Carrier 48TC series Service And Maintenance Instructions Download

Page: 41 / 112

Fig. 57 —

Integrated Gas Control (IGC) Board

RED LED - STATUS

Summary of Contents for 48TC series

Page 1: ...FRIGERANT 17 Refrigerant Charge 17 Using the Cooling Charging Charts 17 COOLING CHARGING CHARTS 18 COMPRESSORS 22 Lubrication 22 Filter Drier 22 TROUBLESHOOTING THE COOLING SYSTEM 23 CONVENIENCE OUTLE...

Page 2: ...hen handling parts and servicing air conditioning equipment WARNING FIRE EXPLOSION HAZARD Failure to follow this warning could result in death serious personal injury and or property damage Never use...

Page 3: ...ters and screens will need to be periodically re placed or cleaned RETURN AIR FILTERS Return air filters are a disposable fiberglass media type Access to the filters is through the small lift out pane...

Page 4: ...belt condition and tension quarterly Inspect the belt for signs of cracking fraying or glazing along the inside surfaces Check belt tension by using a spring force tool such as Brown ing s Belt Tensio...

Page 5: ...or a realignment of the pulleys after any adjustment of the movable flange Also reset the belt tension after each realignment The factory settings of the adjustable pulley is five turns open from full...

Page 6: ...for the VFD can be found in the following manuals Variable Frequency Drive VFD Installation Setup and Troubleshooting Supplement MOTOR When replacing the motor use the following steps See Fig 10 Fig 1...

Page 7: ...o increase fan wheel speed check the fan performance at the target speed and airflow rate to determine new motor loading bhp Use the fan performance tables or use the Packaged Rooftop Builder software...

Page 8: ...A accepted biodegradable agent that will not harm the coil or surrounding components such as electrical wiring painted metal surfaces or insulation Use of non recommended coil cleaners is strongly dis...

Page 9: ...d pro tective clothing are recommended during mixing and application 2 Remove all surface loaded fibers and dirt with a vacuum cleaner as described above 3 Thoroughly wet finned surfaces with clean wa...

Page 10: ...CD P N P920 0010 that allow the replacement of the Schrader valve core without having to re cover the entire system refrigerant charge Apply compressor re frigerant oil to the Schrader valve core s bo...

Page 11: ...gerant then enters a Thermostatic Expansion Valve TXV decreasing the air pressure The refrigerant enters the TXV and evaporator coil at a tempera ture lower than the temperature in the standard coolin...

Page 12: ...OMPRESSOR OUTDOOR AIR INDOOR AIR RH2 x VALVE RH1 x VALVE TXV VALVE CLOSED VALVE OPEN VALVE 3 WAY VALVE CONDENSER COIL HUMIDI MIZER COIL EVAPORATOR COIL COMPRESSOR OUTDOOR AIR INDOOR AIR RH2 x VALVE RH...

Page 13: ...Freeze Protection Thermostat IFM Indoor supply Fan Motor LSV Liquid Solenoid Valve LTLO Low Temperature Lockout REHEAT Connection Strip REHEAT on CTB Table 3 Inputs Modes Outputs Summary INPUT MODE OU...

Page 14: ...transformer and circuit beaker or fuses Solenoid coil burnout Check continuous over voltage is less than 10 Check under voltage is less than 15 Check for missing coil assembly parts Check for damaged...

Page 15: ...410A refrigerant recover all refrigerant from the system 3 Remove the TXV support clamp 4 Disconnect the liquid line at the TXV inlet 5 Remove the liquid line connection at the TXV inlet 6 Remove the...

Page 16: ...16 Fig 22 TXV Sensor Bulb Locations TXV SENSOR BULB CLAMP CIRCUIT 1 CIRCUIT 2 TXV CIRCUIT 2 TXV CIRCUIT 1 TXV SENSOR BULBS TXV SENSOR BULBS...

Page 17: ...has a refrigerant leak If the evacuation level raises to 1100 microns and stabilizes then the system has moisture in it and should be dehydrated as GTAC2 5 recommends If the system continues to rise...

Page 18: ...ig Suction Temperature 50HE501045 C 115F 46 1C 105F 40 6C 95F 35 0C 85F 29 4C 75F 23 9C 65F 18 3C 55F 12 8C 45F 7 2C COOLING CHARGING CHART 15 and 17 5 Ton Circuit A F 35 40 45 50 55 60 65 70 75 80 85...

