Receiving your unit
All units are shipped with a holding charge of Inert Gas inside at a low but positive pressure. Suitable
labeling is prominently displayed on both the unit and the packaging. Service connectors are provided
on the CDU service valve for the convenient checking of the integrity of the holding charge.
Caution
It is very important to check that this holding pressure exists at the time you receive each unit from us
or our authorized representatives. Please inform us or our authorized representative if the holding
charge is non-existent. Failure to do so could void the claim for other related system faults at a later
period. Transit damage is essentially an insurance claim and is not covered under manufacturing
defect. It is also advisable to inspect the rest of the unit for obvious physical damage and inform us or
our authorized representative in case any is discovered.
Rapid release of pressurised gas! Personal injuries! Units are factory charged with pressurised dry air
to between 1.5 and 2 bar to ensure no ingress of air or moisture during transit. Pressure must be safely
reduced prior to fully opening connections or removing blanking components.
System breakdown! Personal injuries! Systems without a full charge or with the service valves closed
should be electrically locked/tagged if left unattended. Only approved refrigerants and refrigeration
oils must be used. Never block the condenser fins, ensure continual airflow through the condenser.
High pressure! Injury to skin and eyes possible! Be careful when opening up a pressurized
component or system.
High pressure! Personal injuries! Use of safety relief valves according to EN 378 is mandatory.
Consider personal safety requirements and refer to test pressures prior to test.
Rotating machinery! Personal injuries! When the unit is running do not put your hand inside the unit
or remove the fan guard, protective covers etc. Electrically isolate the unit removing fuses before
working on the unit.
Warning
Conductor cables! Electrical shock! Shut off the power supply and remove all of the fuses before
working on the electrics.
Warning
Diesel effect! Compressor destruction! The mixture of air and oil at high temperature can lead to an
explosion. Avoid operating with air.
System explosion! Personal injuries! DO NOT USE other industrial gases.
Explosive flame! Burning! Oil/refrigerant mixtures are highly flammable. Remove all refrigerant
before opening the system. Never work with a naked flame on a refrigerant charged/pressurized
system.
Warning
High surface temperature! Burning! Do not touch the compressor or system pipe-work until they
have cooled down. Ensure that other materials in the area of the compressor do not get in contact
with it. Mark and secure accessible sections.
Low surface temperatures! Frostbite! Do not touch any surface or pipe-work of the system until they
are at room temperature. Mark and secure accessible sections.
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