LG | LMNC126LRA0.AMBALMH | Installation guide | LG LMNC126LRA0.AMBALMH Installation guide

LG LMNC126LRA0.AMBALMH Installation guide
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LG Multi Type
Air Conditioner
INSTALLATION MANUAL
IMPORTANT
• Please read this installation manual completely before
installing the product.
• When the power cord is damaged, replacement work shall
be performed by authorized personnel only.
• Installation work must be performed in accordance with
the national wiring standards by authorized personnel
only.
ENGLISH
LG
Multi Type Air Conditioner Installation Manual
TABLE OF CONTENTS
Installation Requirements
Required Tools
Installation Parts Provided ........................................3
Safety Precautions ......................................................4
Installation of Indoor, Outdoor Unit...........................6
❏ Level gauge
❏ Screw driver
❏ Electric drill
❏ Hole core drill (ø50mm)
❏ Horizontal meter
Flaring work and connection of piping...................11
❏ Flaring tool set
❏ Specified torque wrenches
1.8kg.m, 4.2kg.m, 5.5kg.m, 6.6kg.m
(different depending on model No.)
❏ Spanner .................Half union
Connecting the Cable between Indoor Unit and
Outdoor Unit ..............................................................15
Checking the Drainage, Forming the Pipings
and Long pipe Setting ..............................................17
❏ A glass of water
❏ Screw driver
Air Purging and Evacuation .....................................19
❏ Hexagonal wrench(4mm)
❏ Gas-leak detector
❏ Vacuum pump
❏ Gauge manifold
Panel Front Assembly ..............................................21
Test running...............................................................22
Combination indoor units ........................................23
2 Multi Type Air Conditioner
❏ Owner's manual
❏ Thermometer
❏ Holder Remote Control
Installation Parts Provided
Installation Parts Provided
Installation plate
Type "A" screws and plastic anchors
Type "B" screws
Holder Remote Control
Air Outlet
more than
25cm
more than
25cm
Control cover
more than
90cm
Installation Manual 3
ENGLISH
Standard Type
Safety Precautions
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions
must be followed.
■ Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness
is classified by the following indications.
WARNING
This symbol indicates the possibility of death or serious injury.
CAUTION
This symbol indicates the possibility of injury or damage.
■ Meanings of symbols used in this manual are as shown below.
Be sure not to do.
Be sure to follow the instruction.
WARNING
Do not disassemble or repair the product.
• Contact your dealer or service center.
Do not handle the flamable gas or explosive
materials near the product.
• Otherwise, it may cause fire or failure of
product.
Do not install the product on an defected
installation stand.
• Otherwise, It may cause injury or accident.
For installation, always contact the dealer or
service center.
• Otherwise, it may cause fire, electric shock,
explosion or injury."
For electric work, contact the dealer or
service center.
• Otherwise, It will cause fire or electric shock.
4 Multi Type Air Conditioner
Always earth the product.
• It will cause fire or electric shock.
Do not install where flamable gas could
leak.
• Otherwise, it may cause esplosion or fire.
Be cautious when unpack and install the
product.
• Sharp edges could cause injury.
Do not install the product on an defected
installation stand.
• Otherwise, It may cause injury or accident
Do not use damaged power cable.
• It will cause fire or electric shock.
Safety Precautions
Always intstall an circuit breaker and main
breaker.
If strange sound, smell or smoke come from
product, turn the breaker off or disconnect
the power supply cable.
• Otherwise, it may cause electric shock or fire.
Cover the electric part.
• Otherwise, it may cause fire or electric shock.
Do not put the heater, etc. near the power
cable.
• Otherwise, it may cause fire and electric shock.
Do not turn the breaker on/off or
connect/disconnect the power supply plug
during operation.
• Otherwise, it may cause fire or electric shock.
Do not open the suction inlet of the product
during operation.
• Otherwise, it may cause electric shock or
failure.
• Otherwise, it may cause fire or electric shock.
Do not touch the metal parts of the product
when removing the air filter.
• Otherwise, it may cause personal injury.
Do not step or put anyting on the product.
• Otherwise, it may cause personal injury and
failure of product.
CAUTION
Always inspect gas leakage after
installation and repair of product.
• Otherwise, it may cause failure of product.
Keep the level even in installing the
product.
• Otherwise, it may cause vibration or water
leakage.
Install the drain hose to ensure that drain
can be securely done.
• Otherwise, it may cause water leakage.
