Carrier 48PG20---28 Controls, Start-Up, Operation, Service And Troubleshooting Instructions Download

Page: 1 / 112

Summary of Contents for 48PG20---28

Page 1: ...OR FANS Gas Heating 48PC Units 42 THERMOSTAT CONTROL SPA E SENSOR ONTROL SUPPLY AIR TEMPERATURE SAT SENSOR Electric Heat 50PG Units 44 THERMOSTAT CONTROL SPA E SENSOR ONTROL SUPPLY AIR TEMPERATURE SAT...

Page 2: ...ic modules or electrical components 1 hnproper installation adjusnnent alteration service or maintenance can cause property damage personal injury or loss of lii_ Refer to the User s Information Manua...

Page 3: ...ased on the Scrolling Marquee display See Table 2 for the 1rlenu strllcture The four keys are used to navigate through the display structure ahich is organized in a tiered mode structure If the button...

Page 4: ...ng configuration points tbr the lo cal display Scrolling Marquee or Navigator TM accessory will be used in this manual Point names wilt be written with the Mode nmne thst then any submodes then the po...

Page 5: ...t Temp CC LO Heating Lockout Temp HTLO Econo Cool Hi Temp Limit EH LO 4 Econo CoolLo Temp Limit ELLO 4 Free Cool Low Temp Limit FC LO Low Cool SAT Set Point LCSR 4 High Cool SAT Set Point HCSP 4 Minim...

Page 6: ...valves aaldTXM Evaporator Fan Fan belt and variable pulleys are factory installed See Tables 3 26 for tan performance data Be sure that fans rotate in the proper direction See Tables 27 and 28 for ai...

Page 7: ...y Installation Check to make sure that all accessories including space thermostats and sensors have been installed and wired as required by the instructions and unit wiring diagrams AIRFLOW Cfm 5000 5...

Page 8: ...1041 1079 1119 C 1160 D 1202 Bhp Rpm 2 82 949 3 27 979 3 79 B 1011 4 35 1046 4 98 1082 5 67 1119 C 6 42 1158 7 23 1198 D 8 12 1238 AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 8 1 4 Bhp 306 354 407 465...

Page 9: ...0 8500 9000 A 1003 B 1041 1079 1119 C 1160 D 1202 1 2 Rpm 900 933 967 Bhp 282 327 379 435 498 567 642 723 812 Rpm 949 979 B 1011 1046 1082 1119 C 1158 1198 D 1238 1 4 Bhp Rpm 3 06 995 3 54 1023 4 07 B...

Page 10: ...0 7 500 8 000 8 500 9 000 9 500 10 000 Rpm A 921 954 988 B 1024 1060 1098 C 1137 1176 1216 D 1256 1 2 Bhp 3 21 3 70 4 25 4 85 5 51 6 23 7 01 7 86 8 77 9 75 Rpm 968 999 B 1032 1066 1101 C 1138 1175 121...

Page 11: ...0 7 500 8 000 8 500 9 000 9 500 10 000 A B C D Rpm 933 967 1003 4 35 1041 4 98 1079 5 67 C 1119 6 42 1160 7 23 1202 8 12 D 1244 9 07 1287 10 10 Bhp 3 27 3 79 B Rpm 979 1011 1046 1082 1119 1158 1198 12...

Page 12: ...0 6 500 7 000 7 500 8 000 8 500 9 000 9 500 10 000 A B C D Rpm 933 967 1003 1041 1079 1119 1160 1202 1244 1287 1 2 Bhp 327 379 435 498 567 642 723 812 907 1010 Rpm 979 1011 B 1046 1082 1119 C 1158 119...

Page 13: ...9 1008 11 25 12 51 AVAILABLE EXTERNAL STATIC PRESSURE AIRFLOW 1 2 Cfm 6 500 7 000 7 500 8 000 8 500 9 000 9 500 10 000 10 500 11 000 11 500 12 000 12 500 B C Rpm 988 1024 1063 5 78 1104 6 55 1146 7 41...

Page 14: ...45 11 68 13 01 AVAILABLE EXTERNAL STATIC PRESSURE in wg AIRFLOW 1 2 1 8 Cfm 6 500 7 000 7 500 8 000 8 500 9 000 9 500 10 000 10 500 11 000 11 500 12 000 12 500 B C D Rpm 1004 1041 1081 1124 1168 1214...

