Carrier 48SX024-060- Manuals

REQ’D CLEARANCES FOR SERVICING. in. (mm) Duct panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0Unit top . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 (914)Side opposite ducts . . . . . . . . . . . . . . . . . . . . . 36 (914) Compressor access . . . . . . . . . . . . . . ....

PART NUMBER ‘‘A’’ FLAT CURB CPRFCURB001A00 8 9 [203] CPRFCURB002A00 11 9 [279] CPRFCURB003A00 14 9 [356] NOTES:1. Roof curb must be set up for unit being installed.2. Seal strip must be applied as required for unit being installed.3. Dimensions in [ ] are in millimeters. 4. Roof curb is made of 16 g...

UNITS WITHOUT BASE RAIL — If accessory riggingbrackets are to be used for rigging, install them as follows: Secure screws and paint protectors solidly against unitbasepan to hold lifting brackets in position.Never use lifting brackets when the temperature is be-low −10 F.Never exceed 200 lbs per bra...

UNITS WITH OPTIONAL BASE RAIL — Lifting holesare provided in optional base rail as shown in Fig. 13. Op-erating weights are shown in Tables 1 and 2. Refer to rig-ging instructions on unit. Protective wood support must be removed from unit be- fore unit is mounted to curb. Remove 4 screws that secure...

Table 1 — Physical Data — Unit 48SS UNIT SIZE 48SS 018040 024040 024060 030040 030060 030080 036060 036080 036100 036120 NOMINAL CAPACITY (ton) 1 1 ⁄ 2 2 2 2 1 ⁄ 2 2 1 ⁄ 2 2 1 ⁄ 2 3 3 3 3 OPERATING WEIGHT (lb) Without Base Rail 272 303 315 320 332 332 336 336 348 348 With Optional Base Rail 296 327 ...

Table 2 — Physical Data — Unit 48SX UNIT SIZE 48SX 024040 024060 030040 030060 030080 036060 036080 036100 036120 NOMINAL CAPACITY (ton) 2 2 2 1 ⁄ 2 2 1 ⁄ 2 2 1 ⁄ 2 3 3 3 3 OPERATING WEIGHT (lb) Without Base Rail 333 345 336 348 348 366 366 378 378 With Optional Base Rail 357 369 360 372 372 390 390...

(Text continued from page 13) Unstable operation may occur when the gas valveand manifold assembly are forced out of position whileconnecting improperly-routed rigid gas piping to thegas valve. Use a backup wrench when making con-nection to avoid strain on, or distortion of, the gascontrol piping. I...

Adhere to the following criteria when selecting, sizing, and installing the duct system:1. Units are shipped with all 4 duct openings covered. Re- move appropriate panels for intended installation. 2. Select and size ductwork, supply-air registers, and return-air grilles according to American Societ...

Table 4A — Electrical Data — Unit 48SS UNIT SIZE 48SS V-PH-Hz VOLTAGE RANGE COMPRESSOR OUTDOOR-FAN MOTOR INDOOR-FAN MOTOR POWER SUPPLY AWG 60 C MIN WIRE SIZE MAX WIRE LENGTH (ft) Min Max RLA LRA FLA FLA MCA MOCP* 018 208/230-1-60 187 253 8.3 45.0 0.7 1.8 12.9 15 14 75 024 208/230-1-60 187 253 12.4 6...

Table 4B — Electrical Data — Unit 48SX UNIT SIZE 48SX V-PH-Hz VOLTAGE RANGE COMPRESSOR OUTDOOR-FAN MOTOR INDOOR-FAN MOTOR POWER SUPPLY AWG 60 C MIN WIRE SIZE MAX WIRE LENGTH (ft) Min Max RLA LRA FLA FLA MCA MOCP* 024 208/230-1-60 187 253 12.9 62.5 1.4 2.0 19.5 30 12 75 030 208/230-1-60 187 253 15.0 ...

HEAT ANTICIPATOR SETTING — The room thermostatheat anticipator must be properly adjusted to ensure properheating performance. Set the heat anticipator, using an am-meter between the W and R terminals to determine theexact required setting.NOTE: For thermostat selection purposes, use 0.18 amp forthe ...

a. Before lighting the unit for the first time, perform the following: If the gas supply pipe was not purged be-fore connecting the unit, it will be full of air. It is rec-ommended that the ground joint union be loosened,and the supply line be allowed to purge until the odorof gas is detected. Never...

