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5
8
AIR PURGE
DRAIN PIPING
1. AIR PURGE
• •
Install the drain pipe with downward gradient (1/50 to 1/100) and so
(1)
Remove the cap, and connect the gauge manifold and the vacuum
there are no rises or traps in the pipe.
•
pump to the charging valve by the service hoses.
Use general hard polyvinyl chloride pipe (VP25) [outside diameter 38
(2)
Vacuum the indoor unit and the connecting pipes until the pres-
mm].
•
sure in them lowers to below 1.5 mmHg.
During installation of the drain pipe, be careful to avoid applying
(3)
Disconnect the service hoses and fit the cap to the charging valve
pressure to the drain port of the indoor unit.
•
(Tightening torque : 70 to 90 kgf • cm).
When the pipe is long, install supporters (Fig. 30).
(4)
Remove the blank caps, and fully open the spindles of the 2-way
•
Do not perform air bleeding.
•
and 3-way valves with a hexagon wrench (Torque : 2-way valve:
Always heat insulate (8mm or over thick) the indoor side of the drain
70 to 90 kgf • cm, 3-way valve: 100 to 120 kgf • cm).
pipe.
(5)
Tighten the blank caps of the 2-way valve and 3-way valve to the
Fig. 30
specified torque (200 to 250 kgf • cm).
Fig. 27
Refrigerant pipe
Outdoor unit
3-way valve
Arrange the drain pipe
lower than this portion.
Blank cap
Service hose with
valve core
Charging valve
Lifted up
Cap
BAD
Fig. 28
Supporter
Gauge manifold
LO
HI
(1)
Install insulation for the drain pipe. (See Figs. 31 and 32.)
Cut the included insulation material to an appropriate size and
Vacuum pump
adhere it to the pipe.
Fig. 31
Service hose
2. ADDITIONAL CHARGE
Refrigerant suitable for a piping length of 5 m is charged in the outdoor
unit at the factory.
Indoor unit (drain port)
When the piping is longer than 5 m, additional charging is necessary.
For the additional amount, see the table below.
Fig. 32
Table 6
16 ft
33 ft
49 ft
66 ft
82 ft
99 ft
Pipe length
(5 m)
(10 m)
(15 m)
(20 m)
(25 m)
(30 m)
Indoor unit
Heat & Cool
7.1 oz
14.1 oz
21.2 oz
28.2 oz
Additional
(Reverse cycle)
None
(200 g)
(400 g)
(600 g)
(800 g)
refrigerant
Cooling
3.0 oz
6.0 oz
9.0 oz
12.0 oz
15.0 oz
None
model
(85 g)
(170 g)
(255 g)
(340 g)
(425 g)
(2)
If "1 Right rear piping": fasten the drain pipe with VT wire so
that the pipe slopes correctly within the indoor unit. (Fig. 33)
Between 5 m and 30 m, when using a connection pipe other than that in
the table, charge additional refrigerant with 1.8 oz (40 g) / 3.3 ft (1 m) (Re-
Fig. 33
verse cycle model), 0.6 oz (17 g) / 3.3 ft (1 m) (Cooling model) as the cri-
teria.
CAUTION
(1)
When moving and installing the air conditioner, do not
mix gas other than the specified refrigerant (R22)
inside the refrigerant cycle.
(2)
When adding refrigerant, add the refrigerant from the
charging valve at the completion of work.
Indoor unit (rear view)
(3)
If the units are further apart than the maximum pipe
length, correct operation can not be guaranteed.
9
ELECTRICAL WIRING
6
GAS LEAKAGE INSPECTION
HOW TO CONNECT WIRING TO THE TERMINALS
A. For solid core wiring (or F-cable)
CAUTION
(1)
Cut the wire and with a wire cutter or wire-cutting pliers,
After connecting the piping, check the joints for gas
then strip the insulation to about 15/16" (25 mm) of
leakage with gas leak detector.
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
7
for the terminal screw.
(4)
Shape the loop wire properly, place it on the terminal
INSTALLING THE COUPLER HEAT
board and tighten securely with the terminal screw
using a screwdriver.
INSULATION
B. For strand wiring
After checking for gas leaks, insulate by wrapping insulation around the
(1)
Cut the wire and with a wire cutter or wire-cutting
two parts (large and small) of the indoor unit coupling, using the coupler
pliers, then strip the insulation to about 3/8" (10 mm) of
heat insulation.
expose the strand wiring.
