РУССКИЙ ЯЗЫК
ENGLISH
УКРАÏНСЬКА
ITALIANO ESPAÑOL FRANÇAIS DEUTSCH
ҚАЗАҚ ТІЛІ
INSTALLATION MANUAL
AIR
CONDITIONER
Please read this installation manual completely before installing the product.
Installation work must be performed in accordance with the national wiring
standards by authorized personnel only.
Please retain this installation manual for future reference after reading it thoroughly.
MULTI
Original instruction
[
Representative] LG Electronics Inc. EU Representative : LG Electronics European Shared Service Center B.V.
[
Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsan-gu, Changwon-si,
Krijgsman 1, 1186 DM Amstelveen, The Netherlands
Gyeongsangnam-do, KOREA
БЕЛАРУСКАЯ МОВА
O‘ZBEK TILI
ΕΛΛΗΝΙΚΆ
ČEŠTINA
NEDERLANDS
POLSKI
LIMBA ROMÂNĂ
MFL68883815
Rev.02_100820
www.lg.com
Copyright © 2017 - 2020 LG Electronics Inc. All Rights Reserved.
IMPORTANT SAFETY INSTRUCTIONS
2
ENGLISH
IMPORTANT SAFETY INSTRUCTIONS
Read the precautions in this
manual carefully before operating the unit.
This symbol indicates that the
Operation Manual should be
read carefully.
This appliance is filled with flammable
refrigerant (R32)
This symbol indicates that a service
personnel should be handling this
equipment with reference to the
Installation Manual.
READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.
Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product
WARNING
!
It can result in serious injury or death when the directions are ignored
CAUTION
!
It can result in minor injury or product damage when the directions are ignored
WARNING
!
• Installation or repairs made by unqualified persons can result in
hazards to you and others.
•
Installation work must be performed in accordance with the National Electric Code by qualified and authorized personnel only.
• The information contained in the manual is intended for use by
a qualified service technician familiar with safety procedures
and equipped with the proper tools and test instruments.
• Failure to carefully read and follow all instructions in this manual can result in equipment malfunction, property damage, personal injury and/or death.
• Compliance with national gas regulations shall be observed.
Installation
•
Do not use a defective or underrated circuit breaker. Use the correctly rated breaker and fuse. There is risk of fire or electric shock.
•
For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center. Do not disassemble or repair the product by yourself. There is risk of fire or electric shock.
IMPORTANT SAFETY INSTRUCTIONS
3
• Always ground the product as per the wiring diagram. Do not
connect the ground wire to gas or water pipes lightening rod or
telephone ground wire. There is risk of fire or electric shock.
• Install the panel and the cover of control box securely. There is
risk of fire or electric shock due to dust, water etc.
• Use the correctly rated breaker or fuse. There is risk of fire or
electric shock.
• Do not modify or extend the power cable. If the power cable or
cord has scratches or skin peeled off or deteriorated then it
must be replaced. There is risk of fire or electric shock.
• For installation, removal or reinstall, always contact the dealer
or an Authorized Service Center. There is risk of fire, electric
shock, explosion, or injury.
• Do not install the product on a defective installation stand. Be
sure that the installation area does not deteriorate with age. It
may cause product to fall.
• Never install the outdoor unit on a moving base or a place from
where it can fall down. The falling outdoor unit can cause damage or injury or even death of a person.
• In outdoor unit the step-up capacitor supplies high voltage
electricity to the electrical components. Be sure to discharge
the capacitor completely before conducting the repair work.
An charged capacitor can cause electrical shock.
•
When installing the unit, use the installation kit provided with the
product. Otherwise the unit may fall and cause severe injury.
• Indoor/outdoor wiring connections must be secured tightly and
the cable should be routed properly so that there is no force
pulling the cable from the connection terminals. Improper or
loose connections can cause heat generation or fire.
• Safely dispose off the packing materials. Like screws, nails,
batteries, broken things etc after installation or svc and then
tear away and throw away the plastic packaging bags. Children
may play with them and cause injury.
• Be sure to check the refrigerant to be used. Please read the
label on the product. Incorrect refrigerant used can prevent the
normal operation of the unit.
•
Do not turn on the breaker or power under condition that front
panel, cabinet, top cover, control box cover are removed or opened.
Otherwise, it may cause fire, electric shock, explosion or death.
ENGLISH
IMPORTANT SAFETY INSTRUCTIONS
4
ENGLISH
•
Use a vacuum pump or Inert (nitrogen) gas when doing leakage
test or air purge. Do not compress air or Oxygen and do not use
Flammable gases. Otherwise, it may cause fire or explosion.
• The appliance shall be stored in a room without continuously
operating ignition sources (for example: open flames, an operating gas appliance or an operating electric heater)
• Do not use means to accelerate the defrosting process or to
clean, other than those recommended by the manufacturer.
• Do not pierce or burn refrigerant cycle part.
• Be aware that refrigerants may not contain an odour.
• Keep any required ventilation openings clear of obstruction.
•
The appliance shall be stored in a well-ventilated area where the
room size corresponds to the room area as specified for operation.
•
Refrigerant tubing shall be protected or enclosed to avoid damage.
• Flexible refrigerant connectors (such as connecting lines between the indoor and outdoor unit) that may be displaced during normal operations shall be protected against mechanical
damage.
• A brazed, welded, or mechanical connection shall be made before opening the valves to permit refrigerant to flow between
the refrigerating system parts.
