Manuals / Carrier / Household Appliance / Heating System

Carrier 48MPD III.PRELIMINARY CHECKLIST ITEMS cont, Iv. Start-Up, Changes To Default Values

Models: MPE62L-10R 50MP62L-10R 48MPD

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III.PRELIMINARY CHECKLIST ITEMS (cont)

III.PRELIMINARY CHECKLIST ITEMS (cont)

CHANGES TO DEFAULT VALUES

RECORD ALL CHANGES MADE TO FACTORY DEFAULT VALUES

IV. START-UP

CHECK EVAPORATOR FAN SPEED AND RECORD.

CHECK CONDENSER FAN SPEED AND RECORD.

AFTER AT LEAST 10 MINUTES RUNNING TIME, RECORD THE FOLLOWING MEASUREMENTS:

COMP A1

COMP A2

COMP B1

COMP B2

OIL PRESSURE

SUCTION PRESSURE

SUCTION LINE TEMP

DISCHARGE PRESSURE

DISCHARGE LINE TEMP

ENTERING CONDENSER AIR TEMP

LEAVING CONDENSER AIR TEMP

EVAP ENTERING AIR DB TEMP

EVAP ENTERING AIR WB TEMP

EVAP LEAVING AIR DB TEMP

EVAP LEAVING AIR WB TEMP

COMPRESSOR AMPS (L1)

COMPRESSOR AMPS (L2)

COMPRESSOR AMPS (L3)

ELECTRICAL

SUPPLY FAN AMPS

EXHAUST FAN AMPS

ELECTRIC HEAT AMPS L1

L2

L3

TEMPERATURES

OUTDOOR-AIR TEMPERATURE

F

DB (Dry-Bulb)

RETURN-AIR TEMPERATURE

F

DB

F WB (Wet-Bulb)

COOLING SUPPLY AIR

F

PRESSURES

GAS INLET PRESSURE

IN. WG

GAS MANIFOLD PRESSURE

STAGE NO. 1

IN. WG

STAGE NO. 2

IN. WG

REFRIGERANT SUCTION

CIRCUIT NO. 1

PSIG

CIRCUIT NO. 2

PSIG

REFRIGERANT DISCHARGE

CIRCUIT NO. 1

PSIG

CIRCUIT NO. 2

PSIG

VERIFY REFRIGERANT CHARGE USING CHARGING CHARTS ON PAGES 48 AND 49

GENERAL

ECONOMIZER MINIMUM VENT AND CHANGEOVER SETTINGS TO JOB REQUIREMENTS

CHECK THE COMPRESSOR OIL LEVEL SIGHT GLASSES; ARE THE SIGHT GLASSES SHOWING

OIL LEVEL PER INSTRUCTIONS ON PAGE 29. (Y/N)

PERFORM CONTROL CONFIGURATION PROCEDURE ON PAGES CL-3 AND CL-4.

CL-2

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Carrier 48MPD III.PRELIMINARY CHECKLIST ITEMS cont, Iv. Start-Up, Changes To Default Values, Electrical, Temperatures

