Table of Contents
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Service and Maintenance Instructions
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 . . . . . . . . . . . . . . 15
CONVENIENCE OUTLETS . . . . . . . . . . . . . . . . . . . . 16
Convenience Outlets . . . . . . . . . . . . . . . . . . . . . . . . 16
Installing Weatherproof Cover . . . . . . . . . . . . . . . . . 16
Non-Powered Type . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Unit-Powered Type . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Duty Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Fuse on Powered Type . . . . . . . . . . . . . . . . . . . . . . . 17
ELECTRIC HEATERS . . . . . . . . . . . . . . . . . . . . . . . . 17
Completing Heater Installation . . . . . . . . . . . . . . . . 18
SMOKE DETECTORS . . . . . . . . . . . . . . . . . . . . . . . . 19
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Smoke Detector Sensor . . . . . . . . . . . . . . . . . . . . . . 19
Smoke Detector Locations . . . . . . . . . . . . . . . . . . . . 19
Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
FIOP Smoke Detector Wiring and Response . . . . . 21
SENSOR AND CONTROLLER TESTS . . . . . . . . . . . 22
Sensor Alarm Test . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Controller Alarm Test . . . . . . . . . . . . . . . . . . . . . . . . 22
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500275-01
Single Package Rooftop Electric Cooling Unit
Printed in U.S.A.
Form 50JC-4-6-01SM
with Puron
Dirty Controller Test . . . . . . . . . . . . . . . . . . . . . . . . .22
Dirty Sensor Test . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Changing the Dirt Sensor Test . . . . . . . . . . . . . . . . .22
Remote Station Test . . . . . . . . . . . . . . . . . . . . . . . . .22
SD-TRK4 Remote Alarm Test Procedure . . . . . . . . .22
Remote Test/Reset Station Dirty Sensor Test . . . . .23
Dirty Sensor Test Using an SD-TRK4 . . . . . . . . . . .23
Detector Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
PROTECTIVE DEVICES . . . . . . . . . . . . . . . . . . . . . . .24
Compressor Protection . . . . . . . . . . . . . . . . . . . . . . .24
Relief Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Control Circuit, 24-V . . . . . . . . . . . . . . . . . . . . . . . . .25
SYSTEMVU CONTROL SYSTEM . . . . . . . . . . . . . . . .25
SystemVu Interface . . . . . . . . . . . . . . . . . . . . . . . . . .25
Air Temperature Sensors . . . . . . . . . . . . . . . . . . . . . 25
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . .25
COMPRESSOR VFD . . . . . . . . . . . . . . . . . . . . . . . . . .27
Drive Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Converter Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Filter Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Capacitor Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
ECONOMIZER SYSTEMS . . . . . . . . . . . . . . . . . . . . .35
EconoMi$er2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
PRE-START-UP/START-UP . . . . . . . . . . . . . . . . . . . .36
START-UP, GENERAL . . . . . . . . . . . . . . . . . . . . . . . .36
Unit Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Additional Installation/Inspection . . . . . . . . . . . . . .36
Return-Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Outdoor-Air Inlet Screens . . . . . . . . . . . . . . . . . . . . .36
Compressor Mounting . . . . . . . . . . . . . . . . . . . . . . . .36
Internal Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Refrigerant Service Ports . . . . . . . . . . . . . . . . . . . . . 36
Compressor Rotation . . . . . . . . . . . . . . . . . . . . . . . .37
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Ventilation (Continuous Fan) . . . . . . . . . . . . . . . . . .37
FASTENER TORQUE VALUES . . . . . . . . . . . . . . . . .37
START-UP, SYSTEMVU CONTROLS . . . . . . . . . . . .37
APPENDIX A - MODEL NUMBER
NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . . . . .38
APPENDIX B - PHYSICAL DATA . . . . . . . . . . . . . . .39
APPENDIX C - FAN PERFORMANCE . . . . . . . . . . .40
APPENDIX D - WIRING DIAGRAMS . . . . . . . . . . . .53
START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . . .CL-1
Pg 1
50JC04-06
®
(R-410A) Refrigerant
3 to 5 Nominal Tons
11-21
Replaces: New
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Summary of Contents for Carrier 50JC04-06
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Page 1: Table Of Contents
50JC04-06 Single Package Rooftop Electric Cooling Unit with Puron ® (R-410A) Refrigerant 3 to 5 Nominal Tons Service and Maintenance Instructions SAFETY CONSIDERATIONS ....2 Dirty Controller Test . -
Page 2: Safety Considerations
SAFETY CONSIDERATIONS WARNING Installation and servicing of air-conditioning equipment can be hazardous due to system pressure and electrical components. UNIT OPERATION AND SAFETY HAZARD Only trained and qualified service personnel should install, re- pair, or service air-conditioning equipment. Untrained person- Failure to follow this warning could cause personal injury, nel can perform the basic maintenance functions of replacing death and/or equipment damage. -
Page 3: Unit Arrangement And Access
Electric Heating UNIT ARRANGEMENT AND ACCESS • Inspect power wire connections General • Ensure fuses are operational Figures 1 and 2 show general unit arrangement and access • Ensure manual reset limit switch is closed locations. Economizer or Outside Air Damper •... -
Page 4: Supply Fan (Blower) Section
Supply Fan (Direct-Drive) All JC units have the EcoBlue™ direct drive vane axial fan 17 1/4” system. The fan is driven by an ECM motor with speed that is user set through the SystemVu™ controller. Speeds are fully configurable from 40% to 100% of motor’s maximum speed. See Fig. - Page 5 5. Using the UP and DOWN arrow keys highlight • IDF VENT SPD SETTINGS and then press ENTER. • IDF HEAT SPD 6. Use the DOWN arrow key highlight the UNIT CONFIG- • IDF LOW COOL SPD URATIONS menu then press ENTER. •...
- 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 6. Install four #10-32 x 1/2-in. hex head machine screws (P/N: AD07AB126) to connect aluminum stator to motor. Tighten to 23 in.-lbs (2.6 Nm). 7. Fit grommet on motor wire harness into keyhole feature on the side of the stator and pull wire harness out through Fig.
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Page 8: Cooling
Reinstalling Motor and Fan Assembly materials provided in this unit). The coil is a composite-type two-row coil. Composite two-row coils are two single-row See Fig. 12. coils fabricated with a single return bend end tubesheet. 1. Align motor harness/grommet at ~7 o’clock (facing Condenser Coil Maintenance and Cleaning installer) and align the bottom flats on right and left sides Recommendation... - 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 Fig. 13 — Location of Screws and Coil Corner Post TOP VIEW 3.
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Page 10: Evaporator Coil
6. Reconnect wiring. 7. Replace access panels. CAUTION THERMOSTATIC EXPANSION VALVE (TXV) UNIT DAMAGE HAZARD Failure to follow this caution may result in accelerated All 50JC units have a factory-installed nonadjustable thermo- corrosion of unit parts. static expansion valve (TXV). The TXV is a bi-flow, bleed port expansion valve with an external equalizer. -
Page 11: Refrigerant System Pressure Access Ports
Refrigerant System Pressure Access Ports There are two access ports in the system: on the suction tube near the compressor and on the discharge tube near the com- pressor. These are brass fittings with black plastic caps. The hose connection fittings are standard 1/4-in. SAE male flare couplings. -
Page 12: Puron (R-410A) Refrigerant
15.6 Refrigerant Charge Amount of refrigerant charge is listed on the unit’s nameplate. Refer to Carrier GTAC2-5 Charging, Recovery, Recycling and Remove Charge if Below the Reclamation training manual and the following procedures. Curve Unit panels must be in place when unit is operating during the charging procedure. - Page 13 4 Ton JC 5 Ton JC R410A Refrigerant Charging Chart R410A 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 4500) speed to 4100) 60.0...
