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EN-8 8
Super Digital Inverter
2 ACCESSORY PARTS AND REFRIGERANT
Accesso
ry Parts
Part nameQ’ty Shape Usage
Outdoor unit installation manual 1
Hand this directly to the customer.
(For other languages that do not appear in this
Installation Manual, please refer to the enclosed
CD-R.)
Drain nipp
le1
Waterproof rubber cap 5
Protective bush 1 For protecting wires (pipe cover)
Guard material for passage part 1 For protecting passage part (pipe cover)
Clamp filter 1
For conforming to EMC standards
(Used for
power wire)
9 9-E
N
Super Digital Inverter
3
INSTALLATION OF NEW REFRIGERANT AIR
CONDITIONER
•The R410A refrigerant is more susceptible to impurities such as water, oxide membranes, oils, and fats.
With the adoption of the new refrigerant, the refrigerating oil has also been changed.
Be careful not to let water,
dust, conventional refrigerant, and/or conventional refrigerating oil enter the refrigerating cycle of
the new refrigerant air conditioner.
• To prevent different refrigerant or refrigerating oil from becoming mixed, the sizes of
the charging port of the unit and the
installation tool connection sections are different from those of the conventional refrigerant. Accordingly, the following
exclusive tools are required for the new refrigerant R
410A.
Req
uired 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
: Prepared newly (Use for R410A only. Do not use for refrigerant R22 or R407C etc.)
: Conventional tools/equipment are available
Tools/equipment UseHow to use tools/equipment
Gauge manifold
Vacuuming/
charging refrigerant
and operation check
Prepared newly for R410A only
Charging hose
Prepared newly for R410A only
Charging cylinder Can not be used
Unusable (Use the refrigerant charging measure
instead.)
Gas leak detector Gas leak check
Prepared
newly
Vacuum pump Vacuum drying Unusable
Vacuum pump with backflow
prevention function
Vacuum drying
R22 (Conventional tools)
Flare toolFlare machining of pipes
Usable if dimensions are adjusted.
Bender Bending pipes
R22 (Conventional tool
s)
Refrigerant recovery equipment Refrigerant recovery
For R410A only
Torque wrench Tightening flare nuts
Exclusive for Ø12.7 mm and Ø15.9 mm
Pipe cutter Cutting pipes
R22 (Conventional tools)
Welding machine and nitrogen
cyli
nder
Welding pipes
R22 (Conventional tools)
Refrigerant charging measure Charging refrigerant
R22 (Conventional tools)