Precautions During Maintenance Operations - Johnson Controls CWP Manual De Instalación Y Mantenimiento

Safety
Prevention of other residual risks
make sure that the connections to the unit conform
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to the instructions provided in this manual and on
the unit's panelling
if you have to disassemble a piece, make sure that
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it has been properly mounted again before restart-
ing the unit
do not touch the delivery pipes from the compres-
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sor, the compressor and any other piping or com-
ponent inside the machine before wearing protec-
tive gloves
keep a fire extinguisher fir for electrical appliances
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near the machine
on the units installed indoor, connect the safety
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valve of the refrigeration circuit to a piping net-
work that can channel any overflowing refrigerant
outside
remove and leak of fluid inside and outside the unit
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collect the waste liquids and dry any oil spillage
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periodically clean the compressor compartment, to
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remove any fouling
do not store flammable liquids near the unit
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do not disperse the refrigerant and the lubricating
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oil into the environment
weld only empty pipes; do not approach flames or
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other sources of heat to refrigerant pipes
do not bend/hit pipes containing fluids under pres-
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sure
2.6 Precautions during maintenance
operations
Maintenance operations can be carried out by au-
thorised technicians only.
Before performing any maintenance operations:
disconnect the unit from the mains with the external
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disconnecting switch
place a warning sign "do not turn on - mainte-
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nance in progress" on the external disconnecting
switch
make sure that on-off remote controls are inhibited
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wear suitable personal protective equipment (hel-
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met, safety gloves, goggles and shoes etc.)
To carry out any measurements or checks which re-
quire the activation of the machine:
work with the electrical board open only for the
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necessary time
close the electrical board as soon as the measure-
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ment or check has been completed
The following precautions must be always adopted:
do not scatter the fluids of the refrigeration circuit
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in the surrounding environment
when replacing an eprom or electronic cards, use
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always suitable devices (extractor, antistatic
bracelet, etc.)
to replace a compressor, the evaporator, the con-
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densing coils or any other weighty element, make
sure that the lifting equipment is consistent with the
weight to be lifted
contact Itelco-Clima for any modifications to the re-
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frigeration, hydraulic or wiring diagram of the
unit, as well as to its control logics
contact Itelco-Clima if it is necessary to perform
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very difficult disassembly and assembly operations
use only original spare parts purchased directly
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from Itelco-Clima or the official retailers of the com-
panies on the recommended spare parts list
contact Itelco-Clima if it is necessary to handle the
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unit one year after its positioning on site or if you
wish to dismantle it.
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