LG HMNC126D4A0, H4UC488FA0 Owner's manual

LG HMNC126D4A0, H4UC488FA0 Owner's manual
website http://www.lgservice.com
e-mail http://www.lgeservice.com/techsup.html
LG
MPS Multi Air Conditioner
INSTALLATION MANUAL
IMPORTANT
• Please read this instruction sheet completely before
installing the product.
• When the power cord is damaged, replacement work shall
be performed by authorized personnel only.
• Installation work must be performed in accordance with
the national wiring standards by authorized personnel
only.
ENGLISH
LG
MPS Multi Air Conditioner Installation Manual
TABLE OF CONTENTS
Installation
Requirements
Required Parts
Safety Precautions...............................3
Four type "A" screws & plastic
anchors
Introduction ...............................................5
Connecting cable
Symbols used in this manual..........5
Features .....................................................5
Installation guide map
Required Tools
Level gauge
Screw driver
Electric drill
Hole core drill(ø70mm)
Horizontal meter
Pipes: Gas side
Liquid side
Flaring tool set
Installation tools ...................................7
Insulation materials
Installation map....................................8
Selecting the best location ............9
Additional drain pipe
(Outer diameter ..............15.5mm)
Specified torque wrenches
1.8kg.m, 4.2kg.m, 5.5kg.m,
6.6kg.m
(different depending on model No.)
Installation guide at the seaside...10
Two type "B" screws
Installation .................................................7
Installation parts....................................7
Spanner ........................Half union
Piping length and elevation.........11
A glass of water
Fixing installation plate..................12
Screw driver
Ceiling opening dimensions
and hanging bolt location..............13
Drilling a hole in the wall ...............15
Hexagonal wrench(4mm)
Flaring work .........................................17
Gas-leak detector
Connecting the piping ..................18
Vacuum pump
installation of decorative panel...23
Gauge manifold
Connecting the cables ..................26
Checking the drainage ..................28
Owner's manual
Forming the piping..........................30
Thermometer
Air purging............................................31
Remote control holder
Test running .........................................33
Combination indoor units.............35
Combination table of Models....36
2 MPS Multi Air Conditioner
Safety Precautions
Safety Precautions
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to properties only.
The meanings of the symbols used in this manual are as shown below.
Be sure not to do.
Be sure to follow the instruction.
Do not disassemble or repair the product.
• Contact your dealer or service center.
Do not handle the flamable gas or explosive
materials near the product.
• Otherwise, it may cause fire or failure of
product.
Do not install the product on an defected
installation stand.
• Otherwise, It may cause injury or accident.
For installation, always contact the dealer or
service center.
• Otherwise, it may cause fire, electric shock,
explosion or injury."
For electric work, contact the dealer or
service center.
• Otherwise, It will cause fire or electric shock.
Always earth the product.
• It will cause fire or electric shock.
Do not install where flamable gas could
leak.
• Otherwise, it may cause esplosion or fire.
Be cautious when unpack and install the
product.
• Sharp edges could cause injury.
Do not install the product on an defected
installation stand.
• Otherwise, It may cause injury or accident
Do not use damaged power cable.
• It will cause fire or electric shock.
Installation Manual 3
ENGLISH
To prevent the injury of the user or other people and property damage, the following instructions
must be followed.
• Be sure to read before installing the air conditioner.
• Be sure to observe the cautions specified here as they include important items related to safety.
• Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is
classified by the following indications.
Safety Precautions
Always intstall an circuit breaker and main
breaker.
• No installation may cause fire and electric
shock.
If strange sound, smell or smoke come from
product, turn the breaker off or disconnect
the power supply cable.
• Otherwise, it may cause electric shock or fire.
Cover the electric part.
• Otherwise, it may cause fire or electric shock.
Do not open the suction inlet of the product
during operation.
• Otherwise, it may cause electric shock or
failure.
Do not touch(operate) product with wet
hands.
• Otherwise, it may cause fire or electric shock.
Do not put the heater, etc. near the power
cable.
• Otherwise, it may cause fire and electric shock.
Do not turn the breaker on/off or
connect/disconnect the power supply plug
during operation.
• Otherwise, it may cause fire or electric shock.
Do not touch the metal parts of the product
when removing the air filter.
• Otherwise, it may cause personal injury.
Do not step or put anyting on the product.
• Otherwise, it may cause personal injury and
failure of product.
Always inspect gas leakage after
installation and repair of product.
• Otherwise, it may cause failure of product.
Keep the level even in installing the
product.
• Otherwise, it may cause vibration or water
leakage.
4 MPS Multi Air Conditioner
Install the drain hose to ensure that drain
can be securely done.
• Otherwise, it may cause water leakage.
Do not install the product where the noise
or hot wind from the outdoor unit could
give any casualty to the neighborhood
• Otherwise, it may cause dispute with the
neighborhoods.
Introduction
Introduction
ENGLISH
Symbols used in this Manual
This symbol alerts you to the risk of electric shock.
This symbol alerts you to hazards that may cause harm to
the air conditioner.
NOTICE
This symbol indicates special notes.
