Carrier 50JC04-06 Service And Maintenance Instructions Download Page 58

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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

Summary of Contents for 50JC04-06

Page 1: ...nstallation of Return Air Smoke Detector 20 FIOP Smoke Detector Wiring and Response 21 SENSOR AND CONTROLLER TESTS 22 Sensor Alarm Test 22 Controller Alarm Test 22 Dirty Controller Test 22 Dirty Senso...

Page 2: ...ON HAZARD Failure to follow this warning could result in personal injury or death Before performing service or maintenance operations on unit LOCKOUT TAGOUT the main power switch to unit Electrical sh...

Page 3: ...l need to be periodically replaced or cleaned Filters RETURN AIR FILTERS Return air filters are disposable fiberglass media type Access to the filters is through the small lift out panel located on th...

Page 4: ...temVu controls The Fan Speed settings are accessed through the SystemVu interface 1 Check the job specifications for the CFM cubic feet per minute and ESP external static pressure required 2 Using the...

Page 5: ...6 Ultra High Efficiency Single Package Rooftop Units with SystemVu Controls Version X X Controls Start up Operation and Trouble shooting Instructions NOTE Values in the Field Accessories section are V...

Page 6: ...trol Wiring Diagram Removing the Motor and Fan Assembly NOTE Due to press fit design of composite Rotor on Motor it is highly recommended that any time a motor is replaced the fan rotor is replaced as...

Page 7: ...otor wire harness into keyhole feature on the side of the stator and pull wire harness out through grommet 8 Install rotor on motor by lining up one of 9 holes on com posite rotor with one of 9 holes...

Page 8: ...fibers must be completely removed prior to using low velocity clean water rinse PERIODIC CLEAN WATER RINSE A periodic clean water rinse is very beneficial for coils that are applied in coastal or indu...

Page 9: ...ipment to flush down between the 2 coil sections to remove dirt and debris If a coil cleaner is used be sure to rinse the coils completely before reassembly 11 Move the inner coil back into position R...

Page 10: ...tered through the valve seat is de pendent upon the following 1 Superheat temperature is sensed by cap tube sensing bulb on suction tube at outlet of evaporator coil This tempera ture is converted int...

Page 11: ...e entire core body if neces sary Service tools are available from RCD that allow the re placement of the check valve core without having to recover the entire system refrigerant charge Apply compresso...

Page 12: ...ally used Charts are based on charging the units to the correct sub cooling for the various operating conditions Accurate pressure gage and temperature sensing device are required Connect the pressure...

Page 13: ...gerant Charging Chart Unit must be put in Test Mode and set the Humidimizer test compressor speed to 4500 Remove Charge if Below the Curve 48TC004273 REV Add Charge if Above the Curve Outdoor Coil Lea...

Page 14: ...stops on the fan shaft 5 Tighten set screw to 60 in lb 6 78 Nm 6 Replace condenser fan assembly When replacing the con denser fan assembly follow the screw pattern sequence shown in Fig 26 The screws...

Page 15: ...reset Defective run start capacitor overload start relay Determine cause Replace compressor or allow enough time for internal overload to cool and reset One leg of 3 phase power dead Replace fuse or...

Page 16: ...owered from a source elsewhere in the Excessive Head Pressure Dirty outside Replace filter Dirty outdoor coil cooling Clean coil Refrigerant overcharged Recover excess refrigerant Air in system Recove...

Page 17: ...to clear the tripped condition Fuse on Powered Type The factory fuse is a Bussmann Fusetron1 T 15 non renewable screw in Edison base type plug fuse USING UNIT MOUNTED CONVENIENCE OUTLETS Units with u...

Page 18: ...ach heater module See Fig 34 These are accessed through the indoor access pan el Remove the switch by removing two screws into the base plate and extracting the existing switch Fan stator manual reset...

Page 19: ...tor Sensor Air is introduced to the duct smoke detector sensor s sensing chamber through a sampling tube that extends into the HVAC duct and is directed back into the ventilation system through a shor...

Page 20: ...on Installation requires the sensor be relocated to its operating location and the tubing to the sampling tube be connected See installation steps below Completing Installation of Return Air Smoke Det...

Page 21: ...n 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 USING REMOTE LOGIC Six conductors are provi...

Page 22: ...et then holding it against the sensor housing again until the sensor s Alarm LED turns off approximately 2 seconds Remote Station Test The remote station alarm test checks a test reset station s abili...

Page 23: ...amount of smoke particulate in the sensor s sensing chamber exceeds the alarm threshold value See Table 4 Upon entering the alarm state The sensor s Alarm LED and the controller s Alarm LED turn on T...

