LG | A4UQ28GFA0.AWGBASL | Installation guide | LG A4UQ28GFA0.AWGBASL INSTALLATION MANUAL

LG A4UQ28GFA0.AWGBASL INSTALLATION MANUAL
ENGLISH
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.
TYPE : MULTI
MFL67452303
Rev.01_032019
www.lg.com
Copyright © 2012 - 2019 LG Electronics Inc. All Rights Reserved.
2
TIPS FOR SAVING ENERGY
ENGLISH
TIPS FOR SAVING ENERGY
Here are some tips that will help you minimize the power consumption when you use the air
conditioner. You can use your air conditioner more efficiently by referring to the instructions
below:
• Do not cool excessively indoors. This may be harmful to your health and may consume more
electricity.
• Block sunlight with blinds or curtains while you are operating the air conditioner.
• Keep doors or windows closed tightly while you are operating the air conditioner.
• Adjust the direction of the air flow vertically or horizontally to circulate indoor air.
• Speed up the fan to cool or warm indoor air quickly, in a short period of time.
• Open windows regularly for ventilation as the indoor air quality may deteriorate if the air
conditioner is used for many hours.
• Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may block the
air flow or weaken the cooling / dehumidifying functions.
For your records
Staple your receipt to this page in case you need it to prove the date of purchase or for warranty
purposes. Write the model number and the serial number here:
Model number :
Serial number :
You can find them labeled on the side of each unit.
Dealer’s name :
Date of purchase :
IMPORTANT SAFETY INSTRUCTIONS
3
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.
• 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.
• If the air conditioner is installed in a small room, measures must be taken to prevent the
refrigerant concentration from exceeding the safety limit when the refrigerant leaks.
Consult the dealer regarding the appropriate measures to prevent the safety limit from being
exceeded. Should the refrigerant leak and cause the safety limit to be exceeded, Hazards due
to lack of oxygen in the room could result.
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.
• 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 scrathes 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.
ENGLISH
IMPORTANT SAFETY INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS
4
ENGLISH
• 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.
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 eletric 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.
• 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 befor turning on the
product. Do not use the telephone or turn switches on or off. There is risk of explosion or fire.
!
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.
IMPORTANT SAFETY INSTRUCTIONS
5
• Please install safely at a place that can sufficiently endure the weight of the product. (If the strength
is not sufficient, the product may fall and cause injury.)
• This appliance incorporates an earth connection for functional purposes only.
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.
• 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 leakaing refrigerant gas. The refrigernat 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
harmfull 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.
• If you eat the liquid from the batteries, brush your teeth and see doctor. Do not use the remote if the
batteries have leaked. The chemicals in batteries could cause burns or other health hazards.
• 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.
• This appliance is not intended to be accessible to the general public.
• 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.
• Means for disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.
• If the supply cable is damaged, it must be replaced by a special cable or assembly available from the
manufacturer of its service agent.
ENGLISH
• Always check for gas (refrigerant) leakage after installation or repair of product. Low refrigerant
levels may cause failure of product.
6
TABLE OF CONTENTS
ENGLISH
TABLE OF CONTENTS
2 TIPS FOR SAVING ENERGY
7 INSTALLATION
8 INSTALLATION OF INDOOR, OUTDOOR UNIT
8
9
10
11
12
Foundation for Installation
Fixing Installation Plate
Select the best location
Piping length and elevation
Refrigerant charge
13 INSTALLATION OF WIRED REMOTE CONTROLLER
15
Wired remote controller installation
16 FLARING WORK AND CONNECTION OF PIPING
16
17
19
22
23
Flaring work
Connection of piping - Indoor
Connection of piping - Outdoor
Installation
Installation of The Main Unit
24 CONNECTING THE CABLE BETWEEN INDOOR UNIT AND
OUTDOOR UNIT
24
25
27
Connect the cable to the Indoor unit
Connect the cable to the Outdoor unit
Connection of Wiring
28 CHECKING THE DRAINAGE AND FORMING THE PIPINGS
28
29
Checking the Drainage
Forming the Piping
30 AIR PURGING AND EVACUATION
30
31
Checking method
Evacuation
32 INSTALLATION PI485
33 TEST RUNNING
34 FUNCTION
34
35
36
36
37
38
DIP S/W Setting
Forced Cooling Operation
Wiring Error Check
Saving Power Consumption
Night Quiet Mode
PCB Display(18 / 26 k Model Only)
39 INSTALLATION GUIDE AT THE SEASIDE
INSTALLATION
ENGLISH
INSTALLATION
Installation Parts
Name
Quantity
Installation plate
1 EA
Shape
SC
SB
The feature can be changed according a type of model.
