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installer, in order to protect from safety devices exhausting it is not allowed to remove the protections while the unit
is in operation and to approach the unit without wearing the right protections. In case of accidental contact with
refrigerant due to the safety valves exhaust it is necessary to follow the above indicated.
-
carry out the plant connections to the unit by following the indications reported on the following manual and on
the panels of the unit itself.
-
if a part is disassembled, make sure that it is correctly reassembled before restarting the unit.
-
do not touch the discharge line of the compressor, the compressor itself or any other tube or component which
is inside the machine without putting on protective gloves.
-
keep a fire extinguisher which is able to put out fires on electrical equipment near the machine.
-
in the event of fire either if it originates on the unit or near it make sure the power supply to the unit is promptly cut and
that any person who might be near the unit at that moment is moved to a secure location
-
on units installed inside, connect the refrigerant circuit shut off valve to a network of tubes which are able to
lead the possible spillage of refrigerating fluid outside.
-
eliminate any fluid loss inside or outside the unit.
-
collect the discharge liquid and clean up any possible oil leakage.
-
periodically clean the compressor casing of the accumulated dirt deposits.
-
do not keep inflammable liquids near the unit.
-
do not dispose of the refrigerant fluid and the lubricating oil in the environment.
-
welding should only be carried out on empty tubes; do not approach the tubes containing refrigerant fluid with
flames or other sources of heat.
-
do not bend or strike tubes containing pressurized fluids.
i. PRECAUTIONS TO BE OBSERVED DURING MAINTENANCE OPERATIONS
Only authorised technicians may carry out maintenance operations. Before carrying out any maintenance the
following must be performed:
-
isolate the unit from the mains electricity by using the external knife switch.
-
place a notice on the external knife switch which says
“do not use - maintenance in progress”
.
-
make sure that any possible on-off commands are disabled.
-
use appropriate safety equipment (helmet, isolating gloves, protective glasses, safety shoes etc.).
If measurements or controls must be carried out which require the machine to be running the following
observations must be followed:
-
operate with the electrical panel open for as short a time as is possible.
-
close the electrical panel as soon as the individual measurement or control has been carried out.
-
for units which are located outside, do not carry out interventions in dangerous atmospheric conditions such as
rain, snow, fog etc.
The following precautions should also be taken at all times:
-
never dispose of fluids contained in the refrigerant circuit into the environment.
-
when replacing the electronic card always use appropriate equipment (extractor, anti-static bracelet, etc.).
-
if a compressor, evaporator, coil or any other heavy part is to be replaced, make sure that the lifting equipment
matches the weight to be lifted.
-
if the unit has an independent compressor compartment, do not open the ventilator compartment without
having first isolated the machine using the knife switch on the side of the panel and only after having placed a sign
which says “do not use - maintenance in progress”.
-
if modifications must be carried out to the cooling, hydraulic or electrical circuit of the unit, as well as to its
command logic, contact Trane.
-
if particularly complicated assembly or disassembly operations are to be carried out contact Trane.
-
always use original spare parts bought directly from Trane or from official dealers of the companies reported in
the list of recommended spare parts.
-
if the unit is to be moved after a year of being in the site or if it has to be dismantled contact Trane.
Summary of Contents for FLEX HP HT
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