No gas leakage?
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.
from the service port, open 2-way valve and 3-way. Turn
Detach the charge hose
the valve rod anticlockwise until hitting lightly.
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.
2-way valve Liquid Side
3-way valve Gas Side
Anti countercurrent joint
Vacuum pump(for R410A)
2-way valve 3-way valve
If the refrigerant of the air conditioner leaks, it is necessary to discharge all the
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
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
The power source must be exclusively used for air conditioner. (Over I0A)
In the case of installing an air conditioner in a moist place, please install an ea-
rth leakage breaker.
For installation in other places, use a circuit breaker as far as possible.
Cutting and Flaring Work of Piping
Pipe cutting is carried out with a pipe cutter and burs must be removed.
After inserting the ﬂare nut, ﬂaring work is carried out.
Flare tool for R410A
clutch-type(Rigid-type) Wing-nut type (Imperial-type)
Flare tooling die
3.Insert the ﬂare nut
Damage of ﬂare Crack
Valve rod cap
Valve rod cap
Service port cap
Conventional ﬂare tool
Please install the drain hose so as to be downward slope without fail.
Please don't do the drainage as shown below.
The end is imm-
ersed in water.
Please pour water in the drain pan of the indoor unit, and conﬁrm that drainage
is carried out surely to outdoor.
In case that the attached drain hose is in a room, please apply heat insulation to
it without fail.
Refrigerant charge label
Contains fluorinated greenhouse gases
covered by the Kyoto Protocol
This product contains fluorinated greenhouse gases covered by
the Kyoto Protocol. Do not vent into the atmosphere.
GWP=global warming potential
Please fill in with indelible ink,
the factory refrigerant charge of the product
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
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
Check for Installation and Test Run
Please kindly explain to our customers how to operate
through the instruction manual.
Check Items for Test Run
Put check mark
Gas leak from pipe connecting?
Heat insulation of pipe connecting?
Are the connecting wirings of indoor and outdoor ﬁrmly
inserted to the terminal block?
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?
The gap with the
There is the bad
ground is too small.
smell from a ditch