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Please mount the outdoor unit on stable ground
to prevent vibration and increase of noise level.
Decide the location for piping after sorting out
the different types of pipe available.
CONDENSED WATER DISPOSAL OF OUTDOOR UNIT
There are holes on the base of outdoor unit for
condensed water to exhaust.
In order for condensed water to flow to the
draining part, installed the unit on the level
ground or block so that the unit is 70mm above
the ground,same as figure shown.Join the drain
pipe to one hole.
At first insert one portion of the hook to the
base(Portion A), then pull the drain pipe in the
direction shown by the arrow while inserting the
hook into the base. After installation, check
whether the drain pipe cling to the base firmly.
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RAC-ME10HZ
5
5
RAC-ME14HZ
WARNING
THIS APPLIANCE MUST BE EARTHED.
Power supply shall be connected at the rated voltage, otherwise the unit will be broken or could not reach the specified capacity.
Procedures of Wiring
The naked part of the wire core should be 14 mm and the insulated part of the wire must be push into the terminal for 3 – 4 mm.
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 specified for the use of air-conditioner.
Please refer to the installation manual for wire connection and the wiring technique should meet the standards of electrical
installation.
There is a AC voltage drop between the AB terminals if the power is on. Therefore, be sure to remove the plug from its socket.
Wiring Of The Outdoor Unit
Please remove the side cover for wire connection.
You may not be able to close the side cover
due to the connecting cord, under such
situation, please press against the wait of
side cover to fix it.
Be sure that the hooks (2 places) are
WARNING
plugged in.
Otherwise, water leakage may occur and this
causes short circuit or faults.
RAC-ME10HZ
1
Insulation And Maintenance Of Pipe Connection
The connected terminals should be completed sealed with
heat insulator and then tied up with rubber strap.
Please tie the pipe and power line together with plastic tape
as shown in the figure of installation of both the indoor and
outdoor units. Then fix 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
1
Preparation of Pipe
Use a pipe cutter to cut the copper pipe.
Copper pipe
CAUITON
Jagged edge will cause leakage.
Point the side to be trimmed downwards during trimming to prevent copper chips from
entering the pipe.
Before flaring, please put on the hexagon screw cap.
Mould
Outer
A (mm)
Diameter (ø)
Imperial flaring tool
6.35 (1/4")
0.8 – 1.5
9.52 (3/8")
1.0 – 1.8
12.7 (4/8")
1.2 – 2.0
2
Pipe Connection
Please be careful when bending the copper pipe.
Applied frozen grease to the connection points and then screw in manually. After that, use
a torque wrench to tighten the connection.
Small diameter side
6.35 (1/4")
Hexagon
screw nut
9.52 (3/8")
Big diameter side
12.7 (4/8")
Spanner
Torque
wrench
Valve head cap
Valve core cap
WARNING
RAC-ME14HZ
F
D
2
Earth Line And Circuit Breaker
CAUITON
The earth line terminal of the outdoor unit is below the
service valve.
To avoid short circuit, it is necessary to install circuit breaker
depending on the mounting location of the unit.
Do not place earth line near the following objects:
(1) Water pipe
(2) Gas pipe — There is danger of catching fire.
(3) The earth line of lightning conductor and telephone —
short circuit may occur during lightning.
3
Removal Of Air From The Pipe And Gas Leakage Inspection
Trimming tool
1
2
Mould
A
Copper pipe
3
Rigid flaring tool
0 – 0.5
0 – 0.5
0 – 1.0
4
Outer
Torque N · m
Gas Leakage Inspection
diameter
(kgf · cm)
of pipe
Please use gas leakage detector to check if leakage occurs at
13.7 – 18.6 (140 – 190)
the connection of hexagon screw nut as shown on the right.
34.3 – 44.1 (350 – 450)
If gas leakage occurs, further tighten the connection to stop
leakage.
44.1 – 53.9 (450 – 550)
19.6 – 24.5 (200 – 250)
12.3 – 15.7 (125 – 160)
Wiring Of The Indoor Unit
Procedures of Removing the Wire Connection Cover
Pull the hooks at positions 1 and 2 of the s-cover of the air outlet on the right bottom of front cover in the directions as shown by
arrows to remove the s-cover.
Procedures of Wiring
Open the front panel, loosen and remove the screw at the electric box cover located at the right side of front cover.
Loosen and remove the screw fixing inner cover (sheet metal).
After inserting the connecting cords from the s-cover of air outlet, bend the tips of connecting cords as shown in the figure below.
Fix the cords securely to the inner cover (sheet metal) according to their respective colors. (Tightening torque: 5kgf·cm).
After the wiring is done, reinstall the inner cover (sheet metal) and the electric box cover accordingly.
1
Yellow/green lines grounding
N
L
3
Power Source And Operation Test
Power Source
WARNING
Do not alter the plug of power cord.
Do not make extension to the power cord.
CAUTION
Please use a new socket. Accident may occur due to the
use of old socket because of poor contact.
Please plug in and then remove the plug for 2 – 3 times.
This is to ensure that the plug is completely plugged into
the socket.
Keep additional length for the power cord and do not render
the plug under external force as this may cause poor
contact.
Do not fix the power cord with U-shape nail.
Operation Test
Please ensure that the air conditioner is in normal operating
condition during the operation test.
Explain to your customer the proper operation procedures
as described in the user's manual.
Procedures of using Vacuum Pump for Air Removal
As shown in figure on the right, remove
the cap of valve head and valve core
and then connect them to the vacuum
pump and sub-division valve.
Fully tighten the "Hi" shuttle of the sub-
division valve and completely unscrew
the "Lo" shuttle. Run the vacuum pump
for about 10–15 minutes, then completely
tighten the "Lo" shuttle and switch off
the vacuum pump.
Completely unscrew the spindle of the
service valve (at 2 places) in anti-
clockwise direction to allow the flow of
coolant (using Allen key).
Remove the connection pipe and tighten
the cap of valve head. The task is then
completed.
2
S-cover
white black red
yellow
brown
b
u l
e
e r
d
yellow
Wire clamp for
power cord
Lo
Hi
The body of
service valve
Cap of
valve core
Allen key
Cap of valve head
Cap of valve head
Electric Box Cover
Inner Cover (sheet metal)
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