottom left
Left
Bottom right
Right
Removing
front panel
Changing
drain hose
3
21
Air inlet grille
Front panel
Heat insulator
Drain hose
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EN
Remove the drains cap
Clip the drain cap by needle-nose pliers and pull out.
Fix the drains cap
1) Insert a 4 mm hexagonal wrench in a centre head.
2) Firmly insert drains cap.
CAUTION
Firmly insert the drain hose and drain cap; otherwise, water may leak.
▼Right or left piping
• After scribing slits of the front panel with a knife or a marking-off pin, cut them with a pair of nippers or an
equivalent tool.
Remove the drain hose
1) Remove the front panel.
2) Remove the screws of drain hose.
3) Pull out the drain hose.
Fix the drain hose
1) Put the drain hose.
2) Screw the drain hose to the indoor unit.
3) Install the front panel.
4 mm
No gap Do not apply lubricating oil (refrigerant
machine oil) when inserting the drain cap.
Application causes deterioration and drain
leakage from the plug.
Insert a 4 mm hexagon
wrench
Slit
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▼Bottom right or bottom left piping
• After scribing slits of the front panel with a knife or a marking-off pin, cut them with a pair of nippers or an
equivalent tool.
▼Left-hand connection with piping
Bend the connecting pipe so that it is laid within 1.7” (43 mm) above the wall surface. If the connecting pipe
is laid exceeding 1.7” (43 mm) above the wall surface, the indoor unit may unstably be set on the wall. To
bend the connecting pipe, use a spring bender so as not to crush the pipe.
Bend the connection pipe within a radius of 1.2” (30 mm).
To connect the pipe after installation of the unit (figure)
NOTE
If the pipe is bent incorrectly, the indoor unit may be unsteadily set on the wall.
After passing the connecting pipe through the pipe hole, connect the connecting pipe to the auxiliary pipes
and wrap the facing tape around them.
CAUTION
• Arrange pipes so that any pipe does not stick out of
the rear plate of the indoor unit.
• Connect the auxiliary pipes and connecting pipes to
one another and cut off the insulating tape wound on
the connecting pipe to avoid double-taping at the
joint, moreover, seal the joint with the vinyl tape, etc.
• Since dew results in a machine trouble, make sure to
insulate both the connecting pipes.
(Use polyethylene foam as insulating material.)
• To bend a pipe, carefully do it, not to crush it.
Slit
22.4” (570 mm)
Outward form of indoor unit
(To the fore front of flare)
R 1.2” (30 mm) (Use polish polyethylene core
or the like for bending pipe.)
G
as s
id
e
Liquid side
Use the handle of screwdriver, etc.
16.5” (420 mm)
1.7” (43 mm)
80°
Indoor unit
Auxiliary pipes
Installation plate
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EN
6Indoor Unit Fixing
1. Pass the pipe through the hole in the wall,
and hook the indoor unit on the installation
plate at the upper hooks.
2. Swing the indoor unit to right and left to
confirm that it is firmly hooked up on the
installation plate.
3. While pressing the indoor unit onto the wall,
hook it at the lower part on the installation
plate. Pull the indoor unit toward you to
confirm that it is firmly hooked up on the
installation plate.
• For detaching the indoor unit from the installation
plate, pull the indoor unit toward you while
pushing its bottom up at the specified parts.
REQUIREMENT
The lower part of indoor unit may float, due to the
condition of piping and cannot be fixed it to the
installation plate. In that case, use the screws
provided to fix the unit and the installation plate.
Especially when the pipes are pulled out from
the left side, the unit must be screwed to the
installation plate.
7Drainage
1. Run the drain hose sloped downwards.
NOTE
• Hole should be made at a slight downward slant
on the outdoor side.
2. Put water in the drain pan and make sure
that the water is drained out of doors.
3. When extension drain hose is connected,
insulate the connecting part of extension
drain hose with shield pipe.
CAUTION
Arrange the drain pipe for proper drainage from
the unit.
Improper drainage can result in dew-dropping.
This air conditioner has the structure designed to
drain water collected from dew, which forms on the
back of the indoor unit, to the drain pan.
Therefore, do not store the power cord and other
parts at a height above the drain guide.
1
2
Press (unhook)
Hook
Hook here
Installation plate
PushPush
screw screw
Do not put the
drain hose end
in the drainage
ditch.
Do not put the
drain hose end
into water.
Do not rise the drain hose. Do not form the drain hose
into a wavy shape.