After installing the coupler heat insulation, wrap both ends with vinyl
(2)
Using a screwdriver, remove the terminal screw(s) on
tape so that there is no gap.
the terminal board.
Secure both ends of the heat insulation material using nylon fasteners.
(3)
Using a round terminal fastener or pliers, securely
Fig. 29
clamp a round terminal to each stripped wire end.
(4)
Position the round terminal wire, and replace and
Coupler heat insulation (large)
tighten the terminal screw using a screwdriver.
Fig. 34
Connection pipe (large)
Indoor unit
Connection pipe (small)
Coupler heat insulation (small)
Nylon fastner (large)
No gap
Indoor unit
Coupler heat
insulation
Nylon fastner (small)
•
When using an auxiliary pipe, make sure that the fastener
used is insulated in the same way.
1. INDOOR UNIT SIDE
(1)
Remove the two tapping screws and pull the control box down-
ward. (Fig. 35)
Fig. 35
Indoor unit
Control box
Drain pipe
Tapping screw
GOOD
(2)
Remove the Cover A and install the Connection cord (Fig. 36 and
37)
(3)
After wiring is complete, clamp the Connection cord with the
Cord clamp (Fig. 37)
(4)
Reattach Cover A. Then fasten the control box back into its
original position using the two tapping screws.
Wave
(5)
Attach the connection cord and cable clips. Make sure that they
BAD
are positioned so that they will not interfere with opening and
closing of the intake grille or with removal and installation of
the air filters. (Fig. 37)
End in water
Fig. 36
5 to 6.5 ft
(1.5 to 2 m)
Control box
Cover A
WARNING
Drain pipe
Insulation for Drain pipe
(1)
Before starting work, check that power is not being
(To be obtained locally. Length should
be at least 8mm.)
supplied to the outdoor unit.
Drain pipe insulation (accessories)
(2)
Match the terminal board numbers and connection
cord colors with those of the outdoor unit.
Erroneous wiring may cause burning of the electric
parts.
Drain pipe insulation
(3)
Connect the connection cord firmly to the terminal
Drain pipe
board. Imperfect installation may cause a fire.
(4)
Always fasten the outside covering of the connec-
tion cord with the cord clamp. (If the insulator is
No gap
10 mm or over
chafed, electric leakage may occur.)
(5)
Always connect the ground wire.
Fig. 37
VT wire
Control box
Drain hose
Connection cord
Terminal board
Earth screw
Cord clamp
Connection cord
To outdoor unit
Connection cord
Cable clip
2. OUTDOOR UNIT SIDE
WARNING
(1)
Before starting work, check that power is not being
supplied to the outdoor unit.
(2)
Match the terminal board numbers and connection
cord colors with those of the outdoor unit.
Erroneous wiring may cause burning of the electric
parts.
(3)
Connect the connection cord firmly to the terminal
board. Imperfect installation may cause a fire.
(4)
Always fasten the outside covering of the connec-
tion cord with the cord clamp. (If the insulator is
chafed, electric leakage may occur.)
(5)
Always connect the ground wire.
CAUTION
(1)
Use 1.0 mm
2
to 1.5 mm
2
H07RN-F or equivalent as the
connection cord.
(2)
Select power cable matched to the fuse capacity.
(Install in accordance with standard.)
(3)
Use VW-1, 12 mm diameter, 0.5 to 1.0 mm thick, PVC
tube as the insulation tube.
(1)
Remove outdoor unit valve cover and connect the power cord and
the outdoor unit connection cord wired at the indoor unit.
(2)
Fasten the sheath with a cord clamp.
When the voltage is low and the air conditioner is diffi-
(3)
Fasten the power cord and connection cord with cable clip and
cult to start, contact the power company the voltage
binders as shown in (Fig. 40)
raised.
Fig. 38
Control box
11
Terminal board
TEST RUNNING
L N 3
2
1
(N)
•
Perform test operation and check items 1 and 2 below.
•
For the operation method, refer to the operating manual.
•
The outdoor unit may not run, depending on the room
temperature. In this case, press the TEST RUN button while the
Power cord
air conditioner is running.
Make longer
(With the transmit section of the remote control unit facing the
than the other
wires.
body, press the TEST RUN button with the tip of a ball point pen.)