Page 15: ...045 11 68 13 01 AVAILABLE EXTERNAL STATIC PRESSURE AIRFLOW 1 2 Cfm 6 500 7 000 7 500 8 000 8 500 9 000 9 500 10 000 10 500 11 000 11 500 12 000 12 500 B C D Rpm 1004 1041 1081 1124 1168 1214 1260 1308...

Page 16: ...00 6000 6500 7000 7500 8000 8500 9000 B C Rpm 865 886 910 935 961 989 1018 1048 1079 1 2 Bhp 264 302 344 390 440 496 556 622 693 Rprn Bhp A 918 291 938 331 960 374 B 984 422 1008 474 1035 531 1062 593...

Page 17: ...0 8 000 8 500 9 000 9 500 10 000 A B C Rpm 886 910 935 961 989 1018 1048 1079 1112 1145 1 2 Bhp 3 02 3 44 3 90 4 40 4 96 5 56 6 22 6 93 7 70 8 52 1 4 Rpm Bhp A 938 3 31 960 3 74 984 4 22 B 1008 4 74 1...

Page 18: ...W Cfm 6 500 7 000 7 500 8 000 8 500 9 000 9 500 10 000 10 500 11 000 11 500 12 000 12 500 B C D Rpm 934 967 1003 1041 1081 1121 1161 1202 1242 1282 1322 1 2 1 4 Bhp Rpm 405 978 B 461 1007 525 1040 596...

Page 19: ...91 8 63 AIRFLOW Cfm 5000 5500 6000 6500 7000 7500 8000 8500 9000 Rpm F 1112 1171 G 1232 H 1295 1360 1 2 Bhp 388 467 557 661 7 80 Rpm F 1156 G 1212 1271 H 1333 1396 AVAILABLE EXTERNAL STATIC PRESSURE i...

Page 20: ...8 Rpm Bhp Rprn Bhp Rpm Bhp Rpm 1174 445 1218 484 G 1259 523 G 1300 1 0 Rpm Bhp 1083 369 1145 4 49 1210 541 1276 647 1344 7 68 AIRFLOW Cfm 5000 5500 6000 6500 7000 7500 8000 8500 9000 F G H Rpm Bhp 11...

Page 21: ...FLOW Cfm 5000 5500 6000 6500 7000 7500 8000 8500 9000 Rpm Bhp F 1130 407 G 1189 490 1251 585 H 1315 694 1381 8 18 1 2 Rpm 1174 AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 4 1 6 1 8 Bhp Rpm Bhp Rpm 4 45...

Page 22: ...W 1 2 1 4 1 6 1 8 2 0 Cfm Bhp Rpm Bhp Rpm Bhp Rpm 4 67 G 1212 506 G 1253 547 H 1292 1 0 Rpm Bhp 1127 428 1191 516 1256 617 1323 732 1391 8 63 5 500 6 000 6 500 7 000 7 500 8 000 8 500 9 000 9 500 10 0...

Page 23: ...8 8 01 H 7 19 8 53 1 0 Rpm Bhp 1145 449 1210 541 1276 647 1344 7 68 5 500 6 000 6 500 7 000 7 500 8 000 8 500 9 000 9 500 10 000 Rpm G 1189 1251 H 1315 1381 LEGEND 1 2 Bhp 490 585 694 8 18 Rpm 1232 12...

Page 24: ...7 68 AVAILABLE EXTERNAL STATIC PRESSURE in wg AIRFLOW 1 8 Cfm 5 500 6 000 6 500 7 000 7 500 8 000 8 500 9 000 9 500 10 000 Rpm G 1189 1251 H 1315 1381 LEGEND 1 2 Bhp 4 90 5 85 6 94 8 18 Rpm G 1232 H...

Page 25: ...ABLE EXTERNAL STATIC PRESSURE AIRFLOW 1 2 Cfm 6 500 7 000 7 500 8 000 8 500 9 000 9 500 10 000 10 500 11 000 11 500 12 000 12 500 F G H Rpm 988 1024 1063 1105 1149 1194 1242 1290 1340 1391 Bhp 4 49 5...