• Mechanical connections shall be accessible for maintenance
purposes.
Operation
• When the product is soaked (flooded or submerged) in water ,
contact an Authorized Service Center for repair before using it
again. There is risk of fire or electric shock.
• Be sure to use only those parts which are listed in the svc
parts list. Never attempt to modify the equipment. The use of
inappropriate parts can cause an electrical shock, excessive
heat generation or fire.
• Do not touch , operate, or repair the product with wet hands.
Hold the plug by hand when taking out. There is risk of electric
shock or fire.
• Do not place a heater or other heating appliances near the
power cable. There is risk of fire and electric shock.
IMPORTANT SAFETY INSTRUCTIONS
• Do not allow water to run into electric parts. Install the unit
away from water sources. There is risk of fire, failure of the
product, or electric shock.
• Do not store or use or even allow flammable gas or combustibles near the product. There is risk of fire.
• Do not use the product in a tightly closed space for a long
time. Perform ventilation regularly. Oxygen deficiency could
occur and hence harm your health.
•
Do not open the front grille of the product during operation. (Do
not touch the electrostatic filter, if the unit is so equipped.)
There is risk of physical injury, electric shock, or product failure.
• If strange sound, smell or smoke comes from product.Immediately turn the breaker off or disconnect the power supply
cable. There is risk of electric shock or fire.
• Ventilate the product room from time to time when operating it
together with a stove, or heating element etc. Oxygen deficiency can occur and hence harm your health.
• When the product is not to be used for a long time, disconnect
the power supply plug or turn off the breaker. There is risk of
product damage or failure, or unintended operation.
• Take care to ensure that nobody especially kids could step on
or fall onto the outdoor unit. This could result in personal injury
and product damage.
• Take care to ensure that power cable could not be pulled out
or damaged during operation. There is risk of fire or electric
shock.
• Do not place anything on the power cable. There is risk of fire
or electric shock.
• When flammable gas leaks, turn off the gas and open a window for ventilation before turning on the product. Do not use
the telephone or turn switches on or off. There is risk of explosion or fire.
• Make sure to ventilate sufficiently when this air conditioner
and a heating appliance such as a heater are used simultaneously. Failure to do so may result in fire, serious injury, or product failure.
• Periodic ( more than once/year ) cleaning of the dust or salt
particles stuck on the heat exchanger by using water.
5
ENGLISH
IMPORTANT SAFETY INSTRUCTIONS
6
ENGLISH
• Dismantling the unit, treatment of the refrigerant oil and eventual parts should be done in accordance with local and national
standards.
CAUTION
!
Installation
• Two or more people must lift and transport the product. Avoid
personal injury.
• Do not install the product where it will be exposed to sea wind
(salt spray) directly. It may cause corrosion on the product.
• Install the drain hose to ensure that the condensed water is
drained away properly. A bad connection may cause water
leakage.
• Keep level even when installing the product. To avoid vibration
or noise.
• Do not install the product where the noise or hot air from the
outdoor unit could damage or disturb the neighborhoods. It
may cause a problem for your neighbors and hence dispute.
• Always check for gas (refrigerant) leakage after installation or
repair of product. Low refrigerant levels may cause failure of
product.
• Any person who is involved with working on or breaking into a
refrigerant circuit should hold a current valid certificate from an
industry-accredited assessment authority, which authorizes
their competence to handle refrigerants safely in accordance
with an industry recognized assessment specification.
• Wear adequate personal protection equipment (PPE) when installing, maintaining or servicing the product.
Operation
• Do not use the product for special purposes, such as preserving foods, works of art, etc. It is a consumer air conditioner,
not a precision refrigeration system. There is risk of damage or
loss of property.
• Do not block the inlet or outlet of air flow. It may cause product failure.
IMPORTANT SAFETY INSTRUCTIONS
• Use a soft cloth to clean. Do not use harsh detergents, solvents or splashing water etc. There is risk of fire, electric
shock, or damage to the plastic parts of the product.
• Do not touch the metal parts of the product when removing
the air filter. There is risk of personal injury.
• Do not step on or put anything on the product. (outdoor units)
There is risk of personal injury and failure of product.
• Always insert the filter securely after cleaning. Clean the filter
every two weeks or more often if necessary. A dirty filter reduces the efficiency.
• Do not insert hands or other objects through the air inlet or
outlet while the product is operating. There are sharp and moving parts that could cause personal injury.
• Be cautious when unpacking and installing the product. Sharp
edges could cause injury.
• If the refrigerant gas leaks during the repair, do not touch the
leaking refrigerant gas. The refrigerant gas can cause frostbite
(cold burn).
• Do not tilt the unit when removing or uninstalling it. The condensed water inside can spill.
•
Do not mix air or gas other than the specified refrigerant used in
the system. If air enters the refrigerant system, an excessively
high pressure results, causing equipment damage or injury.
• If the refrigerant gas leaks during the installation, ventilate the
area immediately. Otherwise it can be harmful for your health.
• Dismantling the unit, treatment of the refrigerant oil and eventual parts should be done in accordance with local and national
standards.
• Replace the all batteries in the remote control with new ones
of the same type. Do not mix old and new batteries or different types of batteries. There is risk of fire or product failure.
• Do not recharge or disassemble the batteries. Do not dispose
off batteries in a fire. They may burn or explode.