Do not install the product where the noise
or hot wind from the outdoor unit could
give any casualty to the neighborhood
• Otherwise, it may cause dispute with the
neighborhoods.
Installation Manual 5
ENGLISH
• No installation may cause fire and electric
shock.
Do not touch(operate) product with wet
hands.
Installation of Indoor, Outdoor Unit
Installation of Indoor, Outdoor Unit
Read completely, then follow step by step.
Select the best location
Indoor unit
1. Do not have any heat or steam near the unit.
More than
5cm
More than 5cm
2. Select a place where there are no obstacles
in front of the unit.
3. Make sure that condensation drainage can be
conveniently routed away.
More than 2.3m
More than 5cm
More than
5cm
More than 10cm
4. Do not install near a doorway.
5. Ensure the spaces indicated by arrows from
the wall, ceiling, fence or other obstacles.
More than 5cm
More than 2.3m
6. 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 10cm
More than 50cm
More than 50cm
More than 2m
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.
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.
6 Multi Type Air Conditioner
more than
25cm
more than
25cm
more than
90cm
Installation of Indoor, Outdoor Unit
Piping length and elevation
Capacity (Btu/h)
100K
With
Distributor
None
Distributor
(m)
Total Length
Max Main Pipe Total Branch
Length (A/B) Pipe Length
Max Branch Max Elevation
In - In
Pipe Length
(h1/h2)
Elevation (h3)
60
A = 30
30
15
25
10
50
B = 50
-
-
30
10
Distributor
Branch Pipe
A
h3
B
h1
h2
Main Pipe
Distributor Type
CAUTION: Capacity is based on standard length and maximum allowance
length is on the basis of reliability. Oil trap should be installed every 5~7
meters.
Installation Manual 7
ENGLISH
Distributor Type
Installation of Indoor, Outdoor Unit
How to fix installation plate
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.
Installation Plate
Type "A" screw
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.
(SR, ST, SU)
C
B
D
Installation plate
Ø70mm
Left rear piping
CHASSIS (Grade)
A
Ø70mm
Right rear piping
Distance (mm)
A
B
SR(12k)
0
ST(18k~24k)
SU(12k)
8 Multi Type Air Conditioner
C
D
40
20
40
105
0
210
0
92
44
67
44
Installation of Indoor, Outdoor Unit
Preparing work for Installation (Artcool Type Only)
1. First, push the front panel backward and lift it up to remove the two screws.
2. The moment of lifting the both lower parts of panel front, you can hear sound this panel came
out, In this time panel front is separated
3. After pull down this panel a bit, and separate connecting wire with product.
Panel Front
Connector
Remove cover pipe and cover side
1. Remove two screws(for fixing cover pipe)
2. Pull up the cover side of desired connecting
direction, then cover side is separated.
3. In case of connecting direction is left or right,
path through the hole of cover side.
CAUTION: After removing the pipe
hole, cut the burr for safety.
NOTICE
Pipe hole
When connecting pipe path through rear
wall, don’t remove the hole.
Drain hose junction
1. Remove the rubber stopple of desired
direction of drainage.
2. As the following picture, Insert drain hose in
the handle of drain pan, and join drain hose
and connecting hose.
Adhesive
Only one
desiring direction
Connecting
part
Drain
hose
rubber cap
Installation Manual 9
ENGLISH
Open panel front
Installation of Indoor, Outdoor Unit
Sticking the installation guide map and fixing Indoor unit (Artcool Type Only)
Put an Installation Guide Map on the desired surface.
Adjust level even by level guage and fix to installation
for reference on the well.
INSTALLATION GUIDE MAP
Make a hole with diameter of 6mm and depth of
30-35mm when piercing a screw point.
IN
ST
AII
AT
IO
N
IN
ST
AL
LA
TIO
N
Horizontality
GU
ID
EM
AP
Drill the piercing part for connecting pipe as diameter
50mm. (In case of piercing rear surface)
GU
ID
EM
AP
Refer to No. 5 on this page when making a hole in the wall.
Drive the fore plastic anchors into drilled points.
IN
ST
AL
LA
TIO
N
First, Drive the two points of the upper parts by screws
(Leave 10mm for hanging product)
GU
ID
EM
AP
mm
10
Plastic anchors
Hang the hole of product at the upper screws.
(In this time, Remove the map)
(Falling attention)
IN
ST
AL
LA
TIO
N
GU
Drive the lower parts after facing the hole of product
with plastic anchors, and fix completely the upper
screws.