Features
INDOOR
Model : S4,S5
Model : S7
Air Inlet
Triple Deodorizing Filter
Air Inlet
Air Filter
Air Filter
Signal Receptor
Front Panel
Front Panel
Air Filter
Signal Receptor
Power Button
Air Discharge
Model : S3,SZ
Model : S8
Air inlet
Air filter
Air discharge
Front panel
Signal receiver
ON/OFF button
Installation Manual 5
Introduction
TC
Air conditioner unit
Decorative panel
fixing screws
(hexagon M6 screws)
Temporarily fitting
at 2 poles
(Tightening about 10mm)
Piping side
Control box cover
Key holes
Louver
motor
Inlet Grille
Decorative panel
fixing screws
(Hexagon M6 screw)
Cover
Decorative panel
Cover display
Push
Outdoor
Inlet Grille
UE,UE1
Air Intake Vents
Control cover
Connecting wire
Connection pipe
Drain hose
Air Outlet Vents
Base Plate
UH
Air Intake
(side, rear)
Control cover
Connecting wire
Connection pipe
Drain hose
Air Outlet
6 MPS Multi Air Conditioner
Base Plate
Installation
Installation Parts
S4,S5,S8
Type "A" screw and plastic anchor
SZ,S3
S7
Remote control holder
Type "B" screw
Installation Tools
Figure
Name
Figure
Name
Screw driver
Ohmmeter
Electric drill
Hexagonal wrench
Measuring tape, Knife
Ammeter
Hole core drill
Gas-leak detector
Spanner
Thermometer,
Horizontal meter
Torque wrench
Flaring tool set
installation Manual 7
ENGLISH
Installation plate
Installation Map
Installation Map
NOTICE
Installation parts you should purchase.
Installation plate
Sleeve
Bushing-Sleeve
Putty(Gum Type Sealer)
Bend the pipe as closely
on the wall as possible,
but be careful that it
doesn't break.
Air Discarge
Vertical Air deflector
Operation Indication Lamps/
Signal Receptor
Vinyl tape (Wide)
Forced Operation Button
Saddle
Air Inlet Vents
Air Outlet Vents
Base Plate
8 MPS Multi Air conditioner
• Apply after carrying out a
drainage test.
• To carry out the drainage
test, remove the air filters
and pour water into the heat
exchanger.
Gas side piping
(Optional Parts)
Liquid side piping
(Optional Parts)
Additional drain pipe
Vinyl tape (Narrow)
Drain Hose
Connecting cable
(Optional Parts)
Installation
Select the best Location
ENGLISH
Indoor unit
1. Do not have any heat or steam near the unit.
2. Select a place where there are no obstacles
in front of the unit.
More than
5cm
More than 10cm
3. Make sure that condensation drainage can be
conveniently routed away.
More than
5cm
4. Do not install near a doorway.
5. Ensure that the interval between a wall and
the left (or right) of the unit is more than
50cm. The unit should be installed as high as
possible on the wall, allowing a minimum of
10cm from ceiling.
More than 2.3m
50 or
more
Above 250
330 or less
Install the indoor unit on the wall where the height
from the floor is more than 2 meters.
100
or more
Ceiling
Ceiling Board
Ceiling Board
50 or
more
Unit:cm
Outdoor unit
1. If an awning is built over the unit to prevent
direct sunlight or rain exposure, make sure
that heat radiation from the condenser is not
restricted.
2. Ensure that the space around the back and
sides is more than 10cm. The front of the unit
should have more than 70cm of space.
30 or less
20 or more
6. Use a stud finder to locate studs to prevent
unnecessary damage to the wall.
Floor
more than
20cm
more than
20cm
3. Do not place animals and plants in the path
of the warm air.
4. Take the weight of the air conditioner into
account and select a place where noise and
vibration are minimum.
5. Select a place where the warm air and noise
from the air conditioner do not disturb
neighbors.
Rooftop Installations:
If the outdoor unit is installed on a roof
structure, be sure to level the unit. Ensure the
roof structure and anchoring method are
adequate for the unit location. Consult local
codes regarding rooftop mounting.
more than
70cm
more than
30cm
more than
30cm
more than
70cm
Installation Manual 9
Installation
Installation guide at the seaside
1. Air conditioners should not be installed in areas where corrosive gases, such as acid or alkaline gas, are
produced.
2. Do not install the product where it could be exposed to sea wind (salty wind) directly. It can result
corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could
cause product malfunction or inefficient performance.
3. If outdoor unit is installed close to the seaside, it should avoid direct exposure to the sea wind.
Otherwise it needs additional anticorrosion treatment on the heat exchanger.
1. Selecting the location(Outdoor Unit)
1) If the outdoor unit is to be installed close to the seaside, direct exposure to the sea wind should be avoided.
Install the outdoor unit on the opposite side of the sea wind direction.
Sea wind
Sea wind
2) In case, to install the outdoor unit on the seaside, set up a windbreak not to be exposed to the sea wind.
Windbreak
Sea wind
• It should be strong enough like concrete to prevent
the sea wind from the sea.
• The height and width should be more than 150% of
the outdoor unit.
• It should be keep more than 70 cm of space
between outdoor unit and the windbreak for easy
air flow.
3) Select a well-drained place.
1. If you can’t meet above guide line in the seaside installation, please contact LG Electronics for the additional anticorrosion treatment.
2. Periodic ( more than once/year ) cleaning of the dust or salt particles stuck on the heat exchanger by using water
10 MPS Multi Air Conditioner
Installation
Piping length and elevation
Capacity(Btu/h)
Max total length
of all pipes
(A+B/A+B+C)
Max length of
each pipe
(A/B/C)
Min length of
each pipe
(A/B/C)
Max Elevation
between each
indoor unit and
outdoor unit (h1)
Max elevation
between indoor
units (h2)
7.5m(25ft)
18K
30m(100ft)
15m(50ft)
3m(10ft)
7.5m(25ft)
21K / 24K
45m(100ft)
15m(50ft)
3m(10ft)
7.5m(25ft)
7.5m(25ft)
36K
60m(100ft)
15m(50ft)
3m(10ft)
7.5m(25ft)
7.5m(25ft)
48K
60m(100ft)
15m(50ft)
3m(10ft)
7.5m(25ft)
7.5m(25ft)
Pipe Size
Indoor Capacity
(Btu/h)
9K
9.52mm(3/8")
6.35mm(1/4")
7.5m(25ft)
Additional
Refrigerant
20g/m
12K/18K
12.7mm(1/2")
6.35mm(1/4")
7.5m(25ft)
30g/m
15.88mm(5/8")
6.35mm(1/4")
7.5m(25ft)
30g/m
24K
ENGLISH
Multi Piping Type
Gas
Liquid
Standard Length
UE/UE1
UH
A
A
B
h1
h2
B
h1
h1
h2
C
h2
h1
h1
B
CAUTION: Capacity is based on standard length and maximum allowance
length is on the basis of reliability.