Page 19: ...on Temperature 50HE501089 C 115F 46 1C 105F 40 6C 95F 35 0C 85F 29 4C 75F 23 9C 65F 18 3C 55F 12 8C 45F 7 2C COOLING CHARGING CHART 20 Ton Circuit A F 35 40 45 50 55 60 65 70 75 80 85 90 95 100 C 1 7...

Page 20: ...0 90 0 80 0 50HE501091 C 115F 46 1C 105F 40 6C 95F 35 0C 85F 29 4C 75F 23 9C 65F 18 3C 55F 12 8C 45F 7 2C COOLING CHARGING CHART 25 0 Ton Circuit A F 45 50 55 60 65 70 75 80 85 90 95 100 C 7 2 10 5 1...

Page 21: ...21 Fig 29 Cooling Charging Chart 27 5 Ton Circuit A Fig 30 Cooling Charging Chart 27 5 Ton Circuit B COOLING CHARGING CHART 27 5 Ton Circuit A COOLING CHARGING CHART 27 5 Ton Circuit B...

Page 22: ...R DRIER Use the following steps to replace the filter drier 1 Using a Puron R 410A gage set recover all refrigerant from the system 2 Use a tubing cutter to remove the filter drier from the line NOTE...

Page 23: ...filter Unit undersized for load Decrease load or replace with larger unit Thermostat set too low Reset thermostat Low refrigerant charge Locate leak repair and recharge Leaking valves in compressor Re...

Page 24: ...f primary power source is a custom er option If local codes permit the transformer primary leads can be connected at the line side terminals on a unit mounted non fused disconnect or circuit breaker s...

Page 25: ...ation to confirm full closing and latching Fig 34 Weatherproof Cover Installation SMOKE DETECTORS Smoke detectors are available as factory installed options on 48TC models Smoke detectors may be speci...

Page 26: ...nal an alarm state but dust and debris accumulated over time does not For installations using two sensors the duct smoke detector does not differentiate which sensor signals an alarm or trouble condit...

Page 27: ...al board CTB all unit oper ations cease immediately PREMIERLINK AND RTU OPEN CONTROLS Unit operating functions fan cooling and heating are terminated as described above Highlight D On smoke alarm cond...

Page 28: ...onsid ered 100 dirty and requires cleaning or replacing Use a field provided SD MAG test magnet to initiate a sensor dirty test The sensor s Dirty LED indicates the results of the dirty test as shown...

Page 29: ...n the duct smoke sensor when the Dirty LED is flashing con tinuously or sooner if conditions warrant 1 Disconnect power from the duct detector then remove the sensor s cover See Fig 42 Table 6 Dirty L...

Page 30: ...ne is pulled to ground Trouble state The SuperDuct duct smoke detector enters the trouble state under the following conditions A sensor s cover is removed and 20 minutes pass before it is properly sec...

Page 31: ...has internal linebreak motor protection Reset is automatic after compressor motor has cooled OVERTEMPERATURE Each compressor has an internal protector to protect it against ex cessively high discharg...

Page 32: ...rol For details on operating units equipped with the factory installed PremierLink controller option refer to the PremierLink Retrofit Rooftop Controller Version 3 x Installation Start Up and Config u...

Page 33: ...at the IGC circuit will initiate an Ignition Fault 5 flashes lockout Reset of the low pressure switch is automatic on rise in supply line pressure Reset of the IGC re quires a recycle of unit power af...

Page 34: ...move the motor cooling fan by removing one setscrew 5 Remove the nuts that hold the motor to the mounting plate 6 To reinstall reverse the procedure outlined above Burners and Igniters MAIN BURNERS To...

Page 35: ...brush to clean the burners and cross over port as required 4 Adjust the spark gap The gap should be 0 12 to 0 14 in 3 06 to 3 60 mm and spaced 0 18 in 4 60 mm from the end of the burner See Fig 55 5 I...

Page 36: ...nifold pressure 7 When the main burners ignite check all fittings manifold and orifices for leaks 8 Adjust the high stage pressure to the specified setting by turn ing the plastic adjustment screw clo...

Page 37: ...t 5 seconds LEGEND LED Light Emitting Diode A 3 second pause exists between LED error code flashes If more than one error code exists all applicable codes will be displayed in numerical sequence Orifi...

Page 38: ...pical MRT Spark Adjustment 0 18 4 60 mm 0 12 0 14 3 05 3 56 mm SPARK GAP NOTE SPARK GAP MUST BE AT THE BOTTOM OF THE BURNER IGNITER AND SENSOR LOCATIONS BRACKET HEAT COVER NOT SHOWN FOR CLARITY 9 CELL...

