Carrier EHC05CKN Installation Instructions Manual

Installation InstructionsNOTE: Read the entire instruction manual before starting theinstallation.SAFETY CONSIDERATIONSInstalling and servicing of heating and air conditioning equipment can behazardous due to system pressures and electrical components. Onlytrained personnel should install or service heating and air conditioningequipment.Untrained personnel can perform basic maintenance functions such ascleaning coils, or cleaning and replacing filters. All other operationsshould be performed by trained personnel. When working on heatingand air conditioning equipment, observe precautions in literature, ontags, and on labels attached to the unit.Follow all safety codes. Wear safety glasses and work gloves. Have afire extinguisher available.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 the signal words DANGER, WARNING, and CAUTION.These words are used with the safety-alert symbol. DANGER identifiesthe most serious hazards which will result in severe personal injury ordeath. WARNING signifies hazards which could result in personalinjury or death. CAUTION is used to identify unsafe practices, whichmay result in minor personal injury or product and property damage.NOTE is used to highlight suggestions which will result in enhancedinstallation, reliability, or operation.NOTE: Use an accessory downflow base to maintain proper clearanceon downflow installations.EHCElectric Heater PackagesWARNING!ELECTRICAL SHOCK HAZARDFailure to follow this warning could result in personal injury or death.Before beginning any installation or modification, be sure the mainelectrical disconnect switch(es) is in the OFF position. There may bemore than one power supply. Tag the disconnect switch(es) with asuitable warning label.Table 1 – EH Heater TableHEATERPART NO.kW@ 240V VOLTS/PH STAGES (kWOPERATING)INTERNAL CIRCUITPROTECTIONFAN COIL SIZE USEDWITHHEATING CAP.*@ 230V*. Does not include heat from blower motor.EHC05CKN 5 230/1 5 None 18 ††. Size 18 fan coil has a special 6-pin connector. Do not modify wiring.15,700EHC07CKN 8 230/1 8 None 18 † 25,100EHC10CKN 10 230/1 10 None 18 † 31,400EHC05BKN 5 230/1 5 None 24–60 15,700EHC07BKN 8 230/1 8 None 24–60 25,100EHC10BKN 10 230/1 10 None 24–60 31,400EHC20BKF 20 230/1 5, 20 Fuse ‡‡. Single point wiring kit required for these heaters.30–60 62,800EHC05CKB 5 230/1 5 Circuit Breaker 18 † 15,700EHC07CKB 8 230/1 8 Circuit Breaker 18 † 25,100EHC10CKB 10 230/1 10 Circuit Breaker 18 † 31,400EHC05BKB 5 230/1 5 Circuit Breaker 24–60 15,700EHC07BKB 8 230/1 8 Circuit Breaker 24–60 25,100EHC10BKB 10 230/1 10 Circuit Breaker 24–60 31,400EHC20BKB 20 230/1 5, 20 Circuit Breaker 30–60 62,800EHC09BKCN 9 230/1****. Field convertible to 3 phase.3, 9 None 36–60 28,200EHC15BKF 15 230/1 5, 15 Fuse ‡ 24–60 47,100EHC15BKB 15 230/1 5, 15 Circuit Breaker 24–60 47,1003 Phase OnlyEHC15BHN 15 230/3 5, 15 None 36–60 47,100EHC18BHN 18 230/3 6, 12, 18 None 42–60 56,5003 Phase, Factory Shipped (field convertible to single phase)EHC25BHCF 24 230/3 8, 16, 24 Fuse 48, 60 78,300EHC30BHCF 30 230/3 10, 20, 30 Fuse 48, 60 94,100