Installation Manual 11
Installation
Fixing Installation Plate
The wall you select should be strong and solid
enough to prevent vibration
Installation Plate
1. Mount the installation plate on the wall with
type "A" screws. If mounting the unit on a
concrete wall, use anchor bolts.
Mount the installation plate horizontally by
aligning the centerline using a level.
2. Measure the wall and mark the centerline. It
is also important to use caution concerning
the location of the installation plate-routing
of the wiring to power outlets is through the
walls typically. Drilling the hole through the
wall for piping connections must be done
safely.
Chassis
Hook
Type "A" screw
S4,S5,S8
Installation plate
D
Ø70mm
B
A
C
Left rear piping
Right rear piping
S3,SZ
CHASSIS
(Grade)
S4
A
50
Distance(mm)
B
C
105
59
S5/S8
95
122
235
S3
SZ
S7
58
35
30
3
33
34
292
156
110
D
105
122
3
33
34
S7
D
Ins
tall
ati
Ø70mm
C
on
Pla
te
Left rear piping
Ø70mm
For S3 Chassis, the center of the unit is
different from that of the Installation plate.
12 MPS Multi Air Conditioner
A
B
Right rear piping
Ø70mm
Installation
Ceiling opening dimensions and hanging bolt location
600 (Ceiling opening)
521(Hanging bolt)
450 (Hanging bolt)
75
39.5
570 Unit size
75
Ceiling
Level gauge
600 (Ceiling opening)
39.5
570 Unit size
• Select and mark the position for fixing bolts
and piping hole.
• Decide the position for fixing bolts slightly tilted
to the drain direction after considering the
direction of drain hose.
• Drill the hole for anchor bolt on the wall.
Unit:mm
790 (Ceiling opening)
572(Hanging bolt)
109
658 (Hanging bolt)
CAUTION:
• This air-conditioner uses a drain pump.
• Horizontly install the unit using a level
gauge.
• During the installation, care should be
taken not to damage electric wires.
66
744 Unit size
744 Unit size
790 (Ceiling opening)
66
109
Unit:mm
875 (Ceiling opening)
785 (Hanging bolt)
840 Unit size
45
875 (Ceiling opening)
45
101.5 672 (Hanging bolt) 101.5
330 (Hanging bolt) 60
60
450 (Ceiling opening)
390
931.6
893.4 (Hanging bolt)
860
840 Unit size
1,000 (Ceiling opening)
Unit:mm
Ceiling board
Installation Manual 13
ENGLISH
• The dimensions of the paper model for installing are the same as those of the ceiling opening dimensions.
Installation
NOTICE
• Thoroughly study the following installation locations:
1. In such places as restaurants and kitchens, considerable amount of oil steam and flour adhere
to the turbo fan, the fin of the heat exchanger and the drain pump, resulting in heat exchange
reduction, spraying, dispersing of water drops, drain pump malfunction, etc.
In these cases, take the following actions:
• Make sure that the ventilation fan for smoke-collecting hood on a cooking table has sufficient
capacity so that it draws oily steam which should not flow into the suction of the air
conditioner.
• Make enough distance from a cooking room to install the air conditioner in such a place
where it may not suck in oily steam.
Air conditioner
Take enough
distance
Cooking table
Use the ventilation fan
for smoke-collecting
hood with sufficient
capacity.
2. Avoid installing air conditioner in such circumstances where cutting oil mist or iron powder is in
suspension in factories, etc.
3. Avoid places where inflammable gas is generated, flows in, is stored or vented.
4. Avoid places where sulfurous acid gas or corrosive gas is generated.
5. Avoid places near high frequency generators.
The Indoor Unit Installation
Hanging bolt
(W3/8 or M10)
Nut
(W3/8 or M10)
Spring washer
(M10)
Keep the length of the bolt
from the bracket to 40mm
Flat washer for M10
(accessory)
Ceiling board
Flat washer for M10
(accessory)
Nut
(W3/8 or M10)
Air Conditioner body
Ceiling board
Paper model
for installation
Adjust the same height
14 Multi-Type Air Conditioner
150mm
Ceiling
Set screw of
paper model (4 pieces)
Open the ceiling board
along the outer edge of the
paper model
Installation
Ceiling
Flat washer for M10
(accessory) Ceiling board
Spring washer
(M10)
Flat washer for M10
(accessory)
Nut
(W3/8 or M10)
90mm
Nut
(W3/8 or M10)
Air Conditioner body
Paper model
for installation
Adjust the same height
• The following parts is option.
Hanging Bolt
Nut
Spring Washer
Plate Washer
- W 3/8 or M10
- W 3/8 or M10
- M10
- M10
Ceiling board
Set screw of
paper model (4 pieces)
Open the ceiling board
along the outer edge of the
paper model
• Drill the piping hole on the wall slightly tilted to the
outdoor side using a Ø 70 hole-core drill.
Wall
Indoor
Outdoor
5~7mm
CAUTION: Tighten the nut and bolt
to prevent unit falling.
Remote Controller Installation
• Although the room temperature sensor is in the indoor unit, the remote controller should
be installed in such places away from direct sunlight and high humidity.
Installation of the remote controller
• Select places that are not splashed with water.
• Select control position after receiving customer approval.
• The room temperature sensor is built in the indoor unit.
• This remote controller equipped with liquid crystal display. If this position is higher or lower,
display is difficult to see.(The standard height is 1.2 ~ 1.5m high)
Routing of the remote controller cord
• Keep the remote controller cord away from the refrigerant piping and the drain piping.
