Manuals / Bryant / Household Appliance / Heating System

Bryant 558D installation instructions Ð Roof Curb

Models: 558D

1 40

Page 4

ROOF CURB	``A''	UNIT SIZE
ACCESSORY	``A''	UNIT SIZE
ACCESSORY
CRRFCURB001A00	14
CRRFCURB001A00	[356]	558D036-072
CRRFCURB002A00	24	558D036-072
	24
	[610]

NOTES:

1.Roof curb accessory is shipped unassembled.

2.Insulated panels.

3. Dimensions in [ ] are in millimeters.

4.Roof curb: galvanized steel.

5.Attach ductwork to curb. (Flanges of duct rest on curb.)

6.Service clearance 4 ft on each side.

7. Direction of air¯ow.

UNIT SIZE	``B''	``C''	``D'' Alt	Power		Control		Connector Package Accessory
			Drain Hole

				3¤4	NPT	1¤2	NPT	CRBTMPWR001A00
	2111¤16	16	13¤4					(THRU-THE-BOTTOM)
558D036-072
	[551]	[406]	[44.5]	11¤4	NPT	1¤2	NPT	CRBTMPWR002A00

								(THRU-THE-BOTTOM)

Ð4Ð

Fig. 4 Ð Roof Curb

Page 4

Image 4

Bryant 558D installation instructions Ð Roof Curb

Contents

IMPORTANT Ð READ BEFORE INSTALLING CONTENTSSAFETY CONSIDERATIONS INSTALLATIONFig. 2 Ð Base Unit Dimensions Fig. 3 Ð Service and Operational Clearances I. LOCATE THE UNIT A. ClearanceB. Roof Curb Mount C. Slab Mount Horizontal Units OnlyFig. 4 Ð Roof Curb Table 1 Ð Specications MAXIMUM ALLOWABLE DIFFERENCE in Fig. 5 Ð Unit Leveling TolerancesIV. FIELD CONNECTIONS A. External Trap Condensate DrainFig. 7 Ð Internal Trap Condensate Drain Fig. 8 Ð External Trap Condensate DrainFig. 10 Ð Field Wiring Connections Fig. 11 Ð Low-VoltageConnectionsFig. 13 Ð Low-VoltageLocation Fig. 12 Ð Typical Component LocationFig. 14 Ð Transformer Label Table 2 Ð Electrical Data Ð10ÐTable 2 Ð Electrical Data Cont Ð11ÐD. Accessory Installation E. Optional Outdoor-AirDamper InstallationDamper Installed Fig. 18 Ð Position SettingFig. 19 Ð Typical Access Panel Locations F. Optional Durablade EconomizerFig. 20 Ð Outdoor-AirHood Details G. Optional PARABLADE Economizer90 Degree Rotation Fig. 23 Ð Durablade Economizer Installed in UnitFig. 22 Ð Horizontal Discharge Block-OffPlate Damper Characteristics Enthalpy Control InstallationFig. 27 Ð Durablade Economizer Barometric Relief Fig. 25 Ð Outdoor-AirThermostatFig. 28 Ð PARABLADE Economizer Installed in Unit Fig. 30 Ð Panels Reinstalled On UnitFig. 31 Ð Outdoor-AirHood Installed On Unit Fig. 32 Ð Filter Installed on Outdoor-AirHoodI. HEATING SECTION START-UPAND ADJUSTMENTS C. Limit SwitchesD. Air¯ow and Temperature Rise E. Safety Check of Limit ControlII.COOLING SECTION START-UPAND ADJUSTMENTS B.Checking and Adjusting Refrigerant ChargeA. Checking Cooling Control Operation C. Unit ControlsTable 3 Ð Fan Rpm at Motor Pulley Settings III. INDOOR AIRFLOW AND AIRFLOW ADJUSTMENTSA. Direct Drive Motors Table 4 Ð Motor Data Ð20ÐÐ21Ð Ð22Ð Ð23Ð Ð24Ð Ð25Ð Ð26Ð Fig. 35 Ð Evaporator-FanPulley Adjustment B. Belt Drive MotorsC.Ventilation Sequence Fig. 34 Ð Belt-DriveMotor MountingCARE AND MAINTENANCE SERVICEI. CLEANING I. AIR FILTERFig. 36 Ð Condenser Coil Cleaning III. CONDENSER-FANADJUSTMENT FigFig. 37 Ð Propping Up Condenser Coil Top Cover Fig. 38 Ð Separating Coil SectionsC. To Use Cooling Charging Charts V.REPLACEMENT PARTSFig. 39 Ð Condenser-FanAdjustment IV. REFRIGERANT CHARGEFig. 40 Ð Cooling Charging Chart 558D036 Fig. 42 Ð Cooling Charging Chart 558D060Fig. 41 Ð Cooling Charging Chart 558D048 Fig. 43 Ð Cooling Charging Chart 558D072Table 19 Ð Cooling Troubleshooting TROUBLESHOOTINGÐ32Ð Table 20 Ð Durablade Economizer Troubleshooting Ð33ÐTable 21 Ð PARABLADE Economizer Troubleshooting Ð34ÐFig. 44 Ð Typical Wiring Schematic Ð35ÐPage Page SERVICE TRAINING CALL FOR FREE CATALOGPage TEMPERATURES I. PRELIMINARY INFORMATIONIII. START-UP ELECTRICAL