Carrier 48/50Z030-105 - page 106

106

Fig. 18 — Typical Gas Heat Unit Control Wiring (48Z055-105 Units Shown)

a48-8411

Contents

Main Controls, Start-Up, Operation, Service and Troubleshooting CONTENTS CONTENTS (cont) SAFETY CONSIDERATIONS WARNING CAUTION WARNING GENERAL Con ventions Used in This Man ual BASIC CONTROL USAGE ComfortLink Controls The ComfortLink con- Scr olling Marquee Accessory Navigator Displa y Operation System Pilot Interface CCN T ab les and Display Table 2 Scrolling Marquee Menu Display Structure START-UP Unit Preparation Unit Setup Internal Wiring Accessory Installation Crankcase Heaters Table 3 Fan Performance 48ZG,ZN030 and 50ZG,ZN030 Units Without Discharge Plenum* Table 4 Fan Performance 48ZG,ZN035 and 50ZG,ZN035 Units Without Discharge Plenum* Table 5 Fan Performance 48ZG,ZN040 and 50ZG,ZN040 Units Without Discharge Plenum* Table 6 Fan Performance 48ZG,ZN050 and 50ZG,ZN050 Units Without Discharge Plenum* Table 7 Fan Performance 48ZG,ZN055 and 50ZG,ZN055 Units Without Discharge Plenum* Table 8 Fan Performance 48ZG,ZN060 and 50ZG,ZN060 Units Without Discharge Plenum* Table 9 Fan Performance 48ZG,ZN070 and 50ZG,ZN070 Units Without Discharge Plenum* Table 10 Fan Performance 50ZG,ZN030 Units With Discharge Plenum and 50Z2,Z3030 Units Table 11 Fan Performance 50ZG,ZN035 Units With Discharge Plenum and 50Z2,Z3035 Units Table 12 Fan Performance 50ZG,ZN040 Units With Discharge Plenum and 50Z2,Z3040 Units Table 13 Fan Performance 50ZG,ZN050 Units With Discharge Plenum and 50Z2,Z3050 Units Table 14 Fan Performance 50ZG,ZN055 Units With Discharge Plenum and 50Z2,Z3055 Units Table 15 Fan Performance 50ZG,ZN060 Units With Discharge Plenum and 50Z2,Z3060 Units Table 16 Fan Performance 50ZG,ZN070 Units With Discharge Plenum and 50Z2,Z3070 Units Table 17 Fan Performance 48ZG,ZN,ZT,ZW,Z6,Z8 and 50ZG,ZN,ZT,ZW,ZX,ZZ,Z2,Z3,Z6,Z7,Z8,Z9075 Table 18 Fan Performance 48ZG,ZN,ZT,ZW,Z6,Z8 and 50ZG,ZN,ZT,ZW,ZX,ZZ,Z2,Z3,Z6,Z7,Z8,Z9075 Table 19 Fan Performance 48ZG,ZN,ZT,ZW,Z6,Z8 and 50ZG,ZN,ZT,ZW,ZX,ZZ,Z2,Z3,Z6,Z7,Z8,Z9090 Table 20 Fan Performance 48ZG,ZN,ZT,ZW,Z6,Z8 and 50ZG,ZN,ZT,ZW,ZX,ZZ,Z2,Z3,Z6,Z7,Z8,Z9090 Table 21 Fan Performance 48ZG,ZN,ZT,ZW,Z6,Z8 and 50ZG,ZN,ZT,ZW,ZX,ZZ,Z2,Z3,Z6,Z7,Z8,Z9105 Table 22 Fan Performance 48ZG,ZN,ZT,ZW,Z6,Z8 and 50ZG,ZN,ZT,ZW,ZX,ZZ,Z2,Z3,Z6,Z7,Z8,Z9105 Table 23 Fan Performance Standard Capacity Power Exhaust Size 030-050 Units Size 055-155 Units Table 24 Fan Performance Return/Exhaust Fan (48Z6,Z8 and 50Z6,Z7,Z8,Z9075-105 Units) Table 25 Fan Performance High-Capacity Power Exhaust (48ZT,ZW075-105 and 50ZT,ZW,ZX,ZZ) Table 26 Supply Fan Motor Limitations (Sizes 030-070) Table 27 Supply Fan Motor Limitations (Sizes 075-105) Table 28 High-Capacity Power Exhaust Systems Motor Limitations (48ZT,ZW and 50ZT,ZW,ZX,ZZ Units) Table 29 Unit Design Airflow Limit Table 30A Component Pressure Drops (in. wg) (Size 030-050 Units) Table 30B Component Pressure Drops (in. wg) (Size 055-070 Units) Table 30C Component Pressure Drops (in. wg) (Size 075-105 Units) CONTROLS QUICK START Two-Stage Constant Volume Units with Mechanical Thermostat Two-Stage Constant Volume Units with Space Sensor Variable Air Volume Units Using Return Air Sensor or Space T e mperature Sensor Multi-Stage Constant Volume Units with Mechanical Thermos tat Multi-Stage Constant Volume Units with Space Sensor Economizer Options Indoor Air Quality Options Exhaust Options Set Cloc k on VFD (If Instal led) Programming Operating Schedules SERVICE TEST General Table 31 Service Test Service T est Mode Logic Independent Outputs Fan s Actuators Cooling THIRD PARTY CONTROL Thermostat Alarm Output Remote Switch VFD Contr ol Supply Air Rese t CONTROLS OPERATION Modes Page Unit Configuration Submenu System Mode Fire- Smoke Control Fig. 4 Mode Selection Exceptions Unit control free to choose HVAC Mode Page Cooling Contr ol Page Page Page Page Page Page Page Page Heating Control Page Page Page Page Page