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Drainage
1. Run the drain hose slopping downward.
NOTE
• The hole should be made at a slight downward slant on the outdoor side.
• The drain is internally trapped. An external trap is not required.
Do not rise the
drain hose.
2 in.
(50 mm)
or more
2. Put water in the drain pan and make sure that the water is drained out.
3. When connecting an extension drain hose, insulate it with shield pipe.
Shield pipe
Inside the room
Drain hose
CAUTION
Arrange the drain pipe for proper drainage from the unit.
Improper drainage can result in dew-dropping.
This air conditioner has the structure designed
to drain water collected from dew, which forms
on the back of the indoor unit, to the drain pan.
Therefore, do not store the power cord and other
parts at a height above the drain guide.
Evacuating
After the piping has been connected to the indoor unit, you can vacuum both
units at once.
VACUUMING
Evacuate the air in the connecting pipes and in the indoor unit using a
vacuum pump. Do not re-use the refrigerant in the outdoor unit. For details,
see the vacuum pump manual.
Using a vacuum pump
Be sure to use a vacuum pump with counter-fl ow prevention function so
that inside oil of the pump does not fl ow backward into pipes of the air
conditioner when the pump stops.
(If oil inside of the vacuum pump enters the air conditioner, which uses
R410A, refrigeration cycle trouble may happen.)
1. Connect the charge hose from the manifold valve to the service port of
the packed valve at the gas side.
2. Connect the charge hose to the port of the vacuum pump.
3. Open fully the low pressure side handle of the manifold valve gauge.
4. Operate the vacuum pump to start evacuating. Confi rm that the
compound pressure gauge reading is –101 kPa (–76 cmHg) and
500 microns or lower.
5. Close the low pressure side valve handle of the manifold valve gauge.
1110651824-2 EN.indd 11
1110651824-2 EN.indd 11
Do not form the
drain hose into
a wavy shape.
Do not put the
Do not put the
drain hose end
drain hose end
into water.
in the drainage ditch.
Extension drain hose
Wall
Drain
guide
Space for pipes
EVACUATING
EVACUATING
Remote control
• Place the remote control away from obstacles (such as curtain) that may
block the signal coming from the remote control.
• Do not install the remote control in a place exposed to direct sunlight or
close to a heating source such as a stove.
• Keep the remote control at least 3.3 ft (1 m) apart from the nearest TV set
or stereo equipment. (This is necessary to prevent image disturbances or
noise interference.)
• The location of the remote control should be determined as shown below.
(Side view)
Remote
Reception
control
range
Remote Control A-B Selection
In case of two systems operating nearby, follow the instructions below to set
the remote control to operate with one indoor unit at a time.
Remote Control B Setup.
1. Press RESET button on the indoor unit to turn the air conditioner ON.
2. Point the remote control at the indoor unit.
3. Push and hold CHK
button on the Remote Control with the tip of a
●
pencil. "00" will be shown on the display.
MODE
4. Press
while pushing CHK
"00" will disappear and the air conditioner will turn OFF. B is now
memorized.
Note: 1. Repeat above step to reset Remote Control back to A.
2. Remote Control does not display "A".
3. Default setting of Remote Control from factory is A.
"B" Display
"00" Display
6. Open fully the valve stem of the packed valves (both gas and liquid
sides).
7. Remove the charging hose from the service port.
8. Securely tighten the packed valves cap.
Compound pressure gauge
–101 kPa
(–76 cmHg)
Handle Lo
Charge hose
(For R410A only)
Connecting pipe
Packed valve at
liquid side
Service port (Valve core
Packed valve at gas side
(Setting pin))
11
(Top view)
Indoor unit
Remote
control
●
. "B" will show on the display and
Pressure gauge
Manifold valve
Handle Hi
(Keep full closed)
Charge hose
(For R410A only)
Vacuum pump adapter for
counter-fl ow prevention
(For R410A only)
Vacuum
pump
12/13/13 4:58 PM
12/13/13 4:58 PM
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