CyberOne EC DX IOM Manual
1.3.2
Safety Summary
The following statements are general guidelines followed by
warnings and cautions applicable throughout the manual.
Prior to performing any installation, operation, maintenance
or troubleshooting procedure, read and understand all
instructions, recommendations and guidelines contained
within this manual. All maintenance and/or repairs must be
performed by a journeyman, refrigeration mechanic or an air
conditioning technician.
CAUTIONS
Never lift any component in excess of 35 pounds
without help. If a lifting device is used to move a
unit, ensure it is capable of supporting the unit.
When moving the unit it must be kept in its
normal installed position. If the unit is not kept
level and vertical, damage to the compressors
will result.
When the air conditioner is in the cooling mode,
the return air-intake and discharge (supply) must
be free of obstructions. Ensure panels are secure
and latched into position.
WARNING
Never operate the unit with any cover, guard,
screen panel, etc., removed unless the instructions
specifically state otherwise, then do so with
extreme caution to avoid personal injury.
CAUTION
Never work on electrical equipment unless
another person, who is familiar with the operation
and hazards of the equipment and competent in
administering first aid, is nearby.
WARNINGS
All personnel working on or near equipment should
be familiar with hazards associated with electrical
maintenance. Safety placards/stickers have been
placed on the unit to call attention to all personal
and equipment damage hazard areas.
WARNINGS
When working on electrical equipment, remove all
jewelry, watches, rings, etc.
Hazardous voltage will still be present inside the
electric box at the motor start protectors and
circuit breakers, even with the unit turned off at
the microprocessor controller. To isolate the unit
for maintenance, turn off power at the main power
disconnect switch. Always disconnect main power
prior to performing any service or repairs.
A lock-out tag-out procedure should be followed to
ensure that power is not inadvertently reconnected.
To prevent personal injury, stay clear of rotating
components as automatic controls may start them
unexpectedly. Turn off power to the unit unless
you are performing tests that require power. With
power and controls energized, the unit could begin
operating at any time.
WARNING
Refrigerant (R407C) is used with this equipment.
Death or serious injury may result if personnel fail
to observe proper safety precautions. Great care
must be exercised to prevent contact of liquid
refrigerant or refrigerant gas, discharged under
pressure, with any part of the body. The
extremely low temperature resulting from the rapid
expansion of liquid refrigerant or pressurized gas
can cause sudden and irreversible tissue damage.
As a minimum, all personnel should wear thermal
protective gloves and face-shield/goggles when
working with refrigerant. Application of excessive
heat to any component will cause extreme pressure
and may result in a rupture.
Exposure of refrigerant to an open flame or a very
hot surface will cause a chemical reaction that will
form carbonyl fluoride, a highly poisonous and
corrosive gas commonly referred to as
fluorophosgene. In its natural state, refrigerant is
a colorless, odorless vapor with no toxic
characteristics. It is heavier than air and will
disperse rapidly in a well-ventilated area. In an
unventilated area, it presents a danger as a
suffocant.
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