Page Static Pressure Control Page Page Fan Status Monitoring Dirty Filter Switch Economizer Page Page Page Building Pressure Contr ol Page Page Smoke Contr ol Modes Indoor Air Quality Contr ol Page Page Humidification Dehumidific ation and Rehe at T emperature Compensated Start Carrier Comfort Network Alert Limit Configuration Sensor T rim Configuration Discrete Switc h Logic Configuration Display Conf iguration Remote Contr ol Switch Input Hot Gas Bypass Space T emperature Offset TIME CLOCK CONFIGURATION Hour and Minute (HH.MM) The hour and minute Month of Year (MNTH) This variable is the current Day of Month (DOM) This variable is the current Day of Week (DAY) This variable is the current day TROUBLESHOOTING Complete Unit Stoppage Single Cir cuit Stoppage Service Analysis Restart Procedure T ransducer T r oubleshooting trol uses 2 suction pressure transducers to measure the suction Table 72 Gas Heating Service Analysis Table 73 Electric Heat Service Analysis Table 74 10K Thermistor vs Resistance (T55, T56, OAT, RAT, EDT, LAT Sensors) (F) Table 75 10K Thermistor vs Resistance (T55, T56, OAT, RAT, EDT, LAT Sensor) (C) Table 76 Suction Pressure Transducer Pressure (psig) vs Voltage (SSP-A, SSP-B) For cing Inputs and Outputs Run Status Menu Page Page Page Alarms and Aler ts Table 86 Alert and Alarm C odes Table 86 Alert and Alarm Codes (cont) Page Page Page Page Page MAJOR SYSTEM COMPONENTS General Factory-Installed Components Page Page Page Page Page Page Page Page Page Page Page LEGEND FOR FIG. 15-25 CEPL130346-01 HK 50AA029 CE BO 430346 Fig. 26 Main Base Board (MBB) J10 STATUS LEN Table 87 Main Control Board (MBB) Inputs and Outputs Fig. 27 Economizer Control Board (ECB) and Rooftop Control Board (RCB) Table 88 Rooftop Control Board (RCB) Inputs and Outputs Table 89 Economizer Control Board (ECB) Inputs and Outputs Table 90 Staged Gas Control Board (SCB) Inputs and Outputs Page Table 91 Control Expansion Module (CEM) Inputs and Outputs CEBD430351 Fig. 29 Controls Expansion Board (CEM) J7 CEPL130351-01 TEST 1 J1 J2 J4 J3 J5 LEN STATUS Table 92 Field Terminal Connections Page + Accessory Control Compon ents Page Fig. 33 CCN System Architecture SERVICE Service Access Page Page Adjustments Cleaning Lubrication Refrigerant Feed Components Thermostatic Expansion V alve (TXV) Refrigeration Circuits Oil Charge Gas System Adjustment (48Z Only) Moisture/Liquid Indicator Filter Drier Liquid Line Se rvice V alve Compressor Discharge Service V alve Relief Dev ices Contr ol Circ uit, 115 V Contr ol Circuit, 24 V Gas Heat (48Z Only) Compressor Remo val APPENDIX A LOCAL DISPLAY TABLES MODE RUN STATUS MODE SERVICE TEST MODE TEMPERATURES MODE PRESSURES MODE SETPOINTS MODE INPUTS MODE OUTPUTS MODE CONFIGURATION Page Page Page MODE TIMECLOCK MODE OPERATING MODES MODE ALARMS APPENDIX B CCN TABLES Page STATUS DISPLAY TABLES (cont) SET POINT TABLE CONFIG TABLES CONFIG TABLES (cont) SERVICE-CONFIG TABLES Page Page Page MAINTENANCE DISPLAY TABLES Page Page Page Page Page TIME SCHEDULE CONFIG TABLE Allowable Entries: Day not selected = 0 Day selected = 1 APPENDIX C UNIT STAGING TABLES STAGING SEQUENCE SIZE 030 UNITS 60 Hz STAGING SEQUENCE SIZE 030 UNITS 50 Hz STAGING SEQUENCE SIZE 035 UNITS DAY FLAGS MTWTFSSH STAGING SEQUENCE SIZE 040 UNITS 60 Hz STAGING SEQUENCE SIZE 040 UNITS 50 Hz STAGING SEQUENCE SIZE 050 UNITS STAGING SEQUENCE SIZE 055 UNITS 60 Hz STAGING SEQUENCE SIZE 055 UNITS 50 Hz STAGING SEQUENCE SIZE 060 UNITS 60 Hz STAGING SEQUENCE SIZE 060 UNITS 50 Hz STAGING SEQUENCE SIZE 070 AND 075 UNITS STAGING SEQUENCE SIZE 090 UNITS STAGING SEQUENCE SIZE 105 UNITS APPENDIX D VFD INFORMATION VFD Operation VFD Modes Page Thir d P arty Controls VFD Diagnostics Table C Fault Codes Page VFD Maintenance Page APPENDIX E MODE SELECTION PROCESS APPENDIX E MODE SELECTION PROCESS (cont) INDEX Page CONTROLS SET POINT AND CONFIGURATION LOG CL-2 CL-3 CL-4 CL-5 CL-6 UNIT START-UP CHECKLIST PRE-START-UP: START-UP: