Table of Contents
Advertisement
Quick Links
Service and Maintenance Instructions
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 2
UNIT ARRANGEMENT AND ACCESS . . . . . . . . . . . . 3
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 3
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
SUPPLY FAN (BLOWER) SECTION . . . . . . . . . . . . . . 4
Supply Fan (Direct-Drive) . . . . . . . . . . . . . . . . . . . . . . 4
COOLING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Condenser Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Recommendation . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Evaporator Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
THERMOSTATIC EXPANSION VALVE (TXV) . . . . . 10
TXV Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Replacing TXV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Refrigerant System Pressure Access Ports . . . . . . 11
PURON (R-410A) REFRIGERANT . . . . . . . . . . . . . . . 12
Refrigerant Charge . . . . . . . . . . . . . . . . . . . . . . . . . . 12
COOLING CHARGING CHARTS . . . . . . . . . . . . . . . . 12
COMPRESSOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Replacing Compressor . . . . . . . . . . . . . . . . . . . . . . . 14
Compressor Rotation . . . . . . . . . . . . . . . . . . . . . . . . 14
Filter Drier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Condenser-Fan Adjustment . . . . . . . . . . . . . . . . . . . 14
Troubleshooting Cooling System . . . . . . . . . . . . . . 16
CONVENIENCE OUTLETS . . . . . . . . . . . . . . . . . . . . 17
Installing Weatherproof Cover . . . . . . . . . . . . . . . . . 17
Non-Powered Type . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Unit-Powered Type . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Duty Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Fuse on Powered Type . . . . . . . . . . . . . . . . . . . . . . . 18
SMOKE DETECTORS . . . . . . . . . . . . . . . . . . . . . . . . 18
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Smoke Detector Sensor . . . . . . . . . . . . . . . . . . . . . . 18
Smoke Detector Locations . . . . . . . . . . . . . . . . . . . . 19
Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
FIOP Smoke Detector Wiring and Response . . . . . 20
SENSOR AND CONTROLLER TESTS . . . . . . . . . . . 21
Sensor Alarm Test . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Controller Alarm Test . . . . . . . . . . . . . . . . . . . . . . . . 21
Dirty Controller Test . . . . . . . . . . . . . . . . . . . . . . . . . 21
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53480598-01
Single Package Rooftop Gas Heat/Electric Cooling Unit
Page
Printed in U.S.A.
Form 48JC-4-6-03SM
with Puron
®
Dirty Sensor Test . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Changing the Dirty Sensor Test . . . . . . . . . . . . . . . .22
Remote Station Test . . . . . . . . . . . . . . . . . . . . . . . . .22
SD-TRK4 Remote Alarm Test Procedure . . . . . . . .22
Dirty Sensor Test Using an SD-TRK4 . . . . . . . . . . .22
Detector Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
PROTECTIVE DEVICES . . . . . . . . . . . . . . . . . . . . . . .24
Compressor Protection . . . . . . . . . . . . . . . . . . . . . . .24
Relief Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Control Circuit, 24-V . . . . . . . . . . . . . . . . . . . . . . . . .24
GAS HEATING SYSTEM . . . . . . . . . . . . . . . . . . . . . .24
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Fuel Types and Pressures . . . . . . . . . . . . . . . . . . . .25
Flue Gas Passageways . . . . . . . . . . . . . . . . . . . . . . .25
Combustion-Air Blower . . . . . . . . . . . . . . . . . . . . . . .25
Burners and Igniters . . . . . . . . . . . . . . . . . . . . . . . . .26
Burner Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Orifice Replacement . . . . . . . . . . . . . . . . . . . . . . . . .29
Troubleshooting Heating System . . . . . . . . . . . . . .32
SYSTEMVU CONTROL SYSTEM . . . . . . . . . . . . . . . .34
SystemVu Interface . . . . . . . . . . . . . . . . . . . . . . . . . .34
Air Temperature Sensors . . . . . . . . . . . . . . . . . . . . .34
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . .34