Table 5 — Rated Gas Inputs at Indicated Manifold Pressures UNIT 48SS,SX NUMBER OF ORIFICES GAS SUPPLY PRESSURE (in. wg) MANIFOLD PRESSURE (in. wg) NATURAL GAS PROPANE* Natural Propane Orifice Drill Size Heating Input (Btuh)† Orifice Drill Size Heating Input (Btuh)† Min Max Min Max Natural Propane 01...

Measure Manifold Pressure (Propane Units) — The main burnerorifices on a propane gas unit are sized for the unit ratedinput when the manifold pressure reading matches the levelspecified in Table 5. Proceed as follows to adjust gas input on a propane gas unit:1. Turn off gas to unit.2. Remove pipe pl...

HEATING SEQUENCE OF OPERATION — See Fig. 26-33and unit wiring label. On a call for heating, terminal ‘‘W’’ of the thermostat is energized, starting the induced-draft motor. When the hall-effect sensor on the induced-draft motor senses that it hasreached the required speed, the burner sequence begins...

Table 8F — Superheat Charging Table, 48SS048 (Carrier Scroll Compressor) TEMP (F) AIR ENT COND EVAP AIR — CFM 1600 Evap Air — Ewb (F) 54 56 58 60 62 64 66 68 70 72 74 76 65 SPH 15.5 15.5 15.6 15.6 17.6 19.6 21.6 22.8 24.0 25.2 25.2 25.3 70 SPH 11.7 11.8 11.8 11.8 13.9 16.0 18.0 20.1 22.2 24.3 24.3 2...

Table 14 — Dry-Coil Air Delivery* — Downflow Discharge at 230 and 460 V — Unit 48SX (Deduct 10% from Cfm and Watts for 208 V Operation) UNIT 48SX MOTOR SPEED AIR DELIVERY EXTERNAL STATIC PRESSURE (in. wg) 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 024,030 Low Watts 280 275 265 255 250 245 240 † † †...

Table 17 — Wet Coil Pressure Drop UNIT SIZE AIRFLOW (cfm) PRESSURE DROP (in. wg) 018* 600 0.069 700 0.082 800 0.102 900 0.116 024 600 0.039 700 0.058 800 0.075 900 0.088 030 900 0.088 1000 0.095 1200 0.123 036 1000 0.068 1200 0.088 1400 0.108 1600 0.123 042 1000 0.048 1200 0.069 1400 0.088 1600 0.10...

Air Filter Never operate the unit without a suitable air filter in thereturn-air duct system. Always replace the filter with thesame dimensional size and type as originally installed.See Tables 1 and 2 for recommended filter sizes. Inspect air filter(s) at least once each month and replace (throwawa...

Combustion-Air Blower — Clean periodically to as- sure proper airflow and heating efficiency. Inspect blowerwheel every fall and periodically during heating season. Forthe first heating season, inspect blower wheel bimonthly todetermine proper cleaning frequency. To inspect blower wheel, remove draf...

TROUBLESHOOTING Cooling SYMPTOM CAUSE REMEDY Compressor andcondenser fan willnot start. Power failure Call power company. Fuse blown or circuit breaker tripped Replace fuse or reset circuit breaker. Defective thermostat, contactor, transformer,or control relay Replace component. Insufficient line vo...

Cooling (cont) SYMPTOM CAUSE REMEDY Integrated controlmotor(units 48SX048,060208/230 v)IFM does not run. Blower wheel not secured to shaft Properly tighten blower wheel to shaft. Insufficient voltage at motor Determine cause and correct. Power connectors not properlyseated Connectors should snap eas...

LED Troubleshooting — Error Code SYMPTOM CAUSE REMEDY Hardware failure.(LED OFF) Loss of power to control module(IGC). Check 5 amp fuse on IGC, power to unit, 24-v circuitbreaker, and transformer. Units without a 24-v circuitbreaker have an internal overload in the 24-v trans-former. If the overload...

START-UP CHECKLIST (Remove and Store in Job File) I. PRELIMINARY INFORMATION MODEL NO.: DATE: SERIAL NO.: TECHNICIAN: II. PRE-START-UP (insert checkmark in box as each item is completed) M VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT M VERIFY THAT CONDENSATE CONNECTION IS INSTALLED ...

