Midea LSBLG255/MZ, Техническое и сервисное руководство

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MCAC-CTSM-2014-03 DX type water-cooled screw chiller (PCB Control)
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Do not siphon refrigerant. Avoid spilling liquid refrigerant on skin or splashing it into the eyes. Use
safety goggles. Wash any spills from the skin with soap and water. If liquid refrigerant enters the eyes,
immediately and abundantly flush the eyes with water and consult a doctor.
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Never apply an open flame or live steam to a refrigerant container. Dangerous overpressure can
result. If it is necessary to heat refrigerant, use only warm water.
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During refrigerant removal and storage operations follow applicable regulations. These regulations,
permitting conditioning and recovery of halogenated hydrocarbons under optimum quality conditions for
the products and optimum safety conditions for people, property and the environment.
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Any refrigerant transfer and recovery operations must be carried out using a transfer unit. The units
must never be modified to add refrigerant and oil charging, removal and purging devices. All these
devices are provided with the units. Please refer to the certified dimensional drawings for the units.
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Do not re-use disposable (non-returnable) cylinders or attempt to refill them. It is dangerous and
illegal. When cylinders are empty, evacuate the remaining gas pressure, and move the cylinders to a
place designated for their recovery. Do not incinerate.
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Do not attempt to remove refrigerant circuit components or fittings, while the machine is under
pressure or while it is running. Be sure pressure is at 0 kPa before removing components or opening a
circuit.
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Do not attempt to repair or recondition any safety devices when corrosion or build-up of foreign
material (rust, dirt, scale, etc.) is found within the valve body or mechanism.
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If necessary, replace the device. Do not install safety valves in series or backwards.
ATTENTION:
No part of the unit must be used as a walkway, rack or support. Periodically check and
repair or if necessary replace any component or piping that shows signs of damage. The refrigerant lines
can break under the weight and release refrigerant, causing personal injury. Do not climb on a machine.
Use a platform, or staging to work at higher levels.
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Use mechanical lifting equipment (crane, hoist, winch, etc.) to lift or move heavy components. For
lighter components, use lifting equipment when there is a risk of slipping or losing your balance.
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Use only original replacement parts for any repair or component replacement.
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Do not drain water circuits containing industrial brines, without informing the technical service
department at the installation site or a competent body first.
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Close the entering and leaving water shut off valves and purge the unit water circuit, before working
on the components installed on the circuit (screen filter, pump, water flow switch, etc.).
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Do not close the water box bolts until the water boxes have been completely drained.
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Periodically inspect all valves, fittings and pipes of the refrigerant and hydraulic circuits to ensure
that they do not show any corrosion or any signs of leaks.
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It is recommended to wear ear defenders, when working near the unit and the unit is in operation.