COMPRESSOR VFD . . . . . . . . . . . . . . . . . . . . . . . . . .36
Drive Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Converter Board . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Filter Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Capacitor Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
ECONOMIZER SYSTEM . . . . . . . . . . . . . . . . . . . . . . .43
EconoMi$er2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
PRE-START-UP/START-UP . . . . . . . . . . . . . . . . . . . .44
START-UP, GENERAL . . . . . . . . . . . . . . . . . . . . . . . .44
Unit Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Additional Installation/Inspection . . . . . . . . . . . . . .44
Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Return-Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Outdoor-Air Inlet Screens . . . . . . . . . . . . . . . . . . . . .45
Compressor Mounting . . . . . . . . . . . . . . . . . . . . . . .45
Internal Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Refrigerant Service Ports . . . . . . . . . . . . . . . . . . . . .45
Compressor Rotation . . . . . . . . . . . . . . . . . . . . . . . .45
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Main Burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Pg 1
48JC**04-06
(R-410A) Refrigerant
3 to 5 Nominal Tons
3-25
Replaces: 48JC-4-6-02SM
Advertisement
Table of Contents
Troubleshooting
Related Manuals for Carrier 48JC 04 Series
Summary of Contents for Carrier 48JC 04 Series
-
Page 1: Table Of Contents
48JC**04-06 Single Package Rooftop Gas Heat/Electric Cooling Unit with Puron ® (R-410A) Refrigerant 3 to 5 Nominal Tons Service and Maintenance Instructions CONTENTS Dirty Sensor Test ......21 Changing the Dirty Sensor Test . -
Page 2: Safety Considerations
Ventilation (Continuous Fan) ....46 FASTENER TORQUE VALUES ....46 WARNING START-UP, SYSTEMVU CONTROLS . -
Page 3: Unit Arrangement And Access
Heating UNIT ARRANGEMENT AND ACCESS • Heat exchanger flue passageways cleanliness General • Gas burner condition Figures 1 and 2 show general unit arrangement and access • Gas manifold pressure locations. • Heating temperature rise Filter Access Panel Economizer or Outside Air Damper •... -
Page 4: Manual Outside Air Hood Screen
All low-voltage wiring should be routed through the provided raceway built into the corner post of the unit or secured to the unit 17' 1/4" control box with the electrical conduit in order to provide UL- required clearance between high and low-voltage wiring. Supply Fan (Direct-Drive) All JC units have the EcoBlue™... - Page 5 NOTE: The Fan Speed Set Up labels are located on the High Volt- Use the UP and DOWN arrow keys and the BACK key to age cover in the Control Box. set the values. Press ENTER after setting each value to con- tinue to the next selection.
- Page 6 TROUBLESHOOTING THE ECM MOTOR EcoBlue™ motors are designed with several built-in protections included in the motor software. If the motor detects a fault it will safely shut down. For temperature related faults the motor re- quires a line voltage reset to continue operation. For all others, the motor will resume operation automatically as soon as the fault condition is cleared.
- Page 7 Fig. 11 — Fan System Re-Assembly Install 4 no. 10-32 x 1/2 in. hex head machine screws (P/N: AD07AB126) to connect stator to motor. Tighten to 23 in.-lb (2.6 Nm). Fit grommet on motor wire harness into keyhole feature on the side of the stator and pull wire harness out through Fig.
-
Page 8: Condenser Coil
Reinstalling Motor and Fan Assembly identify the materials provided in this unit). The coil may be one- row or composite-type 2-row. Composite 2-row coils are 2 single- See Fig. 12. row coils fabricated with a single return bend end tubesheet. Align motor harness/grommet at ~7 o’clock (facing Condenser Coil Maintenance and Cleaning ... - Page 9 Top Panel Coil Clips Remove Remove screws Screws from all sides of top panel Condenser Center Post Compressor Access Panel Condenser Fig. 15 — Condenser Coil Clips Coil Condenser Coil Corner Post Top View Fig. 13 — Location of Screws and Coil Corner Post Lift and rotate the top panel at the condenser fan end and rotate the panel 90 degrees.