Type "A" screw
5 EA
Type "B" screw
2 EA
Type "C" screw
2 EA
Remote control
holder
1 EA
Installation Tools
Figure
7
Name
Figure
Name
Screw driver
Multi-meter
Electric drill
Hexagonal wrench
Measuring tape, Knife
Ammeter
Hole core drill
Gas-leak detector
Spanner
Thermometer,
Level
Torque wrench
Flaring tool set
8
INSTALLATION OF INDOOR, OUTDOOR UNIT
Foundation for Installation
• Check the strength and level of the installation ground so that the unit will not cause any
operating vibration or noise after installation.
• Fix the unit securely by means of the foundation bolts. (Prepare 4sets of M12 foundation bolts,
nuts and washers each which are available on the market.)
• It is best to screw in the foundation bolts until their length are 20 mm from the foundation
surface.
361
1012
Anti-vibration
materials
Concrete
base
Spring washer
Frame
Nut
Four bolt are
required
3 thread ridges
200
200
75
75
H-Beam
100
ENGLISH
INSTALLATION OF INDOOR, OUTDOOR UNIT
[Unit:mm]
Foundation bolt executing method
* The feature can be changed according to the type of model.
!
WARNING
• Be sure to remove the Pallet(Wood Support) of
the bottom side of the unit Base Pan before fixing
the bolt. It may cause the unstable state of the
unit settlement, and may cause freezing of the
heat exchanger resulting in abnormal operations.
• Be sure to remove the Pallet(Wood Support) of
the bottom side of the unit before welding. Not
removing Pallet(Wood Support) causes hazard of
fire during welding.
Pallet(Wood Support)
- Remove before Installation
INSTALLATION OF INDOOR, OUTDOOR UNIT
Indoor Type
Wall mounted
/ART COOL
Mirror
Type
9,12
1
18, 24
2,3
<Type 1>
Place a level on raised tab
Unit Outline
442
Left rear piping
Installation Plate
<Type 1>
Capacity
(kBtu/h)
442
Ø 65
Ø 65
Installation Plate
Right rear piping
The wall you select should be strong and solid
enough to prevent vibration
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.
ENGLISH
Fixing Installation Plate
9
95
133
175
217
Type "A" Screws
(Unit : mm)
<Type 2>
Installation Plate
Place a level on raised tab
Unit Outline
460
570
Chassis
Hook
<Type 2>
Ø 65
Left rear
piping
Right rear
piping
56
69
105
Type "A" Screws
Ø 65
Installation Plate
Measuring Tape
207
Measuring Tape
Hanger
(Unit : mm)
Installation Plate
<Type 3>
Chassis
Hook
460
<Type 3>
567
Unit
Outline
Ø 65
Type "A" Screws
Left Rear
Piping
184
220
Place a level on raised tab
Ø 65
Installation plate
Right Rear
156 Piping
307
(Unit : mm)
Chassis
Hook
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.
10 INSTALLATION OF INDOOR, OUTDOOR UNIT
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
Indoor unit
- Do not have any heat or steam near the unit.
- Select a place where there are no obstacles
in front of the unit.
- Make sure that condensation drainage can
be conveniently routed away.
- Do not install near a doorway.
- Ensure the spaces indicated by arrows from
the wall, ceiling, fence or other obstacles.
- Use a stud finder to locate studs to prevent
unnecessary damage to the wall.
!
CAUTION
Install the indoor unit on the wall where
the height from the floors more than 2.3
meters.
More than
10 cm
More than 20 cm
Outdoor unit
- 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.
- Ensure that the spaces indicated by arrows
around front, back and side of the unit.
- Do not place animals and plants in the path
of the warm air.
- Take the air conditioner weight into account
and select a place where noise and vibration
are minimum.
