Carrier 38AKS013-024 User Manual

Installation, Start-Up andService InstructionsCONTENTSPageSAFETY CONSIDERATIONS ...1INSTALLATION ...1-12Step

INSTALL FILTER DRIER(S) AND MOISTURE INDICA-TOR(S) — Every unit should have a filter drier and liquid-moisture indicator (sight glass). In some applica

Table 6A — Electrical Data (3 Ph/60 Hz)UNIT38AKSUNIT COMPR FAN MOTORS (Single Phase)ModelVoltsMCA ICFMOCP(FuseOnly)RLA LRATotalFansFLA (ea)Fan No.kWNa

Table 6B — Electrical Data (3 Ph/50 Hz)UNIT38AKSUNIT COMPR FAN MOTORS 230 v (Single Phase)ModelVoltsMCA ICFMOCP(FuseOnly)RLA LRATotalFansFLA (ea)Fan N

START-UPCompressor crankcase heater must be on for 24 hoursbefore start-up. After the heater has been on for 24 hours,the unit can be started. If no t

Fig. 10 — 38AKS013 and 38AKS024 Charging Chart14

Fig. 11 — 38AKS014 Charging Chart15

Fig. 12 — 38AKS016 Charging Chart16

OPERATING SEQUENCECooling —When the first stage (TC1) of the cooling ther-mostat closes, the timer starts. After approximately3 seconds, the timer expi

Winter Start Control (If Required) — Install Ac-cessory Package 38AE900021.Crankcase Heater — The heater prevents refrigerantmigration and compressor

Fig. 15 — Outdoor FanFig. 16 — Pivot and Support Top CoverFig. 17 — Coil Cleaning (Typical)19

NOTE: Service areas — Allow 3 ft (914 mm) on both sides and 2 ft (610 mm)on both ends of unit for servicing.Fig. 1 — Dimensions2

TROUBLESHOOTINGPROBLEM SOLUTIONCOMPRESSOR DOES NOT RUNContactor Open1. Power off. 1. Restore power.2. Fuses blown in field power circuit. 2. After findi

TROUBLESHOOTING (cont)PROBLEM SOLUTIONCOMPRESSOR CYCLES ON LOW-PRESSURE SWITCH (cont)Airflow Restricted1. Coil iced up. 1. Check refrigerant charge.2.

Copyright 1998 Carrier CorporationManufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and w

START-UP CHECKLISTA. Preliminary InformationOUTDOOR: MODEL NO. SERIAL NO.INDOOR: AIR HANDLER MANUFACTURERMODEL NO. SERIAL NO.ADDITIONAL ACCESSORIESB.

C. Start-UpCHECK INDOOR UNIT FAN SPEED AND RECORD.CHECK OUTDOOR UNIT FAN SPEED AND RECORD.AFTER AT LEAST 10 MINUTES RUNNING TIME, RECORD THE FOLLOWING

1324567812 91011LEGEND1—No. 1 Fan 5—No. 2 Fan 9—Compressor2—High-Pressure Switch 6—Terminal Block 1 (Unit Power) 10 — Low-Pressure Switch3—Circuit Bre

Table 1A — Physical Data (English, 60 Hz)UNIT 38AKS 013 014 016 024OPERATING WEIGHT (lb)With Aluminum-Fin Coil 732 779 789 900With Copper-Fin Coil 825

Table 1B — Physical Data (SI, 60 Hz)UNIT 38AKS 013 014 016 024OPERATING WEIGHT (kg)With Aluminum-Fin Coil 332 353 358 408With Copper-Fin Coil 374 417

Table 1C — Physical Data (English, 50 Hz)UNIT 38AKS 013 014 016 024OPERATING WEIGHT (lb)With Aluminum-Fin Coil 732 779 789 900With Copper-Fin Coil 825

Table 1D — Physical Data (SI, 50 Hz)UNIT 38AKS 013 014 016 024OPERATING WEIGHT (kg)With Aluminum-Fin Coil 332 353 358 408With Copper-Fin Coil 374 417

Step 2 — Rig and Mount the UnitBe sure unit panels are securely in place prior torigging.RIGGING — These units are designed for overhead riggingonly.

Table 4A — Refrigerant Piping Sizes — 60 Hz UnitsUNIT38AKSLENGTH OF INTERCONNECTING PIPING, FT (M)0-15(0-4.5)15-25(4.5-7.5)25-50(7.5-15)50-75(15-23)75