Advertisement
1
Preparation of Pipe
Use a pipe cutter to cut the copper pipe.
●
CAUTION
!
Jagged edge will cause leakage.
●
Point the side to be trimmed downwards during trimming to prevent copper chips from entering
●
the pipe.
Before fl aring, please put on the fl are nut.
●
Die
Die
Copper pipe
Outer
Thickness
Diameter
Flare tool for R32
(mm)
mm (inch)
Clutch type
6.35 (1/4")
0.8
0.0 ~ 0.5
9.52 (3/8")
0.0 ~ 0.5
0.8
12.70 (1/2")
0.8
0.0 ~ 0.5
1.0
0.0 ~ 0.5
15.88 (5/8")
2
Pipe Connection
In case of removing fl are nut of an Indoor unit, fi rst remove a nut of small diameter
!
side, or a seal cap of big diameter side will fl y out. Prevent water from entering
CAUTION
into the piping when working.
Small dia. side
Flare nut
Large dia. side
Torque
Small dia. side
wrench
Valve
Wrench
head cap
Large dia. side
Valve core cap
WARNING
THIS APPLIANCE MUST BE EARTHED.
!
Procedures of Wiring
Indoor Unit
Connecting cord
Detail of Cutting the Connecting Cord
Indoor Unit
Strip wires
Strip wires
Green + Yellow
Green + Yellow
(ground)
Connecting cord
Power line
WARNING
!
The naked part of the wire core should be 10 mm and fi x it to the terminal tightly. Then try
●
to pull the individual wire to check if the contact is tight. Improper insertion may burn the
terminal.
Be sure to use only wire specifi ed for the use of air-conditioner.
●
Please refer to the manual for wire connection and the wiring technique should meet the
●
standard of the electrical installation.
There is an AC voltage drop between the LN terminal if the power is on. Therefore, be sure
●
to remove the plug from its socket.
Insulation And Maintenance Of Pipe Connection
1
The connected terminals should be completely sealed with heat insulator
●
and then tied up with rubber strap.
Please tie the pipe and power line together with vinyl tape as shown
●
in the fi gure showing the installation of Indoor and Outdoor units. Then
fi x their position with holders.
To enchance the heat insulation and to prevent water condensation,
●
please cover the outdoor part of the drain hose and pipe with insulation
pipe.
Completely seal any gap with putty.
●
Insulation material for pipe connection
Sleeve of
protection pipe
Putty
Putty
>
< IA2271: B
Trimming tool
Copper pipe
Recommend to use
●
R32 fl aring tool.
A (mm)
Conventional fl are tool
Clutch type
Wing nut type
1.0 ~ 1.5
1.5 ~ 2.0
1.0 ~ 1.5
1.5 ~ 2.0
1.0 ~ 1.5
1.5 ~ 2.5
1.0 ~ 1.5
1.5 ~ 2.5
Outer
Torque N·m
dia.of pipe
(kgf
·
cm)
6.35 (1/4")
14.0 – 18.0 (140 ~ 180)
9.52 (3/8")
33.0 – 42.0 (330 ~ 420)
12.70 (1/2")
50.0 – 62.0 (500 ~ 620)
15.88 (5/8")
63.0 – 77.0 (630 ~ 770)
6.35 (1/4")
19.6 – 24.5 (200 ~ 250)
9.52 (3/8")
19.6 – 24.5 (200 ~ 250)
12.7 (1/2")
29.4 – 34.3 (300 ~ 350)
15.88 (5/8")
29.0 – 31.0 (296 ~ 316)
12.3 – 15.7 (125 ~ 160)
Outdoor Unit
Power cord
Outdoor Unit
Connecting cord
Green + Yellow
(ground)
Leave some space in the connecting cord for
●
maintenance purpose and be sure to secure it
with the cord band.
Secure the connecting cord along the coated
●
part of the wire using the cord band. Do not
exert pressure on the wire as this may cause
overheating or fi re.
2
Power Source And Operation Test
Power Source
!
WARNING
Never remodel the power plug nor extend the long-distance
●
cord.
Keep additional length for the power cord and do not
●
render the plug under external force as this may cause
poor contact.
Do not fi x the power cord with U-shape nail.
●
The power cable easily generates heat. Do not bring the
●
cable together with a wire or vinyl tie.
Operation Test
Please be sure to measure the supply voltage before operation
●
test.
Please ensure that the air conditioner is in normal operating
●
condition during the operation test.
1. Operate with Cool Mode(in summer) or Heat Mode(in
winter).
2. Press Temperature Button on the remote controller to set
the desired temperature to 16.0°C for Cool Mode or 32.0°C
for Heating Mode.
Set the desired fan speed to "
3
Removal Of Air From The Pipe And Gas Leakage Inspection
Procedures of using Vacuum Pump for Air Removal
As shown in right fi gure, remove the cap of valve core.