- Select a place so that the warm air and noise
from the air conditioner do not disturb
neighbors.
- Place that can sufficiently endure the weight
and vibration of the outdoor unit and where
even installation is possible.
- Place that has no direct influence of snow or rain.
- Place with no danger of snowfall or icicle
drop.
- Place without weak floor or base such as
decrepit part of the building or with a lot of
snow accumulation.
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 60 cm
More than 2.3 m
More than
10 cm
More than
10 cm
more than
30 cm
more than
30 cm
More than 20 cm
more than
60 cm
more than
70 cm
More than
10 cm
More than 2.3 m
More than
10 cm
more than 60 cm
more than
30 cm
More than 20 cm
more than
30 cm
More than
10 cm
More than 2.3 m
more than
70 cm
more than
60 cm
INSTALLATION OF INDOOR, OUTDOOR UNIT
11
Multiple Piping Models
(Unit: m)
Capacity(kBtu/h)
Total Length
Max Length(A/B)
18
26
30
36
30 or 50*
60 or 70**
70
75
25
25
25
25
Max Elevation
(h1)
15
15
15
15
ln-ln Elevation
(h2)
7.5
7.5
7.5
7.5
* : A3UQ18GFA0 only , ** : A4UQ28GFA0 Only
Distributor type Models
Capacity
(kBtu/h)
Total Length
40
48
54
135
145
145
(Unit: m)
Max Main Pipe Total Branch
Length (A/B)
Pipe Length
55
55
55
Max Branch
Pipe Length
80
90
90
Max Elevation In - In Elevation
(h1)
(h2)
15
15
15
A
A
30
30
30
Distributor
15
15
15
Branch Pipe
h2
Distributor
h2
h1
h1
Main Pipe
B
Multiple Piping Type
!
B
Distributor Type
CAUTION
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 24 m of vertical
height, 1 oil trap is required.
ENGLISH
Piping length and elevation
12 INSTALLATION OF INDOOR, OUTDOOR UNIT
ENGLISH
Refrigerant charge
The calculation of the additional charge should be taken in account for the length of extra pipe.
Multiple Piping Models(Additional Charge)
Model
Total Piping
Length(m)
18 k
26 k
30 k
36 k
X
X
X
-
X
X
X
X
200 g*
-
X
X
X
X
X
-
X
X
X
X
X
X
~30
~40
~50
~60
~70
~80
* : A4UQ28GFA0 only
(X : No addition, - : Not applied)
Distributor type Models
(Unit: m)
Main Piping length
Model
Branch piping length
Standard length(m)
Additional
refrigerant(g/m)
Standard length(m)
Additional
refrigerant(g/m)
5
5
5
50
50
50
5
5
5
20
20
20
40 k
48 k
54 k
• Distributor type Models
Additional charge (g) = (( Total Main piping Length - Main Standard Length ) x 50 g/m
+ (A Room Branch Length – Standard Length ) x 20 g/m
+ (B Room Branch Length – Standard Length ) x 20 g/m
+ (C Room Branch Length – Standard Length ) x 20 g/m +.. )
- CF(Correction Factor) x 100
h CF = Max. number of connectable indoor unit – Total number of connected indoor unit
Ex) Distributor type Model 1 Ø, 40 kBtu/h
A A
C
B
a
b
c
7k
9k
9k
d
e
9k
18 k
• Total main pipe(A+B+C) = 30 m
• Each branch pipe
a = 10 m
b= 8m
c= 5m
d= 3m
e = 10 m
*Additional Charge
=((30-5) x 50 + (10-5) x 20 + (8-5) x 20
+ (5-5) x 20 + (3-5) x 20 + (10-5) x 20)
- (7-5) x 100 = 1270 g
INSTALLATION OF WIRED REMOTE CONTROLLER 13
1 Please fix tightly using provided screw after placing remote controller setup board on the
place where you like to setup.
- Please set it up not to bend because poor setup could take place if setup board bends.
Please set up remote controller board fit to the reclamation box if there is a reclamation box.
2 Can set up Wired remote controller cable into three directions.
- Setup direction: the surface of wall reclamation, upper, right
- If setting up remote controller cable into upper and right side, please set up after removing
remote controller cable guide groove.
2
2
h Remove guide groove with long nose.