Page 26: ...13 28 AIRFLOW Cfm 6 500 7 000 7 500 8 000 8 500 9 000 9 500 10 000 10 500 11 000 11 500 12 000 12 500 F G Rpm 1005 1041 1080 1122 1167 1214 1262 1312 1363 AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 2...

Page 27: ...3 28 AVAILABLE EXTERNAL STATIC PRESSURE AIRFLOW 1 2 Cfm 6 500 7 000 7 500 8 000 8 500 9 000 9 500 10 000 10 500 11 000 11 500 12 000 12 500 Bhp Rpm F 1005 1041 1080 G 1122 1167 1214 H 1262 1312 1363 L...

Page 28: ...5500 6000 6500 7000 7500 8000 8500 9000 E F G Rpm 862 886 916 949 984 1021 1059 1099 1138 1 2 Bhp 260 297 341 390 446 507 574 647 726 1 4 Rpm 917 935 960 990 1023 1059 1095 1133 1172 Bhp 289 325 369...

Page 29: ...000 7 500 8 000 8 500 9 000 9 500 10 000 E F G H Rpm 886 916 949 984 1021 1059 1099 1138 1179 1220 1 2 Bhp 2 97 3 41 3 90 4 46 5 07 5 74 6 47 7 26 8 12 9 04 E F G H Rpm 935 960 990 1023 1059 1095 113...

Page 30: ...drive ranges E Low Range 687 873 5 75 Bhp F Mid Low Range 805 1007 5 75 Bhp G Mid High Range 941 1176 863 Bhp H High Range 1014 1297 11 50 Bhp All other rpms require field supplied motor or drive 2 Se...

Page 31: ...0 460 575 MAX WATTS 3700 3700 3700 5015 4578 5115 5115 5015 6456 7169 7586 7586 8284 8708 9330 9711 N A N A N A N A 3700 3700 3700 5015 4578 5115 5115 5015 6458 7169 7586 7586 3700 3700 3700 5015 4578...

Page 32: ...0 220 220 116 8 4 280 280 150 120 158 154 77 6 0 158 154 77 6 0 220 220 116 8 4 280 280 150 120 Table 30 Evaporator Fan Motor Specifications 50PG20 28 Units UNIT 5OPG DRIVE Low ORIENTATION Vertical Mi...

Page 33: ...e maximum ratings shown will not result in nuisance tripping or premature motor fail ure Unit warranty will not be affected EFFICIENCY MAX BNP 858 426 858 426 858 426 875 588 875 537 875 800 875 800 8...

Page 34: ...Fan Performance tame to determine blower rpm bhp and watts Table 33 Fan RPM At Motor Pulley Settings 48PG20 28 Units UNIT 48PG 20 and 24 230 and 460 volt 20 and 24 575 volt 28 all voltages Approximate...

Page 35: ...box Rel r to Field Installed Accessories section The l_Mt Control Type configuration Configuration _UNIT _U TL must be set to Space Sensor 3 The jumper wire in the installer s packet must be connecte...

Page 36: ...setting the schedule SERVICE TEST The Service Test function can be used to verify proper oper ation of compressors heating stages indoor tan outdoor finis power exhaust tans economizer and atann rela...

Page 37: ...cepted UNC 1 22 30 Period Unoccupied Time Item Value Units scrolls again MON I NO Monday In Period NO Scrolling stops YES Select YES YES Change accepted MON I YES Monday in Period ItemNalue Units scro...

Page 38: ...ource for dry contact Humidity Sensor For units with the factory Humidi MiZer option and the economizer option with the ECB econo mizer control board the humidity sensor input is provided on the field...

Page 39: ...are located on the display at two locations Run Status _ MODE and Operating Modes _ MODE System Mode SYS In Run Stares the current system mode is displayed as a number with expandable text In Operatin...

Page 40: ...ting Factor TCS H This factor is used in the equation of the Temperature Compen sated Start Time Bias for heating A setting of 0 minutes indicates Temperature Compensated Start in Heating is not permi...

Page 41: ...cono mizer is cooling Cooling begins when the Y1 input is ener gized The economizer will try to provide cooling as described in the Economizer section If the economizer is not available for cooling or...

Page 42: ...eld replacement of a control board occurs and the settings need to be checked or manually config ured Outdoor fan operation is further described below to assist in troubleshooting Units Without Humidi...