Page 39: ...7 LH32RF104 0 1040 38 LH32RF102 0 1015 39 LH32RF103 0 0995 40 LH32RF098 0 0980 41 LH32RF096 0 0960 42 LH32RF094 0 0935 43 LH32RF089 0 0890 44 LH32RF086 0 0860 45 LH32RF082 0 0820 46 LH32RF080 0 0810 4...

Page 40: ...40 Fig 56 Typical IGC Wiring Diagram...

Page 41: ...41 Fig 57 Integrated Gas Control IGC Board RED LED STATUS...

Page 42: ...og input J1 1 3 FS T1 Flame sensor gas section switch input W Heat stage 1 LCTB 24 VAC J2 2 RS Rollout switch gas section switch input J2 5 6 LS Limit switch fan section switch input J2 7 8 CS Centrif...

Page 43: ...000 351 186 000 351 240 000 11 000 3353 372 123 200 372 173 600 372 224 000 12 000 3658 372 114 400 372 161 200 372 208 000 13 000 3962 392 105 600 392 148 800 392 192 000 14 000 4267 392 96 800 392 1...

Page 44: ...ter in gas line Drain water and install drip leg to trap water No power to furnace Check power supply fuses wiring and circuit breaker No 24 v power supply to control circuit Check transformer Transfo...

Page 45: ...Off Power reset for LED reset 4 consecutive limit switch faults within a single call for heat See Limit Switch Fault 5 Flashes Ignition Fault No gas heating Heat call W Off Power reset for LED reset U...

Page 46: ...conoMi er 2 Component Locations IMPORTANT Any economizer that meets the economizer re quirements as laid out in California s Title 24 mandatory sec tion 120 2 fault detection and diagnostics and or pr...

Page 47: ...47 Fig 62 RTU Open Overlay for Economizer Wiring...

Page 48: ...48 Fig 63 VFD Overlay for W2770 Controller Wiring...

Page 49: ...ion for economizer to operate 2 PremierLink control requires that the standard 50HJ540569 out side air sensor be replaced by either the CROASENR001A00 dry bulb sensor or HH57A077 enthalpy sensor 3 50H...

Page 50: ...ir sensor signal Modulation is based on the DCV signal Modulation is based on the greater of DCV and supply air sensor signals between minimum position and either maximum position DCV or fully open su...

Page 51: ...above the setpoint the EconoMi er IV will adjust the outside air dampers to minimum position If the outdoor air temperature is below the setpoint the position of the outside air dampers will be contro...

Page 52: ...When using this mode of changeover control turn the enthalpy setpoint potentiometer fully clockwise to the D setting INDOOR AIR QUALITY IAQ SENSOR INPUT The IAQ input can be used for demand controlle...

Page 53: ...EconoMi er IV controller the minimum position of the damper can be controlled from a remote location To control the minimum damper position remotely remove the factory installed jumper on the P and P1...

Page 54: ...e normal operation CRENTDIF004A00 and CRTEMPSN002A00 accessories are used on many different base units As such these kits may contain parts that will not be needed for installation 33ZCSENCO2 is an ac...

Page 55: ...oting DCV MINIMUM AND MAXIMUM POSITION To check the DCV minimum and maximum position 1 Make sure EconoMi er IV preparation procedure has been performed 2 Connect a 9 v battery to AQ positive node and...

Page 56: ...30 vac RMS 50 60 Hz Transformer 100 va maximum system input Nominal Power Consumption at 24 vac 60 Hz 11 5 VA without sensors or actuators Relay Digital Output Rating at 30 vac maximum power from Clas...

Page 57: ...CT 2 10 2 10 vdc Damper Actuator Output 2 10 vdc ACT COM COM Damper Actuator Output Common ACT 24v 24 vac Damper Actuator 24 vac Source NA AUX2 OCC E GND EXH1 AUX1 O Y2 Y1 Y2 O Y1 O C R 50048848 002 R...

Page 58: ...a menu s item and return to the list of menus Fig 79 W7220 Controller Navigation Buttons To use the keypad when working with Setpoints System and Ad vanced Settings Checkout tests andAlarms 1 Navigat...

Page 59: ...c on terminal Y1 I COOL Y1 OUT OFF ON OFF FIRST STAGE COOLING RELAY OUTPUT Cool stage 1 Relay Output to stage 1 mechanical cooling Y1 OUT terminal COOL Y2 IN OFF ON OFF SECOND STAGE COOLING DEMAND Y2...