Ground
Cord clamp
Fig. 42
Insulation tube
Connection cord
Insulation tube
(indoor unit and outdoor
unit connection cord)
Power cord
Power supply
Power line
L
N
3
3
2
2
(N)
(N)
1
1
Control line
EARTH
Indoor unit
Outdoor unit
•
side terminal
side terminal
To end test operation, press the remote control unit START/STOP
button.
Fig. 39
(When the air conditioner is run by pressing the remote control
unit TEST RUN button, the OPERATION and TIMER lamps will
simultaneously flash slowly.)
1. INDOOR UNIT
(1)
Is operation of each button on the remote control unit nor-
After passing the connection
mal?
cord through the insulation
(2)
Does each lamp light normally?
tube, fasten it with the cord
(3)
Do not air flow direction flap and louvers operate normally?
clamp
(4)
Is the drain normal?
•
Use VW-1, 0.5 to 1.0 mm thick, PVC tube as the insulation tube.
2. OUTDOOR UNIT
(1)
Is there any abnormal noise and vibration during operation?
Fig. 40
(2)
Will noise, wind, or drain water from the unit disturb the
neighbors?
(3)
Is there any gas leakage?
Cable clip
12
(1)
Install the filter guide.
(2)
Install the intake grills.
(3)
Install side covers A and B (if the unit is installed in a half-
Cable clip
concealed orientation, only install side cover A).
(4)
Install the air filters.
13
CUSTOMER GUIDANCE
Explain the following to the customer in accordance with the operating
manual:
(4)
Install the valve cover.
(1)
Starting and stopping method, operation switching, temperature
Fig. 41
adjustment, timer, air flow adjustment, and other remote control
unit operations.
(2)
Air filter removal and cleaning.
(3)
Give the operating and installation manuals to the customer.
Valve
cover
Reinstall the
14
removed screws.
REMOTE CONTROL UNIT
INSTALLATION
1
Accessory
part
3
(1)
Check that the indoor unit correctly receives the signal
from the remote control unit, then install the remote
control unit holder.
(2)
Select the remote control unit holder selection site by
paying careful attention to the following:
Avoid places in direct sunlight.
2
Select a place that will not be affected by the heat
Attach the
four fasteners.
from a stove, etc.
10
1. REMOTE CONTROL UNIT HOLDER INSTALLATION
•
Install the remote control unit holder to a wall or pillar with the
POWER
tapping screws.
Fig. 43
WARNING
For use as Handy Type
(1)
The rated voltage of this product is 220-240V AC
Insert
50Hz.
(2)
Before turning on verify that the voltage is within the
198V to 264V range.
(3)
Always use a special branch circuit and install a special
Tapping
receptacle to supply power to the air conditioner.
screws
(4)
Use a special branch circuit breaker and receptacle
matched to the capacity of the air conditioner.
1
Mount the Holder.
2
Set the Remote Control
Unit.
(Fuse/Breaker capacity : 30 A)
(5)
The special branch circuit breaker is installed in the per-
For use as Wall Fixing Type
manent wiring. Always use a circuit that can trip all the
Insert
poles of the wiring and has an isolation distance of at
least 3mm between the contacts of each pole.
(6)
Perform wiring work in accordance with standards so
that the air conditioner can be operated safely and
positively.
Tapping
screws
(7)
Install a leakage special branch circuit breaker in
accordance with the related laws and regulations
and electric company standards.
1
Mount the Holder.
2
Set the Remote Control
Unit.
2. REMOTE CONTROL UNIT CODE SWITCHING
CAUTION
Fig. 44
Indoor unit
Printed circuit board
JM1
JM2
JM3
AUTORESTART
REMOCON 2
REMOCON 1
Remote control unit
START/STOP button
A
B
C
D
START
STOP
ACL button
TEST RUN button
Remote control unit
A B C D
signal selector switch
A B C D
Confirm the remote control unit signal selector switch selection and
printed circuit board setting.
If these are not confirmed, the remote control unit cannot be operat-
ed for the air conditioner.
Table 7
Jumper wire
Remote control unit
signal selector switch
JM 2
JM 3
Connect
Connect
A (Primary setting)
Connect
Disconnect
B
Disconnect
Connect
C
Disconnect Disconnect
D
After setting the remote control unit signal selector
switch, press the ACL button.
