Carrier 50BV020-064 Complete Pre-InstallationChecks, Modular Unit Shipping Table, a50-7257ef

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INSTALLATION

INSTALLATION

Omnizone™ 50BV units are intended for indoor installa- tion only. Determine building alterations required to run piping, wiring, and ductwork. Read all installation instructions before installing the unit.

Step 1 — Complete Pre-Installation Checks

EXAMINE THE UNIT — Examine the unit for shipping damage. File a claim with the transit company if damage is found. Check the shipment for completeness. Verify that the nameplate electrical requirements match the available power supply.

UNIT STORAGE — The 50BV units are designed and pack- aged for indoor storage and use only. If the equipment is not needed for immediate installation upon its arrival at the job site, it should be left in its shipping carton and stored in a clean, dry area. Units must only be stored or moved in the normal upright position, as indicated by the “UP” arrows on each carton, at all times. DO NOT STACK UNITS.

MODULAR UNITS — The 50BVT,U,V,W,X units are shipped in multiple sections for easy movement and installation. The separate modules will pass through a standard 36-in. steel- framed door or service elevator. Circuit integrity is maintained because none of the refrigerant piping requires disconnection. Water piping connections are made with the use of heavy-duty bronze-bodied unions so no field welding or brazing is required. See Table 2 for the number of sections per unit.

Table 2 — Modular Unit Shipping Table

 

NUMBER OF SECTIONS

SECTIONS

 

50BVT, U, V, W, X

 

 

034

044

054

064

Main Air Conditioning

1

2

2

2

Weight (lb) (each)

2100

1825

2200

2225

Reheat Coil Option

1

2

2

2

Weight (lb) (each)

40

40

40

40

Economizer/Filter

1

2

2

2

Filter Section Weight (lb)

310

310

310

310

Economizer Weight (lb)

200

200

200

200

Fan Section

1

2

2

2

Weight (lb) (each)

650

650

650

650

Total Unit

4

8

8

8

Weight (lb)

3300

5400

6150

6150

NOTE: Units ship with the main air conditioning, economizer/ filter, and, when selected, the reheat coil sections assembled together. These can be easily disassembled, as required, in the field. The fan section(s) always ships separately.

Step 2 — Rig and Place Unit — Use proper lifting and handling practices to avoid damage to the unit. Move modular units with a fork truck using the baserails provided, or use spreader bars and lifting straps as shown in Fig. 1.

For single piece units, use spreader bars and rigging straps if lifting with a crane to avoid damage to the unit. Otherwise, move with a fork truck using the shipping pallet.

Refer to Fig. 2-14 for unit dimensions. Refer to Tables 3A and 3B for physical data.

REMOVE PACKAGING — Remove all protective plastic, remove and discard unit top cover protector, filter cover, controller display protector, and water piping connection packaging.

UNIT LOCATION — Locate the unit in an indoor area that allows easy removal of the filters, access panels, and accessories. Make certain enough space is available for service personnel to perform maintenance or repairs. Provide sufficient room to make all water, duct, and electrical connections. If the unit is located in a small mechanical equipment room, make sure adequate space is available for air to return freely to the unit. These units are not approved for outdoor installations and must be installed inside the structure. Do not locate in areas that are subject to freezing.

UNIT PLACEMENT — Ensure that the floor is structurally strong enough to support the weight of the equipment with minimum deflection. A good, level floor is required for proper unit operation and to ensure proper fit-up and alignment of all bolt together and union coupled modules on modular units.

a50-7257ef

USE

SPREADER

BAR TO

PREVENT

DAMAGE

TO UNIT

4 X 4 ABOVE AND BELOW RETURN DUCT CONNECTIONS

Fig. 1 — Modular Unit Rigging

3

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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 a50-7164tfa39-1867t Installation Unit Discharge Locationa50-7275ef Fig. 27 - Modular Unit VAV Control Panel10 Kilo- ohm START-UPTable 11 - Thermistor Resistance vs Temperature Values for Supply-AirTemperature SensorTable 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