Page 60: ...ressor lockout At or below the set point the Y1 O and Y2 O will not be energized on the controller DRYBLB SET 63 F 17 C 48 F to 80 F 9 C to 27 C increment by 1 F OA DRY BULB TEMPERATURE CHANGEOVER SET...

Page 61: ...mode for W Shutdown is not available in 2 speed fan mode In HP O B mode HP O energize heat pump on Cool default HP B energize heat pump on heat FAN SPEED 2 speed 1 speed 2 speed Sets the economizer c...

Page 62: ...Allows for operator to adjust for an out of calibration humidity sensor DA T CAL 0 0 F 2 5 F DISCHARGE AIR TEMPERATURE CALIBRATION Allows for the operator to adjust for an out of calibration temperat...

Page 63: ...T ERR RETURN AIR S BUS SENSOR ERROR Return air enthalpy sensor has failed or become disconnected check wiring then replace sensor if the alarm continues RA SYLK H ERR DA SYLK T ERR DISCHARGE AIR S BUS...

Page 64: ...Closed On On High 24 v On 24 v On MIN POS Closed Yes Off Off High 0 v Off 0 v Off MIN POS Closed On Off High 0 v Off 0 v Off MIN POS to Full Open Closed to Full Open On On High 24 v On 0 v Off MIN PO...

Page 65: ...Off High 0 v Off 0 v Off MIN POS Closed On Off High 0 v Off 0 v Off MIN POS to Full Open Closed to Full Open On On High 24 v On 0 v Off MIN POS to Full Open Closed to Full Open Table 31 Enthalpy Oper...

Page 66: ...Y2 I FAN SPEED Y1 O Y2 O OCCUPIED UNOCCUPIED Below CO2 Set No OFF OFF LOW 0v Off 0v Off VENTMIN Closed ON OFF LOW 24v On 0v Off VENTMIN Closed ON ON HIGH 24v On 24v On VENTMIN Closed Yes OFF OFF LOW...

Page 67: ...he supply fan and controls the OAdamper to the required posi tion see Table 36 The W heating mode is not controlled by the W7220 but it re quires the status to know where to position the OA damper for...

Page 68: ...the Checkout menu using the and buttons 2 Press the Enter button to select the item RUN appears 3 Press the Enter button to start the test The unit pauses and then displays IN PROGRESS When the test...

Page 69: ...f output operation Controller configuration is also part of start up This is especially important when field accessories have been added to the unit The factory pre configures options in stalled at th...

Page 70: ...ve room temperature and verify that the burners light and evaporator fan is energized Check heating ef fect then lower the thermostat setting below the room temperature and verify that the burners and...

Page 71: ...ing this period the evaporator fan off delay will increase by 15 seconds A maxi mum of 9 trips can occur extending the evaporator fan off delay to 180 seconds To restore the original default value res...

Page 72: ...ard Q E coat Al Cu E coat Al Cu Louvered Hail Guard R Cu Cu Al Cu Louvered Hail Guard S Cu Cu Cu Cu Louvered Hail Guard Coil Options Novation Outdoor Indoor Hail Guard G Al Al Al Cu H Al Al Cu Cu J Al...

Page 73: ...Cu E coat Al Cu E Cu Cu Al Cu F Cu Cu Cu Cu M Al Cu Al Cu Louvered Hail Guard N Precoat Al Cu Al Cu Louvered Hail Guard P E coat Al Cu Al Cu Louvered Hail Guard Q E coat Al Cu E coat Al Cu Louvered Ha...

Page 74: ...3 7 Max BHP 3 7 RPM Range 679 863 Max blower shaft RPM 1200 Motor frame size 56 Fan qty Type 2 Centrifugal Fan diameter in 15 x 15 High Static Motor qty Belt qty Drive type 1 1 Belt Nominal nameplate...

Page 75: ...or drive type 3 direct 3 direct 4 direct 4 direct Motor HP RPM 1 4 1100 1 4 1100 1 4 1100 1 4 1100 Fan diameter in 22 22 22 22 FILTERS RA filter size in 6 20 x 25 x 2 6 20 x 25 x 2 6 20 x 25 x 2 9 16...

Page 76: ...ugal 2 Centrifugal 2 Centrifugal 2 Centrifugal Fan diameter in 15 x 15 15 x 15 15 x 15 15 x 15 Medium Static Motor qty Belt qty Drive type 1 1 Belt 1 1 Belt Nominal nameplate HP 3 7 3 7 Max BHP 3 7 3...

