in the unit cabinet or on the fan assembly.
WARNING! Risk of hair, clothing and jewelry entanglement with high speed rotating fan blades.
Can cause equipment damage, serious injury or death. Keep hair, jewelry and loose clothing
secured and away from rotating fan blades during unit operation.
WARNING! Risk of improper wiring, piping, moving, lifting and handling. Can cause equipment
damage, serious injury or death. Installation and service of this equipment should be done only
by qualified personnel who have been specially-trained in the installation of air-conditioning
equipment and who are wearing appropriate, OSHA-approved PPE.
WARNING! Risk of contact with extremely hot and/or cold surfaces. Can cause injury. Verify that
all components have reached a temperature that is safe for human contact or wear appropriate,
OSHA-approved PPE before working within the electric connection enclosures or unit cabinet.
Perform maintenance only when the system is de-energized and component temperatures have
become safe for human contact.
WARNING! Certain circuits carry lethal voltages. Only professional technicians are allowed to
maintain the unit. Extra precautions should be taken when troubleshooting a live unit. Be
particularly careful troubleshooting with the unit’s power switched on.
WARNING! If jumpers are used for troubleshooting, make sure to remove the jumpers after
troubleshooting. If the connected jumpers are not removed, they may bypass certain control
functions causing damage to the equipment.
CAUTION: The center of gravity of the unit is inclined, therefore, when moving the unit adjust
the bearing position of the forklift or hand pallet truck.
CAUTION: Comply with the manufacturer’s instructions before and during maintenance. Failure
to observe this will result in the warranty becoming void. Adherence to the safety instructions is
mandatory to ensure personnel safety and prevent any environmental impact apart from
equipment damage. Unsuitable components will impede equipment performance and may
cause equipment shutdown. Therefore, Vertiv recommends the use of Vertiv OEM or
Vertiv-approved components.
CAUTION: Switch off the VRC1 unit and then switch off the power input during equipment
maintenance. Switch off the equipment power unless the testing devices need power.
CAUTION: Avoid touching or having skin contact with the residual gas and oils in the
compressor. Wear long rubber gloves to handle contaminated parts. The air conditioning system
contains refrigerant. The release of refrigerant is harmful to the environment.
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