FINISHING
15
FRESH-AIR INTAKE
(1)
Open up the knockout hole for the fresh-air intake, as shown in
Fig. 45. (If using half-concealed installation, open up the top
knockout hole instead.)
Fig. 45
For half concealed
installation
Indoor unit
CAUTION
(1)
When removing the cabinet (iron plate), be careful not
to damage the indoor unit internal parts and surround-
ing area (outer case).
CAUTION
(2)
When processing the cabinet (iron plate), be careful
not to injure yourself with burrs, etc.
(2)
Fasten the round flange (optional) to the fresh-air intake, as
shown in Fig. 46. (If using half-concealed installation, attach to
the top.)
Fig. 46
Slide up
Round duct (option parts)
[After completing "2 INDOOR UNIT INSTALLATION"...]
(3)
Connect the duct to the round flange.
(4)
Seal with a band and vinyl tape, etc. so that air does not leak
from the connection.
3
To remove the Remote
Control Unit (when use
Fig. 47
at hand.)
Tapping
screw
Duct
Slide
3
Atlach the unit to the
holder as shown.
16
A ERROR DISPLAY
1. INDOOR UNIT
Operation can be checked by lighting and flashing of the display
section OPERATION, TIMER and VERTICAL SWING lamps.
Perform judgment in accordance with the following.
Fig. 48
VERTICAL SWING lamp (Orange)
TIMER lamp (Green)
OPERATION lamp (Red)
MANUAL
AUTO
SWING SWING TIMER OPERATION
•
Test running
When the air conditioner is run by pressing the remote
control unit test run button, the OPERATION, TIMER and
VERTICAL SWING lamps flash slowly at the same time.
•
Error
The OPERATION, TIMER and VERTICAL SWING lamps operate
as follows (Table 8) according to the error contents.
Table 8
Error display
Error contents
OPERATION
TIMER
VERTICAL
lamp
lamp
SWING lamp
Model information abnormal
Blinks
Blinks
Goes off
(permanent type)
Drain abnormal (permanent
Pulses
Blinks
Goes off
type)
4 times
Pulses
Blinks
Goes off
Indoor fan abnormal
6 times
Room air temperature
Goes off
thermistor open circuit
Pulses
Blinks
2 times
Room air temperature
Blinks
thermistor short circuit
Piping thermistor open
Goes off
circuit
Pulses
Blinks
3 times
Piping thermistor short
Blinks
circuit
Pulses
Serial communications
Blinks
Goes off
5 times
abnormal
Reverse phase wire
Pulses
Blinks
Goes off
connection abnormal
2 times
Outdoor heat exchange
Goes off
thermistor open circuit
Pulses
Blinks
3 times
Outdoor heat exchange
Blinks
thermistor short circuit
Pulses
Blinks
Goes off
High pressure abnormal
6 times
Outdoor discharge
Goes off
thermistor open circuit
Pulses
Blinks
5 times
Outdoor discharge
Blinks
thermistor short circuit
Pulses
Discharge temperature
Blinks
Goes off
7 times
abnormal
Outdoor air temperature
Goes off
thermistor open circuit
Pulses
Blinks
4 times
Outdoor air temperature
Blinks
thermistor short circuit
2. OUTDOOR UNIT
•
Error
The LED lamps operate as follows (Table 9) according to the
error contents.
Table 9
Error display
Error contents
Discharge pipe
Lighting
ON
temperature
continue
OFF
abnormal
0.5 sec
Outdoor heat
ON
exchanger tem-
Puls 1 time
perature sensor
OFF
repeated
5 sec
abnormal
LED
No. 1
Lamp
0.5 sec
0.5 sec
Outdoor tem-
ON
perature sensor
Pulses 2 times
abnormal
OFF
repeated
5 sec
0.5 sec
0.5 sec
ON
Discharge pipe
temperature
Pulses 3 times
OFF
sensor abnormal
repeated
5 sec
LED
ON
Lighting
High pressure
No. 2
continue
abnormal
Lamp
OFF
When the fault is cleared, the LED lamp goes off.
However, for discharge pipe temperature abnormal and high
pressure abnormal, the LED lamp lights continuously for 24 hours,
as long as the power is not turned off.
PART NO. 9361156012-02
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