3
① Reclamation to the surface of the wall
② Upper part guide groove
③ Right part guide groove
3 Please fix remote controller upper part into the
setup board attached to the surface of the wall,
as the picture below, and then, connect with
setup board by pressing lower part.
- Please connect not to make a gap at the remote
controller and setup board’s upper and lower,
right and left part.
3
1
<Wire guide grooves>
<Connecting order>
Wall
Side
Wall
Side
<Separating order>
When separating remote controller from setup
board, as the picture below, after inserting into
the lower separating hole using screw driver and
then, spinning clockwise, remote controller is
separated.
- There are two separating holes. Please
individually separate one at a time.
- Please be careful not to damage the inside
components when separating.
Wall
Side
Wall
Side
ENGLISH
INSTALLATION OF WIRED REMOTE CONTROLLER
14 INSTALLATION OF WIRED REMOTE CONTROLLER
ENGLISH
4 Please connect indoor unit and remote controller using connection cable.
Please check if connector is normally connected.
Indoor
Unit side
Connecting cable
5 Please use extension cable if the distance between wired remote controller and indoor unit is
more than 10 m.
!
CAUTION
When installing the wired remote controller, do not bury it in the wall.
(It can cause damage in the temperature sensor.)
Do not install the cable to be 50 m or above.
(It can cause communication error.)
• When installing the extension cable, check the connecting direction of the connector of
the remote controller side and the product side for correct installation.
• If you install the extension cable in the opposite direction, the connector will not be
connected.
• Specification of extension cable: 2547 1007 22# 2 core 3 shield 5 or above.
• Apply totally enclosed noncombustible conduit in case of local building code Requiring
plenum cable usage.
INSTALLATION OF WIRED REMOTE CONTROLLER 15
- Since the room temperature sensor is in the remote controller, the remote controller box should
be installed in a place away from direct sunlight, high humidity and direct supply of cold air to
maintain proper space temperature. Install the remote controller about 5 ft(1.5 m) above the
floor in an area with good air circulation at an average temperature.
Do not install the remote controller where it can be affected by:
- Drafts, or dead spots behind doors and in corners.
- Hot or cold air from ducts.
- Radiant heat from sun or appliances.
- Concealed pipes and chimneys.
- Uncontrolled areas such as an outside wall behind the remote controller.
- This remote controller is equipped with a seven segment LED. display. For proper display of the
remote controller LED's, the remote controller should be installed properly as shown in Fig.1.
(The standard height is 1.2~1.5 m from floor level.)
yes
no
no
5 feet
(1.5 meters)
no
Fig.1 Typical locations for remote controller
ENGLISH
Wired remote controller installation
16 FLARING WORK AND CONNECTION OF PIPING
ENGLISH
FLARING WORK AND CONNECTION OF
PIPING
Flaring work
Main cause for gas leakage is due to defect in flaring work. Carry out correct flaring work in the
following procedure.
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 1.5 m longer than the pipe
length.
Copper
tube
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.
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)
A Inch (mm)
Wing nut type
Clutch type
0.04~0.05 (1.1~1.3)
0.06~0.07 (1.5~1.7)
0~0.02
0.06~0.07 (1.6~1.8)
(0~0.5)
0.06~0.07 (1.6~1.8)
0.07~0.08 (1.9~2.1)
Slanted Uneven Rough
Pipe
Reamer
Point down
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 flaring tool as
shown below.
90°
Flare nut
Copper tube
<Wing nut type>
Bar
"A"
Thickness
Inch (mm)
0.03 (0.7)
0.03 (0.8)
0.03 (0.8)
0.04 (1.0)
0.04 (1.0)
Firmly hold copper pipe in a bar in the
dimension shown in the table below.
Copper pipe
<Clutch type>
FLARING WORK AND CONNECTION OF PIPING 17
Smooth all round
Inside is shining without scratches.
= Improper flaring =
Even length
all round
Inclined Surface Cracked Uneven
damaged
thickness
Connection of piping - Indoor
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
Tape
Connecting
pipe
Drain hose
Connecting cable
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 damage furniture or floors.
*Foamed polyethylene or equivalent is recommended.
ENGLISH
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.
18 FLARING WORK AND CONNECTION OF PIPING
ENGLISH
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.
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 pipings to the indoor unit and
drain hose to drain pipe
- Align the center of the pipings and
sufficiently tighten the flare nut by hand.
- Tighten the flare nut with a wrench.
Outside diameter
mm
inch
Ø 6.35
1/4
Ø 9.52
3/8
Ø 12.7
1/2
Ø 15.88
5/8
Ø 19.05
3/4
Torque
N·m
16±2
38±4
55±6
75±7
110±10
Connecting
Drain hose
Indoor unit tubing
Flare nut
Pipings
Spanner (fixed)
Flare nut
Torque wrench
Connection pipe
Indoor unit tubing
- When extending the drain hose at the indoor
unit, install the drain pipe.
Drain pipe
Indoor unit drain hose
Adhesive
Wrap the insulation material around the
connecting portion.
- Overlap the connection pipe insulation
material and the indoor unit pipe insulation
material. Bind them together with vinyl tape
so that there is no gap.
- Wrap the area which accommodates the rear
piping housing section with vinyl tape.
Vinyl tape(narrow)
Plastic bands
Insulation material
Indoor
unit pipe
Connection
pipe
Vinyl tape
Wrap with vinyl tape
(wide)
Connecting cable
Pipe
Vinyl tape(narrow)
FLARING WORK AND CONNECTION OF PIPING 19
Wrap with vinyl tape
Pipe
Vinyl tape(wide)
Drain hose
!
CAUTION
Installation Information (For right piping) For right 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 left to right could
cause problem of pipe damage.
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
Ø 12.7(1/2 inch) Connector
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
Ø 6.35
1/4
Ø 9.52
3/8
Ø 12.7
1/2
Ø 15.88
5/8
Ø 19.05
3/4
Torque
N·m
16±2
38±4
55±6
75±7
110±10
Outdoor unit
Main liquid
side valve
Liquid
side piping
Main gas
side valve
Gas side piping
ROOM A
ROOM B
ROOM C
ROOM D
ENGLISH
- Bundle the piping and drain hose together by
wrapping them with vinyl tape over the
range within which they fit into the rear
piping housing section.
20 FLARING WORK AND CONNECTION OF PIPING
ENGLISH
- For the units with capacity more than 48
kBtu/h, the installation piping is connectable
in four directions.(refer to figure 1)
- When connecting in a downward direction,
knock out the knockout hole of the base pan.
(refer to figure 2)
Continuous
Preventing foreign objects from entering
(Figure3)
- Plug the pipe through-holes with putty or
insulation material(procured locally)to stop up
all gaps,as shown in the figure 3.
- Insects or small animals entering the outdoor
unit may cause a short circuit in the electrical
box.
Torque wrench
Outdoor unit
<Figure 1>
<Figure 3>
Liquid side piping
(Smaller Dia.)
Gas side piping
(Bigger Dia.)
Connecting wire
Drain hose
Backward
Connection pipe
Downward
Sideways
Forward
Putty or insulating material
(produced locally)
<Figure 2>
Knock-out
Base pan
FLARING WORK AND CONNECTION OF PIPING 21
[unit:mm]
Model
Gas Pipe
Liquid Pipe
Ø 15.88
Ø 15.88
PMBL3620
Ø 9.52
Ø 9.52
Ø 9.52
Ø 15.88
Y branch
B
A
Ⓐ To Outdoor Unit
Ⓑ To BD Unit
Ensure that the branch pipes are attached horizontally or vertically (see the diagram below.)
Horizontal
plane
Facing upwards
Within +/- 10°
A
Viewed from point A
in direction of arrow
Branch pipe should be insulated with the insulator in each kit.
Tape
(field supply)
Insulator
(included with kit)
Liquid and gas
pipe joints
Insulator for
field piping
ENGLISH
Branch
22 FLARING WORK AND CONNECTION OF PIPING
- This unit may be installed suspended from the ceiling or mounted on the wall.
- This unit may only be installed horizontally , as shown in the diagram below.(Side B is facing up)
However, it may be freely installed in any direction forward or back, and to the sides.
- Be sure to leave a 600 mm square opening for service and inspection as shown in the diagram
below, for both ceiling - suspended installation and wall-mounted installation.
