Daikin FTKN18NMVJU Installation Manual

English
INSTALLATION MANUAL
Français
DAIKIN ROOM AIR CONDITIONER
Installation manual
Manuel dinstallation
Manual de instalación
MODELS
FTX09NMVJU
FTX12NMVJU
FTX15NMVJU
FTX18NMVJU
FTX24NMVJU
FTXN09NMVJU
FTXN12NMVJU
FTXN18NMVJU
FTXN24NMVJU
FTK09NMVJU
FTK12NMVJU
FTK18NMVJU
FTK24NMVJU
FTKN09NMVJU
FTKN12NMVJU
FTKN18NMVJU
FTKN24NMVJU
Español
R410A Split Series
Contents
Safety Considerations ..................................... 1
Accessories ...................................................... 3
Refrigerant Piping Work .................................. 9
1. Flaring the pipe end...................................................... 9
2. Refrigerant piping......................................................... 9
Choosing an Installation Site ......................... 3
Installation Tips ................................................ 10
1. Indoor unit.................................................................... 3
1. Removing and installing the front panel....................... 10
2. Wireless remote controller............................................ 3
2. Removing and installing the front grille........................ 11
Indoor Unit Installation Diagram .................... 4
3. How to set the different addresses............................... 11
Trial Operation and Testing ............................. 12
Indoor Unit Installation .................................... 5
1. Installing the mounting plate......................................... 5
1. Trial operation and testing............................................ 12
2. Test items..................................................................... 12
2. Drilling a wall hole and installing wall embedded pipe........... 6
3. Installing the indoor unit............................................... 6
4. Wiring........................................................................... 8
5. Drain piping.................................................................. 8
Safety Considerations
Read these Safety Considerations for Installation carefully
before installing an air conditioner or heat pump. After completing
the installation, make sure that the unit operates properly during
the startup operation.
Instruct the user on how to operate and maintain the unit.
Inform users that they should store this installation manual with
the operation manual for future reference.
Always use a licensed installer or contractor to install this product.
Improper installation can result in water or refrigerant leakage,
electric shock, fire, or explosion.
Meanings of DANGER, WARNING, CAUTION, and NOTE
Symbols:
DANGER ����������� Indicates an imminently hazardous
situation which, if not avoided, will
result in death or serious injury.
Indicates a potentially hazardous
���������
WARNING
situation which, if not avoided, could
result in death or serious injury.
Indicates a potentially hazardous
����������
CAUTION
situation which, if not avoided, may
result in minor or moderate injury.
It may also be used to alert against
unsafe practices.
NOTE ���������������� Indicates situations that may result
in equipment or property-damage
accidents only.
DANGER
• Refrigerant gas is heavier than air and replaces oxygen.
A massive leak can lead to oxygen depletion, especially
in basements, and an asphyxiation hazard could occur
leading to serious injury or death.
• Do not ground units to water pipes, gas pipes, telephone
wires, or lightning rods as incomplete grounding can cause
a severe shock hazard resulting in severe injury or death.
Additionally, grounding to gas pipes could cause a gas leak
and potential explosion causing severe injury or death.
1
• If refrigerant gas leaks during installation, ventilate the
area immediately. Refrigerant gas may produce toxic gas
if it comes into contact with fire. Exposure to this gas could
cause severe injury or death.
• After completing the installation work, check that the
refrigerant gas does not leak throughout the system.
• Do not install unit in an area where flammable materials
are present due to risk of explosions that can cause
serious injury or death.
• Safely dispose all packing and transportation materials
in accordance with federal/state/local laws or ordinances.
Packing materials such as nails and other metal or
wood parts, including plastic packing materials used for
transportation may cause injuries or death by suffocation.
WARNING
• Only qualified personnel must carry out the installation
work. Installation must be done in accordance with this
installation manual. Improper installation may result in
water leakage, electric shock, or fire.
• When installing the unit in a small room, take measures
to keep the refrigerant concentration from exceeding
allowable safety limits. Excessive refrigerant leaks, in the
event of an accident in a closed ambient space, can lead
to oxygen deficiency.
