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Carrier NP034-074 specifications

Models: NP034-074

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Fig. 72 Ð Typical Control Wiring Schematic; 48/50NP,50NB Units (054-074 Shown)

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Carrier NP034-074 specifications

Contents

Gas Manifold Pressure 48 Series CONTENTSInstalling Flue/Inlet Hoods 48 Series Units Evaporator-FanBelts, Pulleys, and Sheaves . .INSTALLATION CONTENTS contSAFETY CONSIDERATIONS GENERALFig. 1 Ð Rigging Label Table 1A Ð Physical Data; 034, 044 Units Table 1B Ð Physical Data; 054-074Units To attach ductwork to roof curb, insert duct approxi- mately 10 to 11 in. up into roof curb. Connect ductwork to 14-gageroof curb material with sheet metal screws driven from inside of the duct Fig. 3A Ð Roof Curb; 034, 044 Units Fig. 3B Ð Roof Curb; 054-074Units UNIT Install Outdoor Hoods Outdoor-AirInlet AdjustmentsUNIT 5400 8700 UNIT Fig. 6 Ð Condensate Drain Location Fig. 5 Ð Drain Location SelectionFig. 8 Ð Condensate Drain Piping Details Fig. 9 Ð Outdoor-AirHoodFig. 12 Ð Enthalpy Sensor Location Fig. 10 Ð Outdoor-AirDamper AdjustmentsFig. 13 Ð Psychrometric Chart for Inside of Hood ShownPosition Setting Adjustments Field Wire RoutingFig. 14 Ð Wiring Connections for Solid-State Field Electrical ConnectionsFig. 18 Ð Field Power Wiring Connections Fig. 17 Ð Disconnect Location, 054-074Units50 Series Horizontal Discharge Shown Table 3 Ð Electrical Data, 034 Units 208/230-3-60 V-Ph-HzTable 3 Ð Electrical Data, 034 Units cont 460-3-60 V-Ph-HzTable 3 Ð Electrical Data, 034 Units cont 575-3-60 V-Ph-HzTable 4 Ð Electrical Data, 044 Units Table 4 Ð Electrical Data, 044 Units cont Table 4 Ð Electrical Data, 044 Units cont BASE UNIT WITHTable 5 Ð Electrical Data, 054 Units Table 5 Ð Electrical Data, 054 Units cont Table 5 Ð Electrical Data, 054 Units cont BASE UNIT WITHTable 6 Ð Electrical Data, 064 Units Table 6 Ð Electrical Data, 064 Units cont Table 6 Ð Electrical Data, 064 Units cont BASE UNIT WITHTable 7 Ð Electrical Data, 074 Units Table 7 Ð Electrical Data, 074 Units cont Table 7 Ð Electrical Data, 074 Units cont BASE UNIT WITHFig. 19 Ð Field Control Thermostat Wiring NOTES AND LEGEND FOR FIG.034 AND 044 UNITS OPTIONAL MODULATING POWER EXHAUSTOPTIONAL MODULATING POWER EXHAUST BASE UNIT BASE UNIT BASE UNITFig. 22 Ð Flue/Inlet Hood, 034,044 Units Installing Flue/Inlet Hoods 48 Series Units OnlyFig. 21 Ð Gas Piping Details Fig. 23 Ð Inlet HoodFig. 27 Ð Flue/Inlet Hood, 054-074Units Fig. 24 Ð Flue HoodFig. 25 Ð Flue De¯ector Baffles, 034,044 Units Fig. 28 Ð Flue/Inlet Hood Close-Up50 Series Vertical Discharge 054-074Units PRE-START-UPFig. 30 Ð Shipping Brackets; 034,044 Units and Table 8 Ð Oil ChargeGas Manifold Pressure 48 Series Units Only Evaporator-FanBelts, Pulleys, and Sheaves ÐTable 10 Ð Air Quantity Limits cfm Fig. 32 Ð Condenser-FanAdjustment Initial CheckSTART-UP General SERVICE Fig. 35 Ð Modulating Power Exhaust Damper Fig. 34 Ð Typical Filter Drier and Liquid ServiceValve Access Motor Access, 034 and 044 UnitsFig. 37 Ð Gas Section Detail, 48 Series 034 and Fig. 40 Ð Flue Box Assembly, 48 Series Units OnlyShown with Burner Assembly 044 UnitsLubrication Fig. 42 Ð Typical Electric Heat Control BoxFig. 43 Ð Inlet Guide Vane Motor Adjustments Fig. 44 Ð Motor Plate AdjustmentFig. 48 Ð Charging Chart, 034 Units; System Fig. 46 Ð Charging Chart, 034 Units; SystemFig. 47 Ð Charging Chart, 034 Units; System Fig. 45 Ð Pulley AlignmentFig. 51 Ð Charging Chart, 044 Units; System Fig. 49 Ð Charging Chart, 034 Units; SystemFig. 50 Ð Charging Chart, 044 Units; System Fig. 52 Ð Charging Chart, 044 Units; SystemFig. 57 Ð Charging Chart, 064 Units; System Fig. 55 Ð Charging Chart, 054 Units; SystemFig. 56 Ð Charging Chart, 064 Units; System Fig. 58 Ð Charging Chart, 074 Units; SystemFig. 60 Ð Auxiliary Switch Stroke Adjustment Main Burner Removal 48 Series Units OnlyProtective Devices High- and Low-PressureSwitch Locations TROUBLESHOOTINGFig. 62 Ð Typical Compressor Overtemperature Table 11 Ð Pressure Switch Settings psigTable 14 Ð Economizer Control Board Checkout Test Table 15 Ð Economizer Control Board Checkout TestTable 16 Ð Economizer Control Board Checkout Test Fig. 64 Ð Control Board Component Arrangement 1.Turn unit power off. Disconnect plugs P1 and P3 Symptom: Compressor no. 2 will not operate3.Reconnect the wires removed in Step 6.Turn unit power off. Reconnect plugs P1 and P4Fig. 65 Ð Compressor Lockout Connections SC Ð Safety CircuitLEGEND CLO Ð Compressor Lockout PÐ Plug LEGEND FOR FIG. Fig. 66 Ð Gas Heat Sections; 48DJ,NP034,044 Units Fig. 67 Ð Gas Heat Sections; 48DJ,NP054-074Units Fig. 68 Ð Gas Heat Section; 48DK034,044 Units Fig. 69 Ð Gas Heat Section; 48DK054-074Units Page Page Page Page Page Page Page Page PACKAGED SERVICE TRAINING Page TEMPERATURES START-UPSTART-UPCHECKLIST PRE-START-UP