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Bryant 551C installation instructions 551B,C, Standard Motor Belt Drive

Models: 551B

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551B,C

Table 29—Fan Performance 551B 060, 551C 060 Single-Phase — Horizontal Discharge Units;

Standard Motor (Belt Drive)*

AIRFLOW						EXTERNAL STATIC PRESSURE (in. wg)
CFM		0.2			0.4			0.6				0.8			1.0
	Rpm	Bhp	Watts	Rpm	Bhp	Watts	Rpm	Bhp	Watts		Rpm	Bhp	Watts	Rpm	Bhp	Watts
1500	724	0.33	295	837	0.45	402	937	0.59	524		1028	0.74	660	1111	0.91	808
1600	757	0.39	343	866	0.51	455	962	0.65	580		1050	0.81	719	1132	0.98	870
1700	790	0.45	398	894	0.58	514	988	0.72	643		1074	0.88	784	1154	1.06	938
1800	823	0.52	458	924	0.65	579	1015	0.80	712		1099	0.96	857	1177	1.14	1013
1900	857	0.59	525	955	0.73	650	1043	0.89	787		1125	1.05	936	1201	1.23	1096
2000	892	0.67	599	986	0.82	729	1072	0.98	870		1151	1.15	1022	—	—	—
2100	927	0.77	680	1017	0.92	815	1101	1.08	960		1178	1.26	1116	—	—	—
2200	962	0.87	769	1050	1.02	909	1131	1.19	1059		—	—	—	—	—	—
2300	997	0.97	865	1082	1.14	1010	—	—	—		—	—	—	—	—	—
2400	1033	1.09	970	1115	1.26	1120	—	—	—		—	—	—	—	—	—
2500	1069	1.22	1084	—	—	—	—	—	—	—		—	—	—	—	—

AIRFLOW						EXTERNAL STATIC PRESSURE (in. wg)
CFM		1.2			1.4			1.6				1.8			2.0
	Rpm	Bhp	Watts	Rpm	Bhp	Watts	Rpm	Bhp	Watts		Rpm	Bhp	Watts	Rpm	Bhp	Watts
1500	1188	1.09	970	1261	1.29	1143	—	—	—		—	—	—	—	—	—
1600	1208	1.16	1033	—	—	—	—	—	—		—	—	—	—	—	—
1700	1229	1.24	1103	—	—	—	—	—	—		—	—	—	—	—	—
1800	—	—	—	—	—	—	—	—	—		—	—	—	—	—	—
1900	—	—	—	—	—	—	—	—	—		—	—	—	—	—	—
2000	—	—	—	—	—	—	—	—	—		—	—	—	—	—	—
2100	—	—	—	—	—	—	—	—	—		—	—	—	—	—	—
2200	—	—	—	—	—	—	—	—	—		—	—	—	—	—	—
2300	—	—	—	—	—	—	—	—	—		—	—	—	—	—	—
2400	—	—	—	—	—	—	—	—	—		—	—	—	—	—	—
2500	—	—	—	—	—	—	—	—	—		—	—	—	—	—	—
NOTES:									LEGEND
1. Bold cells indicate field-supplied drive is required.								Bhp — Brake Horsepower
2. Maximum continuous bhp is 1.30.								Watts — Input Watts to Motor
3. See general fan performance notes.								*Motor drive range: 1035 to 1460 rpm. All other rpms require field-supplied
								drive.

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Bryant 551C installation instructions 551B,C, Standard Motor Belt Drive