• Use only specified accessories and parts for installation
work. Failure to use specified parts may result in water
leakage, electric shock, fire, or the unit falling.
• Install the air conditioner or heat pump on a foundation
strong enough that it can withstand the weight of the unit.
A foundation of insufficient strength may result in the unit
falling and causing injuries.
• Take into account strong winds, typhoons, or earthquakes
when installing. Improper installation may result in the unit
falling and causing accidents.
■English
• Make sure that all wiring is secured, that specified wires
are used, and that no external forces act on the terminal
connections or wires. Improper connections or installation
may result in fire.
• When wiring, position the wires so that the electrical
wiring box cover can be securely fastened. Improper
positioning of the electrical wiring box cover may result in
electric shock, fire, or the terminals overheating.
• Before touching electrical parts, turn off the unit.
• It is recommended to install a ground fault circuit
interrupter if one is not already available. This helps
prevent electric shock or fire.
• Securely fasten the outdoor unit terminal cover (panel). If the
terminal cover/panel is not installed properly, dust or water
may enter the outdoor unit causing fire or electric shock.
• When installing or relocating the system, keep the refrigerant
circuit free from substances other than the specified
refrigerant (R410A) such as air. Any presence of air or other
foreign substance in the refrigerant circuit can cause an
abnormal pressure rise or rupture, resulting in injury.
• Do not change the setting of the protection devices. If the
pressure switch, thermal switch, or other protection device
is shorted and operated forcibly, or parts other than those
specified by Daikin are used, fire or explosion may occur.
CAUTION
• Do not touch the switch with wet fingers. Touching a switch
with wet fingers can cause electric shock.
• Do not allow children to play on or around the unit to
prevent injury.
• The heat exchanger fins are sharp enough to cut. To avoid
injury wear gloves or cover the fins while working around
them.
• Do not touch the refrigerant pipes during and immediately
after operation as the refrigerant pipes may be hot or
cold, depending on the condition of the refrigerant flowing
through the refrigerant piping, compressor, and other
refrigerant cycle parts. Your hands may suffer burns or
frostbite if you touch the refrigerant pipes. To avoid injury,
give the pipes time to return to normal temperature or, if
you must touch them, be sure to wear proper gloves.
• Install drain piping to proper drainage. Improper drain
piping may result in water leakage and property damage.
• Insulate piping to prevent condensation.
• Be careful when transporting the product.
• Do not turn off the power immediately after stopping
operation. Always wait for at least 5 minutes before turning
off the power. Otherwise, water leakage may occur.
• Do not use a charging cylinder. Using a charging cylinder
may cause the refrigerant to deteriorate.
• Refrigerant R410A in the system must be kept clean, dry,
and tight.
(a) Clean and Dry -- Foreign materials (including mineral
oils such as SUNISO oil or moisture) should be
prevented from getting into the system.
■English
(b) Tight -- R410A does not contain any chlorine, does not
destroy the ozone layer, and does not reduce the earth’s
protection again harmful ultraviolet radiation. R410A
can contribute to the greenhouse effect if it is released.
Therefore take proper measures to check for the tightness
of the refrigerant piping installation. Read the chapter
Refrigerant Piping Work and follow the procedures.
• Since R410A is a blend, the required additional refrigerant
must be charged in its liquid state. If the refrigerant is
charged in a state of gas, its composition can change and
the system will not work properly.
• The indoor unit is for R410A. See the catalog for indoor
models that can be connected. Normal operation is not
possible when connected to other units.
• Remote controller (wireless kit) transmitting distance can be
shorter than expected in rooms with electronic fluorescent
lamps (inverter or rapid start types). Install the indoor unit
far away from fluorescent lamps as much as possible.
• Indoor units are for indoor installation only. Outdoor units can be
installed either outdoors or indoors. This unit is for indoor use.
• Do not install the air conditioner or heat pump in the
following locations:
(a) Where a mineral oil mist or oil spray or vapor is
produced, for example, in a kitchen.
Plastic parts may deteriorate and fall off or result in
water leakage.
