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Bryant 551C installation instructions 551B,C, Airflow

Models: 551B

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551B,C

Table 22—Fan Performance 551B 072 — Vertical Discharge Units; Standard Motor (Belt Drive)*

AIRFLOW						EXTERNAL STATIC PRESSURE (in. wg)
AIRFLOW		0.2			0.4			0.6				0.8			1.0
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
1800	907	0.63	558	1006	0.80	708	1092	0.97	860		1169	1.14	1015	1239	1.32	1174
1900	945	0.72	638	1042	0.90	796	1126	1.08	956		1201	1.26	1119	1271	1.45	1285
2000	984	0.82	727	1078	1.00	892	1160	1.19	1060		1235	1.39	1230	1303	1.58	1403
2100	1024	0.93	823	1115	1.12	997	1195	1.32	1173		1268	1.52	1350	1335	1.72	1531
2200	1063	1.05	929	1152	1.25	1111	1230	1.46	1294		1302	1.67	1480	1368	1.88	1668
2300	1103	1.18	1044	1189	1.39	1234	1266	1.60	1425		1337	1.82	1618	1402	2.04	1814
2400	1143	1.32	1168	1227	1.54	1367	1302	1.76	1566		1371	1.99	1767	1435	2.22	1970
2500	1183	1.47	1303	1265	1.70	1510	1339	1.93	1717		1406	2.17	1926	—	—	—
2600	1224	1.63	1448	1303	1.87	1663	1375	2.12	1878		1442	2.36	2095	—	—	—
2700	1264	1.81	1604	1342	2.06	1828	1412	2.31	2051		—	—	—	—	—	—
2800	1305	1.99	1772	1381	2.26	2003	—	—	—		—	—	—	—	—	—
2900	1346	2.20	1951	—	—	—	—	—	—		—	—	—	—	—	—
3000	—	—	—	—	—	—	—	—	—	—		—	—	—	—	—

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
1800	1304	1.51	1337	1365	1.69	1503	1422	1.88	1674		1477	2.08	1848	1528	2.28	2025
1900	1335	1.64	1454	1395	1.83	1627	1452	2.03	1804		1506	2.23	1984	—	—	—
2000	1366	1.78	1580	1426	1.98	1760	1482	2.19	1943		1535	2.40	2130	—	—	—
2100	1398	1.93	1715	1457	2.14	1901	1512	2.35	2091		—	—	—	—	—	—
2200	1430	2.09	1858	1488	2.31	2052	—	—	—		—	—	—	—	—	—
2300	1462	2.27	2012	—	—	—	—	—	—		—	—	—	—	—	—
2400	—	—	—	—	—	—	—	—	—		—	—	—	—	—	—
2500	—	—	—	—	—	—	—	—	—		—	—	—	—	—	—
2600	—	—	—	—	—	—	—	—	—		—	—	—	—	—	—
2700	—	—	—	—	—	—	—	—	—		—	—	—	—	—	—
2800	—	—	—	—	—	—	—	—	—		—	—	—	—	—	—
2900	—	—	—	—	—	—	—	—	—		—	—	—	—	—	—
3000	—	—	—	—	—	—	—	—	—		—	—	—	—	—	—
NOTES:									LEGEND
1. Bold cells indicate field-supplied drive is required.								Bhp — Brake Horsepower
2. Maximum continuous bhp is 2.40.								Watts — Input Watts to Motor
3. See general fan performance notes.								*Motor drive range: 1120 to 1585 rpm. All other rpms require field-supplied
								drive.

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Bryant 551C installation instructions 551B,C, Airflow

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-551CcontTable 3 - Electrical Data-551Ccont 551B,CVOLTAGE Table 3 - Electrical Data-551Ccont 551B,CVOLTAGE Table 3 - Electrical Data-551Ccont 551B,CNONE 551B,C Table 4-Electrical Data-551B551B,C Table 4 - Electrical Data-551BcontTable 4 - Electrical Data-551Bcont 551B,CUNIT Table 4 - Electrical Data-551Bcont 551B,CUNIT Table 4 - Electrical Data-551Bcont 551B,CVOLTAGE 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$er IV ControlStep 7 -Adjust Evaporator-FanSpeed Table 7-CO2 Sensor Standard Settings551B,C Dehumidification of Fresh Air with DCV ControlFig. 41 --- Evaporator-FanPulley Adjustment 551B,C551B,C UNIT551B,C GENERAL FAN PERFORMANCE NOTESTable 14 - Evaporator-FanMotor Efficiency Belt Drive Belt DriveBelt Drive 551B,CBelt Drive 551B,C AIRFLOW551B,C AIRFLOW551B,C Belt Drive551B,C AIRFLOW551B,C AIRFLOW551B,C Belt Drive551B,C Belt Drive551B,C Standard Motor Belt Drive551B,C Standard Motor Belt Drive551B,C High-StaticMotor Belt Drive551B,C AIRFLOWInternal Wiring Refrigerant Service PortsPRE-START-UP START-UPSafety Relief CoolingHeating Ventilation Continuous FanSERVICE Step 1 -Cleaning551B,C Fig. 42 --- Perfect Humidityt NormalStep 2 -Lubrication Fig. 45 --- Cleaning Condenser CoilEvaporator Fan Belt Adjustment 551B,CStep 3 -Condenser-FanAdjustment Step 4 -EconoMi$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$er IV Troubleshooting 551B,CTable 35-CoolingService Analysis EconoMi$er IV Troubleshooting Completion551B,C 551B,C Table 38-EconoMi$erIV Input/Output LogicFig. 61 --- EconoMi$er IV Functional View 551B,CC06053 GENERAL START-UPCHECKLIST Remove and Store in Job FileI. PRELIMINARY INFORMATION III. START-UP