Carrier 25HBC5 Installation Instructions Manual

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Carrier 25HBC5 Installation Instructions Manual Manual pdf 1 page image

Installation Instructions25HBC5, 25HCC5, 25HCE4Single Stage Heat Pumpswith Puron Refrigerant1–1/2 To 5 Nominal TonsNOTE: Read the entire instruction manual before starting theinstallation.SAFETY CONSIDERATIONSImproper installation, adjustment, alteration, service, maintenance,or use can cause explosion, fire, electrical shock, or otherconditions which may cause death, personal injury, or propertydamage. Consult a qualified installer, service agency, or yourdistributor or branch for information or assistance. The qualifiedinstaller or agency must use factory–authorized kits or accessorieswhen modifying this product. Refer to the individual instructionspackaged with the kits or accessories when installing.Follow all safety codes. Wear safety glasses, protective clothing,and work gloves. Use quenching cloth for brazing operations.Have fire extinguisher available. Read these instructionsthoroughly and follow all warnings or cautions included inliterature and attached to the unit. Consult local building codes andcurrent editions of the National Electrical Code (NEC) NFPA 70.In Canada, refer to current editions of the Canadian electrical codeCSA 22.1.Recognize safety information. This is the safety–alert symbol !! .When you see this symbol on the unit and in instructions ormanuals, be alert to the potential for personal injury.Understand these signal words; DANGER, WARNING, andCAUTION. These words are used with the safety–alert symbol.DANGER identifies the most serious hazards which will result insevere personal injury or death. WARNING signifies hazardswhich could result in personal injury or death. CAUTION is usedto identify unsafe practices which may result in minor personalinjury or product and property damage. NOTE is used to highlightsuggestions which will result in enhanced installation, reliability, oroperation.! WARNINGELECTRICAL SHOCK HAZARDFailure to follow this warning could result in personal injuryor death.Before installing, modifying, or servicing system, mainelectrical disconnect switch must be in the OFF position.There may be more than 1 disconnect switch. Lock out andtag switch with a suitable warning label.EXPLOSION HAZARDFailure to follow this warning couldresult in death, serious personal injury,and/or property damage.Never use air or gases containingoxygen for leak testing or operatingrefrigerant compressors. Pressurizedmixtures of air or gases containingoxygen can lead to an explosion.! WARNINGINSTALLATION RECOMMENDATIONSNOTE: In some cases noise in the living area has been traced togas pulsations from improper installation of equipment.1. Locate unit away from windows, patios, decks, etc. whereunit operation sound may disturb customer.2. Ensure that vapor and liquid tube diameters are appropriatefor unit capacity.3. Run refrigerant tubes as directly as possible by avoiding un-necessary turns and bends.4. Leave some slack between structure and unit to absorb vi-bration.5. When passing refrigerant tubes through the wall, seal open-ing with RTV or other pliable silicon–based caulk (see Fig.1).6. Avoid direct tubing contact with water pipes, duct work,floor joists, wall studs, floors, and walls.7. Do not suspend refrigerant tubing from joists and studs witha rigid wire or strap which comes in direct contact withtubing (see Fig. 1).8. Ensure that tubing insulation is pliable and completely sur-rounds vapor tube.9. When necessary, use hanger straps which are 1 in. wide andconform to shape of tubing insulation (see Fig. 1).10. Isolate hanger straps from insulation by using metal sleevesbent to conform to shape of insulation.INSULATIONSUCTION TUBELIQUID TUBEOUTDOOR WALL INDOOR WALLLIQUID TUBESUCTION TUBEINSULATIONCAULKHANGER STRAP(AROUND SUCTIONTUBE ONLY)JOIST1” (25.4 mm)MINTHROUGH THE WALLSUSPENSIONA07588Fig. 1 – Connecting Tubing InstallationWhen outdoor unit is connected to factory–approved indoor unit,outdoor unit contains system refrigerant charge for operation withAHRI rated indoor unit when connected by 15 ft. (4.57 m) offield–supplied or factory accessory tubing. For proper unitoperation, check refrigerant charge using charging informationlocated on control box cover and/or in the Check Charge section ofthis instruction.IMPORTANT: Maximum liquid–line size is 3/8–in. OD for allresidential applications including long line.IMPORTANT: Always install the factory–supplied liquid–linefilter drier. Obtain replacement filter driers from your distributor orbranch.