(b) Where corrosive gas, such as sulfurous acid gas, is
produced.
Corroding copper pipes or soldered parts may result in
refrigerant leakage.
(c) Near machinery emitting electromagnetic waves.
Electromagnetic waves may disturb the operation of
the control system and cause the unit to malfunction.
(d) Where flammable gas may leak, where there is carbon
fiber, or ignitable dust suspension in the air, or where
volatile flammables such as thinner or gasoline are
handled. Operating the unit in such conditions can
cause a fire.
• Take adequate measures to prevent the outdoor unit
from being used as a shelter by small animals. Small
animals making contact with electrical parts can cause
malfunctions, smoke, or fire. Instruct the user to keep the
area around the unit clean.
NOTE
• Install the power supply and inter-unit wires for the indoor
and outdoor units at least 3.5ft away from televisions or
radios to prevent image interference or noise. Depending
on the radio waves, a distance of 3.5ft may not be
sufficient to eliminate the noise.
• Dismantling the unit, treatment of the refrigerant, oil and
additional parts must be done in accordance with the
relevant local, state, and national regulations.
• Do not use the following tools that are used with
conventional refrigerants: gauge manifold, charge hose, gas
leak detector, reverse flow check valve, refrigerant charge
base, vacuum gauge, or refrigerant recovery equipment.
• If the conventional refrigerant and refrigerator oil are
mixed in R410A, the refrigerant may deteriorate.
• This air conditioner or heat pump is an appliance that
should not be accessible to the general public.
• As design pressure is 478 psi, the wall thickness of fieldinstalled pipes should be selected in accordance with the
relevant local, state, and national regulations.
2
English
• Make sure that a separate power supply circuit is provided
for this unit and that all electrical work is carried out by
qualified personnel according to local, state, and national
regulations. An insufficient power supply capacity or
improper electrical construction may lead to electric shock
or fire.
Accessories
A
Mounting plate
1
B
Mounting plate fixing screw
3/16” × 1” (M4 × 25mm)
7
C
Titanium apatite photocatalytic
air-purifying filter *1*2
2
D
Wireless remote controller
1
E
Remote controller holder
1
F
Fixing screw for remote controller
holder 1/8” × 13/16” (M3 × 20mm)
2
G
Dry battery AAA. LR03(alkaline)
2
H
Indoor unit fixing screw
3/16” × 1/2” (M4 × 12mm)
2
J
Insulation tape
1
K
Operation manual
1
L
Installation manual
1
M
Warranty
1
*1 Only for FTX(K)09/12/15/18/24*
*2 09/12 class: without frame
15/18/24 class: with frame
Choosing an Installation Site
Before choosing the installation site, obtain user approval.
1.Indoor unit
The indoor unit should be positioned in a place where:
1) the restrictions on the installation requirements specified in “Indoor Unit Installation Diagram” on page 4 are met,
2) both the air inlet and air outlet are unobstructed,
3) the unit is not exposed to direct sunlight,
4) the unit is away from sources of heat or steam,
5) there is no source of machine oil vapour (this may shorten the indoor unit service life),
6) cool/warm air is circulated throughout the room,
7) the unit is away from electronic ignition type fluorescent lamps (inverter or rapid start type) as they may affect the remote
controller range,
8) the unit is at least 3.3ft (1m) away from any television or radio set (the unit may cause interference with the picture or
sound),
9) no laundry equipment is nearby.
2.Wireless remote controller
Turn on all the fluorescent lamps in the room, if any, and find a location where the remote controller signals are properly
received by the indoor unit (within 23ft (7m)).
3
■English
How to attach the indoor unit
Hook the hooks of the bottom frame
to the A mounting plate.
If the hooks are difficult to hook,
remove the front grille.
A Mounting plate
How to remove the indoor unit
Push up the marked area (at the
lower part of the front grille) to
release the hooks. If it is difficult to Front grille
release, remove the front grille.
A Mounting
plate
Hook
Bottom frame
Mark (rear side)
The A mounting plate
should be installed on a
wall which can support the
weight of the indoor unit.