-
Page 10: Evaporator Coil
Reconnect wiring. Replace access panels. CAUTION THERMOSTATIC EXPANSION VALVE (TXV) UNIT DAMAGE HAZARD Failure to follow this caution may result in accelerated All 48JC units have a factory-installed nonadjustable thermostatic corrosion of unit parts. expansion valve (TXV). The TXV is a bi-flow, bleed port expan- sion valve with an external equalizer. -
Page 11: Refrigerant System Pressure Access Ports
Refrigerant System Pressure Access Ports There are 2 access ports in the system: on the suction tube near the compressor and on the discharge tube near the compressor. These are brass fittings with black plastic caps. The hose con- nection fittings are standard 1/4 in. SAE male flare couplings. The brass fittings are 2-piece high flow valves, with a recepta- cle base brazed to the tubing and an integral spring-closed check valve core screwed into the base. -
Page 12: Puron (R-410A) Refrigerant
Refrigerant Charge Amount of refrigerant charge is listed on the unit’s nameplate. 15.6 Refer to Carrier GTAC2-5 Charging, Recovery, Recycling and Reclamation training manual and the following procedures. Unit panels must be in place when unit is operating during the... - Page 13 5 Ton JC 4 Ton JC R-410A Refrigerant Charging Chart R-410A Refrigerant Charging Chart (Unit must be put in Test Mode and set the Cooling test compressor (Unit must be put in Test Mode and set the Cooling test compressor speed to 4100) speed to 4500) 60.0...
-
Page 14: Compressor
COMPRESSOR Compressor Rotation Lubrication CAUTION The compressor is charged with the correct amount of oil at the factory. EQUIPMENT DAMAGE HAZARD Failure to follow this caution can result in premature wear and damage to equipment. CAUTION Scroll compressors can only compress refrigerant if UNIT DAMAGE HAZARD rotating in the right direction. - Page 15 No Screw (Blank Tab) Fig. 26 — Condenser-Fan Assembly — Screw Pattern Sequence...
-
Page 16: Troubleshooting Cooling System
Troubleshooting Cooling System Refer to Table 2 for additional troubleshooting topics. Table 2 — Troubleshooting SYMPTOM CAUSE SOLUTION Power failure. Call power company. Fuse blown or circuit breaker tripped. Replace fuse or reset circuit breaker. Determine root cause. Defective thermostat, contactor, transformer, Replacement component. -
Page 17: Convenience Outlets
Press the gasket over the screw heads. Slip the backing CONVENIENCE OUTLETS plate over the screw heads at the keyhole slots and align with the gasket; tighten the 2 screws until snug (do not over-tighten). WARNING Mount the weatherproof cover to the backing plate as ELECTRICAL OPERATION HAZARD shown in Fig. -
Page 18: Duty Cycle
necessary for operation are factory-provided and mounted. The unit is factory-configured for immediate smoke detector shut- down operation; additional wiring or modifications to unit termi- nal board may be necessary to complete the unit and smoke de- tector configuration to meet project requirements. System The smoke detector system consists of a 4-wire controller and one or 2 sensors. -
Page 19: Smoke Detector Locations
action to shut down fans and blowers, change over air handling systems, notify the fire alarm control panel, etc. The sensor uses a process called differential sensing to prevent Supply Air gradual environmental changes from triggering false alarms. A Smoke Detector rapid change in environmental conditions, such as smoke from a fire, causes the sensor to signal an alarm state but dust and debris accumulated over time does not. -
Page 20: Completing Installation Of Return Air Smoke
