CONNECTING THE PIPING
●
For left piping and left rear piping, align the marks on the wall
hook bracket and shape the connection pipe.
●
Bend the connection piping at a bend radius of 70 mm or more
and install no more than 35 mm from the wall.
●
After passing the indoor piping and drain hose through the wall
hole, hang the indoor unit on the hooks at the top and bottom of
the wall hook bracket.
[Installing the indoor unit]
●
Hang the indoor unit from the hooks at the top of the wall hook
bracket.
●
Insert the spacer, etc. between the indoor unit and the wall hook
bracket and separate the bottom of the indoor unit from the wall.
After hooking the indoor unit to the top hook, hook the fittings of the
indoor unit to the two bottom hooks while lowering the unit and
pushing it against the wall.
Top hooks
Indoor unit
(Fitting)
Bottom hooks
Wall hook
bracket
Indoor unit
Wall hook bracket
(Spacer)
Connection pipe
(6.35 mm dia.)
Connection pipe
(9.52 mm or 12.7 mm dia.)
Align the marks.
Bend (R70) with a
pipe bender
FINISHING
(1) Insulate between pipes.
●
For rear, right, and bottom piping, overlap the connection pipe
heat insulation and indoor unit pipe heat insulation and bind
them with vinyl tape so that there is no gap.
●
For left and left rear piping, butt the connection pipe heat insula-
tion and indoor unit pipe heat insulation together and bind them
with and vinyl tape so that there is no gap.
●
For left and left rear piping, wrap the area which accommodates
the rear piping housing section with cloth tape.
●
For left and left rear piping, bind the connection cord to the top
of the pipe with vinyl tape.
●
For left and left rear piping, bundle the piping and drain hose
together by wrapping them with cloth tape over the range within
which they fit into the rear piping housing section.
(2) Temporarily fasten the connection cord along the connection pipe
with vinyl tape. (Wrap to about 1/3 the width of the tape from the
bottom of the pipe so that water does not enter.)
(3) Fasten the connection pipe to the outside wall with a saddle, etc.
(4) Fill the gap between the outside wall pipe hole and the pipe with
sealer so that rain water and wind cannot blow in.
(5) Fasten the drain hose to the outside wall, etc.
INDOOR UNIT WIRING
CONNECTION
(1) Install the outdoor unit wall cap (supplied with the optional in-
stallation set or procured at the site) to the wall pipe.
(2) Connect the outdoor unit and indoor unit piping.
(3) After matching the center of the flare surface and tightening the
nut hand tight, tighten the nut to the specified tightening torque
with a torque wrench.
FLARING
(1) Cut the connection pipe to the necessary
length with a pipe cutter.
(2) Hold the pipe downward so that cuttings
will not enter the pipe and remove the
burrs.
(3) Insert the flare nut onto the pipe and flare
the pipe with a flaring tool.
Insert the flare nut (always use the flare nut
attached to the indoor and outdoor units re-
spectively) onto the pipe and perform the
flare processing with a flare tool.
Use the special R410A flare tool, or the
conventional (for R22) flare tool.
When using the conventional flare tool, al-
ways use an allowance adjustment gauge
and secure the A dimension shown in the
table.
BENDING PIPES
(1) When bending the pipe, be careful not to crush it.
(2) To prevent breaking of the pipe, avoid sharp bends.
Bend the pipe with a radius of curvature of 70mm or over.
(3) If the copper pipe is bend the pipe or pulled to often, it will become
stiff.
Do not bend the pipes more than three times at one place.
Flare nut tightening torque and L dimension
Flare nut
6.35 mm dia.
9.52 mm dia.
12.7 mm dia.
Tightening torque
15.7 to 17.6 N•m
(160 to 180 kgf•cm)
29.4 to 41.2 N•m
(300 to 420 kgf•cm)
48.0 to 59.8 N•m
(490 to 610 kgf•cm)
B dimension
9.1 mm
13.2 mm
16.6 mm
A (mm)
Pipe outside diameter
Pipe outside
diameter
ø 6.35 mm (1/4”)
ø 9.52 mm (3/8”)
ø 12.7 mm (1/2”)
Flash tool for
R410A, clutch type
0 to 0.5
0 to 0.5
0 to 0.5
Conventional (R22) flare tool
Cluth type
1.0 to 1.5
1.0 to 1.5
1.0 to 1.5
Wing nut type
1.5 to 2.0
1.5 to 2.0
1.5 to 2.0
CAUTION
(1) Fasten a flare nut with a torque wrench as instructed in this
manual. If fastened too tight, the flare nut may be broken
after a long period of time and cause a leakage of refrigerant.
(2) During installation, make sure that the refrigerant pipe is
attached firmly before you run the compressor. Do not op-
erate the compressor under the condition of refrigerant pip-
ing not attached properly with 2-way or 3-way valve open.
This may cause abnormal pressure in the refrigeration cycle
that leads to breakage and even injury.
Tighten with two wrenches.
Torque wrench
Wrench (fixed)
Flare nut
Indoor unit pipe
Connection pipe
To prevent gas leakage,
coat the flare surface with
refrigerator oil.