B Mounting plate
fixing screw
3/16” × 1” (M4 × 25mm)
1-3/16” (30mm) or more from ceiling
Front panel
Caulk
pipe hole
gap
with putty.
1-15/16” (50mm) or more
from walls (on both sides)
Air filters
English
Indoor Unit Installation Diagram
Screws
3/16” × 5/8” (M4 × 16mm)*
*The 15, 18 and 24-class models
have 3 screws.
Appearance of
indoor units may
differ from some
models.
(This is a 09/12
class illustration)
Cut thermal insulation
pipe to an appropriate
length and wrap it with
tape, making sure that no
gap is left in the insulation
pipe’s cut line.
Wrap the insulation pipe with
the finishing tape from bottom
to top.
Service lid
The service lid is removable.
Opening method
1) Remove the service lid screw.
2) Pull out the service lid horizontally in
the direction of the arrow.
3) Pull down.
C Titanium apatite photocatalytic
air-purifying filter (2)
(FTXN or FTKN models: Sold separately.)
09/12 class
Titanium apatite photocatalytic
air-purifying filter
Before screwing the
E remote controller
holder to the wall, make
sure that control signals
are properly received by
indoor unit.
15/18/24 class
Filter frame
Claw
Titanium apatite
photocatalytic
air-purifying filter
D Wireless remote
controller
Tab
Air filter
■English
F Fixing screw for remote
controller holder
1/8” × 13/16” (M3 × 20mm)
E Remote
controller holder
4
Indoor Unit Installation
1.
Installing the mounting plate
• The mounting plate should be installed on a wall which can support the weight of the indoor unit.
1) Temporarily secure the mounting plate to the wall, make sure that the panel is completely level, and mark the drilling
points on the wall.
2) Secure the mounting plate to the wall with screws.
Recommended mounting plate retention spots and dimensions
09/12 class
Recommended mounting plate
retention spots (7 spots in all)
Place a leveler
on these tabs.
Through-the-wall
hole φ2-9/16 (65)
1-3/4 (44.5)
6-11/16
(170)
1-7/8 (48)
1-15/16
(50)
Gas pipe end
11-1/4 (286)
30-5/16 (770)
Place the pipe port cover
in this pocket.
Drain hose position
4-5/8 (116.5)
1-3/4 (44.5)
11-1/4 (285)
4-5/8 (117)
The removed pipe
port cover can be
kept in the mounting
plate pocket.
6-11/16 (170)
1-7/8 (48)
13-1/4 (337)
Liquid pipe end
Removed pipe
port cover
Use a tape measure
as shown.
Position the end of
the tape measure at
A Mounting
plate
.
15/18/24 class
Place a leveler
on these tabs.
Recommended mounting plate
retention spots (7 spots in all)
5 (126.5)
1-7/8 (48)
6-11/16 (170)
2-3/8 (60)
Gas pipe end
16-7/16 (417)
39 (990)
5
Through-the-wall
hole φ3-1/8 (80)
1-3/4 (44.5)
1-3/4 (44.5)
11-5/8 (295)
4-5/8 (117)
6-11/16 (170)
17-1/8 (435)
Liquid pipe end
Drain hose position
2-3/8 (60)
unit: inch (mm)
■English
English
2�
Drilling a wall hole and installing wall embedded pipe
WARNING
For metal frame or metal board walls, be sure to use a wall embedded pipe and wall hole cover in the feed-through hole to
prevent possible heat, electric shock, or fire.
• Be sure to caulk the gaps around the pipes with caulking material to prevent
condensation.
1) Drill a feed-through hole with a φ2-9/16 inch (65mm) (for 09/12 class),
φ3-1/8 inch (80mm) (for 15/18/24 class) diameter through the wall at a
downward angle toward the outside.
2) Insert a wall embedded pipe into the hole.
3) Insert a wall hole cover into wall pipe.
4) After completing refrigerant piping, wiring, and drain piping, caulk the pipe
hole gap with putty.