Contents

Installation, Start-Upand Service Instructions CONTENTSGENERAL CONTENTS contSAFETY CONSIDERATIONS Compressor Suction and DischargeCopy continues on page INSTALLATIONInstall Outdoor Hoods Table 1 Ð Physical Data Table1 Ð Physical Data cont Table 2 Ð Optional Power Exhaust Specications Table 3 Ð Compressor Oil ChargeFig. 1 Ð Roof Curb Dimensions, 48/50MP62L and 70M Fig. 2 Ð Roof Curb Dimensions, 48/50MP82N-10R Fig. 3 Ð Base Unit Dimensions, 48MP62L, 70M Fig. 4 Ð Base Unit Dimensions, 48MP82N-10R Fig. 5 Ð Base Unit Dimensions, 50MP62L and 70M Fig. 6 Ð Base Unit Dimensions, 50MP82N-10R Fig. 7 Ð Rigging Label Make Electrical Connections Fig. 11 Ð Outdoor Air Hoods InstalledField Electrical Connections Fig. 9 Ð Condensate Drain Piping DetailsFig. 12 Ð Field Power Wiring Connections Table 5 Ð Electrical Data Table 6 Ð Recommended Sensor and Device Non-ShieldedCableFig. 13 Ð Space Temperature Sensor Wiring Fig. 14 Ð Space Temperature Sensor Averaging Fig. 16 Ð Differential Enthalpy Sensor Fig. 18 Ð Accessory Humidity ControlFig. 15 Ð Heat Interlock Relay Fig. 19 Ð Fire/Smoke ControlFig. 21 Ð Outdoor Air¯ow Control Fig. 26 Ð Remote Supply Air TemperatureReset/Space Temperature Offset Fig. 22 Ð Timed Discrete OutputFig. 28 Ð CCN Building Supervisor TRANSDUCER ACCESSORYFig. 27 Ð Transducer/Thermistor Fig. 29 Ð Optional VFD Ð Wiring Connections Table 7 Ð CCN Connection Approved Shielded CablesThe following color code is recommended Fig. 33 Ð Air Pressure Tubing Locations Fig. 31 Ð Auxiliary Control Box Location50MP70M Unit Shown Fig. 32 Ð Auxiliary Control BoxFig. 34 Ð Gas Piping Details Installing Flue/Inlet Hoods 48MP Units OnlyFig. 36 Ð Inlet Hood Assembly Fig. 37 Ð Flue Hood Fig. 35 Ð Flue and Inlet Hood LocationsFig. 38 Ð Flue De¯ector Baffle Assembled Fig. 39 Ð Fan isolator AdjustmentCheck Compressor Mounting Fig. 40 Ð Outer View, Compressor MountingPRE-START-UP Rail Assembly Ð 48/50MP70M-10RUnitsRail Assembly Ð 48/50MP70M-10RUnits System CheckEvaporator-FanBelts, Pulleys, and Sheaves Ð Fig. 44 Ð Operating Oil Levels Sight GlassAIRFLOW AIRFLOW Table 13 Ð Fan Performance Air Foil Ð 48/50MP62L Table 14 Ð Fan Performance Air Foil Ð 48/50MP70M Table 15 Ð Fan Performance Air Foil Ð 48/50MP82NTable 16 Ð Fan Performance Air Foil Ð 48/50MP90P Table 17 Ð Fan Performance Air Foil Ð 48/50MP10RControls Conguration and Quick Test Table 20 Ð Maximum Allowable Power ExhaustTable 22 Ð Filter Switch Dirty Set Point Table 18 Ð Component Pressure Drop in. wgEnthalpy Control Fig. 46 Ð Psychrometric Chart forFig. 47 Ð Wiring Connections for Solid-State Enthalpy Sensor HH57AC077Table 24 Ð Set Point Ranges and Defaults START-UP Initial Check Table 25 Ð Basic Conguration DataGeneral Table 26 Ð IGC Control Board LED Alarms Control Loop Checkout Table 29 Ð Index of Lead/Lag Circuits and CONTROL SYSTEMComponents CompressorsKEYPAD AND DISPLAY MODULE HSIO FUNCTIONS Fig. 49 Ð VFD Digital Operator SERVICETable 30 Ð Variable Frequency Drive VFD Display Fig. 51 Ð Access Locations 48MP70M Unit Shown Fig. 50 Ð Door LatchFig. 52 Ð Burner Section Detail LubricationRefrigerant Circuit Fig. 53 Ð Removing Heat Exchanger CeramicFig. 57 Ð Chrging Chart Ð Unit 48/50MP82N Fig. 55 Ð Charging Chart Ð Unit 48/50MP62LFig. 56 Ð Charging Chart Ð Unit 48/50MP70M Fig. 58 Ð Charging Chart Unit 48/50MP90P Fig. 59 Ð Charging Chart Ð Unit 48/50MP10RAdjustments Fig. 61 Ð Motor Plate Adjustment Fig. 60 Ð 06E Compressors, TypicalFig. 62 Ð Pulley Alignment Gas Valve AdjustmentProtective Devices Fig. 63 Ð Gas ValveVariable Frequency Drive VFD High-VoltageRelay Modules DSIO1 and DSIO2 InstallationProcessor Modules PSIO Fig. 64 Ð Condenser Fan Adjustment Compressor Replacement Ð Perform the followingTROUBLESHOOTING TROUBLESHOOTING AND DIAGNOSTICS TROUBLESHOOTING AND DIAGNOSTICS cont Fig. 65 Ð IGC Control Heating Ð 48MP Units Only Page PACKAGED SERVICE TRAINING CALL FOR FREE CATALOGSTART-UPCHECKLIST I. PRE-START-UPTEMPERATURES III.PRELIMINARY CHECKLIST ITEMS contCHANGES TO DEFAULT VALUES IV. START-UPCL-3 CONTROL CONFIGURATIONVALUES IN INDICATE FACTORY DEFAULTS KEYBOARDDISPLAY CONSTANT VOLUME CONTROL CONFIGURATIONKEYBOARD DESCRIPTION