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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 CAUTION damage to equipment. Scroll compressors can only compress refrigerant if UNIT DAMAGE HAZARD rotating in the right direction. -
Page 15: Troubleshooting Cooling System
NO SCREW (Blank Tab) Fig. 26 — Condenser-Fan Assembly — Screw Pattern Sequence 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. -
Page 16: Convenience Outlets
Table 2 — Troubleshooting (cont) SYMPTOM CAUSE SOLUTION Dirty outside. Replace filter. Dirty outdoor coil (cooling). Clean coil. Excessive Head Pressure Refrigerant overcharged. Recover excess refrigerant. Air in system. Recover refrigerant, evacuate system, and recharge. Condensing air restricted or air short-cycling. Determine cause and correct. -
Page 17: Unit-Powered Type
building. Observe national and local codes when selecting wire Fuse on Powered Type size, fuse or breaker requirements and disconnect switch size The factory fuse is a Bussmann Fusetron T-15, non-renewable and location. Route 125-v power supply conductors into the screw-in (Edison base) type plug fuse. -
Page 18: Completing Heater Installation
STATOR MANUAL RESET LIMIT SWITCH Heater Module Fig. 32 — Typical Module Installation SINGLE POINT BOXES AND SUPPLEMENTARY FUSES CONTROL SIDE LINE BREAK AUTOMATIC RESET "ONE SHOT" When the unit MOCP device value exceeds 60A, unit-mounted LIMIT SWITCHES LIMIT SWITCHES supplementary fuses are required for each heater circuit. -
Page 19: Smoke Detectors
SMOKE DETECTORS Smoke detectors are available as factory-installed options on 50JC models. Smoke detectors may be specified for supply air only, for return air without or with economizer, or in combina- tion of supply air and return air. Return air smoke detectors are arranged for vertical return configurations only. -
Page 20: Completing Installation Of Return Air Smoke
RETURN AIR SUPPLY AIR SMOKE DETECTOR SMOKE DETECTOR (AS SHIPPED) Fig. 39 — Typical Return Air Smoke Detector Location Fig. 38 — Typical Supply Air Smoke Detector Sensor Location RETURN AIR SMOKE DETECTOR SENSOR WITHOUT ECONOMIZER The sampling tube is located across the return air opening on the unit basepan. -
Page 21: Fiop Smoke Detector Wiring And Response
FIOP Smoke Detector Wiring and Response RETURN AIR SMOKE DETECTOR ALL UNITS (Operating Position Shown) The FIOP smoke detector is configured to automatically shut down all unit operations when a smoke condition is detected. See Fig. 43, Smoke Detector Wiring. HIGHLIGHT A Smoke detector NC contact set will open on smoke alarm con- dition, de-energizing the ORN conductor. -
Page 22: Sensor And Controller Tests
SENSOR AND CONTROLLER TESTS IMPORTANT: Failure to follow this ALERT can result in Sensor Alarm Test an unnecessary evacuation of the facility. Holding the test magnet against the sensor housing for more The sensor alarm test checks a sensor’s ability to signal an than seven seconds will put the duct detector into the alarm alarm state. -
Page 23: Remote Test/Reset Station Dirty Sensor Test
Remote Test/Reset Station Dirty Sensor Test The test/reset station dirty sensor test checks the test/reset sta- tion’s ability to initiate a sensor dirty test and indicate the re- HVAC DUCT SAMPLING TUBE sults. It must be wired to the controller as shown in Fig. 44 and SENSOR configured to operate the controller’s supervision relay. -
Page 24: Troubleshooting
An internal sensor fault is detected upon entering the trouble SENSOR’S TROUBLE LED IS ON state: 1. Check the sensor’s Dirty LED. If it is flashing, the sensor • The contacts on the controller’s supervisory relay switch is dirty and must be cleaned. positions. -
Page 25: Relief Device
(SAT), outdoor-air temperature (OAT) and return-air The SystemVu control system is fully communicating and temperature (RAT) sensors. See Fig. 48 for location of these cable-ready for connection to the Carrier Comfort Network ® sensors. (CCN), Carrier i-Vu... - Page 26 OUTDOOR AIR TEMPERATURE (OAT) SENSOR RETURN AIR TEMPERATURE (RAT) SENSOR DETAIL "A" DETAIL "A" SUPPLY AIR TEMPERATURE (SAT) SENSOR Fig. 48 — Locations of Air Temperature Sensors...