3�
Wall embedded
pipe
Inside
(field supply)
Outside
Caulking
(field supply)
Wall hole cover
(field supply)
φ2-9/16”
09/12 class (65mm)
15/18/24
class
φ3-1/8”
(80mm)
Installing the indoor unit
In the case of bending or curing refrigerant pipes, keep the following precautions in mind.
Abnormal sound may be generated if improper work is conducted.
• Do not strongly press the refrigerant pipes onto the bottom frame.
• Do not strongly press the refrigerant pipes on the front grille, either.
3-1� Right-side, right-back, or right-bottom piping
1) Attach the drain hose to the underside of the refrigerant pipes with
adhesive vinyl tape.
2) Wrap the refrigerant pipes and drain hose together with J insulation
tape.
Right-side piping
Remove pipe port
cover here for
right-side piping.
Right-back piping
Right-bottom
piping
Remove pipe port cover
here for right-bottom piping.
3) Pass the drain hose and refrigerant pipes through the wall hole, then set
the indoor unit on the A mounting plate hooks by using the
markings
at the top of the indoor unit as a guide.
4) Open the front panel (Refer to “Installation Tips”on page 10), then open
the service lid (Refer to “Indoor Unit Installation Diagram”on page 4).
5) Pass the inter-unit wire from the outdoor unit through the feed-through
wall hole and pass to the front of indoor unit from the back. Then pull
them at front side. Bend the ends of cable tie wires upward for easier
work in advance.
6) Press the bottom frame of the indoor unit with both hands to set it on the
A mounting plate hooks. Make sure the wire leads do not catch on the
edge of the indoor unit.
■English
Bind refrigerant
pipe and drain
hose together with
J insulation tape.
A Mounting plate
Hang indoor unit on the hooks of
mounting plate.
A Mounting
plate
When stripping the
ends of inter-unit wire
in advance, bundle the wire
lead ends with tape.
Inter-unit
wire
Wire guide
6
Indoor Unit Installation
3-2.Left-side, left-back, or left-bottom piping
How to replace the drain plug and drain hose
• Replacing onto the left side
1) Remove the fixing screw of drain hose on the
right and remove the drain hose.
2) Remove the drain plug on the left side and
attach it to the right side.
3) Insert the drain hose and tighten with the
included fixing screw.
Forgetting to tighten this may cause water
leakages.
Drain hose attachment position
The drain hose is on the back of the unit.
Left side
Right side
Front side of unit
Attachment on the left side
Attachment on the right side
(factory default)
Fixing screw
Fixing screw
Drain hose
Drain hose
1) Attach the drain hose to the underside of the refrigerant
pipes with adhesive vinyl tape.
Remove pipe
port cover here
for left-side
piping.
Left-side
piping
Left-back
piping
Remove pipe port cover here for left-bottom piping.
Left-bottom piping
2) Be sure to connect the drain plug to the drain port in
place of without drain hose.
How to set the drain plug.
Do not apply lubricating oil
(refrigerant oil) to the drain
plug when inserting it.
The application of
lubrication oil to the drain
plug will deteriorate the
plug to cause drain
leakage from the plug.
p.
a
No g
Insert a hexagonal wrench (3/16 inch (4mm)).
3) Shape the refrigerant pipes along the pipe
path marking on the A mounting plate.
4) Pass the drain hose and refrigerant pipes
through the wall hole, then position the indoor
unit on the A mounting plate hooks, using the
markings at the top of the indoor unit as a
guide.
5) Pull in the inter-unit wire.
6) Connect the refrigerant pipes.
Drain
hose
Caulk this hole
with putty or
caulking material.
7) In case of pulling the drain hose through the back of the
indoor unit, wrap the refrigerant pipes and drain hose
together with J insulation tape as shown in the right
figure.
8) To confirm that the inter-unit wire does not catch by
the indoor unit, press the bottom edge of the indoor
unit with both hands until it is firmly caught by the A
mounting plate hooks. Secure the indoor unit to the A
mounting plate with the H indoor unit fixing screws
3/16” × 1/2” (M4 × 12mm).
3-3.Wall embedded piping
Follow the instructions given under left-side, left-back, or
left-bottom piping.
