Daikin RMXS-L Series Service Manual page 9

• Do not touch the refrigerant pipes during and
immediately after operation for any repair work as
the refrigerant pipes may be hot or cold, depending
on the condition of the refrigerant flowing through
the refrigerant piping, compressor, and other
refrigerant cycle parts. Your hands may suffer burns
• All welding and cutting operations must be done in a
well-ventilated place. Welding and cutting
operations done in an enclosed room may cause
deficiency in oxygen in the enclosed room.
• Dismantling of the unit, disposal of refrigerant, oil,
and additional parts, should be done in accordance
with the relevant local, state, and national
regulations.
1.2 After Repairs
WARNING
• Use an exclusive power circuit for the equipment.
Insufficient circuit amperage capacity could cause
an electrical shock or fire.
• Use specified cable to connect indoor and outdoor
units. Make the connections securely, and route the
cable properly so that there is no force pulling the
cable a the connection terminals. Improper
connections could cause excessive heat generation
or fire.
• Securely fasten the outdoor unit terminal cover
(panel). If the terminal cover/panel is not fastened
properly, dust or water could enter the outdoor unit
causing fire or electric shock.
• Do not damage or modify the power cable. Damaged
or modified power cables could cause an electrical
shock or fire. Placing heavy items on the power
cable could damage the cable.
• Do not charge air or gas other than the specified
refrigerant to the refrigerant system. If air enters the
refrigerant system, it could cause excessive high
pressure resulting in equipment damage and injury.
• If refrigerant gas leaks, locate the leaking point and
repair it before charging refrigerant. After charging
the refrigerant, check for refrigerant leaks. If the
leaking pint cannot be located and the repair work
must be stopped, perform a pump-down. Close the
service valve to prevent the refrigerant gas from
leaking into the room. the refrigerant gas itself is
harmless, but it could generate toxic gases if it
comes into contact with flames.
• After replacing the battery in the remote controller,
dispose of the old battery to prevent children from
swallowing it. If a child swallows the battery, consult
with a doctor immediately.
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1.3 Inspections after Repairs
WARNING
• If the unit has a power cable plug and it is dirty, clean
the plug before securely inserting it into a power
outlet. If the plug has a loose connection, tighten it or
it could cause electrical shock or fire.
• If the power cable and lead wires have scratches or
are deteriorated, replace them. Damaged cable and
wires could cause an electrical shock, excessive
heat generation, or fire.
• Do not use a joined power cable or extension cable,
or share the same power outlet with other electrical
appliances as it could cause an electrical shock,
excessive heat generation, or fire.
• Check if parts and wires are mounted and connected
properly and if the connections at the soldered or
crimped terminals are secure. Improper installation
and connection could cause and electrical shock,
excessive heat generation, or fire.
• Measure the insulation resistance after the repair.
The resistance must be 1M
insulation could cause an electrical shock.
CAUTION
• Check the drainage of the indoor unit after the repair.
Faulty drainage may cause the water to enter the
room resulting in wet floors and furniture.
1.4 Safety for Users
DANGER
• Never attempt to modify the equipment. Doing so will
cause electrical shock, excessive heat generation, or
fire.
WARNING
• Never remove the fan guard of the unit while the unit
is operating. A fan rotating at high speed without the
fan guard is very dangerous.
CAUTION
• Before cleaning the unit, stop the operation of the
unit by turning the power off or by pulling the power
cord out from its socket. Otherwise, an electrical
shock or injury may result.
NOTE
• Do note wipe the controller operation panel with
benzene, thinner, chemical dust cloths, or similar.
The panel may get discolored or the coating can peel
off. if it is extremely dirty, soak a cloth in a water-
diluted neutral detergent, squeeze it well, and wipe
the panel clean. Then wipe it with another dry cloth.
Safety Considerations
or higher. Faulty
Safety Considerations