REQ’D CLEARANCES FOR SERVICING. in. (mm) Duct panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0Unit top . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 (914)Side opposite ducts . . . . . . . . . . . . . . . . . . . . . 36 (914) Compressor access . . . . . . . . . . . . . . ....

PART NUMBER ‘‘A’’ FLAT CURB CPRFCURB001A00 8 9 [203] CPRFCURB002A00 11 9 [279] CPRFCURB003A00 14 9 [356] NOTES:1. Roof curb must be set up for unit being installed.2. Seal strip must be applied as required for unit being installed.3. Dimensions in [ ] are in millimeters. 4. Roof curb is made of 16 g...

UNITS WITHOUT BASE RAIL — If accessory riggingbrackets are to be used for rigging, install them as follows: Secure screws and paint protectors solidly against unitbasepan to hold lifting brackets in position.Never use lifting brackets when the temperature is be-low −10 F.Never exceed 200 lbs per bra...

UNITS WITH OPTIONAL BASE RAIL — Lifting holesare provided in optional base rail as shown in Fig. 13. Op-erating weights are shown in Tables 1 and 2. Refer to rig-ging instructions on unit. Protective wood support must be removed from unit be- fore unit is mounted to curb. Remove 4 screws that secure...

Table 1 — Physical Data — Unit 48SS UNIT SIZE 48SS 018040 024040 024060 030040 030060 030080 036060 036080 036100 036120 NOMINAL CAPACITY (ton) 1 1 ⁄ 2 2 2 2 1 ⁄ 2 2 1 ⁄ 2 2 1 ⁄ 2 3 3 3 3 OPERATING WEIGHT (lb) Without Base Rail 272 303 315 320 332 332 336 336 348 348 With Optional Base Rail 296 327 ...

Table 2 — Physical Data — Unit 48SX UNIT SIZE 48SX 024040 024060 030040 030060 030080 036060 036080 036100 036120 NOMINAL CAPACITY (ton) 2 2 2 1 ⁄ 2 2 1 ⁄ 2 2 1 ⁄ 2 3 3 3 3 OPERATING WEIGHT (lb) Without Base Rail 333 345 336 348 348 366 366 378 378 With Optional Base Rail 357 369 360 372 372 390 390...

(Text continued from page 13) Unstable operation may occur when the gas valveand manifold assembly are forced out of position whileconnecting improperly-routed rigid gas piping to thegas valve. Use a backup wrench when making con-nection to avoid strain on, or distortion of, the gascontrol piping. I...

Adhere to the following criteria when selecting, sizing, and installing the duct system:1. Units are shipped with all 4 duct openings covered. Re- move appropriate panels for intended installation. 2. Select and size ductwork, supply-air registers, and return-air grilles according to American Societ...

Table 4A — Electrical Data — Unit 48SS UNIT SIZE 48SS V-PH-Hz VOLTAGE RANGE COMPRESSOR OUTDOOR-FAN MOTOR INDOOR-FAN MOTOR POWER SUPPLY AWG 60 C MIN WIRE SIZE MAX WIRE LENGTH (ft) Min Max RLA LRA FLA FLA MCA MOCP* 018 208/230-1-60 187 253 8.3 45.0 0.7 1.8 12.9 15 14 75 024 208/230-1-60 187 253 12.4 6...

Table 4B — Electrical Data — Unit 48SX UNIT SIZE 48SX V-PH-Hz VOLTAGE RANGE COMPRESSOR OUTDOOR-FAN MOTOR INDOOR-FAN MOTOR POWER SUPPLY AWG 60 C MIN WIRE SIZE MAX WIRE LENGTH (ft) Min Max RLA LRA FLA FLA MCA MOCP* 024 208/230-1-60 187 253 12.9 62.5 1.4 2.0 19.5 30 12 75 030 208/230-1-60 187 253 15.0 ...

HEAT ANTICIPATOR SETTING — The room thermostatheat anticipator must be properly adjusted to ensure properheating performance. Set the heat anticipator, using an am-meter between the W and R terminals to determine theexact required setting.NOTE: For thermostat selection purposes, use 0.18 amp forthe ...

a. Before lighting the unit for the first time, perform the following: If the gas supply pipe was not purged be-fore connecting the unit, it will be full of air. It is rec-ommended that the ground joint union be loosened,and the supply line be allowed to purge until the odorof gas is detected. Never...