INS
TAL
LAT
ION
GUID
EM
AP
Plastic anchors
Hanger hole
(Rear side of
product)
In case of nothing wrong in the matter, connect the pipe
and the wire. (Installation manual reference)
Check the fixed product with light power.
Drill a hole in the wall
• Drill the piping hole with a ø70mm hole core drill. Drill the piping hole at either the right or the
left with the hole slightly slanted to the outdoor side.
Standard / Artcool Deluxe type
Artcool type
WALL
10 Multi Type Air Conditioner
Indoor
Outdoor
5-7mm
5-7mm
Outdoor
(3/16"~5/16")
Indoor
(0.2"~0.3")
WALL
Flaring Work and Connection of Piping
Flaring Work and Connection of Piping
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.
1. Use the piping kit accessory or the pipes
purchased locally.
2. Measure the distance between the indoor and
the outdoor unit.
Copper
pipe
Slanted Uneven Rough
90°
3. Cut the pipes a little longer than measured
distance.
4. Cut the cable 1.5m longer than the pipe length.
Burrs removal
Pipe
1. Completely remove all burrs from the cut cross
section of pipe/tube.
Reamer
2. Put the end of the copper tube/pipe in a
downward direction as you remove burrs in
order to avoid dropping burrs into the tubing.
Point down
Putting nut on
Flare nut
• Remove flare nuts attached to indoor and
outdoor unit, then put them on pipe/tube having
completed burr removal.
(not possible to put them on after flaring work)
Copper tube
Flaring work
Outside diameter
mm
inch
Ø6.35
1/4
Ø9.52
3/8
Ø12.7
1/2
Ø15.88
5/8
Ø19.05
3/4
A
mm
0~0.5
0~0.5
0~0.5
0~1.0
1.0~1.3
Bar
Handle
"A"
• Carry out flaring work using flaring tool as shown
below.
• Firmly hold copper pipe in a die in the dimension
shown in the table above.
Bar
Yoke
Cone
Copper pipe
Clamp handle
Red arrow mark
Installation Manual 11
ENGLISH
Flaring work
Flaring Work and Connection of Piping
Check
1. Compare the flared work with figure below.
Smooth all round
Inside is shiny without scratches
2. If flare is noted to be defective, cut off the
flared section and do flaring work again.
= 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
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.
Loop
Loop
Connecting
cable
Drain hose
Gas side
piping
Liquid side
piping
Tape
Connecting
pipe
Connecting
cable
Liquid side piping
Drain hose
Connecting cable
Gas side piping
Drain hose
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.
12 Multi Type Air Conditioner
Flaring Work and Connection of Piping
Indoor unit installation
Connecting
cable
Drain hose
Connecting the pipings to the in door
unit and drain hose to drain pipe
1. Align the center of the pipings and sufficiently
tighten the flare nut by hand.
Indoor unit tubing
Flare nut
Pipings
2. Tighten the flare nut with a wrench.
Outside diameter
mm
inch
Ø6.35
1/4
Ø9.52
3/8
Ø12.7
1/2
Ø15.88
5/8
Ø19.05
3/4
Torque
kg.m
1.8
4.2
5.5
6.6
6.6
3. When extending the drain hose at the indoor
unit, install the drain pipe.
Spanner (fixed)
Flare nut
Torque wrench
Connection pipe
Indoor unit tubing
Drain pipe
Indoor unit drain hose
Adhesive
Wrap the insulation material around
the connecting portion.
Vinyl tape(narrow)
Plastic bands Insulation material
1. Overlap the connection pipe insulation
material and the indoor unit pipe insulation
material. Bind them together with vinyl tape
so that there is no gap.
2. Wrap the area which accommodates the rear
piping housing section with vinyl tape.
NOTICE
: Recommended Insulation material
Meterial: FOAM PE
Thickness: 10mm
Density: less than 0.032 ±0.005(g/cm3)
Thermal conductivity: less than 0.03
(kcal/m.hr.°C)
Indoor
unit pipe
Connection
pipe
Vinyl tape
Wrap with vinyl tape
(wide)
Connecting cable
Pipe
Vinyl tape(narrow)
Installation Manual 13
ENGLISH
1. 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).
Flaring Work and Connection of Piping
3. 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.
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
Bad case
• Press on the upper side of clamp and unfold
the tubing to downward slowly.
• 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.
Short tube
Connector
The provided elbow is possible for using in right
and left.