Page 43: ...onal heat is required and the MBB senses that W2 is On the MBB will turn on the HT 2 relay which sends power to the second stage of the main gas valve If the thenno star relnoves the call for W2 the u...

Page 44: ...output During cominuous tan the indoor tan will follow the G input If the user has selected Adaptive see Cooling section tbr thermostat mode the algorithln will follow the configurable delays for add...

Page 45: ...m Unoccupied Free Cooling bnfiguration E_DN UEFC Free Cool ing Preoccupancy Time Configuration _E ON _FC TM and Free Cool Low Ternp Limit bnfiguration _ ECON _FC LO bnfiguration _E_ON _UEFC 0 Disabled...

Page 46: ...that circuit Aalways operate when circuit Bison This applies tonormal operation service test and forcontrol alarm respons es This operation difference isrequired due tothe tactthat the Motonnaster out...

Page 47: ...ed REHT Set to Yes tbr Hmnidi MiZer equipped units Enables Humidi MiZer operating modes and service test Reheat2 Stage Decr Time R DEC If using adaptive con trol mode then this is a time delay in stag...

Page 48: ...ill turn on circuits A and B in Reheat2 mode Service Test HMZR CRC Cool Reheatl Valve Test A value of On will turn on the CRC relay This will energize RH1 A and RH1 B Set vice Test HMZR RHV A Reheat2...

Page 49: ...onfiguration AIR Q AQ MN while the higher is referred to as Econo mizer Minhnum Position ECMN The AQ MN should be set to an economizer position that brings in enough fiesh air to relnove contaminants...

Page 50: ...izer Override Position OUTDOOR AIR QUALITY Analog Input The ComJbrtLink control is configured for outdoor air quality sen sors which provide 4 to 20 mA for 0 to 2000 ppm If a sensor has a different ra...

Page 51: ...e unit controlled as in an occupied state Once set Temperature Compensated mode wilt stay on until the unit goes into the Occupied mode The Start Bias Time will be written into the CCN Linkage Equipme...

Page 52: ...striking alerts for refiigerant circuits until the circuit has been shut do a_ due to 3 strikes Set the cooling configuration of Alert Each Strike bnfiguration4DOL _ALM N on display ALM NOW on CCN to...

Page 53: ...gerant or faulty suction pressure transducer T126 Circuit A High Refrigerant Pressure Shutdown Circuit A Automatic An overcharged system high outdoor ambient temperature coupled with dirty outdoor coi...

Page 54: ...check LEN connections for potential colrnnunication errors J3 and J4 connectors Colrnnunication between modules is accomplished by a 3 wire sensor bus These 3 wires run in parallel tiom module to modu...

Page 55: ...air sensor There is no control action as a result of this alert This alert resets automatically The cause of the alert is usually a thulty thennistoi a shorted or open thennistor caused by a wiring er...

Page 56: ...und at variable Configuration _U VlT _FS SVK Verify that the con figmration is set correct verify the wiring and auxiliary device This alarm resets automatically Alert Code T408 Dirty Air Filter This...

Page 57: ...Veril_ any unique control conligurations per in stalled site requirements or accessories If alarms conditions are corrected and cleared operation of the compressors and fmls may be verified by using...

Page 58: ...irflow Temperature too low in conditioned area low return air temperature Power disconnect Check using ComfortLink TM Scrolling Marquee Check using ComfortLink ScroIling Marquee Check Compressor Locko...

Page 59: ...g Service Analysis Table 44 See No Dehumidification Demand below See RH1 Valve Operation below See Cooting Service Analysis Table 44 See No Dehumidification Demand below See RH1 Valve Operation beIow...

Page 60: ...zer is operating correctly Adjust unit occupied schedule if incorrect otherwise economizer is operating correctly Economizer is operating correctly Identify the obstruction and safely remove Enter Ser...

Page 61: ...ng instrument Insulate thennocou pie to avoid ambient temperatures tioln inlluencing reading Temperature measured by thennocouple and telnperature determined fiom thermistor voltage reading should be...

Page 62: ...s Internal Controt Lockout No gas heating Power reset IGC has sensed internal hardware or software error If fault is not cteared by resetting 24 v power replace the IGC 9 Flashes Temporary Software Lo...