Page 77: ...17 2 17 2 17 Total face area ft2 21 4 21 4 21 4 21 4 COND FAN MOTOR Qty Motor drive type 3 direct 3 direct 3 direct 3 direct Motor HP RPM 1 4 1100 1 4 1100 1 4 1100 1 4 1100 Fan diameter in 22 22 22 2...

Page 78: ...Belt qty Drive type 1 1 Belt Nominal nameplate HP 5 0 Max BHP 208 230 460 575v 6 5 6 9 7 0 8 3 RPM Range 751 954 Max blower shaft RPM 1300 Motor frame size 56 Fan qty Type 2 Centrifugal Fan diameter...

Page 79: ...t 4 direct 4 direct 6 direct Motor HP RPM 1 4 1100 1 4 1100 1 4 1100 1 4 1100 1 4 1100 Fan diameter in 22 22 22 22 22 FILTERS RA filter size in 6 20 x 25 x 2 6 20 x 25 x 2 9 16 x 25 x 2 9 16 x 25 x 2...

Page 80: ...entrifugal Fan diameter in 18 x 15 15 X 11 18 x 15 15 X 11 18 x 15 15 X 11 18 x 15 15 X 11 Medium Static Motor qty Belt qty Drive type 1 1 Belt 1 1 Belt 1 1 Belt 1 1 Belt Nominal nameplate HP 3 7 3 7...

Page 81: ...e 3 direct 3 direct 4 direct 4 direct Motor HP RPM 1 4 1100 1 4 1100 1 4 1100 1 4 1100 Fan diameter in 22 22 22 22 FILTERS RA filter size in 6 20 x 25 x 2 6 20 x 25 x 2 6 20 x 25 x 2 6 20 x 25 x 2 OA...

Page 82: ...6 9 7 0 8 3 RPM Range 835 1021 835 1021 755 923 755 923 Max blower shaft RPM 1100 1100 1100 1100 Motor frame size 184T 184T 184T 184T Fan qty Type 2 Centrifugal 2 Centrifugal 2 Centrifugal 2 Centrifug...

Page 83: ...115 195 115 195 115 195 115 Temperature rise 30 60 30 60 30 60 30 60 30 60 HIGH of stages of burners total 2 10 2 10 2 10 2 10 2 10 Connection size 3 4 in NPT 3 4 in NPT 3 4 in NPT 3 4 in NPT 3 4 in...

Page 84: ...closes 195 115 195 115 195 115 195 115 Temperature rise 30 60 30 60 30 60 30 60 HIGH of stages of burners total 2 10 2 10 2 10 2 10 Connection size 3 4 in NPT 3 4 in NPT 3 4 in NPT 3 4 in NPT Rollout...

Page 85: ...804 2 78 863 3 24 6400 634 1 81 701 2 20 765 2 64 826 3 10 883 3 59 6750 662 2 07 725 2 49 787 2 94 846 3 42 902 3 92 7150 694 2 42 754 2 85 813 3 31 869 3 81 923 4 33 7500 722 2 74 779 3 19 836 3 67...

Page 86: ...21 8300 787 3 62 839 4 09 891 4 61 941 5 16 990 5 73 8750 825 4 18 874 4 68 923 5 22 971 5 78 1018 6 38 CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 2 1 4 1 6 1 8 2 0 RPM BHP RPM BHP RPM BHP RPM BH...

Page 87: ...50 1011 5 97 1055 6 44 9500 911 5 32 959 5 81 1005 6 30 1048 6 79 1090 7 29 10000 954 6 15 1000 6 66 1044 7 18 1086 7 70 1126 8 22 CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 2 1 4 1 6 1 8 2 0 RPM...

Page 88: ...5 6 05 10000 934 4 85 986 5 36 1035 5 88 1082 6 40 1126 6 93 10650 988 5 78 1038 6 33 1084 6 88 1129 7 44 1172 8 00 11250 1038 6 74 1086 7 32 1130 7 91 1173 8 49 11900 1093 7 91 1138 8 52 1181 9 14 12...

Page 89: ...71 11 64 13750 1249 11 97 1289 12 67 CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 2 1 4 1 6 1 8 2 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 8250 1056 5 05 1101 5 51 1144 5 98 1185 6 45 1225 6 93 895...