Die
A
Pipe
Check if [L] is flared
uniformly and is not
cracked or scratched.
(1) Match the terminal block numbers and connection
cord colors with those of the outdoor unit.
Erroneous wiring may cause burning of the elec-
tric parts.
(2)
Connect the connection cords firmly to the terminal
block. Imperfect installation may cause a fire.
CAUTION
(3) Always fasten the outside covering of the connec-
tion cord with the cord clamp. (If the insulator is
chafed, electric leakage may occur.)
(4) Securely connect the grand wire.
(5) Do not use the earth screw for an external connector.
Only use for interconnection between two units.
A. For solid core wiring
(1) Cut the wire end with a wire cutter or wire-cutting pliers, then strip
the insulation to about 25 mm (15/16" ) to expose the solid wire.
(2) Using a screwdriver, remove the terminal screw(s) on the terminal
board.
(3) Using pliers, bend the solid wire to form a loop suitable for the termi-
nal screw.
(4) Shape the loop wire properly, place it on the terminal board and
tighten securely with the terminal screw using a screwdriver.
B. For strand wiring
(1) Cut the wire end with a wire cutter or wire-cutting pliers, then strip
the insulation to about 10 mm (3/8") to expose the strand wiring.
(2) Using a screwdriver, remove the terminal screw(s) on the terminal
board.
(3) Using a round terminal fastener or pliers, securely clamp a round
terminal to each stripped wire end.
(4) Position the round terminal wire, and replace and tighten the termi-
nal screw using a screwdriver.
Str
ip 25 mm (15/16")
Insulation
Loop
B. Strand wire
Str
ip 10 mm (3/8")
Round
terminal
Wire
Screw with
special washer
Round
terminal
Terminal
board
Terminal block
Wire
Screw with
special washer
Round
terminal
HOW TO CONNECT WIRING TO THE TERMINALS
(1) Remove the cord clamp.
(2) Bend the end of the connection cord as shown in the figure.
40
m
m
50
m
m
Insert the tab into the square hole of the
indoor unit and fasten with a screw.
1
2
3
Connection
cord
Right bottom of
indoor unit
Cord clamp
(There is a
terminal block
inside.)
Screw
Connection
cord
Cord clamp
Tab
Screw
Square hole
(3) Connect the end of the connection cord fully into the terminal block.
(4) Fasten the connection cord with a cord clamp.
DANGER
Before starting work, check that power is not being supplied to indoor units and the outdoor unit.
+0
-0.4
+0
-0.4
+0
-0.4
TEST RUNNING
●
Perform test operation and check items 1 and 2 below.
●
For the operation method, refer to the operating manual.
●
The outdoor unit, may not operate, depending on the room
temperature. In this case, press the test run button on the
remote control unit while the air conditioner is running. (With
the transmit section of the remote control unit facing the body,
press the TEST RUN button with the tip of a ball point pen.)
●
To end test operation, press the remote control unit START/
STOP button. (When the air conditioner is run by pressing
the test run button, the OPERATION indicator lamp and TIMER
indicator lamp will simultaneously flash slowly.)
1. INDOOR UNIT
(
1) Is operation of each button on the remote control unit
normal?
(2) Does each lamp light normally?
(3) Do the air flow-direction louver operate normally?
(4) Is the drain normal?
2. OUTDOOR UNIT
(1) Is there any abnormal noise and vibration during op-
eration?
(2) Will noise, wind, or drain water from the unit disturb
the neighbors?
(3) Is there any gas leakage?
•
Error
The OPERATION, TIMER, AIR CLEAN or SUPER QUIET and COIL
DRY lamps operate as follows according to the error contents.
CAUTION
(1)
Do not operate the air conditioner in
the test running state for a long time.
(2)
For the operation method, refer to
the operating manual and perform
operation check.
Transmitter section
Test run button
B
Error contents
Error display
Outdoor unit circuit board error or miss
wiring between outdoor unit and indoor uint
Indoor unit temperature sensor error
(room temperature or piping)
Outdoor unit temperature sensor error 1
(discharge temperature, heat exchanger,
outdoor temperature,heat sink or compressor)
Outdoor unit temperature sensor error 2
(2-way valve or 3-way valve)
indoor unit control system error
Outdoor unit control system error
or selection error of connected indoor unit
Indoor unit fan motor error
Outdoor unit pressure switch error
ACTPM error
Indoor unit EEPROM error
OPERATION
TIMER AIR CLEAN or COIL DRY
SUPER QUIET
(RED)
(GREEN) (GREEN) (ORANGE)
OFF
OFF
OFF
2 times
OFF
OFF
3 times
OFF
OFF
3 times
OFF
OFF
4 times OFF
OFF
5 times OFF
OFF
6 times OFF
OFF
7 times OFF
OFF
8 times OFF
OFF
CUSTOMER GUIDANCE
Explain the following to the customer in accordance with the operating manual:
(1) Starting and stopping method, operation switching, temperature adjustment, timer, air flow switching, and other remote control unit operations.
(2) Air filter removal and cleaning, and how to use the air louvers.