1) Insert the drain hose to this depth so it won’t be pulled
out of the drain pipe.
A Mounting plate
Bind with adhesive
vinyl tape.
Inter-unit wire
Drain hose
A Mounting
plate
Refrigerant
pipes
Bottom frame
H Indoor unit fixing screw
3/16” × 1/2” (M4 × 12mm)
Insert drain hose
to this depth so
it won’t be pulled
out of drain pipe.
1-15/16”
(50mm)
or more
Outer wall
7
Wrap J insulation tape around
the bent portion of the refrigerant
pipes.
Overlap at least half the width of
the tape with each turn.
Inner wall
Drain hose
Vinyl chloride
drain pipe
(VP-30)
■English
English
4�
Wiring
1) As shown in the illustration, insert the wires including the ground wire into the conduit and secure them with lock nut onto
the conduit mounting plate.
2) Strip wire ends (3/4 inch (20mm)).
3) Match wire colours with terminal numbers on the terminal block of indoor and outdoor unit and firmly secure the wires in
the corresponding terminals with screws.
4) Connect the ground wire to the corresponding terminals.
5) Pull the wires lightly to make sure they are securely connected.
6) While close the service lid, shape the wires so that the service lid fits securely, then close the service lid.
Terminal block
1
2
Firmly fix the wires with the terminal screws.
Electrical wiring box
3
Shape wires so that the
service lid fits securely.
Outdoor unit
Use AWG16 if the connection wire
length is less than 33ft (10m), or
AWG14 if it is 33ft (10m) or more.
1 23
L1 L2
Wire retainer
Use the specified wire type.
Indoor
unit
1
2
3
Back
Firmly fix the wires with
the terminal screws.
Conduit mounting plate
Conduit
Lock nut
WARNING
• Do not use tapped wires, extension cords, or starburst connections, as they may cause overheating, electric shock, or fire.
• Do not use locally purchased electrical parts inside the product. (Do not branch the power for the drain pump, etc., from the
terminal block.) Doing so may cause electric shock or fire.
• Do not connect the power wire to the indoor unit. Doing so may cause electric shock or fire.
5�
Drain piping
1) Connect the drain hose, as described on the right.
The drain hose should
be inclined downward.
No trap is permitted.
Do not put the end
of the hose in water.
φ5/8”(φ16mm)
2) Remove the air filters and pour some water into the drain pan to check the
water flows smoothly.
3) If drain hose extension or embedded drain piping is required, use appropriate
parts that match the hose front end.
Drain hose supplied
with the indoor unit
■English
Indoor unit
drain hose
φ5/8”(φ16mm)
4) When extending the drain hose, use a commercially available
extension hose with an inner diameter of 5/8 inch (16mm).
Be sure to thermally insulate the indoor section of the
extension hose.
φ5/8”(φ16mm)
Figure of hose front end
Extension drain hose
Heat insulation tube
(field supply)
8
Refrigerant Piping Work
1.
Flaring the pipe end
1) Cut the pipe end with a pipe cutter.
2) Remove burrs with the cut surface facing downward,
so that the filings do not enter the pipe.
3) Put the flare nut on the pipe.
4) Flare the pipe.
5) Check that the flaring has been done correctly.
Cut exactly at
right angles.
Set exactly at the position shown below.
Flare tool for R410A
A
Clutch-type
Die
A
0-0.020 inch
(0-0.5mm)
Remove burrs.
Flaring
Conventional flare tool
Clutch-type (Rigid-type) Wing-nut type (Imperial-type)
0.039-0.059 inch
(1.0-1.5mm)
0.059-0.079 inch
(1.5-2.0mm)
The flare's inner
surface must be
flaw-free.
Check
The pipe end must
be evenly flared in
a perfect circle.
Make sure that the
flare nut is fitted.
WARNING
•
•
•
•
•
•
2.
Do not apply mineral oil to the flare.
Prevent mineral oil from getting into the system as this would reduce the service life of the units.
Never use piping which has been used for previous installations. Only use parts which are delivered with this unit.
Never install a dryer to this R410A unit in order to guarantee its service life.