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Page 27: Compressor Vfd
speed ramp protections, however these are smaller than what the COMPRESSOR VFD SystemVu controller uses. Review the Compressor Control sec- The 48/50JC units are equipped with a variable speed compressor. tion for SystemVu controller start and ramp functions found in the To control this compressor a Variable Frequency Drive (VFD) is 48/50JC 04-06 Ultra High Efficiency Single Package Rooftop required. -
Page 28: Converter Board
SENSOR DC- OUT RS485 DC- IN Fig. 50 — Drive Board Table 5 — Drive Board Inputs/Outputs TERMINAL LABEL DESCRIPTION TYPE CONNECTOR High Pressure switch input 3.3vdc 2 Pins SENSOR DLT sensor input 10k thermistor Pins 1 and 2 (inner 2 pins) Modbus communication with the RS485 RS485 Communication... - Page 29 Switch 1 Switch 2 Switch 3 Switch 4 Fig. 51 — Converter Board Table 6 — 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 30 Table 9 — Converter Board Error Codes ERROR CODE FAULT DESCRIPTION DRIVE MODBUS REGISTER ACTION/CAUSE 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.
- Page 31 Table 9 — Converter Board Error Codes (cont) ERROR CODE FAULT DESCRIPTION DRIVE MODBUS REGISTER ACTION/CAUSE E-19 Compressor Phase Current Reg.79|81 Bit2 Check if the compressor is operating outside the Foldback Timeout specified speed range. E-20 Compress Power Module Reg.79|81 Bit3 Compressor phase current ...
- Page 32 Table 9 — Converter Board Error Codes (cont) ERROR CODE FAULT DESCRIPTION DRIVE MODBUS REGISTER ACTION/CAUSE E-54 Power Module Temperature Sensor Reg.83|85 Bit5 1. Verify proper airflow over the heatsink of the drive. Open/Short Fault Remove any obstructions. 2. Check that the compressor is operating within specified limits.
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Page 33: 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 trouble- shooting, make sure the AC voltage is the same going into the board and coming out of the board. See Fig. 52 and Table 10 for more details on the filter board. -
Page 34: Capacitor Board
troubleshooting. See Fig. 53 and Table 11 below for more details Capacitor Board on the capacitor board. LINE REACTOR WARNING The line reactor is only used on 575 volt units. It is mounted and ELECTRICAL SHOCK HAZARD used in place of the filter board and capacitor board. The line reac- tor protects the drive board from noise and spikes on the supply Failure to follow this warning could result in personal injury, or voltage. -
Page 35: Economizer Systems
ECONOMIZER SYSTEMS OUTSIDE AIR EconoMi$er2 TEMPERATURE SENSOR The unit may be equipped with a factory-installed or accessory ECONOMI$ER2 PLUG (field-installed) EconoMi$er 2 system. See Fig. 54 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 prescriptive section 140.4 (life-cycle tests, damper leakage,... -
Page 36: 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 37: Compressor Rotation
Compressor Rotation Heating To start unit, turn on main power supply. Set system selector switch to the HEAT position and set thermostat at a setting CAUTION above room temperature. Set fan to AUTO position. First stage of thermostat energizes the first stage of the electric EQUIPMENT DAMAGE HAZARD heaters. -
Page 38: Nomenclature
APPENDIX A — MODEL NUMBER NOMENCLATURE Position: 9 10 11 12 13 14 15 16 17 18 – – Example: Unit Heat Type Factory Assigned 50 - Electric/Electric Packaged 0 = Standard Rooftop 1 = LTL ® Model Series - WeatherExpert Electrical Options JC - Ultra High Efficiency A = None... -