RETURN AIR SMOKE DETECTOR SENSOR WITH Remove the return air smoke sensor module and its detec- ECONOMIZER tor plate. Rotate the detector plate so the sensor is facing outwards The sampling tube is inserted through the side plates of the econo- and the sampling tube connection is on the bottom. -
Page 21: Sensor And Controller Tests
Fig. 37 — Typical Smoke Detector System Wiring ADDITIONAL APPLICATION DATA Refer to the application data document “Factory Installed Smoke IMPORTANT: Failure to follow this ALERT can result in Detectors for Small and Medium Rooftop Units 2 to 25 Tons” for an unnecessary evacuation of the facility.... -
Page 22: Changing The Dirty Sensor Test
Table 3 — Dirty LED Test FLASHES DESCRIPTION 0-25% dirty (Typical of a newly installed detector) Smoke Detector Controller 25-50% dirty 51-75% dirty − Auxiliary 76-99% dirty Equipment DIRTY SENSOR TEST PROCEDURE Hold the test magnet where indicated on the side of the sensor housing for 2 seconds. -
Page 23: Indicators
Table 4 — Detector Indicators HVAC Duct Sampling CONTROL OR DESCRIPTION INDICATOR Tube Sensor Resets the sensor when it is in the alarm or trouble Housing Magnetic test/ state. Activates or tests the sensor when it is in the reset switch normal state. -
Page 24: Protective Devices
SENSOR’S POWER LED IS OFF CONDENSER FAN MOTOR PROTECTION Check the controller’s Power LED. If it is off, determine The condenser fan motor is internally protected against over- temperature. why the controller does not have power and make the nec- essary repairs. -
Page 25: Fuel Types And Pressures
SUPPLY PRESSURE SWITCH Fuel Types and Pressures The LP conversion kit includes a supply low pressure switch. NATURAL GAS The switch contacts (from terminal C to terminal NO) will The 48JC unit is factory-equipped for use with natural gas open the gas valve power whenever the supply line pressure (NG) fuel at elevation under 2000 ft (610 m). -
Page 26: Burners And Igniters
Heater Tube Assembly Seal Strips, Sponge Rubber Regulator Gasket Regulator Baffle Assembly (Low NO x Only) Retainer Flue Cover Assembly Pressure Switch Hose Connection Vestibule Plate Flue Baffle (Low NO x Only) Inducer Fan-Motor Assembly Burner Assembly Fig. 45 — Heat Exchanger Assembly To inspect blower wheel, shine a flashlight into draft hood open- Orifice projection ing. -
Page 27: Cleaning And Adjustment
Heat Exchanger Support Rack Limit Switch Heat Exchanger Cover Panel Unit Center Burner Post Partition Panel Fig. 47 — Heat Exchanger Access — Internal Panels, Center Post and HX Rack Locations CLEANING AND ADJUSTMENT Manifold Pressure Tap Remove burner rack from unit as described in “Removal and Replacement of Gas Train”... - Page 28 See Detail “A” See Detail “B” LOW HEAT 3 PHASE 67,000 BTUH LOW NOx* 60,000 BTUH *Only available for Low Heat Units See Detail “A” See Detail “B” MEDIUM HEAT HIGH HEAT 3 PHASE 110,000 BTUH 3 PHASE 150,000 BTUH .200 in.
-
Page 29: Removing The Heat Exchanger
REMOVING THE HEAT EXCHANGER Replace regulator cover screw(s) when finished. 10. Observe unit heating operation in both high stage and low The following procedure details the steps to remove the heat ex- stage operation if so equipped. Observe burner flames to changed from the unit. - Page 30 Regulator Regulator Cover Screw (2) On/Off On/Off Cover Screw Switch Plastic Adjust Switch Plastic Adjust Screw (2) Screw Regulator Spring (2) Regulator Spring NPT Inlet NPT Inlet (Propane — White (Propane — White Natural — Silver) Natural — Silver) Low Stage Gas Pressure Inlet Gas Pressure...
- Page 31 RED LED - STATUS Fig. 52 — Integrated Gas Controller (IGC) Board...
