iii
…In an Area with High Winds
Securely anchor the outdoor unit down 
with bolts and a metal frame. Provide a 
suitable air baffle.
…In a Snowy Area (for Heat Pump-
type Systems)
Install the outdoor unit on a raised 
platform that is higher than drifting snow. 
Provide snow vents.
When Connecting Refrigerant 
Tubing
Pay particular attention to refrigerant 
leakages.
 WARNING
• When performing piping work, 
do not mix air except for 
specified refrigerant (R410A) 
in refrigeration cycle. It causes 
capacity down, risk of explosion 
and injury due to high tension 
inside the refrigerant cycle.
• If the refrigerant comes in contact 
with a flame, it produces a toxic 
gas.
• Do not add or replace refrigerant 
other than specified type. It may 
cause product damage, burst and 
injury, etc.
• Ventilate the room immediately, in the 
event that is refrigerant gas leaks during 
the installation. Be careful not to allow 
contact of the refrigerant gas with a 
flame as this will cause the generation 
of toxic gas.
• Keep all tubing runs as short as 
possible.
• Apply refrigerant lubricant to the 
matching surfaces of the flare and union 
tubes before connecting them, then 
tighten the nut with a torque wrench for 
a leak-free connection.
• Check carefully for leaks before starting 
the test run.
•  When operating in emergency backup 
mode and switching from grid power to 
off-grid generator power or vice versa to 
provide power for the air conditioner, be 
sure to follow the guidelines below.
  Otherwise, the air conditioner may 
malfunction due to damage to the PCBs 
or other causes.
(1) The electrical waveform of the 
generator must be a distortion 
free sine wave that is within the 
frequency and voltage tolerances 
defined by the equipment 
specifications.
(2) When switching from grid power 
to off-grid generator power or 
vice versa, first reduce the supply 
voltage to 0V and confirm that the air 
conditioner has completely stopped 
before switching the power source.
When Transporting
• It may need two or more people to carry  
out the installation work.
• Be careful when picking up and moving 
the indoor and outdoor units. Get a 
partner to help, and bend your knees 
when lifting to reduce strain on your 
back. Sharp edges or thin aluminum 
fins on the air conditioner can cut your 
fingers.
When Installing…
Select an installation location which is 
rigid and strong enough to support or 
hold the unit, and select a location for 
easy maintenance.
…In a Room
Properly insulate any tubing run inside 
a room to prevent “sweating” that can 
cause dripping and water damage to 
walls and floors.
CAUTION
Keep the fire alarm and 
the air outlet at least  
1.5 m away from the unit.
…In Moist or Uneven Locations
Use a raised concrete pad or concrete 
blocks to provide a solid, level foundation 
for the outdoor unit. This prevents water 
damage and abnormal vibration.
00_300313_2WAY_Eng.indb   3 2017/12/14   13:47:28
Others
When disposal of the product, comply 
with national regulations.
 WARNING
• Do not sit or step on the unit. 
You may fall down accidentally
.
 
CAUTION
• Do not touch the air inlet or  
the sharp aluminum fins of the 
outdoor unit. You may get  
injured.
• Do not stick any object into the 
FAN CASE.  
You may be injured and the unit 
may be damaged.
• Do not leak refrigerant while piping work 
for an installation or re-installation, and 
while repairing refrigeration parts.  
Handle liquid refrigerant carefully as it 
may cause frostbite.
When Servicing
• Turn the power OFF at the main 
power box (mains), wait at least 10 
minutes until it is discharged, then 
open the unit to check or repair 
electrical parts and wiring.
• Keep your fingers and clothing away 
from any moving parts.
• Clean up the site after you finish, 
remembering to check that no metal 
scraps or bits of wiring have been left 
inside the unit.
 WARNING
• This product must not be 
modified or disassembled under 
any circumstances. Modified or 
disassembled unit may cause fire, 
electric shock or injury.
• Do not clean inside the indoor and 
outdoor units by users. Engage 
authorized dealer or specialist for 
cleaning.
• In case of malfunction of this 
appliance, do not repair by 
yourself. Contact to the sales 
dealer or service dealer for a repair 
and disposal.
 CAUTION
• Ventilate any enclosed areas when 
installing or testing the refrigeration 
system. Leaked refrigerant gas, 
on contact with fire or heat, can 
produce dangerously toxic gas.
• Confirm after installation that no 
refrigerant gas is leaking. If the gas 
comes in contact with a burning 
stove, gas water heater, electric 
room heater or other heat source, 
it can cause the generation of toxic 
gas.
00_300313_2WAY_Eng.indb   4 2017/12/14   13:47:28
SM830258-01_欧州向け_1fan_mini_VRF.indb   4 18/03/02   10:16:58