Table 5 — Rated Gas Inputs at Indicated Manifold Pressures UNIT 48SS,SX NUMBER OF ORIFICES GAS SUPPLY PRESSURE (in. wg) MANIFOLD PRESSURE (in. wg) NATURAL GAS PROPANE* Natural Propane Orifice Drill Size Heating Input (Btuh)† Orifice Drill Size Heating Input (Btuh)† Min Max Min Max Natural Propane 01...

Measure Manifold Pressure (Propane Units) — The main burnerorifices on a propane gas unit are sized for the unit ratedinput when the manifold pressure reading matches the levelspecified in Table 5. Proceed as follows to adjust gas input on a propane gas unit:1. Turn off gas to unit.2. Remove pipe pl...

HEATING SEQUENCE OF OPERATION — See Fig. 26-33and unit wiring label. On a call for heating, terminal ‘‘W’’ of the thermostat is energized, starting the induced-draft motor. When the hall-effect sensor on the induced-draft motor senses that it hasreached the required speed, the burner sequence begins...

Table 8F — Superheat Charging Table, 48SS048 (Carrier Scroll Compressor) TEMP (F) AIR ENT COND EVAP AIR — CFM 1600 Evap Air — Ewb (F) 54 56 58 60 62 64 66 68 70 72 74 76 65 SPH 15.5 15.5 15.6 15.6 17.6 19.6 21.6 22.8 24.0 25.2 25.2 25.3 70 SPH 11.7 11.8 11.8 11.8 13.9 16.0 18.0 20.1 22.2 24.3 24.3 2...

Table 14 — Dry-Coil Air Delivery* — Downflow Discharge at 230 and 460 V — Unit 48SX (Deduct 10% from Cfm and Watts for 208 V Operation) UNIT 48SX MOTOR SPEED AIR DELIVERY EXTERNAL STATIC PRESSURE (in. wg) 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 024,030 Low Watts 280 275 265 255 250 245 240 † † †...

Table 17 — Wet Coil Pressure Drop UNIT SIZE AIRFLOW (cfm) PRESSURE DROP (in. wg) 018* 600 0.069 700 0.082 800 0.102 900 0.116 024 600 0.039 700 0.058 800 0.075 900 0.088 030 900 0.088 1000 0.095 1200 0.123 036 1000 0.068 1200 0.088 1400 0.108 1600 0.123 042 1000 0.048 1200 0.069 1400 0.088 1600 0.10...

Air Filter Never operate the unit without a suitable air filter in thereturn-air duct system. Always replace the filter with thesame dimensional size and type as originally installed.See Tables 1 and 2 for recommended filter sizes. Inspect air filter(s) at least once each month and replace (throwawa...

Combustion-Air Blower — Clean periodically to as- sure proper airflow and heating efficiency. Inspect blowerwheel every fall and periodically during heating season. Forthe first heating season, inspect blower wheel bimonthly todetermine proper cleaning frequency. To inspect blower wheel, remove draf...

TROUBLESHOOTING Cooling SYMPTOM CAUSE REMEDY Compressor andcondenser fan willnot start. Power failure Call power company. Fuse blown or circuit breaker tripped Replace fuse or reset circuit breaker. Defective thermostat, contactor, transformer,or control relay Replace component. Insufficient line vo...

Cooling (cont) SYMPTOM CAUSE REMEDY Integrated controlmotor(units 48SX048,060208/230 v)IFM does not run. Blower wheel not secured to shaft Properly tighten blower wheel to shaft. Insufficient voltage at motor Determine cause and correct. Power connectors not properlyseated Connectors should snap eas...

LED Troubleshooting — Error Code SYMPTOM CAUSE REMEDY Hardware failure.(LED OFF) Loss of power to control module(IGC). Check 5 amp fuse on IGC, power to unit, 24-v circuitbreaker, and transformer. Units without a 24-v circuitbreaker have an internal overload in the 24-v trans-former. If the overload...

START-UP CHECKLIST (Remove and Store in Job File) I. PRELIMINARY INFORMATION MODEL NO.: DATE: SERIAL NO.: TECHNICIAN: II. PRE-START-UP (insert checkmark in box as each item is completed) M VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT M VERIFY THAT CONDENSATE CONNECTION IS INSTALLED ...