When Connecting Refrigerant Tubing; When Servicing; Others - Panasonic S-22MU1E5A Technical Data Manual

When Connecting Refrigerant Tubing

• When performing piping
work do not mix air except
for specified refrigerant
(R410A) in refrigeration
cycle. It causes capacity
down, and risk of
explosion and injury due
to high tension inside the
WARNING
refrigerant cycle.
• Refrigerant gas leakage
may cause fire.
• Do not add or replace
refrigerant other than
specified type. It may
cause product damage,
burst and injury, etc.
• Ventilate the room well, 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 poisonous gas.
• Keep all tubing runs as short as
possible.
• Use the flare method for connecting
tubing.
• 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.
• 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) before opening
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 being serviced.
• This product must not be
WARNING
• Do not clean inside
• In case of malfunction
• Do not touch the air
CAUTION
• Ventilate any enclosed
• Confirm after installation

Others

CAUTION • Do not sit or step on
• Do not touch the air
• Do not stick any
iii
modified or disassembled
under any circumstances.
Modified or disassembled
unit may cause fire,
electric shock or injury.
the indoor and outdoor
units by users. Engage
authorized dealer or
specialist for cleaning.
of this appliance, do not
repair by yourself. Contact
the sales dealer or service
dealer for repair.
inlet or the sharp
aluminum fins of the
outdoor unit. You may get
injured.
areas when installing or
testing the refrigeration
system. Escaped refrigerant
gas, on contact with fire
or heat, can produce
dangerously toxic gas.
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
poisonous gas.
the unit, you may fall
down accidentally.
inlet or the sharp
aluminum fins of the outdoor
unit. You may get injured.
object into the FAN
CASE.
You may be injured
and the unit may be
damaged.