Page 24: ...r If wiring is loose or missing repair or replace as required CONTROLLER S POWER LED IS OFF 1 Make sure the circuit supplying power to the controller is operational If not make sure JP2 and JP3 are se...

Page 25: ...o quickly select from 7 main menu items An expanded readout provides detailed explanations of control information Only six buttons are required to maneuver through the entire controls menu The display...

Page 26: ...26 Fig 48 Locations of Air Temperature Sensors RETURN AIR TEMPERATURE RAT SENSOR OUTDOOR AIR TEMPERATURE OAT SENSOR SUPPLY AIR TEMPERATURE SAT SENSOR DETAIL A SEE DETAIL A...

Page 27: ...t of a high current or high temperature situation This high current is determine based on the speed ranges so not just one current limit The drive board has its own built in startup and speed ramp pro...

Page 28: ...converter board or drive board Use the con verter board error code table Table 9 for troubleshooting If the drive board is folding back the speed to protect the current the run ning RPM will alternate...

Page 29: ...1 SWITCH 2 SWITCH 3 SWITCH 4 04 3Ton 3 3 1 1 05 4Ton 3 4 1 1 06 5Ton 3 5 5 1 Table 8 Converter Board Foldback Codes FOLDBACK CODE FOLDBACK DESCRIPTION Sd01 Configuration Status EEPROM FLASH Sd02 Speed...

Page 30: ...5 below the specified voltage for the drive 2 Check the DC bus voltage if it is 385VDC 3 Check the compressor is operating within the specified limits 4 If the problem still persists then it is possib...

Page 31: ...mpressor is operating within specified limits 3 Check the mounting screws on the drive make sure they are tight 4 If the problem still persists replace the drive E 31 Comms to DSP Communication Lost R...

Page 32: ...rive are possibly defective If problem persists replace the drive E 62 Stator Heater Overcurrent Reg 83 85 Bit13 Compress windings are drawing more current than expected in stator heater mode If probl...

Page 33: ...g out of the board See Fig 52 and Table 10 for more details on the filter board Fig 52 Filter Board Table 10 Filter Board Inputs Outputs TERMINAL LABEL DESCRIPTION TYPE CONNECTOR L1_IN L2_IN L3_IN Sup...

Page 34: ...they are the same CHOKE The choke is the heaviest component and used to protect the DC bus from voltage spikes This is wired between the DC output of the drive board and the DC input to the capacitor...

Page 35: ...r accuracy etc will have a label on the economizer Any economizer without this label does not meet California s Title 24 The five year limited parts warranty referred to in section 140 4 only applies...

Page 36: ...Controls Start up Operation and Troubleshooting Instructions manual for the specific DDC In spect the SAT sensor for relocation as intended during installa tion Inspect special wiring as directed belo...

Page 37: ...irst stage of thermostat energizes the first stage of the electric heaters Second stage of thermostat energizes the second stage of electric heaters if installed Check heating effects at air supply gr...

Page 38: ...Cu Cu Cu Cu Louvered Hail Guard Voltage 1 575 3 60 5 208 230 3 60 6 460 3 60 Design Revision Factory Design Revision Base Unit Controls 3 SystemVu Controls Standard all units Air Intake Exhaust Option...

Page 39: ...1 17 2 17 2 17 Total Face Area ft2 5 5 5 5 5 5 EVAPORATOR FAN AND MOTOR Standard Static 3 Phase Motor Qty Drive Type 1 Direct 1 Direct 1 Direct 1 Direct 1 Direct 1 Direct Max Cont BHP 0 44 0 44 0 72 0...

Page 40: ...motor drive recommenda tions In cases when two motor drive combinations would work the lower horsepower option is recommended 6 The EPACT Energy Policy Act of 1992 regulates energy requirements for s...

Page 41: ...68 2253 0 80 2362 0 92 2466 1 04 1125 2051 0 60 2172 0 71 2286 0 83 2395 0 96 1200 2088 0 63 2208 0 75 2321 0 87 2428 1 00 1275 2127 0 67 2245 0 79 2357 0 91 2463 1 04 1350 2167 0 71 2283 0 83 2394 0...

Page 42: ...2190 RPM 50JC 04 THREE PHASE HIGH STATIC 3 TON VERTICAL SUPPLY RPM VDC CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 0 2 0 4 0 6 0 8 1 0 RPM Vdc RPM Vdc RPM Vdc RPM Vdc RPM Vdc 900 1092 4 4 1317 5 3 1...

Page 43: ...2336 1 35 2430 1 52 1500 2080 0 95 2185 1 10 2285 1 26 2381 1 43 2473 1 60 1600 2131 1 02 2236 1 18 2334 1 34 2428 1 51 2519 1 69 1700 2185 1 10 2287 1 26 2385 1 43 2477 1 60 2566 1 78 1800 2239 1 19...