Page 63: ...L I B FECT 8_ SOR 8END_ _ SIGNAL TO 1ERM_ N J f ON IQC IF LI_ S_ AND ROLLOUT SWITCH ARE CLOSED K_C LOGIC _a_ L INITIATE tGNmON SEQUENCE 4 IGC SAFETY LOGIC OPENS GAS I VhLVE FOR 5 SCE_ONOS I HIGH VOLTA...

Page 64: ...surelnent device Transducer Troubleshooting The electronic con trol uses salction pressure transducers to measure the suction pressure of the refrigerant circuits The pressure voltage char acteristics...

Page 65: ...379 2 349 2 319 2 290 2 260 2 231 2 202 2 173 2 144 2 115 2 087 2 059 2 030 2 003 1 975 1 948 1 921 1 894 1 867 1 841 1 815 1 789 1 763 1 738 1 713 1 688 1 663 1 639 1 615 1 591 1 567 1 544 1 521 1 49...

Page 66: ...108 0 934 109 0 916 110 0 903 111 0 888 112 0 873 113 0 858 114 0 843 115 0 829 116 0 815 117 0 801 118 0 787 119 0 774 120 0 761 121 0 748 122 0 735 123 0 723 124 0 710 125 0 698 126 0 686 127 0 674...

Page 67: ...perating sot_vare and con trois the operation of the unit The MBB continuously monitors input output channel information received t_om its inputs mad fiom the Economizer Control Board ECB The MBB re c...

Page 68: ...68...

Page 69: ...69...

Page 70: ...I I 22 I I i i o_l L_ i i _ E U E 0 0 11 I o m 4 a E o U_ 0 0 0 3 I 0...

Page 71: ...i i I I L 71...

Page 72: ..._ ELECIRIC 1 HEAT LAREL OF_3 OF_6 Fig 18 _ Power Schematic _ Units without Humidi MiZe rT_ System 72...

Page 73: ...TRAN3 2081230 460V _YEL IFC PL4 1 _BLK PL4 2 _YEL IFV PLV 3 _BLU 1 N N NLRI IRT NLRI O T TPL21 5 OFCI PL5 3 PLIO QT P_FAN BRNp_LL _ _ OFM1 _ _ I_ _BLU eYEL YEL_YEL YEL K P_21 P_2_ PL6 3 PL13 CAP1 PL...

Page 74: ...J_ zc 8 ooooo_ b z w w 0 2 o o_ q E o_ 74...

Page 75: ...I zw oi E t_ 1t N i 5 E I I 75...

Page 76: ...l Compressor CI relay or Outdoor fen 2 relax Compressor B1 relay Compressor A1 relay Crankcase heat relay or Outdoor fan 3 relay or Outdoor fan 1 relay Outdoor fan 2 relay or Reheat2 valve circuit B a...

Page 77: ...halpy switch or economizer IAQS Indoor air quality switch space or return switch input J4 4 3 IAQ Indoor air quality sensor space or return 4 20 mA J5 2 3 OAQ or Outdoor air quality sensor or economiz...

Page 78: ...l box 24 VAC SS Speed sensor gas section analog input J 1 3 FS T1 Flame sensor gas section switch input W Heat stage 1 MBB 24 VAC J2 2 RS Rotlout switch gas section switch input J2 5 6 LS Limit switch...

Page 79: ...rol economizer 2 10 VDC output 9 Economizer signal common economizer VDC J10 3 5 10 EC CP Economizer actuator digital control communication EC AP Economizer actuator analog control economizer 2 10 VDC...

Page 80: ...bles together If the communication bus is entirely within one building the resulting continuous shield must be connected to a ground at one point only The shield screw on TB2 is not acceptable for gro...

Page 81: ...ITS LEGEND CCN Carrier Comfort Network CL ComfortLink TM ControIs DAV Digital Air Volume HVAC Heating Ventilation and Air Conditioning TCU Terminal Control Unit TO I _ ADDITIONAL MINALS J DAV FAN I _...

Page 82: ...e by setting Configuration AIR O_OA CF to a value of 1 or 2 See the Indoor Air Quality section lbr more inlbnnation SMOKE DETECTORS The Slnoke detectors are field installed accessories These detectors...