• If the liquid from the batteries gets onto your skin or clothes,
wash it well with clean water. Do not use the remote if the
batteries have leaked. The chemicals in batteries could cause
burns or other health hazards.
7
ENGLISH
IMPORTANT SAFETY INSTRUCTIONS
8
ENGLISH
• If you swallow the battery fluid from a leak, wash out the inside of your mouth thoroughly and then consult a doctor. Failure to do so may result in serious health complications.
• Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open. Moisture may condense and wet or damage furniture.
• Do not expose your skin or kids or plants to the cool or hot air
draft. This could harm to your health.
• Do not drink the water drained from the product. It is not sanitary and could cause serious health issues.
•
Use a firm stool or ladder when cleaning, maintaining or repairing
the product at an height. Be careful and avoid personal injury.
• The appliance shall be stored so as to prevent mechanical
damage from occurring.
• Servicing shall only be performed as recommended by the
equipment manufacturer. Maintenance and repair requiring the
assistance of other skilled personnel shall be carried out under
the supervision of the person competent in the use of flammable refrigerants.
• The installation of pipe-work shall be kept to a minimum
• When mechanical connectors are reused indoors, sealing parts
shall be renewed.
• When flared joints are reused indoors, the flare part shall be refabricated.
•
This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or
lack of experience and knowledge, unless they have been given
supervision or instruction concerning use of the appliance by a
person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.
• This appliance can be used by children aged from 8 years and
above and persons with reduced physical, sensory or mental
capabilities or lack of experience and knowledge if they have
been given supervision or instruction concerning use of the appliance in a safe way and Understand the hazards involved.
Children shall not play with the appliance. Cleaning and user
maintenance shall not be made by children without supervision
TABLE OF CONTENTS
TABLE OF CONTENTS
9
ENGLISH
2 IMPORTANT SAFETY
INSTRUCTIONS
10 INSTALLATION
11 INSTALLATION OF OUT-
DOOR UNIT
11 Select the best location
13 Piping length and elevation
13 Refrigerant charge
14 FLARING WORK AND
CONNECTION OF PIPING
14 Preparation of Piping
15 Connection of piping - Outdoor
16 CONNECTING THE CABLE
BETWEEN INDOOR UNIT
AND OUTDOOR UNIT
16 Connect the cable to the Indoor unit
17 Connect the cable to the Outdoor unit
19 FORMING THE PIPING
22 INSTALLATION PI485
23 TEST RUNNING
24 FUNCTION
24 DIP S/W Setting
26 Forced Cooling Operation
26 Wiring Error Check
27 Saving Power Consumption
28 Night Quiet Mode
29 Mode Lock
30 MAX COMBINATION
CAPACITY
31 INSTALLATION GUIDE AT
THE SEASIDE
31 SEASONAL WIND AND
CAUTIONS IN WINTER
32 Model Designation
32 Airborne Noise Emission
20 AIR PURGING AND EVAC-
UATION
20 Checking method
21 Evacuation
INSTALLATION
Installation plate
Type "B" screws
Type "A" screw (6 EA) Type "A" screw (8 EA) Type "A" screw (7 EA)
Holder Remote Control
Type "A" screw and plastic anchors
10
ENGLISH
INSTALLATION
Installation Parts
Clearance of side discharge unit [Unit : mm(inch)]
Do not install the product where sufficient ventilation is not secured.
The performance may be decreased or the product may not be operated.
6) or less
1
00(19-11/
300(11-13/16)
or more
ss
erom
19-11/16) or le
0(
50
ro
)8/
3-93(0001
H
300(11-13/16)
10
39
00(
or more
or more
3/8)
-
D
L
h In case of series or another installation, please refer to related PDB.
5
30
0
(
11-13
or
m
/16
ore
)
600(23-19
or more
/32)
600(23-19/32) or more
1000(39-3/8) or more
00
0
1 (39-3/8) or more
11-13/16)
300(
or more
300(11-13/16)
or more
2000(78-3/4) or more
INSTALLATION OF OUTDOOR UNIT
more than
70cm
more than
30cm
more than
30cm
more than
60cm
more than 60cm
more than
70cm
more than
30cm
more than 60cm
more than
30cm
more than
60cm
INSTALLATION OF OUTDOOR UNIT
11
ENGLISH
Read completely, then follow step by step.
You need to select adequate installation location
considering the following conditions, and make
sure to acquire the consent of the user.
Select the best location
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 spaces indicated by arrows
around front, back and side of the unit.
3 Do not place animals and plants in the path of
the warm air.
4 Take the air conditioner weight into account
and select a place where noise and vibration
are minimum.
5 Select a place so that the warm air and noise
from the air conditioner do not disturb neighbors.
6 Place that can sufficiently endure the weight
and vibration of the outdoor unit and where
even installation is possible.
7 Place that has no direct influence of snow or
rain.
8
Place with no danger of snowfall or icicle drop.
9 Place without weak floor or base such as
decrepit part of the building or with a lot of
snow accumulation.
10 Sufficient ventilation is secured.
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.
INSTALLATION OF OUTDOOR UNIT
12
ENGLISH
Minimum floor area
- The appliance shall be installed, operated and stored in a room with a floor area larger than the mini-
mum area.
- Use the graph of table to determine the minimum area.