Page 44: ...L SUPPLY RPM VDC CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 0 2 0 4 0 6 0 8 1 0 RPM Vdc RPM Vdc RPM Vdc RPM Vdc RPM Vdc 1200 1190 4 5 1383 5 2 1544 5 8 1685 6 3 1814 6 8 1300 1255 4 7 1441 5 4 1599...

Page 45: ...0 1 48 2502 1 65 2590 1 84 1875 2280 1 25 2381 1 43 2476 1 60 2566 1 78 2653 1 97 2000 2351 1 37 2449 1 55 2543 1 74 2632 1 93 2717 2 12 2125 2422 1 50 2519 1 69 2611 1 88 2699 2 08 2783 2 28 2250 249...

Page 46: ...TATIC 5 TON VERTICAL SUPPLY RPM VDC CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 0 2 0 4 0 6 0 8 1 0 RPM Vdc RPM Vdc RPM Vdc RPM Vdc RPM Vdc 1500 1387 4 9 1561 5 5 1711 6 0 1845 6 5 1967 6 9 1625 1473...

Page 47: ...346 0 90 2450 1 02 1125 2030 0 58 2154 0 70 2269 0 81 2377 0 94 2480 1 06 1200 2064 0 61 2186 0 73 2301 0 85 2409 0 97 1275 2099 0 64 2220 0 76 2333 0 88 2441 1 01 1350 2134 0 68 2254 0 80 2367 0 92 2...

Page 48: ...2190 RPM 50JC 04 THREE PHASE HIGH STATIC 3 TON HORIZONTAL SUPPLY RPM VDC CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 0 2 0 4 0 6 0 8 1 0 RPM Vdc RPM Vdc RPM Vdc RPM Vdc RPM Vdc 900 1060 4 3 1292 5 2...

Page 49: ...36 0 89 2143 1 04 2245 1 20 2342 1 36 2435 1 53 1600 2084 0 96 2190 1 11 2290 1 27 2385 1 44 2477 1 61 1700 2132 1 02 2237 1 18 2336 1 35 2430 1 52 2520 1 69 1800 2182 1 10 2285 1 26 2383 1 43 2476 1...

Page 50: ...N HORIZONTAL SUPPLY RPM VDC CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 0 2 0 4 0 6 0 8 1 0 RPM Vdc RPM Vdc RPM Vdc RPM Vdc RPM Vdc 1200 1148 4 3 1343 5 0 1507 5 7 1651 6 2 1781 6 7 1300 1209 4 5 139...

Page 51: ...16 2322 1 32 2419 1 49 2511 1 67 2599 1 85 2000 2284 1 26 2385 1 43 2480 1 61 2571 1 79 2658 1 98 2125 2350 1 37 2449 1 55 2543 1 73 2633 1 92 2719 2 12 2250 2417 1 49 2514 1 67 2607 1 87 2695 2 06 2...

Page 52: ...PHASE HIGH STATIC 5 TON HORIZONTAL SUPPLY RPM VDC CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 0 2 0 4 0 6 0 8 1 0 RPM Vdc RPM Vdc RPM Vdc RPM Vdc RPM Vdc 1500 1335 4 7 1507 5 3 1660 5 9 1797 6 3 192...

Page 53: ...RAMS WIRING DIAGRAMS 50JC 04 06 UNITS SIZE VOLTAGE CONTROL PAGE POWER PAGE 04 06 Controller SystemVu Standard 208 230 3 60 48TC003235 54 48TC003236 55 460 3 60 48TC003235 54 48TC003236 55 575 3 60 48T...

Page 54: ...54 APPENDIX D WIRING DIAGRAMS Fig B 50JC 04 06 Control Wiring Diagram...

Page 55: ...55 APPENDIX D WIRING DIAGRAMS Fig C 50JC 04 06 Power Wiring Diagram 208 230 460 3 60...

Page 56: ...56 APPENDIX D WIRING DIAGRAMS Fig D 50JC 04 06 Power Wiring Diagram 575 3 60...

Page 57: ......

Page 58: ...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 Repl...

Page 59: ...ting in the correct direction Y N ______ Verify installation of thermostat space sensor Y N ______ Verify configuration values for electronic controls Y N ______ Refer to the Setpoint and Configuratio...

Page 60: ...for correct ramp up of outdoor fan motor as condenser coil warms Y N ______ 2 Check unit charge per charging chart Y N ______ 3 Switch unit to HIGH LATENT mode SUBCOOL by turning Humidi MiZer test to...

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