- This unit "does not require drain treatment" as it uses internal foam treatment as low-pressure
piping insulation.
- Service direction is the side B and C
- The piping for the indoor unit may be led around in direction A
- The inclination of side B must be within ±5 degrees forward or back or to the sides.
[unit:mm]
Ø 9.52
(337)
A
250
(298)
Ø 19.05
245
Suspension bolt pitch.
B
Main Pipe
3050
(111)
(38)50
(150)
(36) 50 50 50
72
(56) 50 50 50
Min 400
Branch Pipe
300
60
C
Cover Control
Min 400
(Servicing space)
Min 300
Min 30
ENGLISH
Installation
Inspection opening
600
FLARING WORK AND CONNECTION OF PIPING 23
(1) Ceiling-suspended type
3 Install a hexagon nut and a flat washer
(locally-procured)to the hanging bolt as
shown in the figure in the left, and lift the
main unit to hang on the hanger metal.
4 After checking with a level that the unit is
level, tighten the hexagon nut.
* The tilt of the unit should be within ±5°
in front/back and left/right.
BD unit
Six-sided Nut
(M 10 or M 8)
(2) Wall-mountde type
15.00
Hanger metal
Flat washer
Hanging bolt
(M 10 or M 8)
Wall-mounted type
NOTE
Ceiling-suspended type
PE
!
• This unit has two different installation
types: (1) Ceiling-suspended type and
(2) wall-mounted type.
• Choose the proper installation pattern
according to the location of installation.
• The installation location for printed
wiring board can be changed.
Follow the procedure specified in the
"CONNECTING THE WIRING" section to
change the location.
PE
Screws(M5)
(locally procude)
Procedure
1 Fix the furnished hanger metal with two
screws. (3 locations in total).
2 After checking with a level that the unit is level,
fix the unit with the furnished wood screws.
* The tilt of the unit should be within ±5° in
front/back and left/right.
* Block up the parts of hanger holes (2 places)
by using insulation PE after installing the
hanger.
!
Procedure
1 Fix the furnished hanger metal with two
screws.(4 locations in total).
2 Using an insert-hole-in- anchor, hang the
hanging bolt.
CAUTION
• Once a screw-hole on the main unit has
had a screw hammered in, make sure
to either hammer it again or cover it
with alumium tape. (This is to prevent
condensation)
• Be sure to install the unit with the
ceiling-side up.
• Do not install near bedrooms. the
sound of refrigerant flowing through the
piping may sometimes be audible.
ENGLISH
(
Installation
of The Main Unit
24 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
Main power source
Provide a circuit breaker between power source
and the unit as shown below.
Air
Conditioner
!
Circuit Breaker
Use a circuit breaker
or time delay fuse.
CAUTION
The power cord connected to the outdoor unit should be complied with the following
specifications (Cable type approved by HAR or SAA).
This equipment shall be provided with a cable set complying with
the national regulation.
GN
(mm2)
/Y
L
Capacity (kBtu/h)
18
26
30
36
40
48
54
NORMAL CROSS SECTIONAL AREA
2.5
2.5
2.5
2.5
3.5
3.5
3.5
Cable Type
H07RN-F
The power connecting cable connected to the indoor and outdoor unit
should be complied with the following specifications (This equipment
shall be provided with a cord set complying with the national
regulation).
20
mm
ø7.5 mm
ENGLISH
CONNECTING THE CABLE BETWEEN INDOOR
UNIT AND OUTDOOR UNIT
GN
/YL
20
mm
NORMAL
CROSS-SECTIONAL
AREA 0.75 mm2
H07RN-F
CONNECTING THE CABLE BETWEEN INDOOR UNIT AND OUTDOOR UNIT 25
ENGLISH
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.
2 Secure the cable onto the control board
with the holder (clamper).
3 Refix the cover control to the original
position with the screw.
4 Use a recongnized circuit breaker between
the power source and the unit. A
disconnection device to adequately
disconnect all supply lines must be fitted.
Outdoor unit
Terminal block
Over 15 mm
Holder for
power supply
cord
Cover control
Power cord
Connecting cable
Loosen terminal screw
1 Ø Models
Capacity (kBtu/h)
18 26 30 36 40 48 54
Circuit Breaker (A)
15 20 25 25 30 30 30
Terminal block
!