Then, connect the charge hose. Remove the cap of
1
valve head. Connect the vacuum pump adapter to the
vacuum pump and connect the charge hose to the
adapter.
Fully tighten the "Hi" knob of the manifold valve and
completely unscrew the "Lo" knob. Run the vacuum
2
pump for about 10~15 minutes, then completely tighten
the "Lo" knob and switch off the vacuum pump.
Remove the charge hose and tighten the cap of valve
3
core. Check the cap's periphery if there is any gas
leakage.
Completely unscrew the spindle of the service valve (at
2 places) in anti-clockwise direction to allow the fl ow of
4
refrigerant (using Hexagonal Wrench key).
Re-cap the service valve and tighten using wrench.
5
Check the cap's periphery if there is any gas leakage.
The task is then completed.
!
CAUTION
Prevent moisture from entering pipe connection.
●
Refrigerating machine oil not be applied to the outside of the
●
fl are.
When refrigerating machine oil is applied to the outside of the
fl are, excessive tightening of the fl are nut, cracking of the fl are
nut, destruction of the fl are and gas leakage may occur.
When using the control valve, do not use deteriorated packing.
●
And, do not overtighten the steering wheel.
Gas leakage from the service valve part, stagnation, touching
fi re, rarely cause ignition.
Wiring of The Outdoor Unit
Please remove the side plate for wire connection.
●
If you cannot attach the side plate due to the connection cord, please press the connecting cord in
●
the direction to the front panel to fi x it.
!
Be sure that the hooks of the side plate is fi xed in certainly. Otherwise water leakage may occur
●
and this causes short circuit or faults.
WARNING
The connecting cord should not touch to service valve and pipes. (It becomes high temperature in
●
heating operation.)
Checking for the electric source and the voltage range
Before installation, the power source must be checked and necessary wiring work must be completed. To make
●
the wiring capacity proper, use the wire gauge list below for the wiring from house distribution fuse box to the
outdoor unit in consideration of the locked rotor current.
Investigate the power supply capacity and other electrical conditions at the
●
installing location.
Depending on the model of room air conditioner to be installed, request the
customer to make arrangements for the necessary electrical work etc.
The electrical work includes the wiring work up the outdoor unit. In
localities where electrical conditions are poor, use of a voltage regulation
is recommended.
●
Install outdoor for the room air conditioner within the reaching range of the
line cord.
For (Power cord - L, N, Earth)
For (Connecting cord - 1, 2, 3, Earth)
Wire cross-section
Wire length
2.5 mm
2
up to 30 m
IMPORTANT
Circuit Breaker
20A
WARNING
!
3. Operate the air conditioner for 20 minutes at
least and make sure that the air from the air
conditioner is cool or warm.
4. Press the ON/Off button on the remote
controller to make sure that the air conditioner
stops running.
If the indication lamps of the indoor unit blink
●
with sounding the buzzar during the operation
test, perform a check following the procedures
below.
Indication lamps
blinking mode
All indication
Make sure that the spindles
lamps blink three
of both service valves are
times repeatedly.
open. (Outdoor fan might
operate for near 15 minutes
after the operation stop
for the protection. For the
reoperation at that case, do
it after outdoor fan will stop.)
Before the check and the reoperation, reset the
●
power supply by turning off and on the circuit
breaker only after:-
1. waiting for at least 5 minutes; or
"(High).
2. pressing the Temporary Switch Button only
once while the power is OFF.
When the meter reaches - 101KPa (-76cmHg) during
pumping, fully tighten the shuttle.
Meter showing pressure
Closed R32
Lo
Hi
Manifold valve
Charge hose
Valve
Valve
Vacuum
pump
adapter
When pumping starts, slightly loosen the fl are nut to
check of air sucked in. Then tighten the fl are nut.
The body of service valve
Cap of valve
core
Hexagonal
Wrench Key
Cap of valve head
Cap of valve head
Gas Leakage Inspection
Please use gas leakage
detector to check if leakage
occurs at the connection
of Flare nut as shown on
the right.
If gas leakage occurs, further
tighten the connection to
stop leakage. (Be sure to
use R32 detector)
Wire cross-section
1.5mm
2
CAUTION
Outdoor supply cords shall not be lighter
than polychloroprene sheathed fl exible
cord with code designation 60245 IEC 57.
CAUTION
!
Don't operate for over 5 minutes with
●
the situation that the spindle of the
service valve is closed. This will cause
the defect.
Don't operate by Cool Mode or Dry
●
Mode with the door and windows
opened, (the room humidity is always
above 80%) for a long period of time.
Water will condense and drip down
What do check
occasionally. This will wet your furniture.
Explain to your customer the proper
●
operation procedures as described in the
user' s manual.
If the indoor unit won't operate, check the
●
cable for correct connection.
Turn on the lamp in the room where the
●
indoor unit is installed and check the
remote controller for normal operation.
Vacuum pump
Cover
Earth terminal
Advertisement