Page 83: ...GND _ _ RED SPT j Z CCN COM SENSOR WIRING Fig 31 T 55 Space Temperature Sensor Wiring PIN 33ZCT55SPT x x o _ coo _ w_ _ CCN COM SENSOR WIRING JUMPER _TERMINALS AS SHOWN Fig 32 T 56 Space Temperature S...

Page 84: ...BLK I I SENSOR I SENSOR 2 SENSOR 3 _ Ii 2 II _ RED RED 4 _ SENSOR 4 SENSOR 5 SENSOR 6 _i i _ il RED RED IL 0 L BLK BLK I SENSOR 7 SENSOR 8 SENSOR 9 SPACE TEMPERATURE AVERAGING 9 T 55 SENSOR APPLICATI...

Page 85: ...nvitvnmemally So_md Coil Teaner Application Eql lip174el t 2t z gallon garden sprayer water rinse with low velocity spray nozzle Disconnect gas piping tioru unit when pressure testing at pressure reea...

Page 86: ...ence If cleaning isre qnired clean tubes withawire brush Use caution withcermnic heat exchanger baffles When in stalling retaining clip besure the center legofthe clipextends inward toward baffle See...

Page 87: ...id out to access serviceable components DO NOT SLIDE FAN DECK OUT PAST THE STOP BRACKET If further access is required the fan deck must be supported Make sure plugs and wiring are not pinched between...

Page 88: ...ored Do not mamtally operate damper motol Evacuation Proper evacuation of the system will re move noncondensables and ensure a tight dry system before charging Evacuate fiom both high and low side por...

Page 89: ...n point on chart is below line carefully re cover some of the charge Recheck suction pressure as charge is adjusted CHARGING CHART ALL CIRCUITS ALL OUTDOORFANS MUST BE OPERATING 150 00 _50 SO0 aS0 Io0...

Page 90: ...edure is complete Remove jumper tiom the outdoor motor speed controller PURON REFRIGERANT Puron refi igerant operates at 50 to 70 percent higher pressures than R 22 Be sure that servicing equiplnent a...

Page 91: ...ij _ _ S _ _ _ _ i i i o o SPARK GAP 120 TO A40 _ _K GAP 181 1 _ tL L DETAIL C Fig 47 Spark Gap Adjustment 48PG Only Table 58 Altitude Compensation 48PG20 28 NATURAL GAS PROPANE GAS ELEVATION ft 0 1 9...

Page 92: ...connections or increase the size of the breaker to correct trouble Determine the cause and correct itbefore resetting the breaker CONDENSER FAN MOTOR PROTECTION Each condenser fro1 motor is internally...

Page 93: ...Stages Indoor Fan Relay Crankcase Heat ReIay Outdoor Fan 1 Relay Outdoor Fan 2 Relay Outdoor Fan 3 Relay Cool Reheat1 Control Refrigerant Circuit A Compressors A Timeguard A Compressor A1 Feedback Com...

Page 94: ...emp nvoOutsideRH CCN TABLE RANGE UNITS SUB TABLE On Off xxx On Off On Off xxx x xxx x xxx x xxx x On Off xxx On Off On Off xxx x xxx x xxx x xxx x xxxx x x On Off On Off xxx On Off xxx xxx xxx xxx Hig...

Page 95: ...DF S_OFC_I S OFC 2 SZOFCZ3 S_COMP A S_COMP B S_COMP C S_OFC_3 S_RH1 A S_RH1 B S RH1 C 2 RH2 A S2 RH2 B S2 RH2 C S_CRC S_RH2 A S_RH2 B S_HEAT_I S_HEAT_2 WRITE STATUS Forcible Forcible Forcible Forcible...

Page 96: ...Filter Status Switch Fan Status Switch Fire Shutdown Switch Outdoor Enthalpy Switch Remote Occupancy Switch Space Humidity Switch Current Sensor Inputs Compressor A1 Feedback Compressor A2 Feedback C...

Page 97: ...Switch 1 Normal Open 2 Normal Closed Oto6O Oto6O 1 to3 1 to2 120 to 999 300 to 999 120 to 999 120 to 999 120 to 999 O to 600 0to 1OO 0to 1OO mins mins 30 2 Yes Yes No no FlOP Yes FlOP 0 no FlOP 1 FlO...