Page 39: Appendix B - Physical Data
APPENDIX B — PHYSICAL DATA 50JC 3 TO 5 TON PHYSICAL DATA – COOLING 50JC UNIT 50JC*V04 50JC*W04 50JC*V05 50JC*W05 50JC*V06 50JC*W06 NOMINAL TONS BASE UNIT OPERATING WT (lb)* REFRIGERATION SYSTEM No. Circuits/No. Compressors/Type 1 / 1 / Variable Speed Scroll 1 / 1 / Variable Speed Scroll 1 / 1 / Variable Speed Scroll Puron... -
Page 40: Appendix C - Fan Performance
APPENDIX C — FAN PERFORMANCE GENERAL FAN PERFORMANCE NOTES 1. Interpolation is permissible. Do not extrapolate. 6. The EPACT (Energy Policy Act of 1992) regulates energy requirements for specific types of indoor fan motors. 2. External static pressure is the static pressure difference Motors regulated by EPACT include any general purpose, between the return duct and the supply duct plus the static T-frame (three-digit, 143 and larger), single-speed, foot... - Page 41 APPENDIX C — FAN PERFORMANCE 50JC**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 1050...
- Page 42 APPENDIX C — FAN PERFORMANCE 50JC**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 1241...
- Page 43 APPENDIX C — FAN PERFORMANCE 50JC**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 1863...
- Page 44 APPENDIX C — FAN PERFORMANCE 50JC**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 1914...
- Page 45 APPENDIX C — FAN PERFORMANCE 50JC**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 2034...
- Page 46 APPENDIX C — FAN PERFORMANCE 50JC**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 2103...
- Page 47 APPENDIX C — FAN PERFORMANCE 50JC**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 1050...
- Page 48 APPENDIX C — FAN PERFORMANCE 50JC**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 1204...
- Page 49 APPENDIX C — FAN PERFORMANCE 50JC**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 1826...
- Page 50 APPENDIX C — FAN PERFORMANCE 50JC**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 1873...
- Page 51 APPENDIX C — FAN PERFORMANCE 50JC**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 1983...
- Page 52 APPENDIX C — FAN PERFORMANCE 50JC**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 2046...
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Page 53: Appendix D - Wiring Diagrams
APPENDIX D — WIRING DIAGRAMS WIRING DIAGRAMS 50JC**04-06 UNITS SIZE VOLTAGE CONTROL PAGE POWER PAGE 208/230-3-60 48TC003235 48TC003236 04-06 Controller 460-3-60 48TC003235 48TC003236 (SystemVu™ – Standard) 575-3-60 48TC003235 48TC003237... - Page 54 APPENDIX D — WIRING DIAGRAMS Fig. B — 50JC**04-06 Control Wiring Diagram...
- Page 55 APPENDIX D — WIRING DIAGRAMS Fig. C — 50JC**04-06 Power Wiring Diagram — 208/230, 460-3-60...
- Page 56 APPENDIX D — WIRING DIAGRAMS Fig. D — 50JC**04-06 Power Wiring Diagram — 575-3-60...
- Page 58 © 2021 Carrier Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500275-01 Printed in U.S.A. Form 50JC-4-6-01SM Pg 58 11-21 Replaces: New...
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Page 59: Start-Up Checklist
START-UP CHECKLIST 50JC04-06 SINGLE PACKAGE ROOFTOP COOLING ONLY/ELECTRIC HEAT 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 the preceding sections of this Controls, Start-Up, Operation and Troubleshooting Instructions document. - Page 60 5. Switch unit to OFF by turning Humidi-MiZer test to OFF under the COOL TEST menu Compressor and outdoor fan stop, CLV and RDV solenoids de-energized (Y/N) ______ © 2021 Carrier Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
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