Finally, tighten the flare nut with torque wrench
until the wrench clicks.
Elbow
• When tightening the flare nut with torque
wrench ensure the direction for tightening
follows the arrow on the wrench.
Outside diameter
mm
inch
Ø6.35
1/4
Ø9.52
3/8
Ø12.7
1/2
Ø15.88
5/8
Ø19.05
3/4
NOTICE
Torque
kg.m
1.8
4.2
5.5
6.6
6.6
: When installing 48K Btu/h Indoor Unit,
use the short tube connector.
(not branch distributor type)
14 Multi Type Air Conditioner
Outdoor unit
Connecting the Cable between Indoor Unit and Outdoor Unit
Connecting the Cable between Indoor Unit and Outdoor 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
Circuit Breaker
Use a circuit breaker
or time delay fuse.
Air
Conditioner
CAUTION: The power cord connected to the outdoor unit should be complied
with the following specifications (Cable type approved by HAR or SAA).
(mm2)
Grade
NORMAL CROSS
SECTIONAL AREA
60K/72K/100K
5.5
Cable Type
GN
H05RN-F
/YL
20
mm
ø7.5mm
The power connecting cable connected to the indoor and outdoor unit
should be complied with the following specifications (Type "B" approved by
HAR or SAA).
GN
/YL
20
mm
NORMAL
CROSS-SECTIONAL
AREA 0.75mm2
H05VV-F
Installation Manual 15
ENGLISH
Connect the cable to the Indoor unit.
Connecting the Cable between Indoor Unit and Outdoor Unit
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.
Circuit
Breaker
(A)
Outdoor unit
Loosen terminal screw
Grade (Btu/h)
60K
72K
100K
25
30
30
R
S
T
N
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.
16 Multi Type Air Conditioner
Checking the Drainage, Forming the Pipings and Long Pipe Setting
Checking the Drainage, Forming the Pipings and Long Pipe Setting
ENGLISH
Checking the drainage
To check the drainage.
1. Pour a glass of water on the evaporator.
2. Ensure the water flows through the drain
hose of the indoor unit without any leakage
and goes out the drain exit.
Drain piping
1. The drain hose should point downward for
easy drain flow.
Downward slope
2. Do not make drain piping.
Accumulated
drain water
Air
Do not raise
Water
leakage
Water
leakage
Waving
Tip of drain hose
dipped in water
Water
leakage
Less than
50mm gap
Ditch
Installation Manual 17
Checking the Drainage, Forming the Pipings and Long Pipe Setting
Forming the piping
Form the piping by wrapping the
connecting portion of the indoor
unit with insulation material and
secure it with two kinds of vinyl
tape.
Seal a small
opening around
the pipings with
gum type sealer.
Plastic
band
• 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.
Pipings
Connecting
cable
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.
18 Multi Type Air Conditioner
Taping
Drain hose
Power supply
cord
• Trap is required to prevent water from entering
into electrical parts.
Seal a small opening
around the pipings
with gum type sealer.
Trap
Trap
Air Purging and Evacuation
Air Purging and Evacuation
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.
Leakage test
1. 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.
2. After the system is found to be free of leaks,
relieve the nitrogen pressure by loosening the
charge hose connector at the nitrogen
cylinder. When the system pressure is
reduced to normal, disconnect the hose from
the cylinder.
• 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 150
P.S.I.G. with dry nitrogen gas and close the
cylinder valve when the gauge reading
reached 150 P.S.I.G. Next, test for leaks with
liquid soap.
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.
Indoor unit
Outdoor unit
Manifold valve
Pressure
gauge
Lo
Hi
Charge hose
Nitrogen gas
cylinder(in vertical
standing position)
Installation Manual 19
ENGLISH
Air and moisture remaining in the refrigerant system have undesirable effects as indicated below.
1. Pressure in the system rises.
2. Operating current rises.
3. Cooling(or heating) efficiency drops.
4. Moisture in the refrigerant circuit may freeze and block capillary tubing.
5. Water may lead to corrosion of parts in the refrigeration system.
Therefore, the indoor/outdoor unit and connecting tube must be checked for leak tight, and
vacuumed to remove incondensible gas and moisture in the system.
Air Purging and Evacuation
Soap water method
1. Remove the caps from the 2-way and 3-way valves.
2. Remove the service-port cap from the 3-way valve.
3. To open the 2-way valve turn the valve stem
counterclockwise approximately 90°, wait for about
2~3 sec, and close it.