Page 98: ...n Temperature Enable Disable Enable 0 to 7 No Humidi MiZer FlOP 4 HumidFMiZer FlOP 1 0 to 7 No Humidi MiZer FlOP 6 20 2 24 28 HumidFMiZer FlOP 3 20 2 24 28 Oto 7 No Humidi MiZer FlOP 6 HumidFMiZer FlO...

Page 99: ...emp Limit Power Exhaust Installed PE Stage1 Econo Position PE Stage2 Econo Position Enthalpy Switch Economizer Travel Time Bottom Stage Max Econo Middle Stage Max Econo Top Stage Max Econo Economizer...

Page 100: ...Accept Global Holidays Override Time Limit Timed Override Hours SPT Override Enabled RANGE UNITS DEFAULT CCN TABLE SUB TABLE 0 No IAQ 0 no FlOP 1 Demand Venfilation I FlOP 2 Econ Position Override 3 E...

Page 101: ...tabte 1 to 12 January to December not in CCN table 1 to 31 not in CCN tabte xxxx not in CCN tabte 1 to 7 Monday to Sunday not in CCN table BRODEFS 1 to 12 January to December 4 1 to5 1 1 to7 7 0 to 9...

Page 102: ...2 SSP Override A Reheat2 OAT Lockout B C Reheat2 OAT Limit B C Reheat2 SSP Override B C Available Reheat2 Stages Requested Reheat2 Stages Actual Reheat2 Stages Cool Reheatl Control Reheat2 Valve A Reh...

Page 103: ...xxx Yes No 30 to 130 30 to 30 30 to 130 30 to 30 30 to 130 30 to 30 0 1 0to8 Yes No 0to4 xx xx xx xx XX XX XX XX XX XX dF dF dF dF F dF F dF F hours hh mm hh mm hh mm hh mm hh mm TRIM OCCDEFM MAINTENA...

Page 104: ...bcooling Subcooting OFF or ON OFF or ON OFF or ON CIRCUIT B OFF HGRH HGRH Subcooling SubcooIing OFF ON ON OFF HGRH HGRH Subcooling Subcooling OFF OFF or ON OFF or ON ECONOMIZER Min Position Min Positi...

Page 105: ......

Page 106: ...Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53480028 01 Printed in US A Form 48 50PG...

Page 107: ...me Compressor Min Off Time Runtime to Reset Strikes Cool Stage Decrease Rate Cool Stage Increase Rate Fan off Delay Mech Cool Circuit A Lockout Temp Circuit B Lockout Temp Circuit C Lockout Temp Alert...

Page 108: ...el 3 Fans Low Suction Control Suction OK Temperature Low Suction Level I Low Suction Level 2 Low Suction Level 3 Outdoor Fan Control OFC3 Enable CCH Disable Fan Lev0 Max Pressure Fan Levt Max Pressure...

Page 109: ...g Factor Economizer Configuration Economizer Installed Economizer Control Type Econo Minimum Position Econo CooI Max Position Econo Cool Hi Temp Limit Econo Cool Lo Temp Limit Unoccupied Free Cooling...

Page 110: ...ensor Value at 4mA RH Sensor Value at 20mA Alarm Relay Configuration SPT SPRH Sensor Failure SAT RAT Sensor Failure OAT Thermistor Failure Current Sensor Failure Compressor Failure Refrigerant Circuit...

Page 111: ...Number CCN Baud Rate CCN Broadcast Configuration CCN Time Date Broadcast CCN OAT Broadcast Global Schedule Broadcast CCN Broadcast Ack er CCN Schedule Overrides Schedule Number Accept Global Holidays...

Page 112: ...ERIFY CONFIGURATION VALUES FOR ELECTRONIC CONTROLS REFER TO CONTROL SET UP CHECKLIST VERIFY THAT CRANKCASE HEATERS HAVE BEEN ENERGIZED FOR AT LEAST 24 HOURS I1 START UP ELECTRICAL SUPPLY VOLTAGE LI L2...

Search results

Summary of Contents for 48PG20---28

Reviews:

Related manuals for 48PG20---28

Brands by name

Popular brands

Carrier 48PG20---28, Controls, Start-Up, Operation, Service And Troubleshooting Instructions

Search results

Summary of Contents for 48PG20---28

Reviews:

Related manuals for 48PG20---28

Brands by name

Popular brands