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Cautions for outdoor unit installation space
• In the event that the outdoor unit is installed in a small space
and refrigerant leaks, accumulation of highly concentrated
refrigerant may cause a fi re hazard. Therefore, be sure to follow
the installation space instructions in the Installation Manual, and
provide open space on at least one of the four outdoor unit sides.
• In particular, when both the discharge and intake sides face walls
and obstacles are also placed on both sides of the outdoor unit,
take steps to provide space wide enough for a person to pass
(600 mm or more) on one side to prevent leaked refrigerant from
accumulating.
Obstacle
600 mm or more
To disconnect the appliance from main power supply
• This appliance must be connected to the main power supply by
means of a switch with a contact separation of at least 3 mm.
Do not wash air conditioners with pressure washers
• Electric leaks may cause electric shocks or fi res.
Building or wall
Outdoor unit
Obstacle
Building or wall
1
Accessory parts
Part name
Q'ty
Installation Manual
1
Drain nipple
1
Waterproof rubber cap
2
Safety Manual
1
2
Installation of R32 refrigerant
air conditioner
CAUTION
R32 refrigerant air conditioner installation
This air conditioner adopts the HFC refrigerant (R32) which does not destroy ozone layer.
Therefore, during installation work, make sure that water, dust, former refrigerant, or refrigerant oil does not enter
the R32 refrigerant air conditioner cycle. To prevent mixing of refrigerant or refrigerant oil, the sizes of connecting
sections of charge port on the main unit and installation tools are different from those of the conventional
refrigerant units.
Accordingly, special tools are required for the R32 or R410A refrigerant units. For connecting pipes, use new and
clean piping materials with high pressure fittings made for the R32 or R410A only, so that water and/or dust does
not enter.
When using existing piping, refer to "14 Appendix".
Required Tools/Equipment and Precautions for use
Prepare the tools and equipment listed in the following table before starting the installation work.
Newly prepared tools and equipment must be used exclusively.
Legend
: Conventional tools (R32 or R410A)
: Prepared newly (Use for R32 only)
Tools / equipment
Gauge manifold
Vacuuming / charging refrigerant
and operation check
Charging hose
Charging cylinder
Can not be used
Gas leak detector
Charging refrigerant
– 2 –
Shape
Usage
Booklet
For hand this directly to the customer.
For hand over directly to the customer.
Use
How to use tools / equipment
Conventional tools (R410A)
Conventional tools (R410A)
Unusable (Use the electronic refrigerant charging
scale)
Conventional tools (R32 or R410A)
EN
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