for gaugemanifold. Then connect the projection of charge hose (center) for gau-
gemanifold into vacuum pump.
Open the handle at Iow in
2.
gaugemanifold, operate vacuum pump. If the scale-
moves of gause (Iow) reach vacuum condition in a moment, check 1. again.
Vacuumize for over 15min.And check the level gauge which should read -0.1MPa
3.
(76 cm Hg) at Iow pressure side. After the completion of vacuumizing, close the
handle ‘Lo’ in gaugemanifold and stop the operation of the vacuum pump. Check
condition of the scale and hold it for 1- min. If the scale-moves back in spite of
tightening, make flaring work again, the return to the beginning of 3 .
Open
Open the valve rod for the 2-way valve to an angle of
4.
anticlockwise 90 degrees.
After 6 seconds, close the 2-way valve and make the inspection of gas leakage.
No gas leakage?
5.
Detach the charge hose
6.
from the service port, open 2-way valve and 3-way. Turn
the valve rod anticlockwiseuntil hitting lightly.
In case of gas leakage, tighten parts of pipe connection. If
leakage stops, then proceed 6. steps
If it does not stop gas leakage, discharge whole refrigerants from the service
port. After flaring work again and vacuumize, fill up prescribed
refrigerant from the gas cylinder.
Anti countercurrent joint
Gaugemanifold(for R410A)
2-way valve Liquid Side
3-way valve Gas Side
Vacuum pump(for R410A)
Tube(for R410A)
Close
2-way valve
3-way valve
Open 90
O
2-way valve
3-way valve
2-way valve 3-way valve
2-way valve
3-way valve
Valve rod cap
Valve rod cap
Service port cap
To prevent the gas leakage, turn the service port’s cap, the valve rod’s cap for 2-way
valve and 3-way’s a little more than the point where the torque increases suddenly.
After attaching the each caps, check the gas leakage around the caps.
7.
8.
Step 1.
Step 2.
Step 3.
Step 7.
Step 6.
Step 4.
The power source must be exclusively used for air
ƽ
conditioner. (Over I0A)
In the case of installing an air conditioner in a moist place,
ƽ
please install an ea-
For installation in other places, use a circuit breaker as far
ƽ
as possible.
Pipe cutting is carried out with a pipe cutter and burs must
ƽ
be removed.
After inserting the flare nut, flaring work is carried out.
ƽ
If the refrigerant of the air conditioner leaks, it is necessary to discharge all the
ƽ
refrigerant. Vacuumize first, then charge the liquid refrigerant into air conditio-
ner according to the amount marked on the name plate.
Please do not let other cooling medium, except specified one (R410A), or air
ƽ
enter into the cooling circulation system. Otherwise, there will be abnormal
high pressure in the system to make it crack and lead to personal injuries.
Power Source Installation
Cutting and Flaring Work of Piping
CAUTION
Flare tool for R410A
Conventional flare tool
Clutch-type
clutch-type(Rigid-type) Wing-nut type (Imperial-type)
A
0~0.5mm
1.0~1.5mm
1.5~2.0mm
rth leakage breaker.
Lean
Damage of flare
Crack
Partial
Too outside
Correct
Incorrect
On Drainage
It becomes
high midway.
The gap with the
ground is too small.
There is the bad
smell from a ditch
It waves.
The end is imm-
ersed in water.
Please install the drain hose so as to be downward slope without fail.
Please don’t do the drainage as shown below.
ƽ
ƽ
Please pour water in the drain pan of the indoor unit, and
ƽ
is carried out surely to outdoor.
In case that the attached drain hose is in a room, please
ƽ
apply heat insulation to
Less than
5cm
confirm that drainage
it without fail.
4
Check Items for Test Run
Put check mark
in boxes
Gas leak from pipe connecting?
Heat insulation of pipe connecting?
Are the connecting wirings of indoor and outdoor firmly
Is the connecting wiring of indoor and outdoor firmly fixed?
Is drainage securely carried out?
Is the earth line securely connected?
Is the indoor unit securely fixed?
Is power source voltage abided by the code?
Is there any noise?
Is the lamp normally lighting?
Are cooling and heating (when in heat pump) performed normally?
Is the operation of room temperature regulator normal?
Please kindly explain to our customers how to operate
through the instruction manual.
Check for Installation and Test Run
Ƶ
inserted to the terminal block?
Ƶ
1
1+2=
kg
R410A
2
kg
2=
1=
B
C
D
F
E
kg
A
This product contains fluorinated greenhouse gases covered by
the Kyoto Protocol. Do not vent into the atmosphere.
Refrigerant type:R410A
GWP* value:1975
GWP=global warming potential
Please fill in with indelible ink,
• 1 the factory refrigerant charge of the product
• 2 the additional refrigerant amount charged in the field and
• 1+2 the total refrigerant charge
on the refrigerant charge label supplied with the product.
The filled out label must be adhered in the proximity of the product
charging port (e.g. onto the inside of the stop value cover).
A contains fluorinated greenhouse gases covered by the Kyoto
Protocol
B factory refrigerant charge of the product: see unit name plate
C additional refrigerant amount charged in the field
D total refrigerant charge
E outdoor unit
F refrigerant cylinder and manifold for charging
Contains fluorinated greenhouse gases
covered by the Kyoto Protocol
Refrigerant charge label
Ƶ
Flare tooling die
1.Cut pipe
2.Remove burs
3.Insert the flare nut
4.Flare pipe
Check Items for Test Run