-
Page 32: Troubleshooting Heating System
MINIMUM HEATING ENTERING AIR TEMPERATURE Thermostat When operating on first stage heating, the minimum tempera- ture of air entering the dimpled heat exchanger is 50°F continu- ous and 45°F intermittent for standard heat exchangers and 40°F continuous and 35°F intermittent for stainless steel heat OALT exchangers. -
Page 33: Reset Method
Table 11 — IGC Board LED Alarm Codes a,b,c,d ACTION TAKEN BY FLASH DESCRIPTION RESET METHOD PROBABLE CAUSE CONTROL CODE Normal Operation — — — Loss of power to the IGC. Check 5 amp fuse Hardware Failure No gas heating. —... -
Page 34: Systemvu Control System
The user can The SystemVu control system is fully communicating and cable- access a built-in test routine that can be used at start-up com- ready for connection to the Carrier Comfort Network (CCN), missioning and troubleshooting. - Page 35 Outdoor Air Detail “A” Temperature (OAT) Sensor Return Air Temperature (RAT) Sensor Detail “A” Supply Air Temperature (SAT) Sensor Fig. 55 — Locations of Air Temperature Sensors...
-
Page 36: Compressor Vfd
its own built-in start-up and speed ramp protections, however, COMPRESSOR VFD these are smaller than what the SystemVu controller uses. Re- The 48JC units are equipped with a variable speed compressor. view the Compressor Control section for SystemVu controller To control this compressor a Variable Frequency Drive (VFD) start and ramp functions found in the 48/50JC 04-06 Ultra is required. -
Page 37: Converter Board
SENSOR DC- OUT RS485 DC- IN Fig. 57 — Drive Board Table 12 — Drive Board Inputs/Outputs TERMINAL LABEL DESCRIPTION TYPE CONNECTOR High Pressure switch input 3.3 vdc 2 Pins SENSOR DLT sensor input 10k thermistor Pins 1 and 2 (inner 2 pins) Modbus communication with the RS485 RS485 Communication... - Page 38 Switch 1 Switch 2 Switch 3 Switch 4 Fig. 58 — Converter Board Table 13 — Converter Board Inputs/Outputs REFERENCE DESCRIPTION TYPE CONNECTOR NUMBER Not used — — Not used — — Modbus communication with the drive board RS485 Communication Pins 1,2, and 3 Input control from SystemVu PWM signal...
-
Page 39: Fault Description
Table 16 — Converter Board Error Codes ERROR DRIVE MODBUS FAULT DESCRIPTION ACTION/CAUSE CODE REGISTER E-01 Compressor Phase Over Current Reg.78|80 Bit0 1. Check the U/V/W connections on the drive side. 2. Check the compressor motor windings. 3. Check the compressor is operating within specified limits. 4. - Page 40 Table 16 — Converter Board Error Codes (cont) ERROR DRIVE MODBUS FAULT DESCRIPTION ACTION/CAUSE CODE REGISTER E-24 Modbus Communication Lost Reg.79|81 Bit7 1. Check Modbus communication cable connections. 2. Check the communications parameters are set right. 3. Power cycle the drive. 4.
-
Page 41: Filter Board
Filter Board The Filter board is a support board that helps filter out noise and spikes on the voltage supplied to the Drive board. For trou- bleshooting, make sure the AC voltage is the same going into the board and coming out of the board. See Fig. 59 and Table 17 for more details on the filter board. -
Page 42: Capacitor Board
LINE REACTOR Capacitor Board The line reactor is only used on 575 volt units. It is mounted and used in place of the filter board and capacitor board. The WARNING line reactor protects the drive board from noise and spikes on the supply voltage. -
Page 43: Economizer System
ECONOMIZER SYSTEM Outside Air EconoMi$er2 Temperature Sensor The unit may be equipped with a factory-installed or accessory EconoMi$er2 Plug (field-installed) EconoMi$er2 system. See Fig. 61 for compo- nent locations. Economizers use direct-drive damper actuators. IMPORTANT: Any economizer that meets the economizer requirements as laid out in California’s Title 24 mandatory section 120.2 (fault detection and diagnostics) and/or pre- scriptive section 140.4 (life-cycle tests, damper leakage,... -