CAUTION
After the confirmation of the above conditions, prepare the wiring as follows.
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
voltage 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.
26 CONNECTING THE CABLE BETWEEN INDOOR UNIT AND OUTDOOR UNIT
ENGLISH
Precautions when laying power wiring
Use round pressure terminals for connections to the power terminal block.
Round pressure terminal
Power wire
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.
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.
- 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.
CONNECTING THE CABLE BETWEEN INDOOR UNIT AND OUTDOOR UNIT 27
- Connect refrigerant pipes and connection
wires to the appropriate ports maked with
matching alphabets (A, B and C) on this unit.
- Follow the instructions on the wiring
nameplate to connect the connection wires
of indoor/outdoor units to terminal board
numbers.(1, 2 and 3) Always fix each ground
wire separately with a ground screw.(See
the figure below.)
- After completing the wiring, fix the outer
coating of wires securely with wire clamps.
The wire clamp on indoor unit side is
furnished. Follow the procedure below to
install.
- Refer to the circuit diagram on the control
cover inside outdoor unit.
!
NOTE
1 Remove the control cover. Loosen the two
screws, and slide the cover in the direction
of the arrow.
2 Perform wiring with reference the wiring
diagram on a control cover of outdoor unit.
Allow 300 mm for the pulling-out section
of harness. Fix the wires completely with
wire clamps(4 locations).
The terminal board numbers are arranged
from top to bottom in order of 1, 2 and 3.
In Case of 3 rooms
ROOM A
ROOM B
ROOM C
3 Put in the cover in the direction of the
A
B
C
CN-PWR
Connection wire for
indoor units
(H05VV, 4 wires, 0.75 mm)
!
Connection wire
for outdoor units
(H05RV, 4 wires, 1.2 mm)
WARNING
Do not use tapped wires, stand wires,
extensioncords, or starbust connections,
as they may cause overtheating, electrical
shock, or fire.
arrow then tighten the screws.
ENGLISH
Connection of Wiring
28 CHECKING THE DRAINAGE AND FORMING THE PIPINGS
ENGLISH
CHECKING THE DRAINAGE AND FORMING
THE PIPINGS
Checking the Drainage
2 Do not make drain piping.
To check the drainage.
1 Pour a glass of water on the evaporator.
2 Ensure the water flows through the drain
Do not raise
hose of the indoor unit without any
leakage and goes out the drain exit.
Connecting area
drain hose
Water
leakage
Accumulated
drain water
Air
Leakage
checking
Drain pan
Water
leakage
Waving
Drain
hose
Leakage
checking
Tip of drain hose
dipped in water
Water
leakage
Ditch
Less than
50 mm gap
Drain piping
1 The drain hose should point downward for
easy drain flow.
Downward slope
CHECKING THE DRAINAGE AND FORMING THE PIPINGS 29
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.
Seal a small opening
around the pipings
with gum type
sealer.
Taping
Drain hose
Pipings
Plastic
band
Connecting
cable
Power supply
cord
• Trap is required to prevent water from entering
into electrical parts.
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.
Seal a small opening
around the pipings
with gum type sealant.
Trap
Trap
ENGLISH
Forming the Piping
30 AIR PURGING AND EVACUATION
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
Lo
Hi
Pressure
gauge
Outdoor unit
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
550 P.S.I.G. with dry nitrogen gas and
close the cylinder valve when the gauge
reading reached 550 P.S.I.G. Next, test
for leaks with liquid soap.
Nitrogen gas
cylinder(in vertical
standing position)
AIR PURGING AND EVACUATION 31
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.
- 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.
Indoor unit
Manifold valve
Lo
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.
Outdoor unit
Hi
Open
Required time for evacuation when 30 gal/h
vacuum pump is used
Vacuum pump
If tubing length is less
than 10 m (33 ft)
If tubing length is
longer than 10 m (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
- 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 counter
clockwise 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.
Pressure
gauge
Open
ENGLISH
!
32 INSTALLATION PI485
ENGLISH
INSTALLATION PI485
Fix the PI485 PCB as shown in Fig.
Detailed installation method refer to PI485 Installation Manual.
26 k
26k(A4UQ28GFA0 only)
30 / 36 k
where
This label is should be applied in the location
installed.