2.0”
(50 mm)
or more
Drain hose Inside the
room
Shield pipe
Extension drain hose
Wall
Drain guide
Space for pipes
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8Refrigerant Piping
Refrigerant Piping
1. Use copper pipe with 0.03” (0.8 mm) or
more thickness. (In case pipe size is dia.
5/8” (15.9 mm), with 0.04” (1.0 mm) or
more.)
2. Flare nut and flare works are also different
from those of the conventional refrigerant.
Take out the flare nut attached to the main
unit of the air conditioner, and use it.
REQUIREMENT
When the refrigerant pipe is long, provide support
brackets at intervals of 8’2” - 9’10” (2.5 - 3 m) to
clamp the refrigerant pipe. Otherwise, abnormal
sound may be generated.
CAUTION
IMPORTANT 4 POINTS FOR PIPING WORK
1. Remove dust and moisture from the inside of
the connecting pipes.
2. Tight connection (between pipes and unit)
3. Evacuate the air in the connecting pipes using
VACUUM PUMP.
4. Check the gas leakage. (Connected points)
Pipe size
Permissible Piping Length and
Height Difference
They vary according to the outdoor unit.
For details, refer to the Installation Manual attached
to the outdoor unit.
Flaring
• Cut the pipe with a pipe cutter.
Remove burrs completely.
Remaining burrs may cause gas leakage.
• Insert a flare nut into the pipe, and flare the pipe.
As the flaring sizes of R410A differ from those of
refrigerant R22, the flare tools newly
manufactured for R410A are recommended.
However, the
conventional tools can
be used by adjusting
projection margin of the
copper pipe.
▼Projection margin in flaring: B (Unit: in (mm))
Rigid (Clutch type)
▼Flaring dia. meter size: A (Unit: in (mm))
* In case of flaring for R410A with the
conventional flare tool, pull it out
approx.
0.02” (0.5 mm) more than that for
R22 to adjust to the specified flare
size.
The copper pipe gauge is useful for
adjusting projection margin size.
dia.: in (mm)
MMK- AP007 to
AP012 type
AP015 to
AP018 type AP024 type
Gas side 3/8” (9.5) 1/2” (12.7) 5/8” (15.9)
Liquid side 1/4” (6.4) 1/4” (6.4) 3/8” (9.5)
Outer dia. of
copper pipe
R410A tool
used
Conventional
tool used
R410A R410A
1/4” (6.4), 3/8” (9.5) 0 - 0.02” (0 - 0.5) 0.04” - 0.06”
(1.0 - 1.5)
1/2” (12.7), 5/8” (15.9)
Outer dia. of copper pipe A
R410A
1/4” (6.4) 0.36” (9.1)
3/8” (9.5) 0.52” (13.2)
1/2” (12.7) 0.65” (16.6)
5/8” (15.9) 0.78” (19.7)
B
+0
-0.02" (-0.4)
A
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High Wall Type Installation Manual
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EN
Tightening connection
CAUTION
• Do not apply excessive torque. Otherwise, the
nut may crack depending on the conditions.
▼Tightening torque of flare pipe connections
Pressure of R410A is higher than that of R22.
(Approx. 1.6 times) Therefore, using a torque
wrench, tighten the flare pipe connecting sections
which connect the indoor and outdoor units of the
specified tightening torque.
Incorrect connections may cause not only a gas
leak, but also a trouble of the refrigeration cycle.
Align the centres of the connecting pipes and
tighten the flare nut as far as possible with your
fingers. Then tighten the nut with a spanner and
torque wrench as shown in the figure.
REQUIREMENT
Tightening with an excessive torque may crack the
nut depending on installation conditions.
Tighten the nut within the specified tightening
torque.
Piping with outdoor unit
• Shape of valve differs according to the outdoor
unit.
For details of installation, refer to the Installation
Manual of the outdoor unit.
Leak check test, evacuation and
other procedure
For leak check test, evacuation, addition of
refrigerant, and gas leak check, refer to the
Installation Manual attached to the outdoor unit.
REQUIREMENT
Do not supply power to the indoor unit until the leak
check test and evacuation are completed. (If the
indoor unit is powered on, the pulse motor valve is
fully closed, which extends the time for vacuuming.)
Open the valve fully
Open the valve of the outdoor unit fully.
For details, refer to the Installation Manual attached
to the outdoor unit.
Heat insulation
Heat insulation for the pipes should be done
separately for the liquid side and gas side. Because
both of the liquid and gas side pipes become a low
temperature during cooling operation, sufficient
heat insulation should be done to prevent
condensation.
• Heat insulator with a heat resistance of 248 °F
(120 °C) or more must be used for the gas side
pipe.
• The pipe connection section of the indoor unit
must be heat insulated securely and compactly
with the attached heat insulator.
Unit: ft•lbs (N•m)
Outer dia. of copper pipe Tightening torque
1/4” (6.4 mm) 10 - 13 (14 - 18)
3/8” (9.5 mm) 24 - 31 (33 - 42)
1/2” (12.7 mm) 37 - 46 (50 - 62)
5/8” (15.9 mm) 50 - 60 (68 - 82)
Work using double spanner
Fix with vinyl tape
Heat insulator
(attached) Local side pipe
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High Wall Type Installation Manual
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Wireless remote control A-B
selection
To use 2 wireless remote controls for the respective
air conditioners, when the 2 air conditioners are
closely installed.
Wireless remote control B setup
1. Push button on the indoor unit to turn the air
conditioner ON.
2. Point the wireless remote control at the indoor unit.
3. Push and hold button on the wireless remote
control by the tip of the pencil.
“00” will be shown on the display.
4. Push during pushing . “B” will be shown on
the display and “00” will be disappear and the air
conditioner will turn OFF. The wireless remote control
B is memorized.
NOTE
• Repeat above step to reset wireless remote
control to be A.
• The wireless remote controls do not display “A”.
• The factory default of the wireless remote
controls is “A”.
CHK
MODE
CHK
PRESET
ONE-TOUCH
QUIET
SWING
TIMER
ON
FILTER CHK CLOCK
OFF
CLR
SLEEP SET
FIX Hi-POWER ECO
PURE
COMFORT
SLEEP
MODE
TEMP
FAN
“B” Display
“00” Display
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High Wall Type Installation Manual
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EN
9Electrical Connection
WARNING
1. Use predefined wire and connect them
certainly. Keep the connecting terminal
free from external force.
Improper wire connection or clamping may
result in exothermic, fire or malfunction.
2. Connect ground wire. (grounding work)
Incomplete grounding cause an electric
shock.
Do not connect ground wires to gas pipes,
water pipes, lightning rods or ground wires
for telephone wires.
3. Install appliance in accordance with
national wiring regulations.
Capacity shortage of circuit breaker or
incomplete installation may cause an
electric shock or a fire.
CAUTION
• Consult local building codes, NEC (National
Electrical Code) or CEC (Canadian Electrical
Code) for special requirements.
• If incorrect/incomplete wiring is carried out, it
will cause an electrical fire or smoke.
• Install circuit breaker is not tripped by shock
waves.
If circuit breaker is not installed, an electric
shock may be caused.
• Use the cord clamps attached to the product.
• Do not damage or scratch the conductive core
and inner insulator of power and control wires
when peeling them.
• Use the power cord and control wire of
specified thickness, type, and protective
devices required.
• Do not connect 208/230 V power to the terminal
blocks (U1, U2, A, B etc.) for control wiring.
(Otherwise, the system will fail.)
• Perform the electric wiring so that it does not
come to contact with the high-temperature part
of the pipe.
The coating may melt resulting in an accident.
• Do not turn on the circuit breaker of the indoor
unit until vacuuming of the refrigerant pipes
completes.
REQUIREMENT
• For power supply wiring, strictly conform to the
Local Regulation in each country.
• Run the refrigerant piping line and control wiring
line in the same line.
Power supply wire and control
wires specifications
Power supply wire and control wires are procured
locally.
For the power supply specifications, follow to the
table below. If capacity is little, it is dangerous
because overheat or seizure may be caused.
Indoor unit power supply
• For the power supply of the indoor unit, prepare
the exclusive power supply separated from that
of the outdoor unit.
▼Power supply
Control wiring, Central control wiring
• 2-core with non-polarity wires are used for the
control wiring between indoor unit and outdoor
unit and Central control wiring.
• To prevent noise trouble, use 2-core shielded
wire.
• The length of the communication line means the
total length of the control wire length between
indoor and outdoor units added with the central
control wire length.
Power supply 208/230-1-60
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High Wall Type Installation Manual
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Power supply wire
• Recommended wire diameter and wire length for power supply wire.
Electric characteristics
Control wire
Remote control wiring
• 2-core with non-polarity wire is used for wiring of the remote control wiring and group remote controls
wiring.
NOTE
• Use copper supply wire.
• Use UL wire rated 600V for the power supply.
• Use UL wire rated 300V for the remote control wires and control wires.
CAUTION
The remote control wire (Communication line) and AC208/230V wires cannot be parallel to contact each
other and cannot be stored in the same conduits. If doing so, a trouble may be caused on the control
system due to noise or other factor.
Power supply wiring Wire size: 2 ×AWG12
Ground 1 ×AWG12 or thicker Up to 164’1” (50m)
MCA : Minimum Circuit Amps
MOCP : Maximum Overcurrent Protection (Amps)
Model Power Supply Voltage Range (V) MCA MOCP
Min Max (A) (A)
MMK-AP0073H2UL
208/230V-1-60Hz 187 253
0.3 15
MMK-AP0093H2UL 0.3 15
MMK-AP0123H2UL 0.3 15
MMK-AP0153H2UL 0.5 15
MMK-AP0183H2UL 0.5 15
MMK-AP0243H2UL 0.5 15
Control wiring between indoor units, and outdoor
unit (2-core shielded wire) Wire size (Up to 3280’10” (1000m)) AWG16 (Up to 6561’8” (2000m)) AWG14
Remote control wiring, remote control inter-unit wiring Wire size: AWG20
Total wire length of remote control wiring and remote
control inter-unit wiring = L + L1 + L2 + … Ln
In case of wired type only Up to 1640’5” (500m)
In case of wireless type included Up to 1312’4” (400m)
Total wire length of remote control inter-unit wiring = L1 + L2 + … Ln Up to 656’2” (200m)
L1
L
L2 Ln
Indoor unit
Remote control inter-unit wiring
Indoor unit Indoor unit Indoor unit
Remote
control
(Max. 8 units)
Remote
control
wiring
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High Wall Type Installation Manual
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EN
Wiring between indoor and outdoor units
NOTE
An outdoor unit connected with control wiring between indoor and outdoor units wire becomes automatically
the header unit.
▼Wiring example
U1U2
U1U2U3U4L1 L2 L3 N U5U6
L1L2 A BU1U2L1L2 A B U1U2L1L2 A B U1U2L1L2 A B
A B
U1U2U3U4L1 L2 L3 N U5U6
A B A B
Outdoor Power supply
Ground
terminal Ground terminal
Outdoor Power supply
Circuit breaker Circuit breaker
Header outdoor unit Follower outdoor unit
Control wiring between outdoor units
Control wiring between indoor and outdoor units
Control wiring between indoor units
Indoor unit Indoor unit Indoor unit Indoor unit
Ground Ground Ground Ground
Remote
control Remote control Remote control
Indoor
power
supply
Circuit
breaker
208/230-3-60 208/230-3-60
208/230-
1-60
Disconnect
switch per NEC
Disconnect
switch per
NEC
Disconnect
switch per
NEC
Disconnect
switch per
NEC
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High Wall Type Installation Manual
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Wire Connection
REQUIREMENT
• Connect the wires matching the terminal
numbers.
Incorrect connection causes a trouble.
• The low-voltage circuit is provided for the wired
remote control and control wire.
(Do not connect the high-voltage circuit)
1. Remove the air inlet grille.
Open the air inlet grille upward and pull it
toward you.
2. Remove the front panel.
3. Remove the terminal cover and the clamp
base.
4. Insert the control wire fully into the wired
remote control/control terminal block, ,
, and secure then tightly with screws.
• Cover of control wires (2-core shielded
wire) should be removed up to 5.9”
(150mm)
▼To use optional wired remote control
Insert the wired remote control wire fully
into the wired remote control/control
terminal block, , , and secure then
tightly with screws.
• Strip off the wire approx. 0.4” (9 mm) to
connect.
Remote control wire and control wire
L1
L2
Clamp base
Terminal
Cover Cord clamp
Screw
Ground screw
Screw
Screw
Terminal block for
wired remote control/
control wiring
Power supply terminal block
L1 L2
Cover
Shield wire
0.4” (9)
5.5” (140)
5.9” (150)
AU2U1B
L1L2
Terminal block
for wired remote
control/control
wiring
Ground
screw for
shielded wire
Hole for power supply
wire and ground wire
Hole for control and
remote control wires
Ground wire for
shielded wire
Cord clamp
Control
wire
<Connecting control wire>
A B
AU2U1B
L1L2
Terminal block for
wired remote
control/control
wiring
Cord clamp
Hole for power supply
wire and ground wire
Hole for control and
remote control wires
Wiredremote
control wire
Insert the control
wire and remote
control wire
Conduit Cover
Conduit hole
(dia. 7/8” (22.2 mm))
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