Amin (m2)
600
500
400
300
200
100
0
0 1.224 2 3 4 5 6 7 8
- m : Total refrigerant amount in the system
- Total refrigerant amount : factory refrigerant charge + additional refrigerant amount
- Amin : minimum area for installation
Floor standing
m (kg) Amin (m
< 1.224
1.224 12.9
1.4 16.82
1.6 21.97
1.8 27.80
2 34.32
2.2 41.53
2.4 49.42
2.6 58.00
2.8 67.27
3 77.22
3.2 87.86
3.4 99.19
3.6 111.20
3.8 123.90
4 137.29
4.2 151.36
4.4 166.12
2
)
-
Floor standing
m (kg) Amin (m
4.6 181.56
4.8 197.70
5 214.51
5.2 232.02
5.4 250.21
5.6 269.09
5.8 288.65
6 308.90
6.2 329.84
6.4 351.46
6.6 373.77
6.8 396.76
7 420.45
7.2 444.81
7.4 469.87
7.6 495.61
7.8 522.04
2
)
Wall mounted
m (kg) Amin (m
< 1.224
1.224 1.43
1.4 1.87
1.6 2.44
1.8 3.09
2 3.81
2.2 4.61
2.4 5.49
2.6 6.44
2.8 7.47
3 8.58
3.2 9.76
3.4 11.02
3.6 12.36
3.8 13.77
4 15.25
4.2 16.82
4.4 18.46
2
)
-
Wall mounted
m (kg) Amin (m
4.6 20.17
4.8 21.97
5.2 25.78
5.4 27.80
5.6 29.90
5.8 32.07
6 34.32
6.2 36.65
6.4 39.05
6.6 41.53
6.8 44.08
7 46.72
7.2 49.42
7.4 52.21
7.6 55.07
7.8 58.00
2
)
Ceiling Mounted
m (kg) Amin (m
< 1.224
1.224 0.956
1.4 1.25
1.6 1.63
1.8 2.07
2 2.55
2.2 3.09
2.4 3.68
2.6 4.31
2.8 5.00
3 5.74
3.2 6.54
3.4 7.38
3.6 8.27
3.8 9.22
4 10.21
4.2 11.26
4.4 12.36
2
)
-
Floor standing
Wall mounted
Ceiling mounted
m (kg)
Ceiling Mounted
m (kg) Amin (m
4.6 13.50
4.8 14.70
5.2 17.26
5.4 18.61
5.6 20.01
5.8 21.47
6 22.98
6.2 24.53
6.4 26.14
6.6 27.80
6.8 29.51
7 31.27
7.2 33.09
7.4 34.95
7.6 36.86
7.8 38.83
2
)
INSTALLATION OF OUTDOOR UNIT
13
Piping length and elevation
Multiple Piping Models (Unit: m)
Phase Capacity(kBtu/h) Total Length Max Length(A/B)
14/16 30 20 15 7.5
18 50 25 15 7.5
1Ø
21 50 25 15 7.5
24/27 70 25 15 7.5
30 75 25 15 7.5
40 85 25 15 7.5
CAUTION
A
h2
h1
!
Capacity is based on standard length and
maximum allowance length is on the
basis of reliability. If outdoor unit is at
higher elevation than the indoor units,
after 24m of vertical height, 1 oil trap is
required.
Max Elevation
(h1)
In - In Elevation
(h2)
ENGLISH
B
Multiple Piping Type
Refrigerant charge
The calculation of the additional charge should be taken in account for the length of extra pipe.
Multiple Piping Models (Unit: m)
Capacity
Phase
• Multiple Piping Models
Additional charge (g) = ((A Room Installation Length – Standard Length) x 20g/m
h CF = Max. number of connectable indoor unit – Total number of connected indoor unit
(kBtu/h)
14/16 7.5 20 30 20 20
18 7.5 25 50 22.5 20
1Ø
21 7.5 25 50 22.5 20
24/27 7.5 25 70 30 20
30 7.5 25 75 37.5 20
40 7.5 25 85 37.5 20
Standard
Length(m)
+ (B Room Installation Length – Standard Length) x 20g/m)
- CF(Correction Factor) x 150
Max Piping for
one room(m)
Max total Piping
Length
Chargeless
Length
Additional
Charge(g/m)
FLARING WORK AND CONNECTION OF PIPING
Copper
tube
90°
Slanted Uneven Rough
Pipe
Reamer
Point down
Flare nut
Copper tube
14
ENGLISH
FLARING WORK AND CONNECTION OF PIPING
Preparation of Piping
- Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the follow-
ing procedure.
- Use the de-oxidized copper as piping materials to install.
Cut the pipes and the cable
- Use the piping kit accessory or the pipes purchased locally.
- Measure the distance between the indoor
and the outdoor unit.
- Cut the pipes a little longer than measured
distance.
- Cut the cable 1.5m longer than the pipe
length.
Burrs removal
- Completely remove all burrs from the cut
cross section of pipe/tube.
- 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.
Putting nut on
- 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)
Flaring work
- Carry out flaring work using dedicated flaring
tool as shown below.
Pipe diameter
Inch (mm)
Ø 1/4 (Ø 6.35)
Ø 3/8 (Ø 9.52)
Ø 1/2 (Ø 12.7)
Ø 5/8 (Ø 15.88)
Ø 3/4 (Ø 19.05)
Firmly hold copper tube in a bar(or clamp) as
indicated dimension in the table above.