• To protect the remote controller cord from electrical noise, place the cord at least 5cm away
from other power cables (audio equipment, television set, etc.)
• If the remote controller cord is secured to the wall, provide a trap at the top of the cord to
prevent water droplets from running.
Installation Manual 15
ENGLISH
Keep the length of the bolt
from the bracket to 40mm
Hanging bolt
(W3/8 or M10)
Installation
WIRED REMOTE CONTROL INSTALLATION
DISASSEMBLING
• Separate the under plate from Remote control box.
Front case
Th
el
ow
er
pa
rt
Lever carefully
the box open
using a screw
driver, etc.
Remote control
box body
• Fix the under plate on the wall
• Fix the cord clamps on the wall by
ø 3 tapping screws (accessory).
• Fix the remote control cord.
Face of wall
Cord clamp
(accessory)
Under plate
Screw (accessory)
ELECTRICAL WIRING
Remote controller
(Main board)
CN REMO
Wire and make sure that teminal
numbers are matched on unit side and
remote controller side.
The maximum length of the cord is 100m.
If the length of the cord exceeds 50m,
2
use a wire size greater than 0.5mm .
Remote Control Preparation(OPTIONAL)
HOW TO MOUNT ONTO A WALL
HOW TO INSERT BATTERIES
Remove the battery cover from the remote
controller.
• Slide the cover according to the arrow
direction.
Insert the two batteries.
• Be sure that the (+) and (-) directions are
correct.
• Be sure that both batteries are new.
Re-attach the cover.
• Slide it back into position.
16 MPS Multi Air Conditioner
• Do not use rechargeable
batteries, such batteries differ
from standard dry cells in
shape, dimensions, and
performance.
• Romove the batteries from the
remote controller if the air
conditioner is not going to be
used for some long time.
Installation
Flaring Work
Cut the pipes and the cable.
1. Use the piping kit accessory or the pipes
purchased locally.
2. Measure the distance between the indoor and
the outdoor unit.
Copper
pipe
Slanted Uneven Rough
90°
3. Cut the pipes a little longer than measured
distance.
4. Cut the cable 1.5m longer than the pipe length.
Burrs removal
Pipe
1. Completely remove all burrs from the cut cross
section of pipe/tube.
Reamer
2. Put the end of the copper tube/pipe in a
downward direction as you remove burrs in
order to avoid dropping burrs into the tubing.
Point down
Putting nut on
Flare nut
• Remove flare nuts attached to indoor and
outdoor unit, then put them on pipe/tube having
completed burr removal.
(not possible to put them on after flaring work)
Copper tube
Flaring work
Outside diameter
mm
inch
Ø6.35
1/4
Ø9.52
3/8
Ø12.7
1/2
Ø15.88
5/8
Ø19.05
3/4
A
mm
0~0.5
0~0.5
0~0.5
0~1.0
1.0~1.3
Bar
Handle
"A"
1. Firmly hold copper pipe in a die in the dimension
shown in the table below.
2. Carry out flaring work with the flaring tool.
Bar
Yoke
Cone
Copper pipe
Clamp handle
Red arrow mark
Installation Manual 17
E N G LI S H
Main cause for gas leakage is due to defect in flaring work. Carry out correct flaring work in the
following procedure.
Installation
Check
Smooth all round
1. Compare the flared work with the figure by.
Inside is shiny without scratches
2. If a flared section is defective, cut it off and
do flaring work again.
= Improper flaring =
Even length
all round
Inclined Surface Cracked Uneven
damaged
thickness
Connecting the Piping - Indoor
Indoor
1. Prepare the indoor unit's piping and drain hose
for installation through the wall.
2. Remove the plastic tubing retainer(see the
illustration by) and pull the tubing and drain
hose away from chassis.
3. Replace only the plastic tubing holder 1, not
the holder 2 in the original position.
For right rear piping
Preparing the indoor unit's piping and drain hose for installation through the wall.
1. Route the indoor tubing and the drain hose in the direction of rear left or right
Drain hose
Drain hose
2. Tape the tubing, drain hose and the connecting cable. Be sure that the drain hose is located at
the Lowest side of the bundle.Locating at the upper side can cause drain pan to overflow inside the unit
Tape
Connecting
pipe
Drain hose
Connecting cable
Tape
Connecting
pipe
Drain hose
Connecting cable
CAUTION: If the drain hose is routed inside the room, insulate the hose with an insulation
material* so that dripping from “sweating”(condensation) will not damagefurniture or floors.
*Foamed polyethylene or equivalent is recommended
18 MPS Multi Air Conditioner
Installation
Connecting
cable
Drain hose
Press the lower left and right sides of the unit
against the installation plate until the hooks
engage into their slots(clicking sound).
Connecting the piping to the indoor unit and
drain hose to drain pipe.
1. Align the center of the pipes and sufficiently
tighten the flare nut by hand.
Indoor unit tubing
Flare nut
Pipes
2. Tighten the flare nut with a wrench.
Outside diameter
mm
inch
Ø6.35
1/4
Ø9.52
3/8
Ø12.7
1/2
Ø15.88
5/8
Torque
kg.m
1.8
4.2
5.5
6.6
3. When extending the drain hose at the indoor
unit, install the drain pipe.
Open-end wrench (fixed)
Flare nut
Wrench
Connection pipe
Indoor unit tubing
Drain pipe
Indoor unit drain hose
Adhesive
Wrap the insulation material around the
connecting portion.
Vinyl tape(narrow)
Plastic bands Insulation material
1. Overlap the connection pipe insulation
material and the indoor unit pipe insulation
material. Bind them together with vinyl tape
so that there may be no gap.
2. Wrap the area which accommodates the rear
piping housing section with vinyl tape.
Indoor unit pipe
Connection pipe
Wrap with vinyl tape
Vinyl tape (wide)
Connecting cable
Pipe
Vinyl tape(narrow)
3. Bundle the piping and drain hose together by
wrapping them with vinyl tape for enough to
cover where they fit into the rear piping
housing section.
Wrap with vinyl tape
Pipe
Drain hose
Vinyl tape(wide)
Installation Manual 19
E N G LI S H
4. Indoor unit installation
Hook the indoor unit onto the upper portion of
the installation plate.(Engage the two hooks
of the rear top of the indoor unit with the
upper edge of the installation plate.) Ensure
that the hooks are properly seated on the
installation plate by moving it left and right.
Installation
For left rear piping
1. Route the indoor tubing and the drain hose to
the required piping hole position.
1
2
2. Insert the piping, drain hose, and the
connecting cable into the piping hole.
Connecting
cable
3. Insert the connecting cable into the indoor unit.
• Don't connect the cable to the indoor unit.
• Make a small loop with the cable for easy
connection later.
Drain pipe
4. Tape the drain hose and the connecting
cables.
5. Indoor unit installation
• Hang the indoor unit from the hooks at the
top of the installation plate.
• Insert the spacer etc. between the indoor
unit and the installation plate and separate
the bottom of the indoor unit from the wall.
Connecting the piping to the indoor unit and
the drain hose to drain pipe.
1. Align the center of the pipes and sufficiently
tighten the flare nut by hand.
Indoor unit
Spacer
Installation plate
8cm
Indoor unit tubing
Flare nut
2. Tighten the flare nut with a wrench.
Outside diameter
mm
inch
Ø6.35
1/4
Ø9.52
3/8
Ø12.7
1/2
Ø15.88
5/8
Torque
kg.m
1.8
4.2
5.5
6.6
3. When extending the drain hose at the indoor
unit, install the drain pipe.
Pipes
Open-end wrench (fixed)
Flare nut
Wrench
Connection pipe
Indoor unit tubing
Drain hose
Indoor unit drain hose
Adhesive
20 MPS Multi Air Conditioner
Vinyl tape (narrow)
Installation
Wrap the insulation material around the
connecting portion.
1. Overlap the connection pipe heat insulation
and the indoor unit pipe heat insulation
material. Bind them together with vinyl tape
so that there may be no gap.
Indoor
unit piping
Connection
pipe
Vinyl tape
(wide)
Wrap with vinyl tape
Pipe
Vinyl tape(narrow)
Connecting cable
3. Bundle the piping and drain hose together by
wrapping them with cloth tape over the range
within which they fit into the rear piping
housing section.
Drain hose
Pipe
Vinyl tape(narrow)
Wrap with
vinyl tape(wide)
Reroute the pipings and the drain hose
across the back of the chassis.
Piping for
passage through
piping hole
Indoor unit installation
1. Remove the spacer.
2. Ensure that the hooks are properly seated on
the installation plate by moving it left and
right.
3. Press the lower left and right sides of the unit
against the installation plate until the hooks
engage into their slots(clicking sound).
Connecting
cable
Drain hose
Installation Manual 21
E N G LI S H
2. Wrap the area which accommodates the rear
piping housing section with vinyl tape.
Plastic bands Insulation material
Installation
Installation Information. For left piping. Follow the instruction below.
Good case
• Press on the upper side of clamp and unfold the tubing to downward slowly.
Bad case
• Following bending type from right to left may cause damage to the tubing.
22 MPS Multi Air Conditioner
Installation
Installation of Decorative Panel
Before installing the decorative panel,
always remove the paper template.
1. Temporarily fix two decorative panel fixing screws (hexagon M5 screw) on the unit body.
(Tighten by amount 10mm in length.)
The fixing screws (hexagon M5 screw) are included the decorative panel box.
2. Remove the air inlet grille from the decorative panel. (Remove the hook for the air inlet grille
cord.)
3. Hook the decorative panel key hole (
) on the screws fixed in step above, and slide the
panel so that the screws reach the key hole edge.
4. Retighten completely two temporarily fixed screws and other two screws. (Total 4 screws)
5. Connect the louver motor connector and display connector.
6. After tightening these screws, install the air inlet grille (including the air filter).
Piping side
Air conditioner unit
Decorative panel fixing screws
(hexagon M5 screws)
Temporally fitting at 2 places
(Tightening about 10mm)
Insta
mak ll the pa
in
n
pipin g sure el after
th
g
matc side o at the
f
indic hes the the unit
p
a
bod
pan tion of iping
y
el
the
deco
rativ
e
Control box cover
The arrow ( ) should point
to the side where the pipes are.
Louver
motor
Inlet Grille
Decorative panel
Display
Key holes
Lead wire for
louver motor and
display
Decorative panel fixing screws
(Hexagon M5 screw)
Inlet Grille
Installation Manual 23
ENGLISH
The decorative panel has its installation
direction.
Installation
Air conditioner unit
Decorative panel
fixing screws
(hexagon M6 screws)
Temporarily fitting
at 2 poles
(Tightening about 10mm)
Piping side
Control box cover
Key holes
Louver
motor
Inlet Grille
Decorative panel
fixing screws
(Hexagon M6 screw)
Cover
Decorative panel
Cover display
Push
Inlet Grille
CAUTION: Install certainly the decorative panel.
Cool air leakage causes sweating.
Water drops fall.
Good example
Bad example
Air conditioner
unit
Ceiling
board
Decorative panel
Fit the insulator (this part) and
be careful for cool air leakage
24 MPS Multi Air Conditioner
Air conditioner unit
Air
Cool air leakage
(no good)
Ceiling
board
Decorative
panel
Installation
Outdoor
Indoor unit
9K
12K/18K
24K
Gas
A->B
Liquid
Not available
Ø9.52-> Ø12.7
Ø12.7-> Ø15.88
Not available
Not available
Not available
2).Align the center of the pipings and sufficiently
tighten the flare nut by hand.
Connecting pipe size
Indoor units
Gas side
Liquid side
9K
Ø9.52(3/8)
Ø6.35(1/4)
12K/18K
Ø12.7(1/2)
Ø15.88(5/8)
Ø6.35(1/4)
Ø6.35(1/4)
24K
3).Finally, tighten the flare nut with torque wrench
until the wrench clicks.
• When tightening the flare nut with torque
wrench, ensure the direction for tightening
follows the arrow on the wrench.
Outside diameter
mm
inch
Ø6.35
1/4
Ø9.52
3/8
Ø12.7
1/2
Ø15.88
5/8
Ø19.05
3/4
ENGLISH
1) When piping installation work,
you must be used the connector.
Connector
Outdoor unit
A-UNIT
Gas side piping
A
B-UNIT
Liquid side piping
B
Torque wrench
C-UNIT
C
Torque
kg.m
1.8
4.2
5.5
6.6
6.6
Installation Manual 25
Installation
Connect the cable to the indoor unit.
Connect the cable to the indoor unit by connecting the wires to the terminals on the control
board individually according to the outdoor unit connection. (Ensure that the color of the
wires of the outdoor unit and the terminal No. are the same as those of the indoor unit.)
The earth wire should be longer than the common wires.
The circuit diagram is not subject to change without notice.
When installing, refer to the circuit diagram behind the panel front of Indoor Unit the wiring
diagram on the Control Cover Inside Outdoor Unit.
• The circuit diagram is not subject to change without notice.
• Be sure to connect wires according to the wiring diagram.
• Connect the wires firmly, so that not to be pulled out easily.
Main power source
Provide a circuit breaker between
power source and the unit as shown
below.
Circuit Breaker
Use a circuit breaker
or time delay fuse.
Air
Conditioner
The power cord connected to the outdoor unit should be complied with the following
specifications (Cable type approved by HAR or SAA).
2
( mm )
NORMAL CROSS
18K~ 21K
SECTION AREA
2.5
Cable Type
Grade
24K
30K
40K
48K
3
3.5
5
5.5
GN
/Y
L
20
H05RN -F
mm
ø7.5mm
The power connecting cable connected to the indoor and outdoor unit should be
complied with the following specifications (Type "B" approved by HAR or SAA).
GN
/ YL
20
mm
NORMAL
CROSS-SECTIONAL
AREA 0.75mm2
H05VV-F
26 MPS Multi Air Conditioner
Installation
Connect the cable to the Outdoor unit.
1. Remove the cover control from the unit by
loosening the screw.
Connect the wires to the terminals on the
control board individually as the following.
ENGLISH
Outdoor unit
Terminal block
Over 5mm
2. Secure the cable onto the control board with
the holder (clamper).
Holder for
power supply
cord
3. Refix the cover control to the original position
with the screw.
Power supply
cable
18k Outdoor side
A-UNIT
1
2
B-UNIT
3
4
1
2
3
4
Cover control
Connecting
cable
Connecting cable(Low voltage)
L
1
2
3
N
4
1
Terminal BLOCK
Indoor A-UNIT
2
3
4
Terminal BLOCK
Power Source
208/230V AC
(High voltage)
Indoor B-UNIT
36k / 48k Outdoor side
21k / 24k Outdoor side
A-UNIT
1
2
B-UNIT
3
4
1
2
3
A-UNIT
C-UNIT
4
1
2
3
4
1
2
3
1
L
1
2
3
Indoor A-UNIT
NOTICE
N
4
1
Power Source
208/230V AC
(High voltage)
2
3
4
2
3
N
C-UNIT
1
4
2
3
D-UNIT
4
1
Power Source
208/230V AC
(High voltage)
Connecting cable(Low voltage)
voltag
Connecting cable(Low voltage)
Terminal BLOCK
L
B-UNIT
4
1
2
3
4
1
2
3
4
1
2
3
4
1
2
2
3
4
Connecting c
3
4
1
2
3
4
Terminal BLOCK
Terminal BLOCK
Terminal BLOCK
Terminal BLOCK
Terminal BLOCK
Terminal BLOCK
Indoor B-UNIT
Indoor C-UNIT
Indoor A-UNIT
Indoor B-UNIT
Indoor C-UNIT
Indoor D-UNIT
:
1. Separately wire the high and low voltage line.
2. Use heat-proof electrical wiring capable of withstanding temperature up to 75°C(167°F).
3. Use outdoor and waterproof connection cable rated more than 300V for the connection between
indoor and outdoor unit. (For example, Type SJO-WA)
WARNING:
• Be sure to comply with local codes while running the wire from the indoor unit to
the outdoor unit(size of wire and wiring method, etc).
• Every wire must be connected firmly.
• No wire should be allowed to touch refrigerant tubing, the compressor or any
moving parts.
Installation Manual 27
Installation
Checking the drainage
1. Pour a glass of water on the evaporator.
Drain Hose
2. Ensure the water flows through the drain
hose of the indoor unit without any leakage
and goes out the drain exit.
Leakage
Check
Drain
Piping
Leakage
Check
Drain piping
1. The drain hose should point downward for
easy drain flow.
Downward slope
2. Do not make drain piping.
Accumulated
drain water
Air
Do not raise
Water
leakage
Water
leakage
28 MPS Multi Air Conditioner
Waving
Tip of drain hose
dipped in water
Water
leakage
Ditch
Less than
50mm gap
EN L
To check the drainage.
Installation
Indoor Unit Drain Piping
Pipe clamp
Upward
routing
not allowed
Indoor unit
Maintenance
drain port
Piping material: Polyvinyl chloride pipe VP-25
and pipe fittings
• Be sure to execute heat insulation on the
drain piping.
1/50~1/100
MAX 700mm
Heat insulation material: Polyethylene foam with thickness more than 8 mm.
DRAIN TEST
The air conditioner uses a drain pump to drain water.
Use the following procedure to test the drain pump operation:
Feed water
Flexible drain hose
(accessory)
Main
drain pipe
Drain Pump
Drain
port
Glue the joint
Drain hose connection
Use the clip (accessory)
Drain pan
• Connect the main drain pipe to the exterior and leave
it provisionally until the test comes to an end.
• Feed water to the flexible drain hose and check the
piping for leakage.
• Be sure to check the drain pump for normal
operating and noise when electrical wiring is
complete.
• When the test is complete, connect the flexible drain
hose to the drain port on the indoor unit.
Installation Manual 29
ENGLISH
• Drain piping must have down-slope (1/50 to
1/100): be sure not to provide up-and-down
slope to prevent reversal flow.
• During drain piping connection, be careful
not to exert extra force on the drain port on
the indoor unit.
• The outside diameter of the drain
connection on the indoor unit is 32mm.
Installation
Forming the piping
Form the piping by wrapping the
connecting portion of the indoor
unit with insulation material and
secure it with two kinds of vinyl
tape.
• If you want to connect an additional drain
hose, the end of the drain outlet should be
routed above the ground. Secure the drain
hose appropriately.
Seal a small
opening around
the pipings with
gum type sealer.
Taping
Drain hose
Pipings
Plastic
band
In cases where the outdoor unit is
installed below the indoor unit
perform the following.
1. Tape the piping, drain hose and connecting
cable from down to up.
2. Secure the tapped piping along the exterior
wall using saddle or equivalent.
In cases where the Outdoor unit is
installed above the Indoor unit
perform the following.
1. Tape the piping and connecting cable from
down to up.
2. Secure the taped piping along the exterior
wall. Form a trap to prevent water entering
the room.
3. Fix the piping onto the wall by saddle or
equivalent.
30 MPS Multi Air Conditioner
Connecting
cable
Power supply
cord
• Trap is required to prevent water from entering
into electrical parts.
Seal a small opening
around the pipings
with gum type sealer.
Trap
Trap
Installation
Air Purging
The air and moisture remaining in the refrigerant system have undesirable effects as indicated below.
1. Pressure in the system rises.
2. Operating current rises.
3. Cooling(or heating) efficiency drops.
4. Moisture in the refrigerant circuit may freeze and block capillary tubing.
5. Water may lead to corrosion of parts in the refrigeration system.
Therefore, after evacuating the system, take a leak test for the piping and tubing between the
indoor and outdoor unit.
Air purging with vacuum pump
1. Preparation
• Check that each tube(both liquid and gas side tubes) between the indoor and outdoor units have been
properly connected and all wiring for the test run has been completed. Remove the service valve caps
from both the gas and the liquid side on the outdoor unit. Note that both the liquid and the gas side
service valves on the outdoor unit are kept closed at this stage.
2. Leak test
• Connect the manifold valve(with pressure gauges) and dry nitrogen gas cylinder to this service port with
charge hoses.
Be sure to use a manifold valve for air purging. If it is not available, use a stop valve for this
purpose. The "Hi" knob of the manifold valve must always be kept close.
• Pressurize the system to no more than 150 P.S.I.G. with
Indoor unit
dry nitrogen gas and close the cylinder valve when the
gauge reading reached 150 P.S.I.G. Next, test for leaks
with liquid soap.
To avoid nitrogen entering the refrigerant system in a liquid
state, the top of the cylinder must be higher than its bottom
Outdoor unit
when you pressurize the system. Usually, the cylinder is
used in a vertical standing position.
1. Do a leak test of all joints of the tubing(both indoor and
outdoor) and both gas and liquid side service valves.
Bubbles indicate a leak. Be sure to wipe off the soap with a
clean cloth.
2. After the system is found to be free of leaks, relieve the
nitrogen pressure by loosening the charge hose connector
at the nitrogen cylinder. When the system pressure is
reduced to normal, disconnect the hose from the cylinder.
Manifold valve
Pressure
gauge
Lo
Hi
Charge hose
Nitrogen gas
cylinder(in vertical
standing position)
Installation Manual 31
E N G LI S H
Air purging
Installation
Soap water method
1. Remove the caps from the 2-way and 3-way valves.
2. Remove the service-port cap from the 3-way valve.
3. To open the 2-way valve turn the valve stem
counterclockwise approximately 90°, wait for about
2~3 sec, and close it.
4. Apply a soap water or a liquid neutral detergent on
the indoor unit connection or outdoor unit
connections by a soft brush to check for leakage of
the connecting points of the piping.
5. If bubbles come out, the pipes have leakage
Gas side
piping
Liquid side
piping
Evacuation
1. Connect the charge hose end described in the
preceding steps to the vacuum pump to
evacuate the tubing and indoor unit.
Confirm the "Lo" knob of the manifold valve is
open. Then, run the vacuum pump.
The operation time for evacuation varies with
tubing length and capacity of the pump. The
following table shows the time required for
evacuation.
Indoor unit
Required time for evacuation when 30 gal/h vacuum
pump is used
If tubing length is less
than 10m (33 ft)
10 min. or more
If tubing length is longer
than 10m (33 ft)
15 min. or more
Outdoor unit
2. When the desired vacuum is reached, close the
"Lo" knob of the manifold valve and stop the
vacuum pump.
Finishing the job
1. With a service valve wrench, turn the valve stem
of liquid side valve counter-clockwise to fully
open the valve.
2. Turn the valve stem of gas side valve counterclockwise to fully open the valve.
3. Loosen the charge hose connected to the gas
side service port slightly to release the pressure,
then remove the hose.
4. Replace the flare nut and its bonnet on the gas
side service port and fasten the flare nut
securely with an adjustable wrench. This
process is very important to prevent leakage
from the system.
5. Replace the valve caps at both gas and liquid
side service valves and fasten them tight.
This completes air purging with a vacuum pump.
The air conditioner is now ready to test run.
32 MPS Multi Air Conditioner
Manifold valve
Pressure
gauge
Lo
Hi
Open
Vacuum pump
Close
Installation
Test Running
ENGLISH
1. Check that all tubing and wiring are properly connected.
2. Check that the gas and liquid side service valves are fully open.
Prepare remote controller
1. Remove the battery cover by pulling it
according to the arrow direction.
2. Insert new batteries making sure that the (+)
and (–) of battery are installed correctly.
3. Reattach the cover by pushing it back into
position.
NOTICE
• Use 2 AAA(1.5volt) batteries. Do not use
rechargeable batteries.
• Remove the batteries from the remote
controller if the system is not used for a long
time.
Settlement of outdoor unit
1. Anchor the outdoor unit with a bolt and
nut(ø10mm) tightly and horizontally on a
concrete or rigid mount.
2. When installing on the wall, roof or rooftop,
anchor the mounting base securely with a
nail or wire assuming the influence of wind
and earthquake.
3. If the vibration of the unit is transmitted to the
hose, secure the unit with an anti-vibration
rubber.
Bolt
Tubing connection
Evaluation of the performance
Operate the unit for 15~20 minutes, then check
the system refrigerant charge:
1. Measure the pressure of the gas side service
valve.
Intake temperature
Discharge air
2. Measure the temperature of the intake and
discharge of air.
3. Ensure the difference between the intake
temperature and the discharge is more than
8°C
4. For reference; the gas side pressure of
optimum condition is as below.(Cooling)
The air conditioner is now ready for use.
Discharge
temperature
Refrigerant Outside ambient
TEMP.
R-22
35°C (95°F)
The pressure of the gas side
service valve.
4~5kg/cm2G(56.8~71.0 P.S.I.G.)
Installation Manual 33
Installation
NOTICE
If the actual pressure is higher than shown, the system is most likely over-charged, and charge
should be removed. If the actual pressure are lower than shown, the system is most likely
undercharged, and charge should be added.
PUMP DOWN
This is performed when the unit is relocated or the refrigerant circuit is serviced.
Pump Down means collecting all refrigerant into the outdoor unit without the loss of refrigerant.
Be sure to perform Pump Down procedure in the cooling mode.
Pump Down Procedure
1. Connect a low-pressure gauge manifold hose to the charge port on the gas side service valve.
2. Open the gas side service valve halfway and purge the air in the manifold hose using the
refrigerant.
3. Close the liquid side service valve(all the way).
4. Turn on the unit's operating switch and start the cooling operation.
5. When the low-pressure gauge reading becomes 1 to 0.5kg/cm2 G(14.2 to 7.1 P.S.I.G.), fully close
the gas side valve and then quickly turn off the unit. Now Pump Down procedure is completed,
and all refrigerant is collected into the outdoor unit.
34 MPS Multi Air Conditioner
Combination indoor units
Combination indoor units
ENGLISH
The indoor units connectable to the outdoor unit are shown below.
Model Name
Type
Chassis
Name
Capacity, Btu/h
9000
Standard Type
12000
18000
24000
S4
S5
SZ
Artcool Deluxe Type
S7
S3
S8
Ceiling concealed
B1
Duct (Low Static)
B2
Ceiling Cassette
TC
NOTICE
: 1. The total capacity(in Btu/h unit) of connected indoor unit models represents the total sum of the figures
expressed in the indoor model name.
2. Combinations in which the total capacity of the connected indoor units exceeds the capacity of the
outdoor unit will reduce the capacity of each indoor unit below the rated capacity during simultaneous
operation. Therefore, if circumstances allows, combine indoor units within the capacity of the outdoor unit
Installation Manual 35
Combination table of Models
Combination table of Models
• This table shows available combination.
Above standard combination, suitable performance may not be obtained depending on operating condition.
18K (2 rooms)
Unit-A
9
12
9
9
12
1 UNIT
2 UNIT
Combination
Unit-B
9
12
12
Total
9
12
18
21
24
21K(3Rooms)
Combination
1 UNIT
2 UNIT
3 UNIT
Unit-A Unit-B
9
12
9
9
9
12
12
12
9
9
Unit-C
Total
9
9
12
18
21
24
27
24K (3 rooms)
1 UNIT
2 UNIT
3 UNIT
36 MPS Multi Air Conditioner
Unit-A
9
12
18
9
9
12
9
9
Combination
Unit-B
Unit-C
9
12
12
18
9
9
Total
9
12
18
18
21
24
27
27
Combination table of Models
36K(4 Rooms)
A
9
12
18
9
9
9
12
12
18
9
12
18
12
18
18
3 UNIT
9
9
9
9
12
9
9
9
12
12
9
12
18
12
12
4 UNIT
9
9
9
2 UNIT
total
9
12
18
ENGLISH
1 UNIT
Combination table
B
C
D
18
21
27
24
30
36
27
30
36
33
36
9
36
48K(4
(4R
Rooms)
Combination Table
1UNIT
2UNIT
3UNIT
4UNIT
A
9
12
18
24
9
9
12
9
12
9
12
18
18
24
9
9
9
9
12
9
9
12
9
9
12
12
9
12
18
9
9
9
9
9
12
9
9
9
12
B
C
D
9
12
12
18
18
24
24
18
24
24
9
9
12
9
12
12
9
12
12
18
12
18
18
18
18
9
9
9
12
9
12
9
12
9
12
9
12
12
18
12
18
24
18
24
18
24
18
24
24
18
9
9
12
12
9
12
12
12
9
12
9
12
12
12
18
12
18
18
24
18
Total
9
12
18
24
18
21
24
27
30
33
36
36
42
48
27
30
33
36
36
39
42
42
45
45
48
48
51
54
54
36
39
42
45
45
48
48
51
51
54
Installation Manual 37
P/No.: 3828A20905D
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