LG RCAW Operation & Maintenance Manual page 6

Safety Considerations
Changing the set value is prohibited.
• Do not change the set value of the safety device.
• If you operate the product with incorrectly set val-
ues, it can cause defect, fire or explosion.
• When you change the control setting value,
please consult with the specialized expert.
Follow all safety codes.
• When working on this equipment, observe pre-
cautions in the literature, and on tags, stickers,
and labels attached to the equipment, and any
other safety precautions that apply.
Shut off all power to this equipment during
installation and service.
• Electrical shock can cause personal injury and death.
• There may be more than one disconnect switch.
Tag all disconnect locations to alert others not to
restore power until work is completed.
Do not vent refrigerant relief valves within a building.
• Outlet from relief valves must be vented outdoors in accordance with the latest edition of ANSI/ASHRAE
(American National Standards Institute/American Society of Heating, Refrigeration and Air Conditioning
Engineers) 15 (Safety Code for Mechanical Refrigeration).
• The accumulation of refrigerant in an enclosed space can displace oxygen and cause asphyxiation.
• Provide adequate ventilation in enclosed or low overhead areas. Inhalation of high concentrations of
vapor is harmful and may cause heart irregularities, unconsciousness or death. Misuse can be fatal.
Vapor is heavier than air and reduces the amount of oxygen available for breathing. Refrigerant causes
eye and skin irritation.
Do not attempt to unbraze factory joints when
servicing this equipment. Cut lines with a tub-
ing cutter as required when performing ser-
vice.
• Compressor oil is flammable and there is no way
to detect how much oil may be in any of the refrig-
erant lines.
• Use a pan to catch any oil that may come out of
the lines and as a gage for how much oil to add to
system.
6 Chiller Air-cooled Screw
Electric shock prevention.
• When installing the freezer, always ground the
wire.
• It can cause electric shock.
Wear safety equipment.
• Wear safety glasses and work gloves.
• Use care in handling, rigging, and setting this equip-
ment, and in handling all electrical components.
Always run fluid through heat exchangers
when adding or removing refrigerant charge.
• It prevent potential damage to heat exchanger tubes.
• Use appropriate brine solutions in cooler fluid
loops to prevent the freezing of heat exchangers
when the equipment is exposed to temperatures
below 32°F(0°C).
Do not re-use compressor oil.
• It may cause damage to the product.