Contents

TABLE OF CONTENTS SAFETY CONSIDERATIONSINSTALLATION Installation InstructionsStep 3 -InstallExternal Trap for Condensate Drain Step 1 -ProvideUnit SupportStep 2 -FieldFabricate Ductwork Step 4 -Rigand Place Unit551B,C Fig. 2 --- Roof Curb Details551B 551C551B,C MAXIMUM ALLOWABLE DIFFERENCE inFig. 3 --- Unit Leveling Tolerances Fig. 4 --- Condensate Drain Connection551B,C Fig. 7 --- Roof Curb Alignment551B 036-072Base Unit Dimensions 551B,CC06375 XOB LOR TNO CFig. 9 --- 551C 024-060Base Unit Dimensions ACCESS551B,C COMPRESSORStep 5 -MakeElectrical Connections Field Power SupplyField Control Wiring Heat Anticipator Settings551B,C Table 1-PhysicalData 551B551B,C Table 2-PhysicalData 551CFig. 11 --- Power Wiring Connections Fig. 12 --- Field Control Wiring Raceway551B,C Indoor Evaporator Fan Contactor551B,C Table 3-Electrical Data-551C551B,C Table 3 - Electrical Data-551CcontVOLTAGE 551B,CTable 3 - Electrical Data-551Ccont VOLTAGE 551B,CTable 3 - Electrical Data-551Ccont NONE 551B,CTable 3 - Electrical Data-551Ccont 551B,C Table 4-Electrical Data-551B551B,C Table 4 - Electrical Data-551BcontUNIT 551B,CTable 4 - Electrical Data-551Bcont UNIT 551B,CTable 4 - Electrical Data-551Bcont VOLTAGE 551B,CTable 4 - Electrical Data-551Bcont Step 6 -Adjust Factory-InstalledOptions Fig. 13 --- Accessory Field-InstalledHumidistatDisconnect Switch AssemblyHumidistat Wiring 208/230-VUnit Shown Damper InstalledLTLO - Low Temperature Lockout Factory WiringOutdoor-AirDamper Position Setting Fig. 22 --- Typical Access Panel Locations551B,C Fig. FigFig. 24 --- Indoor Coil Access Panel Relocation Outdoor Air Temperature OAT SensorSupply Air Temperature SAT Sensor Table 5-SupplyAir Sensor TemperatureFig. 27 --- EconoMi$er IV Wiring 551B,CEconoMi$er IV Control Modes Outdoor Dry Bulb Changeover551B,C Outdoor Enthalpy ChangeoverDifferential Enthalphy Control Fig. 28 --- Barometric Flow CapacityExhaust Set Point Adjustment 551B,Cand LED Locations Indoor Air Quality IAQ Sensor InputFig. 34 --- Outside Air Temperature Fig. 35 --- Return Air Temperature or Enthalpy551B,C Changeover Set PointsCO2 Sensor Configuration Fig. 38 --- CO2 Sensor Maximum Range Setting551B,C Fig. 37 --- EconoMi$er IV ControlStep 7 -Adjust Evaporator-FanSpeed Table 7-CO2 Sensor Standard Settings551B,C Dehumidification of Fresh Air with DCV ControlFig. 41 --- Evaporator-FanPulley Adjustment 551B,C551B,C UNITTable 14 - Evaporator-FanMotor Efficiency GENERAL FAN PERFORMANCE NOTES551B,C Belt Drive Belt DriveBelt Drive 551B,CBelt Drive 551B,C AIRFLOW551B,C AIRFLOW551B,C Belt Drive551B,C AIRFLOW551B,C AIRFLOW551B,C Belt Drive551B,C Belt Drive551B,C Standard Motor Belt Drive551B,C Standard Motor Belt Drive551B,C High-StaticMotor Belt Drive551B,C AIRFLOWInternal Wiring Refrigerant Service PortsPRE-START-UP START-UPSafety Relief CoolingHeating Ventilation Continuous FanSERVICE Step 1 -Cleaning551B,C Fig. 42 --- Perfect Humidityt NormalStep 2 -Lubrication Fig. 45 --- Cleaning Condenser CoilEvaporator Fan Belt Adjustment 551B,CStep 3 -Condenser-FanAdjustment Step 4 -EconoMi$erIV AdjustmentStep 5 -RefrigerantCharge Fig. 48 --- Condenser-FanAdjustmentFig. 51 --- Cooling Charging Chart Standard 551B Fig. 53 --- Cooling Charging Chart, 551B 036 withFig. 50 --- Cooling Charging Chart Fig. 52 --- Cooling Charging ChartStep 6 -ReplacementParts Fig. 54 --- Cooling Charging Chart, 551B 048 withFig. 55 --- Cooling Charging Chart, 551B 048 with Fig. 56 --- Cooling Charging Chart, 551B 072 withFig. 57 --- Cooling Charging Chart Standard 551C 551C - 3 TON CHARGING CHARTFig. 58 --- Cooling Charging Chart Standard 551C 551C - 2 TON CHARGING CHART551C - 5 TON CHARGING CHART 551C - 4 TON CHARGING CHARTFig. 59 --- Cooling Charging Chart Standard 551C Fig. 60 --- Cooling Charging Chart Standard 551CTROUBLESHOOTING Unit TroubleshootingEconomi$er IV Troubleshooting 551B,C551B,C EconoMi$er IV Troubleshooting CompletionTable 35-CoolingService Analysis 551B,C Table 38-EconoMi$erIV Input/Output LogicC06053 551B,CFig. 61 --- EconoMi$er IV Functional View GENERAL START-UPCHECKLIST Remove and Store in Job FileI. PRELIMINARY INFORMATION III. START-UP