Carrier W4A5S Installation Instructions Manual

Carrier W4A5S Installation Instructions Manual Manual pdf 1 page image

Installation InstructionsNOTE: Read the entire instruction manual before starting the installation.SAFETY CONSIDERATIONSIMPORTANT: This appliance shall only be installed by EPA qualifiedpersonnel having appropriate certification. This appliance is notintended for use by persons (including children) with reduced physical,sensory or mental capabilities or lack of experience and knowledge,unless they have been given supervision or instruction concerning use ofthe appliance by a person responsible for their safety.Improper installation, adjustment, alteration, service, maintenance, oruse can cause explosion, fire, electrical shock, or other conditions whichmay cause death, personal injury, or property damage. Consult aqualified installer, service agency, or your distributor or branch forinformation or assistance. The qualified installer or agency must usefactory-authorized kits or accessories when modifying this product.Refer to the individual instructions packaged with the kits or accessorieswhen installing.Follow all safety codes. Wear safety glasses, protective clothing, andwork gloves. Use quenching cloth for brazing operations. Have fireextinguisher available. Read these instructions thoroughly and follow allwarnings or cautions included in literature and attached to the unit.Consult local building codes and current editions of the NationalElectrical Code (NEC) NFPA 70. In Canada, refer to current editions ofthe Canadian electrical code CSA 22.1.Recognize safety information. This is the safety-alert symbol Whenyou see this symbol on the unit and in instructions or manuals, be alert tothe potential for personal injury. Understand these signal words;DANGER, WARNING, and CAUTION. These words are used with thesafety-alert symbol. DANGER identifies the most serious hazards whichwill result in severe personal injury or death. WARNING signifieshazards which could result in personal injury or death. CAUTION isused to identify unsafe practices which would result in minor personalinjury or product and property damage. NOTE is used to highlightsuggestions which will result in enhanced installation, reliability, oroperation.GENERALNOTE: In some cases noise in the living area has been traced to gaspulsations from improper installation of equipment.1. This unit is intended to be installed in a location that is 10,000 feet(3000 meters) above sea level or lower.2. Locate unit away from windows, patios, decks, etc. where unitoperation sound may disturb customer.3. Ensure that vapor and liquid tube diameters are appropriate for unitcapacity.4. Run refrigerant tubes with no bends with centerline bend radius lessthan 2.5 times the external pipe diameter.5. Leave some slack between structure and unit to absorb vibration.6. When passing refrigerant tubes through the wall, seal opening withRTV or other pliable silicon-based caulk. (See Fig. 1.)7. Avoid direct tubing contact with water pipes, duct work, floorjoists, wall studs, floors, and walls.8. Do not suspend refrigerant tubing from joists and studs with a rigidwire or strap which comes in direct contact with tubing (see Fig. 1).9. Ensure that tubing insulation is pliable and completely surroundsvapor tube.10. When necessary, use hanger straps which are 1 in. (25 mm) wideand conform to shape of tubing insulation. (See Fig. 1.)11. Isolate hanger straps from insulation by using metal sleeves bent toconform to shape of insulation.12. Provision shall be made for expansion and contraction of long runsof piping.13. Piping and fittings shall be protected as far as possible againstadverse environmental effects. For example, the accumulation ofdirt and debris.14. Piping should be installed to reduce the likelihood of hydraulicshock damaging the system.15. Certified piping and components must be used in order to protectagainst corrosion.16. Flexible pipe elements shall be protected against mechanicaldamage, excessive stress by torsion, or other forces. They should bechecked for mechanical damage annually.17. Piping material, routing, and installation shall be include protectionfrom physical damage in operation and service, and be incompliance with the national and local codes and standards of theinstallation site.18. When setting up refrigerant piping, precautions shall be taken toavoid excessive vibration or pulsationW4A5SSPLIT-SYSTEM AIR CONDITIONERSWITH R-410A REFRIGERANTWARNING!ELECTRICAL SHOCK HAZARDFailure to follow this warning could result in personal injury or death.Before installing, modifying, or servicing system, main electricaldisconnect switch must be in the OFF position. There may be more than1 disconnect switch. Lock out and tag switch with a suitable warninglabel.WARNING!EXPLOSION HAZARDFailure to follow this warning could result inpersonal injury or death.Never use air or any gas containing oxygen for leaktesting or operating refrigerant compressors. Neverallow compressor suction pressure to operate in avacuum with service valves closed. See servicemanual for pump-down instructions.