Page 44: Pre-Start-Up/Start-Up
c. Inspect all field-wiring and factory-wiring connec- PRE-START-UP/START-UP tions. Be sure that connections are completed and tight. Be sure that wires are not in contact with refrig- erant tubing or sharp edges. WARNING d. Inspect coil fins. If damaged during shipping and han- PERSONAL INJURY HAZARD dling, carefully straighten fins with a fin comb. -
Page 45: Return-Air Filters
Compressor Rotation WARNING CAUTION If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal in- EQUIPMENT DAMAGE HAZARD jury or loss of life. Failure to follow this caution can result in premature wear and Do not store or use gasoline or other flammable vapors and damage to equipment. -
Page 46: Heating
To restore the original default value, reset the power to the unit. Heating To shut off unit, set system selector switch at OFF position. Purge gas supply line of air by opening union ahead of the Resetting heating selector lever below room temperature will gas valve. -
Page 47: Appendix A - Model Number Nomenclature
APPENDIX A — MODEL NUMBER NOMENCLATURE Position: 9 10 11 12 13 14 15 16 17 18 – Example: Unit Heat Type Factory Assigned 48 = Gas Heat Packaged Rooftop 0 = Standard 1 = LTL Model Series - WeatherExpert ®... -
Page 48: Appendix B - Physical Data
APPENDIX B — PHYSICAL DATA 48/50JC 3 to 5 Ton Physical Data 48/50JC UNIT 48/50JC*V04 48/50JC*W04 48/50JC*V05 48/50JC*W05 48/50JC*V06 48/50JC*W06 NOMINAL TONS BASE UNIT OPERATING WT (lb) 48JC/50JC 587/542 610/565 612/567 REFRIGERATION SYSTEM No. Circuits/No. Compressors/Type 1 / 1 / Variable Speed Scroll 1 / 1 / Variable Speed Scroll 1 / 1 / Variable Speed Scroll Puron... - Page 49 APPENDIX B — PHYSICAL DATA (cont) 48JC 3 to 6 Ton Gas Heat Data 48JC UNIT 48JC**04 48JC**05 48JC**06 GAS CONNECTION No. of Gas Valves Natural Gas Supply Line Pressure (in. wg)/(psig) 4-13 / 0.18-0.47 4-13 / 0.18-0.47 4-13 / 0.18-0.47 Liquid Propane Supply Line Pressure (in.
-
Page 50: Appendix C - Fan Performance
APPENDIX C — FAN PERFORMANCE GENERAL FAN PERFORMANCE NOTES Interpolation is permissible. Do not extrapolate. For information on the electrical properties of Carrier motors, please see the Electrical Data section of the product data book External static pressure is the static pressure difference for this model and size. - Page 51 APPENDIX C — FAN PERFORMANCE (cont) 48JC**04 Three Phase — 3 Ton Vertical Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1092 0.09 1317 0.16 1503 0.24 1666 0.32 1812 0.41 1140 0.10 1361 0.18 1543 0.26 1703 0.34 1847 0.44...
- Page 52 APPENDIX C — FAN PERFORMANCE (cont) 48JC**04 Three Phase — Medium Static — 3 Ton Vertical Supply (rpm - vdc) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1092 1317 1503 1666 1812 1140 1361 1543 1703 1847 1050 1190 1405 1584 1741 1884 1125...
- Page 53 APPENDIX C — FAN PERFORMANCE (cont) 48JC**05 Three Phase — 4 Ton Vertical Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1200 1190 0.18 1383 0.28 1544 0.39 1685 0.51 1814 0.63 1300 1255 0.21 1441 0.32 1599 0.43 1737 0.55...
- Page 54 APPENDIX C — FAN PERFORMANCE (cont) 48JC**05 Three Phase — Medium Static — 4 Ton Vertical Supply (rpm - vdc) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1200 1190 1383 1544 1685 1814 1300 1255 1441 1599 1737 1863 1400 1320 1500 1654 1791...
- Page 55 APPENDIX C — FAN PERFORMANCE (cont) 48JC**06 Three Phase — 5 Ton Vertical Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1500 1387 0.28 1561 0.40 1711 0.53 1845 0.66 1967 0.80 1625 1473 0.34 1638 0.46 1784 0.60 1914 0.74...
