Airwell AQC 40-75, Руководство по установке и обслуживанию

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English
2 - Safety
n
periodically check the board’s internal wiring
n
do not use cables having an inadequate section or flying
connections, even for limited periods of time or in an emergency
Prevention of other residual risks
n
make sure that the connections to the unit conform to the
instructions provided in this manual and on the unit’s panelling
n
if you have to disassemble a piece, make sure that it has been
properly mounted again before restarting the unit
n
do not touch the delivery pipes from the compressor, the
compressor and any other piping or component inside the
machine before wearing protective gloves
n
keep a fire extinguisher fir for electrical appliances near the
machine
n
on the units installed indoor, connect the safety valve of the
refrigeration circuit to a piping network that can channel any
overflowing refrigerant outside
n
remove and leak of fluid inside and outside the unit
n
collect the waste liquids and dry any oil spillage
n
periodically clean the compressor compartment, to remove any
fouling
n
do not store flammable liquids near the unit
n
do not disperse the refrigerant and the lubricating oil into the
environment
n
weld only empty pipes; do not approach flames or other sources
of heat to refrigerant pipes
n
do not bend/hit pipes containing fluids under pressure
2.6 Precautions during maintenance operations
Maintenance operations can be carried out by authorised technicians
only.
Before performing any maintenance operations :
n
disconnect the unit from the mains with the external disconnecting
switch
n
place a warning sign “do not turn on - maintenance in progress”
on the external disconnecting switch
n
make sure that on-off remote controls are inhibited
n
wear suitable personal protective equipment (helmet, safety
gloves, goggles and shoes etc.)
To carry out any measurements or checks which require the
activation of the machine :
n
work with the electrical board open only for the necessary time
n
close the electrical board as soon as the measurement or check
has been completed
n
for outdoor units, do not carry out any operations in the presence
of dangerous climatic conditions (rain, snow, mist etc.)
The following precautions must be always adopted :
n
do not scatter the fluids of the refrigeration circuit in the
surrounding environment
n
when replacing an eprom or electronic cards, use always suitable
devices (extractor, antistatic bracelet, etc.)
n
to replace a compressor, the evaporator, the condensing coils or
any other weighty element, make sure that the lifting equipment is
consistent with the weight to be lifted
n
in air units with independent compressor compartment, do not
access the fan compartment unless you have disconnected the
machine by the disconnecting switch on the board and you have
placed a warning sign “do not turn on - maintenance in progress”
n
contact manufacturer for any modifications to the refrigeration,
hydraulic or wiring diagram of the unit, as well as to its control
logics
n
contact manufacturer if it is necessary to perform very difficult
disassembly and assembly operations
n
use only original spare parts purchased directly from manufacturer
or the official retailers of the companies on the recommended
spare parts list
n
contact manufacturer if it is necessary to handle the unit one year
after its positioning on site or if you wish to dismantle it.