(3) Give the operating and installation manuals to the customer.
Lower
65 mm dia. hole
Center mark
10 mm or over
10 mm or over
Lower
65 mm dia. hole
(1) Cut a 65 mm diameter hole in the wall at the position shown in figure.
(2) When cutting the wall hole at the inside of the installation frame, cut the
hole within the range of the left and right center marks 40 mm below the
installation frame.
When cutting the wall hole at the outside of the installation frame, cut the
hole at least 10 mm below less.
(3) Cut the hole so that the outside end is lower (5 to 10 mm) than the inside
end.
(4) Always align the center of the wall hole. If misaligned, water leakage will
occur.
(5) Cut the wall pipe to match the wall thickness, stick it into the wall cap,
fasten the cap with vinyl tape, and stick the pipe through the hole. (The
connection pipe is supplied in the installation set.)
(6) For left piping and right piping, cut the hole a little lower so that drain
water will flow freely.
(1) Install the wall hook bracket so that it is correctly positioned hori-
zontally and vertically. If the wall hook bracket is titled, water will
drip to the floor.
(2) Install the wall hook bracket so that it is strong enough to with-
stand the weight of an adult.
●
Fasten the wall hook bracket to the wall with 6 or more screws
through the holes near the outer edge of the bracket.
●
Check that there is no rattle at the wall hook bracket.
WARNING
If the wall pipe is not used, the cord interconnecting
the indoor and outdoor units may touch metal and
cause electric leakage.
CAUTION
Install the wall hook bracket horizontally and perpen-
dicularly.
[Rear piping, Right piping, Bottom piping]
●
Install the indoor unit piping in the direction of the wall hole and
bind the drain hose and pipe together with vinyl tape.
●
Install the piping so that the drain hose is at the bottom.
●
Wrap the pipes of the indoor unit that are visible from the outside
with decorative tape.
[For Left rear piping, Left piping]
Interchange the drain cap and the drain hose.
INSTALLING THE WALL HOOK BRACKET
CUTTING THE HOLE IN THE WALL FOR THE CONNECTING PIPING
FORMING THE DRAIN HOSE AND PIPE
Fasten with
vinyl tape
(Wall cap)
(Wall pipe)
(Inside)
Wall
(Outside)
5 to 10 mm low
Hook
Wall hook
bracket
Counter weight
Wall hook bracket
Tapping screw
Center notch
String
Indoor unit drain hose (bottom)
Pipe (top)
Bottom
piping
Right piping
Bind with vinyl tape
Rear piping
Removal method of drain
hose
●
Remove the screw at the left of
drain hose and pull out drain
hose.
Installation method of
drain hose
●
Vertically insert the drain hose toward
the inside, so that the drain fixture
(blue) can accurately align with the
screw hole around the drain cock.
After inserting and before re-
placing, please reinstall and fix
the removed screws.
●
Be sure to install around the drain hose connector.
●
As the screw is inside, be sure to use screwdriver treated with mag-
net.
Screw
Drain hose
Drain fixture (blue)
Screw hole
Drain hose
Screw
Drain cock
Drain fixture (blue)
For left outlet piping, cut off
the piping outlet cutting
groove with a hacksaw.
Indoor unit
drain hose
Remove the drain cap by
pulling at the projection at the
end of the cap with pliers, etc.
Drain cap
CAUTION
(1)
In order to align the drain hose and drain cap, be
sure to insert securely and vertically. Incline inser-
tion will cause water leakage.
(2)
When inserting, be sure not to attach any mate-
rial besides water. If any other material is attached,
it will cause deterioration and water leakage.
(3)
After removing drain hose, be sure not to forget
mounting drain cap.
(4)
Be sure to fix the drain hose with tape to the
bottom of piping.
(5)
Prevent drain water frozen under low temperature
environment.
When installing indoor unit’s drain hose outdoors, necessary
measure for frost protection should be taken to prevent drain
water frozen.
• Under low temperature environment (when outdoor tempera-
ture under 0
°
C), after cooling operation is executed, water in
the drain hose could be frozen.
Once drain water is frozen, the drain hose will be blocked
and water leakage may be resulted for indoor unit.
A. Solid wire
P/N 9377795021
Connectioncord
Pipe
Drain hose
For connection from the left rear
View from indoors
Connection cord
Drain hose
Wall pipe
Connection
pipe
Connection pipe
(heat insulation)
Bind the pipes together
to that there is no gap.
Overlap the insulation
Indoor unit pipe
(heat insulation)
Vinyl tape
Pipe
Drain hose
Cloth tape
Wrap with cloth tape
Left piping
Pipe
(Saddle)
(Outside wall cap)
(Sealer putty)
(Outdoors)
Wall
Check the following:
Wave
Drain hose
GOOD
BAD
BAD
BAD
Lifted up
Saddle
End in water
: flashing
: flashing (2~8 times)
: Fast flashing
Installation method of Drain cap
●
Use a hexagonal wrench (4mm at op-
posite side) to insert the drain cap, till
the drain cap contacts the tip of drain
cook.
No gap
Hexagonal
wrench
Drain Cook
Drain cap