- Page 56 APPENDIX C — FAN PERFORMANCE (cont) 48JC**06 Three Phase — Medium Static — 5 Ton Vertical Supply (rpm - vdc) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1500 1387 1561 1711 1845 1967 1625 1473 1638 1784 1914 2034 1750 1561 1718 1859 1987...
- Page 57 APPENDIX C — FAN PERFORMANCE (cont) 48JC**04 Three Phase — 3 Ton Horizontal Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1060 0.08 1292 0.15 1483 0.23 1650 0.31 1798 0.40 1106 0.09 1331 0.16 1519 0.24 1683 0.33 1831 0.43...
- Page 58 APPENDIX C — FAN PERFORMANCE (cont) 48JC**04 Three Phase — Medium Static — 3 Ton Horizontal Supply (rpm - vdc) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1060 1292 1483 1650 1798 1106 1331 1519 1683 1831 1050 1154 1371 1556 1718 1864 1125...
- Page 59 APPENDIX C — FAN PERFORMANCE (cont) 48JC**05 Three Phase — 4 Ton Horizontal Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1200 1148 0.16 1343 0.26 1507 0.37 1651 0.48 1781 0.60 1300 1209 0.19 1397 0.29 1557 0.40 1698 0.52...
- Page 60 APPENDIX C — FAN PERFORMANCE (cont) 48JC**05 Three Phase — Medium Static — 4 Ton Horizontal Supply (rpm - vdc) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1200 1148 1343 1507 1651 1781 1300 1209 1397 1557 1698 1826 1400 1271 1452 1608 1747...
- Page 61 APPENDIX C — FAN PERFORMANCE (cont) 48JC**06 Three Phase — 5 Ton Horizontal Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1500 1335 0.25 1507 0.36 1660 0.49 1797 0.62 1921 0.75 1625 1418 0.30 1580 0.42 1727 0.55 1861 0.68...
- Page 62 APPENDIX C — FAN PERFORMANCE (cont) 48JC**06 Three Phase — Medium Static — 5 Ton Horizontal Supply (rpm - vdc) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1500 1335 1507 1660 1797 1921 1625 1418 1580 1727 1861 1983 1750 1502 1655 1796 1926...
-
Page 63: Appendix D - Wiring Diagrams
APPENDIX D — WIRING DIAGRAMS Wiring Diagrams 48JC**04-06 UNITS SIZE VOLTAGE CONTROL PAGE POWER PAGE 208/230-3-60 48TC003238 04-06 Controller 460-3-60 48TC003234 (SystemVu™ — Standard) 575-3-60 48TC003239... - Page 64 APPENDIX D — WIRING DIAGRAMS (cont) Fig. B — 48JC**04-06 Control Wiring Diagram...
- Page 65 APPENDIX D — WIRING DIAGRAMS (cont) Fig. C — 48JC**04-06 Power Wiring Diagram — 208/230, 460-3-60...
- Page 66 APPENDIX D — WIRING DIAGRAMS (cont) Fig. D — 48JC**04-06 Power Wiring Diagram — 575-3-60 © 2025 Carrier Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53480598-01 Printed in U.S.A.
-
Page 67: Preliminary Information
START-UP CHECKLIST FOR 48JC**04-06 SINGLE PACKAGE ROOFTOP GAS HEATING/ELECTRIC COOLING UNIT (Remove and use for job file) NOTE: To avoid injury to personnel and damage to equipment or property when completing the procedures listed in this start-up checklist, use good judgment, follow safe practices, and adhere to the safety considerations/information as outlined in preceding sec- tions of this document. -
Page 68: Humidi-Mizer
5. Switch unit to OFF by turning Humidi-MiZer test to OFF under the COOL TEST menu, and Compressor and outdoor fan stop, CLV and RDV solenoids de-energized (Y/N) ______ © 2025 Carrier Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53480598-01 Printed in U.S.A.
Need help?
Do you have a question about the 48JC 04 Series and is the answer not in the manual?
Questions and answers