4. Apply a soap water or a liquid neutral detergent on
the indoor unit connection or outdoor unit
connections by a soft brush to check for leakage of
the connecting points of the piping.
5. If bubbles come out, the pipes have leakage
Cap
Hexagonal
wrench
Hexagonal
wrench
Evacuation
1. Connect the charge hose end described in the
preceding steps to the vacuum pump to
evacuate the tubing and indoor unit.
Confirm the "Lo" knob of the manifold valve is
open. Then, run the vacuum pump.
The operation time for evacuation varies with
tubing length and capacity of the pump. The
following table shows the time required for
evacuation.
Required time for evacuation when 30 gal/h vacuum
pump is used
If tubing length is less
than 10m (33 ft)
10 min. or more
Indoor unit
Outdoor unit
If tubing length is longer
than 10m (33 ft)
15 min. or more
2. When the desired vacuum is reached, close the
"Lo" knob of the manifold valve and stop the
vacuum pump.
Finishing the job
1. With a service valve wrench, turn the valve stem of
liquid side valve counter-clockwise to fully open the
valve.
2. Turn the valve stem of gas side valve counterclockwise to fully open the valve.
3. Loosen the charge hose connected to the gas side
service port slightly to release the pressure, then
remove the hose.
4. Replace the flare nut and its bonnet on the gas side
service port and fasten the flare nut securely with
an adjustable wrench. This process is very
important to prevent leakage from the system.
5. Replace the valve caps at both gas and liquid side
service valves and fasten them tight.
This completes air purging with a vacuum pump.
The air conditioner is now ready to test run.
20 Multi Type Air Conditioner
Manifold valve
Pressure
gauge
Lo
Hi
Open
Vacuum pump
Close
Panel Front Assembly
Panel Front Assembly (Artcool type Only)
ENGLISH
1. First, Check the side cover
assembly exactly, Fix power cord
in the bottom groove of cover side
left.
2. Assemble connecting lead wire
with controller and first fix the
upper part of panel front, then
match the lower part of panel front
Panel Front
Connector
3. Suspend hook of front panel in the
groove after contract lower of 2
screws.
Installation Manual 21
Test Running
Test Running
1. Check that all tubing and wiring have been properly connected.
2. 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.
NOTICE :
• 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.
Evaluation of the performance
Operate unit for 15~20 minutes, then check the
system refrigerant charge:
Intake temperature
Discharge air
1. Measure the pressure of the gas side service
valve.
2. Measure the temperature of the intake and
discharge of air.
Discharge
temperature
3. Ensure the difference between the intake
temperature and the discharge is more than
8°C
4. For reference, the gas side pressure of
optimum condition is as below.(Cooling)
Refrigerant Outside ambient
TEMP.
R-22
35°C (95°F)
R-410A
35°C (95°F)
Intake temperature
Discharge air
The pressure of the gas side
service valve.
4~5kg/cm2G(56.8~71.0 P.S.I.G.)
Discharge
temperature
8.5~9.5kg/cm2G(120~135 P.S.I.G.)
Intake temperature
NOTICE
: 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.
22 Multi Type Air Conditioner
Discharge air
Discharge
temperature
Combination indoor units
Combination indoor units
ENGLISH
The indoor units connectable to the outdoor unit are shown below.
Model Name
Chassis
Name
Type
Capacity, Btu/h
12K
18K
24K
30K
36K
48K
SR
Standard Type
ST
Artcool Deluxe Type
SU
Artcool Type
SP1
Ceiling Mounted
Cassete Type 1Way
TC
TE
Ceiling Mounted
Cassete Type 4Way
*
TF
*
TD
BH
Ceiling concealed
Duct (High Static)
*
BG
*
BE
Ceiling concealed
Duct (Low Static)
Ceiling concealed
Duct (Built In)
BT
*
*
BT1
BP
*
VE
*
Convertible Type
VB
NOTICE
*
*
: 1. The total capacity(in Btu/h unit) of connected indoor unit models represents the total sum of the figures
expressed in the indoor model name.
2. Combinations in which the total capacity of the connected indoor units exceeds the capacity of the
outdoor unit will reduce the capacity of each indoor unit below the rated capacity during simultaneous
operation. Therefore, if circumstances allows, combine indoor units within the capacity of the outdoor unit
*
3. " " is under developing by 2005
Installation Manual 23
P/No.: 3828A20403Q
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