LGAP(Sub PCB for Central Controller is
the LGAP.
Please connect the wire after installing
40 / 48 / 54 k
Screw Hole
Gateway.
n of PI485
for installatio
the space
This is y)
PI485
(Accessor
after installing
the wire
connect
Please
Gateway.
Screw Hole
802
MEZ30171
TEST RUNNING 33
ENGLISH
TEST RUNNING
- Check that all tubing and wiring have been
properly connected.
- Check that the gas and liquid side service
valves are fully open.
- For reference, the gas side pressure of
optimum condition is as below.(Cooling)
Refrigerant
Outside
ambient
TEMP.
The pressure of
the gas side
service valve.
R410A
35 °C (95 °F)
8.5~9.5 kg/cm2G
(120~135 P.S.I.G.)
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
If the actual pressure are 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.
The air conditioner is now ready for use.
NOTE
Intake temperature
• Use 2 AAA(1.5 volt) 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.
Discharge air
Bolt
Discharge
temperature
Intake temperature
Discharge air
Tubing connection
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.
Discharge
temperature
34 FUNCTION
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
Function
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)
!
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 35
SW1
40 / 48 / 54 k
DIP SW2
DIP-SW
18 k (Type B)
Forced Cooling Operation
Adding the refrigerant in winter.
Setting Procedure
1 Set the DIP Switch as follow after shutting
the power source down.
DIP-SW
26 k (Type B)
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 pressure.
- You should return the DIP Switch to
operate normally after finishing the
operation.
ENGLISH
30 / 36 k
18 / 26 k (Type A)
36 FUNCTION
ENGLISH
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 Re 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)
Example)
If the Red LED blinks twice and the Green
LED blinks 3 times, 2nd pipe is connected to
3rd room.
LED1
(Red)
2
3
1s
1s
3
• 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.
• You should return the DIP Switch to operate
normally after finishing wiring error check.
• 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
Nomal
Time
2
Setting Procedure
1 Set the DIP Switch as follow after shutting
the power source down.
LED1
(Green)
1s
CAUTION
1s
5 You should return the DIP Switch to
operate normally after finishing wiring error
check.
Step 1
2 Reset the power.
Step 2
FUNCTION 37
Model
18 k
Step1(A)
8.5
Step2(A)
7
26 k
30 k
36 k
40 k
48 k
54 k
8.5/11*
14
16
22
22
22
7.5/8.5*
11
13
18
18
18
* : A4UQ28GFA0 only
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.
!
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.
ENGLISH
Saving Power Consumption Current level.
38 FUNCTION
ENGLISH
PCB Display(18 / 26 k Model Only)
It is useful to check the cycle data without LGMV.
Operating Method
Whenever you push the Tact Switch, the cycle information will be shown as below.
h After 1 page is displayed, subsequently 2 page is displayed.
TACT-SW1
Case 1
Case 2
-
1 time
1 time
Item
Display
Example
1page
2page
Low Pressure
890 kPa
‘LP’
’ 89’
2 times
Hi Pressure
2 900 kPa
‘HP’
‘290’
3 times
Discharge Temp.
85 °C
‘DS’
’ 85’
2 times 4 times
Cond Out Temp.
-10 °C
‘CS’
‘-10’
3 times 5 times
Suction Temp.
-10 °C
‘SS’
‘-10’
4 times 6 times
ODU Air Temp.
-10 °C
‘AS’
‘-10’
5 times 7 times
Current
15 A
‘A’
‘ 15’
6 times 8 times
Voltage
230 V
‘V’
‘230’
7 times 9 times
Comp Hz
100 Hz
‘F’
‘100’
230 V
‘dc’
‘230’
8 times 10 times DC Link Voltage
Case 1 : 18k 2Room
Case 2 : Others
TACT-SW1
!
WARNING
When you push the Tact Switch, use the material non-conducting electricity.
INSTALLATION GUIDE AT THE SEASIDE 39
!
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.
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.
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.
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.
Sea wind
• Periodic ( more than once/year ) cleaning
of the dust or salt particles stuck on the
heat exchanger by using water.
Sea wind
ENGLISH
INSTALLATION GUIDE AT THE SEASIDE
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising