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Section 1. Safety <br /> This information is intended for use by individuals LIVE ELECTRICAL COMPONENTS! <br /> possessing adequate backgrounds of electrical and During installation, testing, servicing, and trouble- <br /> mechanical experience.Any attempt to repair a central shooting of this product, it may be necessary to work <br /> air conditioning product may result in personal injury with live electrical components. Failure to follow all <br /> and/or property damage.The manufacture or seller electrical safety precautions when exposed to live <br /> cannot be responsible for the interpretation of this electrical components could result in death or serious <br /> information, nor can it assume any liability in connec- injury. <br /> tion with its use. <br /> - If using existing refrigerant lines make certain that all <br /> These units use R-410A refrigerant which operates joints are brazed, not soldered. <br /> at 50 to 70% higher pressures than R-22. Use only <br /> R-410A approved service equipment. Refrigerant cyl- <br /> inders are painted a"Rose"color to indicate the type <br /> of refrigerant and may contain a"dip"tube to allow Scroll compressor dome temperatures may be hot. Do <br /> for charging of liquid refrigerant into the system.All not touch the top of compressor; it may cause minor to <br /> R-410A systems use a POE oil that readily absorbs severe burning. <br /> moisture from the atmosphere.To limit this"hygro- <br /> scopic"action, the system should remain sealed <br /> whenever possible. If a system has been open to the <br /> atmosphere for more than 4 hours, the compressor oil <br /> must be replaced. Never break a vacuum with air and <br /> always change the driers when opening the system <br /> for component replacement. For specific handling <br /> concerns with R-410A and POE oil reference Retrofit <br /> Bulletins SS-APG006-EN and APP-APG011-EN. <br /> UNIT CONTAINS R-410A REFRIGERANT! <br /> R-410A operating pressures exceed the limit of R-22. <br /> Proper service equipment is required. Failure to use <br /> proper service tools may result in equipment damage <br /> or personal injury. <br /> SERVICE <br /> USE ONLY R-410A REFRIGERANT AND AP- <br /> PROVED POE COMPRESSOR OIL. <br /> Extreme caution should be exercised when opening <br /> the Liquid Line Service Valve.Turn counterclockwise <br /> until the valve stem just touches the rolled edge. No <br /> torque is required. Failure to follow this warning will <br /> result in abrupt release of system charge and may <br /> result in personal injury and/or property damage. <br /> 2 18-BC108D1-1 B-EN <br />