0.04~0.05 (1.1~1.3)
0.06~0.07 (1.5~1.7)
0.06~0.07 (1.6~1.8)
0.06~0.07 (1.6~1.8)
0.07~0.08 (1.9~2.1)
A inch (mm)
Wing nut type Clutch type
0~0.02
(0~0.5)
Bar
<Wing nut type>
"A"
Copper pipe
<Clutch type>
FLARING WORK AND CONNECTION OF PIPING
Inclined
Inside is shining without scratches.
Smooth all round
Even length
all round
Surface
damaged
Cracked Uneven
thickness
= Improper flaring =
Ø12.7(1/2 inch) Connector
Outdoor unit
Main gas
side valve
Main liquid
side valve
Gas side piping
ROOM A
ROOM B
ROOM C
ROOM D
ROOM E
Liquid
side piping
Check
- Compare the flared work with figure below.
- If flare is noted to be defective, cut off the
flared section and do flaring work again.
Connection of piping - Outdoor
Align the center of the piping and sufficiently
tighten the flare nut by hand.
Connecting pipe order
1) ROOM A~E gas side pipe
2) ROOM A~E liquid side pipe
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 N.m
Ø6.35 1/4 16±2
Ø9.52 3/8 38±4
Ø12.7 1/2 55±6
Ø15.88 5/8 75±7
Ø19.05 3/4 110±10
Torque
15
ENGLISH
CONNECTING THE CABLE BETWEEN INDOOR UNIT AND OUTDOOR UNIT
GN/YL
20mm
NORMAL
CROSS-SECTIONAL
AREA 0.75mm
2
H07RN-F
ø7.5mm
GN/YL
20mm
16
ENGLISH
CONNECTING THE CABLE BETWEEN INDOOR
UNIT AND OUTDOOR UNIT
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.
CAUTION
!
• 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.
• Connect the wires according to color codes by referring the wiring diagram.
CAUTION
!
Provide a circuit breaker between power source
and the unit as shown below.
Main power source
Air
Conditioner
Circuit Breaker
Use a circuit breaker
or time delay fuse.
!
The power cord connected to the outdoor unit should be complied with the following specifications (Cable type approved by HAR or SAA).
NORMAL CROSS SECTIONAL AREA 2.5 2.5 2.5 2.5 2.5 2.5 2.5 3.5
If the supply cord is damaged, it must be replaced by a special cord or
assembly available from the manufacturer of its service agent.
CAUTION
Phase 1Ø
Capacity (kBtu/h) 14 16 18 21 24 27 30 40
Cable Type H07RN-F
CONNECTING THE CABLE BETWEEN INDOOR UNIT AND OUTDOOR UNIT
Connect the cable to the Outdoor unit
17
ENGLISH
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.
2 Secure the cable onto the control board
with the holder (clamper).
3 Refix the cover control to the original posi-
tion with the screw.
4 Use a recognized circuit breaker between
the power source and the unit. A disconnection device to adequately disconnect all
supply lines must be fitted.
1Ø Models
Capacity (kBtu/h) 14 16 18 21 24 27 30 40
Circuit Breaker (A) 15 15 20 20 20 25 25 40
CAUTION
!
After the confirmation of the above conditions, prepare the wiring as follows.
Outdoor unit
Terminal block
Over 15mm
Holder for
power supply
cord
Cover control
Power cord
Connecting cable
Loosen terminal screw
Terminal block
1 Never fail to have an individual power circuit specifically for the air conditioner. As for the
method of wiring, be guided by the circuit diagram posted on the inside of control cover.
2 Firmly tighten the terminal screws to prevent them loosening. After tightening, pull the
wires lightly to confirm that they do not move. (If they are loose the unit, the unit will not
operate normally or it can cause burn-out of the wires.)
3 Specification of power source.
4 Confirm that electrical capacity is sufficient.
5 See to that the starting voltage is maintained at more than 90 percent of the rated volt-
age marked on the name plate.
6 Confirm that the cable thickness is as specified in the power source specification.
(Particularly note the relation between cable length and thickness.)
7 Do not install an earth leakage circuit breaker in a wet or moist area.
8 The following would be caused by voltage drop.
- Vibration of a magnetic switch, which will damage the contact point, fuse breaking, disturbance of the normal function of the overload.
9
The means for disconnection from a power supply shall be incorporated in the fixed wiring
and have an air gap contact separation of at least 3mm in each active(phase) conductors.
10 The Power cord connected to the unit should be selected according to the following
specifications.
CONNECTING THE CABLE BETWEEN INDOOR UNIT AND OUTDOOR UNIT
Round pressure terminal
Power wire
Connect same thickness
wiring to both sides.
It is forbidden to connect
two to one side.
It is forbidden to
connect wiring of
different thicknesses.
18
ENGLISH
Precautions when laying power wiring
Use round pressure terminals for connections to the power terminal block.
When none are available, follow the instructions below.
- Do not connect wiring of different thicknesses to the power terminal block. (Slack in the power
wiring may cause abnormal heat.)
- When connecting wiring which is the same thickness, do as shown in the figure below.
- For wiring, use the designated power wire and connect firmly, then secure to prevent outside
pressure being exerted on the terminal block.
- Use an appropriate screwdriver for tightening the terinal screws. A screwdriver with a small
head will strip the head and make proper tighterning impossible.
- Over-tightening the terminal screws may break them.
• Trap is required to prevent water from entering
into electrical parts.