The drying material may dissolve and damage the system.
Incomplete flaring may result in refrigerant gas leakage.
Refrigerant piping
CAUTION
• Use the flare nut fixed to the main unit. (This is to prevent the flare nut from cracking as a result of deterioration over time.)
• To prevent gas leakage, apply refrigeration oil only to the inner surface of the flare. (Use refrigeration oil for R410A.)
• Use a torque wrench when tightening the flare nuts to prevent damage to the flare nuts and gas leakage.
• Align the centers of both flares and tighten the flare nuts 3 or 4 turns by hand, then tighten them fully with a spanner and a
torque wrench.
Apply oil
Do not apply refrigeration
oil to the outer surface.
Apply refrigeration
oil to the inner
surface of the flare.
Tighten
Torque wrench
Flare nut
Gas side
Spanner
Do not apply refrigeration oil to
the flare nut to avoid tightening
with excessive torque.
Piping union
Flare nut
Liquid side
2-1.Caution on piping handling
• Protect the open end of the pipe against dust and moisture.
• All pipe bends should be as gentle as possible. Use a pipe bender
for bending.
9
Piping size
Flare nut tightening torque
O.D. 3/8 inch
(9.5mm)
O.D. 1/2 inch
(12.7mm)
O.D. 5/8 inch
(15.9mm)
O.D. 1/4 inch
(6.4mm)
24-1/8 – 29-1/2ft • Ibf
(32.7-39.9N • m)
36-1/2 – 44-1/2ft • lbf
(49.5-60.3N • m)
45-5/8 – 55-5/8ft • Ibf
(61.8-75.4N • m)
10-1/2 – 12-3/4ft • lbf
(14.2-17.2 N • m)
Be sure to
place a cap.
Rain
Wall
If no flare cap is
available, cover
the flare mouth
with tape to keep
dirt and water out.
■English
English
2-2� Selection of copper and heat insulation materials
When using commercial copper pipes and fittings, observe the following:
• Insulation material: Polyethylene foam
Heat transfer rate: 0.041 to 0.052W/mK (0.024 to 0.030Btu/fth°F (0.035 to
0.045kcal/mh°C))
Be sure to use insulation that is designed for use with HVAC Systems.
• ACR Copper only.
Inter-unit wire
Gas pipe
Liquid pipe
Liquid pipe
insulation
Gas pipe
insulation
Finishing tape
Drain hose
• Be sure to insulate both the gas and liquid piping and observe the insulation
dimensions as below.
Gas side
Liquid side
Piping size
Minimum bend radius
O.D. 3/8 inch
(9.5mm)
O.D. 1/2 inch
(12.7mm)
O.D. 5/8 inch
(15.9mm)
O.D. 1/4 inch
(6.4mm)
1-3/16 inch (30mm)
or more
1-9/16 inch (40mm)
or more
1-15/16 inch (50mm)
or more
1-3/16 inch (30mm)
or more
Piping thickness
Thermal insulation size
Thermal insulation
thickness
I.D. 15/32-19/32 inch
(12-15mm)
I.D. 9/16-5/8 inch
(14-16mm)
I.D. 5/8-13/16 inch
(16-20mm)
I.D. 5/16-13/32 inch
(8-10mm)
13/32 inch
(10mm) Min.
0.031 inch (0.8mm)
(C1220T-O)
0.039 inch (1.0mm)
(C1220T-O)
0.031 inch (0.8mm)
(C1220T-O)
• Use separate thermal insulation pipes for gas and liquid refrigerant pipes.
Installation Tips
1�
Removing and installing the front panel
• Removal method
1) Place your fingers in the indentations on the main unit (one each on
the left and right sides), and open the front panel until it stops.
2) While pushing the left side front panel shaft outward, push up the
front panel and remove it. (Remove the right side front panel shaft in
the same manner.)
3) After removing both front panel shafts, pull the front panel toward
yourself and remove it.
Indentations on
the main unit
Front panel shaft
• Installation method
Align the shaft of the front panel with the grooves of grill, and push
all the way in, then close slowly. Push the center of the lower panel
surface firmly to engage the hooks.