Page 90: ...600 2 13 664 2 73 723 3 37 776 4 05 825 4 76 6000 629 2 47 691 3 10 747 3 77 799 4 48 6400 663 2 91 721 3 57 776 4 28 6750 693 3 34 749 4 03 801 4 76 7150 727 3 88 781 4 61 7500 757 4 40 CFM AVAILABL...

Page 91: ...792 5 06 841 5 85 888 6 68 933 7 54 8300 827 5 78 874 6 61 920 7 47 8750 867 6 69 912 7 55 CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 2 1 4 1 6 1 8 2 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 525...

Page 92: ...954 6 10 998 6 81 8500 843 4 73 896 5 45 945 6 18 991 6 93 1034 7 68 9000 886 5 52 937 6 28 984 7 06 1029 7 84 1071 8 63 9500 929 6 40 978 7 21 1024 8 02 1067 8 84 10000 973 7 38 1020 8 22 1064 9 08...

Page 93: ...00 886 5 52 937 6 28 984 7 06 1029 7 84 1071 8 63 9500 929 6 40 978 7 21 1024 8 02 1067 8 84 10000 973 7 38 1020 8 22 1064 9 08 10500 1017 8 45 1062 9 33 11000 1061 9 63 11500 CFM AVAILABLE EXTERNAL S...

Page 94: ...tandard Static 954 934 913 893 873 853 832 812 792 771 751 Medium Static 1175 1155 1135 1114 1094 1074 1054 1034 1013 993 973 High Static 1299 1271 1242 1214 1185 1157 1129 1100 1072 1043 1015 Factory...

Page 95: ...84 F D20 208 230 3 60 50HE500751 K 50HE500889 L 50HE502181 F 50HE502186 D 460 3 60 50HE500752 L 50HE502183 F 575 3 60 50HE500888 L 50HE502184 F D24 208 230 3 60 50HE500751 K 50HE500889 L 50HE502181 F...

Page 96: ...96 Fig C 48TC D17 D30 Control Diagram 208 230 3 60 460 3 60 575 3 60 APPENDIX D WIRING DIAGRAMS...

Page 97: ...97 Fig D 48TC D17 D30 Power Diagram 208 230 3 60 APPENDIX D WIRING DIAGRAMS...

Page 98: ...98 Fig E 48TC D17 D30 Power Diagram 460 3 60 APPENDIX D WIRING DIAGRAMS...

Page 99: ...99 Fig F 48TC D17 D30 Power Diagram 575 3 60 APPENDIX D WIRING DIAGRAMS...

Page 100: ...100 Fig G 48TC D17 D30 Control Diagram with Humidi MiZer System APPENDIX D WIRING DIAGRAMS...

Page 101: ...101 Fig H 48TC D17 D30 Power Diagram 208 230 3 60 with Humidi MiZer System APPENDIX D WIRING DIAGRAMS...

Page 102: ...102 Fig I 48TC D17 D30 Power Diagram 460 3 60 with Humidi MiZer System APPENDIX D WIRING DIAGRAMS...

Page 103: ...103 Fig J 48TC D17 D30 Power Diagram 575 3 60 with Humidi MiZer System APPENDIX D WIRING DIAGRAMS...

Page 104: ...104 Fig K PremierLink System Control Wiring Diagram APPENDIX D WIRING DIAGRAMS...

Page 105: ...105 Fig L PremierLink System Control Wiring Diagram with Humidi MiZer System APPENDIX D WIRING DIAGRAMS...

Page 106: ...106 Fig M RTU OPEN Wiring Diagram APPENDIX D WIRING DIAGRAMS...

Page 107: ...107 Fig N RTU OPEN Wiring Diagram with Humidi MiZer System APPENDIX D WIRING DIAGRAMS...

Page 108: ...108 Fig O Motormaster Sensor Locations D17 D20 and D24 Fig P Motormaster Sensor Location D28 D30 SENSOR LOCATION SENSOR LOCATION APPENDIX E MOTORMASTER SENSOR LOCATIONS...

Page 109: ......

Page 110: ...t to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53480288 01 Printed in U S A Form 48TC 17 30 02SM Pg 110 10 2020 Replace...

Page 111: ...door air filters are clean and in place Y N _____ Verify that unit installation is level Y N _____ Check fan wheels and propeller for location in housing orifice and setscrew tightness Y N _____ Check...

Page 112: ...pressure _______________ PSIG C Entering air temperature _______________ F D Liquid line temperature at outlet or reheat coil _______________ F E Confirm correct rotation for compressor Y N _____ F Ch...

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Carrier 48TC series, Service And Maintenance Instructions

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