Mini-Space Series Installation, Operation & Maintenance Manual

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Mini-Space Series Installation, Operation & Maintenance Manual1.4 Safety1.4.1 GeneralStulz Air Technology Systems, Inc. uses NOTESalong with CAUTION and WARNING symbolsthroughout this manual to draw your attention to importantoperational and safety information.A bold text NOTE marks a short message in the informationto alert you to an important detail.A bold text CAUTION safety alert appears with informationthat is important for protecting your equipmentand performance. Be especially careful to read andfollow all cautions that apply to your application.A bold text WARNING safety alert appears with informationthat is important for protecting you from harmand the equipment from damage. Pay very close attentionto all warnings that apply to your application.A safety alert symbol precedes a generalWA RNING or CAUTION safety statement.A safety alert symbol precedes an electricalshock hazard WARNING or CAUTION safety statement.1.4.2 Safety SummaryThe following statements are general guidelines followedby warnings and cautions applicable throughoutthe manual.Prior to performing any installation, operation,m a intenance or troubleshooting procedure read andunderstand all instructions, recommendations andguidelines contained within this manual.Never operate the unit with any cover, guard,screen panel, etc. removed unless the instructionss p ecifically state otherwise, then do so with extremecaution to avoid personal injury.Never lift any component in excess of 35 poundswithout help. If a lifting device is used to move a unit,ensure it is capable of supporting the unit.Always disconnect the main power supply to theequipment at the main power disconnect switchbefore beginning work on the equipment. A lock-outtag-out procedure should be followed to ensure thatpower is not inadvertently reconnected.Never work on electrical equipment unless anotherperson, who is familiar with the operation and hazardsof the equipment and competent in administeringfi rst aid, is nearby.All personnel working on or near equipment shouldbe familiar with hazards associated with electricalmaintenance. Safety placards/stickers have beenplaced on the unit to call attention to all personal andequipment damage hazard areas.Certain maintenance or cleaning procedures maycall for the use and handling of chemicals, solvents,or cleansers. Always refer to the manufacturer’sMaterial Safety Data Sheet (MSDS) prior to usingthese materials. Clean parts in a well-ventilated area.Avoid inhalation of solvent fumes and prolongedexposure of skin to cleaning solvents. Wash exposedskin thoroughly after contact with solvents.WARNINGThis equipment should be serviced and repairedby journeyman, refrigeration mechanicor an air conditioning technician.WARNINGThis unit employs high voltage equipment withrotating components. Exercise extreme care toavoid accidents and ensure proper operation.WARNINGHazardous voltage will still be present insidethe electric box at the motor start protectorsand circuit breakers, even with the unit turnedoff at the microprocessor controller. To isolatethe unit for maintenance, turn off power at themain power disconnect switch. Always disconnectmain power prior to performing any serviceor repairs.When working on electrical equipment, remove alljewelry, watches, rings, etc.1-4(©April, 2008)Air Technology Systems, Inc.
Mini-Space Series Installation, Operation & Maintenance ManualWARNINGRefrigerant (R22 or R407C) is used with thisequipment. Death or serious injury may result ifpersonnel fail to observe proper safety precautions.Great care must be exercised to preventcontact of liquid refrigerant or refrigerant gas,discharged under pressure, with any part of thebody. The extremely low temperature resultingfrom the rapid expansion of liquid refrigerantor pressurized gas can cause sudden and irreversibletissue damage.As a minimum, all personnel should wear thermalprotective gloves and face-shield/goggleswhen working with refrigerant. Application ofexcessive heat to any component will causeextreme pressure and may result in a rupture.CAUTIONDo not use cleaning solvents near open fl ameor excessive heat. Wear eye protection whenblowing solvent from parts. The pressure-washshould not exceed 30 psig. Solvent solutionsshould be disposed of in accordance with localand state regulatory statutes.CAUTIONThe unit must be kept in its normal installedp o sition when moving. If the unit is not keptlevel and vertical, damage to the compressorwill result.Exposure of refrigerant to an open fl ame or avery hot surface will cause a chemical reactionthat will form carbonyl chloride (hydrochloric/hydrofluoricacid), a highly poisonous and corrosivegas commonly referred to as PHOSGENE.In its natural state, refrigerant is a colorless,odorless vapor with no toxic characteristics. Itis heavier than air and will disperse rapidly ina well-ventilated area. In an unventilated area,it presents a danger as a suffocant.WARNINGWhen performing soldering or de-solderingoperations, make certain the refrigerations y stem is fully recovered and purged and drynitrogen is flowing through the system at the rateof not less than 1-2 CFM (0.03-0.06M³/minute).CAUTIONWhen the air conditioner is in the cooling mode,the return air-intake and discharge (supply) mustbe free of obstructions. Ensure access panels/doors are secure and latched into position.(©April, 2008)1-5Air Technology Systems, Inc.
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Mini-Space Series Installation, Operation & Maintenance Manual

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