Plastic
band
Taping
Drain hose
Pipings
Connecting
cable
Power supply
cord
Seal a small opening
around the pipings
with gum type
sealer.
Seal a small opening
around the pipings
with gum type sealant.
Trap
Trap
FORMING THE PIPING
FORMING THE PIPING
19
ENGLISH
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.
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.
AIR PURGING AND EVACUATION
20
ENGLISH
AIR PURGING AND EVACUATION
The air and moisture remaining in the refrigerant system have undesirable effects as indicated below.
- Pressure in the system rises.
- Operating current rises.
- Cooling(or heating) efficiency drops.
- Moisture in the refrigerant circuit may freeze
and block capillary tubing.
- 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.
Checking method
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. Check that
both the liquid and the gas side service valves
on the outdoor unit are kept closed at this
stage.
CAUTION
!
To avoid nitrogen entering the refrigerant
system in a liquid state, the top of the
cylinder must be higher than its bottom
when you pressurize the system. Usually,
the cylinder is used in a vertical standing
position.
- Do a leakage 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.
- 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.
Indoor unit
Manifold valve
Outdoor unit
Lo Hi
Pressure
gauge
Charge hose
Leakage test
Connect the manifold valve(with pressure
gauges) and dry nitrogen gas cylinder to this
service port with charge hoses.
CAUTION
!
Be sure to use a manifold valve for leakage
test. 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
551 P.S.I.G. with dry nitrogen gas and
close the cylinder valve when the gauge
reading reached 551 P.S.I.G. Next, test
for leaks with liquid soap.
Nitrogen gas
cylinder(in vertical
standing position)
AIR PURGING AND EVACUATION
Lo Hi
Manifold valve
Vacuum pump
Open
Close
Pressure
gauge
Indoor unit
Outdoor unit
21
ENGLISH
WARNING
!
Use a vacuum pump or Inert (nitrogen)
gas when doing leakage test or air purge.
Do not compress air or Oxygen and do
not use Flammable gases. Otherwise, it
may cause fire or explosion.
- There is the risk of death, injury, fire or
explosion.
Evacuation
- 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.
Required time for evacuation when 30 gal/h
If tubing length is
less than 10m (33 ft)
Less than 0.5 Torr Less than 0.5 Torr
- When the desired vacuum is reached, close
the "Lo" knob of the manifold valve and stop
the vacuum pump.
Finishing the Job
vacuum pump is used
If tubing length is
longer than 10m (33
ft)
- 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.
- With a service valve wrench, turn the valve
stem of liquid side valve counter-clockwise to
fully open the valve.
- Turn the valve stem of gas side valve counterclockwise to fully open the valve.
- Loosen the charge hose connected to the gas
side service port slightly to release the pressure,
then remove the hose.
- 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.
INSTALLATION PI485
22
ENGLISH
INSTALLATION PI485
Fix the PI485 PCB as shown in Fig.
Detailed installation method refer to PI485 Installation Manual.
18kBtu/h, 21kBtu/h, 24kBtu/h
27kBtu/h, 30kBtu/h, 40kBtu/h
Bolt
Tubing connection
Discharge
temperature
Discharge air
Intake temperature
Discharge
temperature
Discharge air
Intake temperature
Discharge
temperature
Discharge air
Intake temperature
TEST RUNNING
TEST RUNNING
23
ENGLISH
- Check that all tubing and wiring have been
properly connected.
- Check that the gas and liquid side service
valves are fully open.
Prepare remote control
Remove the battery cover by pulling it according to the arrow direction.
Insert new batteries making sure that the (+)
and (–) of battery are installed correctly.
Reattach the cover by pushing it back into
position.
NOTE
!
• Use 2 AAA(1.5volt) batteries. Do not
use rechargeable batteries.
• Remove the batteries from the remote
control if the system is not going to be
used for a long time.
- For reference, the gas side pressure of optimum condition is as below.(Cooling)
Refrigerant
R32 35°C (95°F)
!
If the actual pressure are higher than
shown, the system is most likely overcharged, and charge should be removed.
If the actual pressure are lower than
shown, the system is most likely undercharged, and charge should be added.
The air conditioner is now ready for use.
Outside ambi-
ent TEMP.
NOTE
The pressure of
the gas side
service valve.
8.5~9.5kg/cm2G
(120~135 P.S.I.G.)
Evaluation of the performance
Operate unit for 15~20 minutes, then check
the system refrigerant charge:
- Measure the pressure of the gas side service
valve.
- Measure the temperature of the intake and
discharge of air.
- Ensure the difference between the intake
temperature and the discharge is more than
8°C.
FUNCTION
24
ENGLISH
FUNCTION
DIP S/W Setting
If you set the DIP Switch when power is on, the change in setting is not applicable. The changing setting is enabled only when Power is reset.
DIP Switch
1234
Normal Operation (No Function)
Forced Cooling Operation
Wiring Error Check
Saving Power Consumption (Step 1)
Saving Power Consumption (Step 2)
Mode Lock (Cooling)
Mode Lock (Heating)
Night Quiet Mode (Step 1)
Night Quiet Mode (Step 2)
Function
Mode Lock (Cooling) + Night Quiet Mode (Step 1)
Mode Lock (Cooling) + Night Quiet Mode (Step 2)
Mode Lock (Cooling) + Saving Power Consumption (Step 1)
Mode Lock (Cooling) + Saving Power Consumption (Step 2)
Mode Lock (Heating) + Saving Power Consumption (Step 1)
Mode Lock (Heating) + Saving Power Consumption (Step 2)
WARNING
!
When you set the DIP switch, you should turn off the circuit breaker or shut the power
source of the product down.
CAUTION
!
• Unless the applicable DIP switch is set properly, the product may not work.
• If you want to set a specific function, request that the installer sets the DIP switch appropriately during installation.
FUNCTION
DIP-SW
SW01N
DIP_SW01D
5
25
ENGLISH
14/16(1Ø) kBtu/h
18/21/24(1Ø) kBtu/h
27/30(1Ø) kBtu/h
40(1Ø) kBtu/h
5
DIP_SW1
FUNCTION
26
ENGLISH
Forced Cooling Operation
Adding the refrigerant in winter.
Setting Procedure
1 Set the DIP Switch as follow after shutting the power source down.
2 Reset the power.
3 Check that the Red LED of PCB is on during work. (The indoor unit is operated by force.)
4 Add the specific amount of refrigerant.
CAUTION
!
- When the green LED of PCB is on, compressor is going to be off because of low pres-
sure.
- You should return the DIP Switch to operate normally after finishing the operation.
Wiring Error Check
You can check whether or not the wiring is correct.
Setting Procedure
1 Set the DIP Switch as follow after shutting the power source down.
2 Reset the power.
3 Check that the Red and Green LED of PCB are on during work.
(The indoor unit is operated by force.)
4 If the wiring is correct, the Green LED will light up.
If the wiring is wrong, display as below (Display only wrong connection.)
• Red LED : Piping Number
• Green LED : Wiring Number (Room)
FUNCTION
1 second1 second
1 second
LED1
(Red)
LED1
(Gree n)
1 second
3
3
2
2
27
ENGLISH
Example)
If the Red LED blinks twice and the Green
LED blinks 3 times, 2nd pipe is connected to
3rd room.
5 You should return the DIP Switch to oper-
ate normally after finishing wiring error
check.
CAUTION
!
• If Indoor unit doesn’t communicate to outdoor Unit, function could not be operated
correctly.
• Only the wrong wiring connection is displayed. You should change connection
correctly to operate the product.
• If Outdoor and Indoor temperature is too
low in winter, the wiring error check function will not be operated.
(Red LED is lighting)
Saving Power Consumption
Saving Power Consumption operation is the
function which enables efficient operation by
lowering the maximum power consumption
value.
Power
consumption
and current
Setting Procedure
1 Set the DIP Switch as follow after shutting
the power source down.
Step 1 Step 2
2 Reset the power.
Normal
Time
FUNCTION
28
ENGLISH
Saving Power Consumption Current level.
Phase 1Ø
Model 14k 16k 18k 21k 24k 27k 30k 40k
Step1(A) 889912131522
Step2(A) 778810111318
Saving Power Consumption with Mode Lock.
Saving Power
Consumption (step 1)
+ Mode Lock (Cooling)
Saving Power
Consumption (step 1)
+ Mode Lock (Heating)
Saving Power
Consumption (step 2)
+ Mode Lock (Cooling)
Saving Power
Consumption (step 2)
+ Mode Lock (Heating)
Night Quiet Mode
Night Quiet Mode operation lowers the noise level of the outdoor unit by changing the comp frequency and fan speed. This function is operated all night long.
Setting Procedure
1 Set the DIP Switch as follow after shutting the power source down.
h Noise level : Step 1 > Step 2
Step 1 Step 2
2 Reset the power.
Night Quiet Mode with Mode Lock.
Mode Lock (Cooling)
+ Night Quiet Mode
(step 1)
CAUTION
!
• If comp frequency and fan speed are down, the cooling capacity may decrease accordingly.
• This function is only available for Cooling Mode.
• If you want to stop the Night Quiet Mode, Change the DIP Switch.
• If operating indoor unit is set by the fan speed “Power”, Night Quiet Mode will be stopped
until fan speed “Power” is changed.
Mode Lock (Cooling)
+ Night Quiet Mode
(step 2)
Mode Lock
Setting Procedure
1 Set the DIP Switch as follow after shutting the power source down.
Only Cooling Mode Only Heating Mode
2 Reset the power.
Mode Lock with Night Quiet Mode
FUNCTION
29
ENGLISH
Mode Lock (Cooling)
+ Night Quiet Mode
(step 1)
Saving Power Consumption with Mode Lock.
Mode Lock (Cooling)
+ Saving Power
Consumption (step 1)
Mode Lock (Cooling)
+ Saving Power
Consumption (step 2)
Mode Lock (Cooling)
+ Night Quiet Mode
(step 2)
Mode Lock (Heating)
+ Saving Power
Consumption (step 1)
Mode Lock (Heating)
+ Saving Power
Consumption (step 2)
MAX COMBINATION CAPACITY
30
ENGLISH
MAX COMBINATION CAPACITY
Multi Piping Type
Capacity
(kBtu/h)
14 2 5, 7, 9, 12 21
16 2 5, 7, 9, 12, 15 24
18 3 5, 7, 9, 12, 15, 18 30
21 3 5, 7, 9, 12, 15, 18 33
24 4 5, 7, 9, 12, 15, 18, 24 39
27 4 5, 7, 9, 12, 15, 18, 24 41
30 5 5, 7, 9, 12, 15, 18, 24 48
40 5 5, 7, 9, 12, 15, 18, 24 52
The combination of indoor unit is to be decided that the sum of indoor unit capacity index must
be smaller than the maximum combination capacity of outdoor unit. We recommend to calculate
indoor unit capacity like below.
