Manuals / Carrier / Household Appliance / Heat Pump

Carrier 50BV020-064 specifications a50-7307ef, NOTES 1.Dimensions in inches mm

Models: 50BV020-064

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a50-7307ef

NOTES:

1.Dimensions in inches [mm].

2.Refer to base unit certified drawing for additional unit dimensions, service clearances, and alternate airflow configurations.

a50-7307ef

Fig. 13 — 50BVC,J,Q034 with Optional Waterside Economizer Dimensions

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Carrier 50BV020-064 specifications a50-7307ef, NOTES 1.Dimensions in inches mm

Contents

Installation, Start-Upand Service Instructions CONTENTSSAFETY CONSIDERATIONS GENERAL MAJOR SYSTEM COMPONENTS Constant Volume CV Unitsa50-7257ef INSTALLATIONStep 1 - Complete Pre-InstallationChecks Table 2 - Modular Unit Shipping TableFig. 2 - 50BVC,J,Q020-034Dimensions Fig. 3 - 50BVE,K020-034Dimensions a50-8201 Fig. 4 - 50BVT,V,W034 High-BoyDimensionsFig. 5 - 50BVT,V,W034 Low-BoyDimensions Fig. 6 - 50BVT,V,W044-064 High-BoyDimensions Fig. 7 - 50BVT,V,W044-064 Low-BoyDimensions Fig. 8 - 50BVU,X034 High-BoyDimensions Fig. 9 - 50BVU,X034 Low-BoyDimensions Fig. 10 - 50BVU,X044-064 High-BoyDimensions Fig. 11 - 50BVU,X044-064 Low-BoyDimensions a50-7306ef NOTES 1.Dimensions in inches mma50-7307ef NOTES 1.Dimensions in inches mmShipping Weights lb a50-8235Size 034 Units Size 044-064Units Table 3A - Physical Data - 50BVC,E,J,K,Q Table 3B - Physical Data - 50BVT,U,V,W,X Multiple Fan Units Fig. 15 - Typical Fan Discharge Connections fora50-7267ef a50-7138efFig. 16 - Duct Static Pressure Probe P/N 39EK20462Fig. 18 - DHS Pressure Limit Location Fig. 19 - DHS Limit Switch P/NStep 4 - Make Piping Connections a50-825350BVT,V,W Units Table 5A - Condenser Pressure Drop50BVC,J,Q Units Table 5B - Condenser Pressure Drop50BVT,U,V,W,X Units Table 6A - Hot Water Pressure Drop50BVC,E,J,K,Q Units Table 6B - Hot Water Pressure Dropa50-7270ef Step 5 - Complete Electrical ConnectionsTable 7B - Economizer Pressure Drop Curve ft wg, 50BVT,U,V,W,X UnitsTable 9A - Electrical Data - 50BVC,E,J,K,Q Table 9B - Electrical Data - 50BVT,U,V,W,X Fig. 24 - Typical Wiring 18 to 30 Ton Units a50-7272efTwo-StageCooling Units Fig. 26 - Field Terminal Block a50-7273efTable 10 - Recommended Cables a50-7164tfa50-7275ef Fig. 29 - Supply/Return Air TemperatureFig. 30 - Supply-AirTemperature Sensor Installation Unit Discharge LocationValues for Return-AirTemperature Sensor 5 kiloohm Table 11 - Thermistor Resistance vs TemperatureValues for Supply-AirTemperature Sensor Table 12 - Thermistor Resistance vs TemperatureTable 13 - Fan Performance - 50BVC,E,Q020 CV Unit Start-UpTable 14 - Fan Performance - 50BVC,E,Q024 Table 15 - Fan Performance - 50BVC,E,Q028 Table 16 - Fan Performance - 50BVC,E,Q034 Table 17 - Fan Performance - 50BVT,U,V034 Table 17 - Fan Performance - 50BVT,U,V034 cont Table 18 - Fan Performance - 50BVT,U,V044 Table 19 - Fan Performance - 50BVT,U,V054 Table 19 - Fan Performance - 50BVT,U,V054 cont Table 20 - Fan Performance - 50BVT,U,V064 Table 20 - Fan Performance - 50BVT,U,V064 cont VAV Unit Start-Up a50-7425ef OMNIZONE VPAC02-06-04 Fig. 32 - LIDFig. 33 - 50BV VFD Display The LID display will show Year Table 21 - Controller Set Points Table 22 - Controller Hardware PointsTable 23 - Software Points Table 24 - Configuration Parameters Unoccupied space or return air temperature demand MAINTENANCE SERVICEFig. 35 - Forced Circulation Method a50-186tfFig. 34 - Gravity Flow Method a50-187tfa50-7135tf Evaporator Fan Performance AdjustmentTROUBLESHOOTING Charging the SystemPOSSIBLE CAUSE PROBLEMPOSSIBLE CAUSE Table 28 - Unit TroubleshootingPROBLEM CORRECTION PROCEDURETable 29 - CV Units LED Diagnostic Codes Table 30 - Forcing an Input or OutputTable 31 - Clearing a Forced Input or Output Page Page Page Page UNIT WIRING FIELD WIRINGPage TRANS-1 FIELD WIRINGWIRE LEGEND a50-7282efPCB2 J1 FIELD WIRINGFIELD WIRING UNIT WIRINGPCB1 PCB1 FIELD WIRINGLEGEND AND NOTES FOR FIG 10-08 Copyright 2008 Carrier CorporationCatalog No Form 50BV-3SICONTROLS START-UPCHECKLISTI. PRELIMINARY INFORMATION II. PRE-START-UPIII.START-UP