■English
10
2�
Removing and installing the front grille
• Removal method
1) Remove the front panel to remove the air filter.
2) Remove the 2 screws from the front grille.
(The 15, 18 and 24-class models have 3 screws.)
3) In front of the
mark on the front grille, there are 3 upper hooks.
Lightly pull the front grille toward you with one hand, and push down
on the hooks with the fingers of your other hand.
 mark area
(3 locations)
Push
down.
Upper hook
When there is insufficient work space because the unit is close to ceiling
Upper hook
1) Push up.
CAUTION
• Be sure to wear protection gloves.
Place both hands under the center of the front grille, and while pushing
up, pull it toward you.
2) Pull toward you.
• Installation method
1) Install the front grille and firmly engage the upper hooks (3 locations).
2) Install 2 screws of the front grille.
(The 15, 18 and 24-class models have 3 screws.)
3) Install the air filter and then mount the front panel.
3�
How to set the different addresses
When 2 indoor units are installed in one room, the 2 wireless remote
controllers can be set for different addresses. Change the address setting
of one of the two units. When cutting the jumper be careful not to damage
any of the surrounding parts.
1) Remove the battery cover on the remote controller and cut the address
jumper.
2) Press
,
and
at the same time.
, then select , press
.
3) Press
(The indoor unit OPERATION lamp will blink for about 1 minute.)
4) Press the indoor unit ON/OFF switch while the OPERATION lamp is
blinking.
• If setting could not be carried out completely while the OPERATION
lamp was blinking, carry out the setting process once again from the
beginning.
• After setting is complete, pressing
for about 5 seconds will cause
the remote controller to return to the previous display.
11
Jumper
Jumper
EXIST
CUT
ADDRESS
1
2
OPERATION
lamp
ON/OFF
Indoor unit
ON/OFF
switch
■English
1�
English
Trial Operation and Testing
Trial operation and testing
• Trial operation should be carried out in either COOL or HEAT operation.
1-1� Measure the supply voltage and make sure that it is within the specified range.
1-2� In COOL operation, select the lowest programmable temperature;
in HEAT operation, select the highest programmable temperature�
1-3� Carry out the trial operation following the instructions in the operation manual to
ensure that all functions and parts, such as the movement of the flap, are working
properly�
• To protect the air conditioner, restart operation is disabled for 3 minutes after the system has been turned off.
1-4� After trial operation is complete, set the temperature to a normal level (78°F to 82°F
(26°C to 28°C) in COOL operation, 68°F to 75°F (20°C to 24°C) in HEAT operation)�
• When operating the air conditioner in COOL operation in winter,
or HEAT operation in summer, set it to the trial operation mode using
the following method.
1) Press
,
2) Press
, then select
and
at the same time.
, press
.
or
to turn on the system.
3) Press
• Trial operation will stop automatically after about 30 minutes.
.
To stop the operation, press
• Some of the functions cannot be used in the trial operation mode.
HEAT PUMP model
COOLING ONLY model
• The air conditioner draws a small amount of power in its standby mode. If the system is not to be used for some time
after installation, shut off the circuit breaker to eliminate unnecessary power consumption.
• If the circuit breaker trips to shut off the power to the air conditioner, the system will restore the original operation mode
when the circuit breaker is opened again.
2�
Test items
Test items
Symptom
Indoor and outdoor units are installed properly on solid bases.
Fall, vibration, noise
No refrigerant gas leaks.
Incomplete cooling/heating
function
Refrigerant gas and liquid pipes and indoor drain hose extension are
thermally insulated.
Water leakage
Draining line is properly installed.
Water leakage
System is properly grounded.
Electrical leakage
The specified wires are used for inter-unit wiring.
No operation or burn damage
Indoor or outdoor unit’s air inlet or air outlet are unobstructed.
Incomplete cooling/heating
function
Stop valves are opened.
Incomplete cooling/heating
function
Indoor unit properly receives remote control commands.
No operation
■English
Check
12
Two-dimensional bar code
is a manufacturing code.
3P379970-5B M15B134 (1510)
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