If you do not follow our recommendation, it will have some problems in low ambient condition
i.e. some indoor unit will not be able to heat very well in heating mode.
CALCULATION METHOD FOR THE CONNECTABLE TOTAL CAPACITY OF INDOOR UNIT
Sum up the capacity of all indoor unit, but high static duct type indoor unit capacity weights 1.3
times
Max Room No.
Combination Indoor Capacity
(kBtu/h)
Max Combination Capacity
(kBtu/h)
Ex)
1 Outdoor unit : A9UW566FA3(FM56AH)(connectable maximum capacity is 73kBtu)
Indoor unit:
AMNH186BHA0[MB18AH],AMNH246BHA0[MB24AH],AMNH246BHA0[MB24AH]
(18 + 24 + 24) x 1.3 = 66 x 1.3 = 85.8kBtu: this combination has a some problem
2 Out door unit: FM56AH
Indoor unit:
AMNH186BHA0[MB18AH],AMNH246BHA0[MB24AH],AMNH18GD5L0[MS18AH]
(18 + 24) x 1.3 + 18 + 72.6: this combination can be ok
Sea wind
Sea wind
Sea wind
Windbreak
INSTALLATION GUIDE
AT THE SEASIDE
CAUTION
!
• Air conditioners should not be installed
in areas where corrosive gases, such as
acid or alkaline gas, are produced.
• 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.
• 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.
INSTALLATION GUIDE AT THE SEASIDE
- 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.
Place with fluent water draining
- Install at a place with fluent water draining to
prevent damage from localized heavy rain
and avoid frequent flooded area.
31
ENGLISH
Selecting the location(Outdoor Unit)
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.
In case, to install the outdoor unit on the
seaside, set up a windbreak not to be
exposed to the sea wind.
• Periodic ( more than once/year ) cleaning of the dust or salt particles stuck on
the heat exchanger by using water.
SEASONAL WIND AND
CAUTIONS IN WINTER
- Sufficient measures are required in a snow
area or severe cold area in winter so that
product can be operated well.
- Get ready for seasonal wind or snow in winter even in other areas.
- Install a suction and discharge duct not to let
in snow or rain.
- Install the outdoor unit not to come in contact with snow directly. If snow piles up and
freezes on the air suction hole, the system
may malfunction. If it is installed at snowy
area, attach the hood to the system.
- Install the outdoor unit at the higher installation console by 50cm than the average
snowfall (annual average snowfall) if it is
installed at the area with much snowfall.
- Where snow accumulated on the upper part
of the Outdoor Unit by more than 10cm,
always remove snow for operation.
32
SM AWR09 BN0
Serial number
Indoor
Detailed product type
AQ : Deluxe SQ : Standard
AH* : Panel type color_Gallery(1), Silvr(V),
Red(E), Gold(G), White Silver(H)
AW* : Mirror type color_Mirror(R), Silver(V),
White(W)
AH : Ceiling cassette
L : Low static
No mark for Standard Inverter indoor units
Nominal Capacity
EX) 9,000 Btu/h Class ➝ '09'
24,000 Btu/h Class ➝ '24'
Type
Model Type
M : Multi Indoor unit
C : Common Indoor unit for
Universal and Multi
S : Wall mounted/ARTCOOL Mirror
J : Wall mounted A : ARTCOOL Panel
T : Cassette B : Duct V : Floor-ceiling
Q : Console
Chassis name
MU4
M27
Type of refrigerant
M : R410A R : R32
Nominal capacity
Ex) 18,000 Btu/h Class → '18'
Serial number
Outdoor unit chassis name
Indicates that this is multi system
outdoor unit
Ex)
MU3 : Connectable max. 3 indoor units
MU4 : Connectable max. 4 indoor units
U4 2
FM
40 U3 2AH
Model type
Outdoor unit chassis name
Serial number
H : Heat pump
Type of refrigerant
A : R410A
Nominal capacity
Ex) 48,000 Btu/h Class → '48'
Model type
FM : Inverter multi ststem of
Distributor Box type
ENGLISH
SEASONAL WIND AND CAUTIONS IN WINTER
1 The height of H frame must be more
than 2 times the snowfall and its width
shall not exceed the width of the product. (If width of the frame is wider than
that of the product, snow may accumulate)
2 Don't install the suction hole and dis-
charge hole of the Outdoor Unit facing
the seasonal wind.
Model Designation
Indoor unit
Outdoor unit
Airborne Noise Emission
The A-weighted sound pressure emitted by
this product is below 70 dB.
** The noise level can vary depending on the
site.
The figures quoted are emission level and are
not necessarily safe working levels. Whilst
there is a correlation between the emission
and exposure levels, this cannot be used reliably to determine whether or not further precautions are required. Factor that influence
the actual level of exposure of the workforce
include the characteristics of the work room
and the other sources of noise, i.e. the number of equipment and other adjacent processes and the length of time for which an operator exposed to the noise. Also, the permissible exposure level can vary from country to
country. This information, however, will
enable the user of the equipment to make a
better evaluation of the hazard and risk.
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