Preparation of Pipe
1
●
Use a pipe cutter to cut the copper pipe.
●
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.
Pipe Connection
2
INST
ALLA
TION OF REFRIGERA
TING PIPES AND AIR REMO
VA
L
CAUTION
!
Outer
diameter
of pipe (ø)
6.35 (1/4")
9.52 (3/8")
Valve head cap
Valve core cap
Torque N.m
(kgf
●
cm)
13.7 – 18.6 (140 – 190)
34.3 – 44.1 (350 – 450)
19.6 – 24.5 (200 – 250)
12.3 – 15.7 (125 – 160)
Outer
Diameter (ø)
6.35 (1/4")
9.52 (3/8")
Imperial flaring tool
0.8 – 1.5
1.0 – 1.8
Rigid flaring tool
0 – 0.5
0 – 0.5
A (mm)
Small diameter side
Big diameter side
●
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.
Hexagon Screw Nut
Spanner
Torque Wrench
A
Installation Of Drain Hose
2
CAUTION
!
You are free to choose the side (left or right) for the installation of drain hose. Please ensure the
smooth flow of condensed water of the indoor unit during installation. (Carelessness may result in water
leakage.)
!
CAUTION
Be sure that the drain
hose is not loosely
connected or bent.
OUTDOOR UNIT
●
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.
Procedure to remove the cover of wiring terminals
●
Remove the screw (1 piece).
●
Hold the projected part at the lower left of the cover and push the cover
upwards to remove it.
●
To close the cover, insert the upper part of the cover into the body of outdoor
unit, then be sure that the hook below the cover is plugged in before screwing.
Please Face This Side
(suction side) Of The
Unit To The Wall
Please Remove The Cover For Wire Connection
Hook
Removal Of Air From The Pipe And Gas Leakage
1
AIR REMO
V
A
L
Gas Leakage Inspection
Please use gas leakage detector to check if leakage occurs at the
connection of Hexagon screw nut as shown on the right.
If gas leakage occurs, further tighten the connection to stop leakage.
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.
2
Completely unscrew the spindle of the
service valve (at 2 places) in anti-
clockwise direction to allow the flow of
coolant (using Allen key).
3
Remove the connection pipe and tighten
the cap of valve head. The task is then
completed.
4
1
The Body Of
Service Valve
Cap Of Valve
Core
Allen Key
Cap Of Valve Head
Cap Of Valve Head
CONNECTION OF PO
WER CORD
●
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 A, B terminals if the power is on. Therefore, be sure to remove
the plug from its socket.
●
THIS APPLIANCE MUST BE EARTHED.
WARNING
!
WARNING
!
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
Detail of cutting the connecting cord
To remove the connecting wires for the
indoor unit, please remove the low cover
panel in front of the unit.
Brown (L)
Blue (N)
Green & Yellow
Line Cord
Indoor Unit
Outdoor Unit
AC 220-240V
Connecting Cord
Thermistor Wire
Indoor Unit
Outdoor Unit
GRN + YEL
GRN + YEL
Strip Wires
Trimming Tool
Copper Pipe
Mould
Mould
Copper Pipe
Bending
Upwards
Condensed
Water Pond
Ditch
Condensed Water
Pond
<
I719: A
>
When the meter reaches - 101KPa
(-76cmHg) during pumping, fully tighten
the shuttle.
Meter showing pressure
Closed
Manifold valve
Vacuum pump
Valve
Charge hose
Valve
Vacuum
pump
adapter
When pumping starts, slightly loosen the flare
nut to check of air sucked in. Then tighten the
flare nut.
Lo
Hi
