Carrier 38CMC Installation And Start-up Instructions Manual

Also see for 38CMC: Owner's manual Installation and start-up instructions

38CMC11 SEER Split SystemAir ConditionerInstallation and Start-Up InstructionsNOTE: Read the entire instruction manual before starting theinstallation.This symbol → indicates a change since the last issue.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 instructions thor-oughly and follow all warnings or cautions included in literatureand attached to the unit. Consult local building codes and NationalElectrical Code (NEC) for special requirements.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 the signal words DANGER, WARNING, and CAU-TION. These words are used with the safety-alert symbol. DAN-GER identifies the most serious hazards which will result in severepersonal injury or death. WARNING signifies hazards whichcould result in personal injury or death. CAUTION is used toidentify unsafe practices which would result in minor personalinjury or product and property damage.Before installing, modifying, or servicing system, main elec-trical disconnect switch must be in the OFF position. Theremay be more than 1 disconnect switch. Lock out and tagswitch with a suitable warning label. Electrical shock cancause personal injury or death.INSTALLATION 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. where unitoperation sound may disturb customer.2. Ensure that vapor and liquid tube diameters are appropriate tocapacity of unit.3. Run refrigerant tubes as directly as possible by avoidingunnecessary turns and bends.4. Leave some slack between structure and unit to absorbvibration.5. When passing refrigerant tubes through the wall, seal openingwith RTV or other pliable silicon-based caulk. (See Fig. 2.)6. Avoid direct tubing contact with water pipes, duct work, floorjoists, wall studs, floors, and walls.7. Do not suspend refrigerant tubing from joists and studs with arigid wire or strap which comes in direct contact with tubing.(See Fig. 2.)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. 2.)10. Isolate hanger straps from insulation by using metal sleevesbent to conform to shape of insulation.When outdoor unit is connected to factory-approved indoor unit,outdoor unit contains system refrigerant charge for operation withindoor unit of the same size when connected by 15 ft offield-supplied or factory accessory tubing. For proper unit opera-tion, check refrigerant charge using charging information locatedon control box cover and/or in the Check Charge section of thisinstruction.IMPORTANT: Maximum liquid-line size is 3/8-in. O.D. for allresidential applications including long line.IMPORTANT: Always install a liquid-line filter drier. Refer toProduct Data Digest for appropriate part number. Obtain filterdriers from service parts.INSTALLATIONStep 1—Check Equipment and Job SiteUNPACK UNITMove to final location. Remove carton taking care not to damageunit.Fig. 1—Model 38CMCA97005Visit www.carrier.comManufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Book 1 4Tab 3a 2a PC 101 Catalog No. 563-840 Printed in U.S.A. Form 38CMC-1SI Pg 1 9-97 Replaces: 38BRC-1SI/38-7SM→