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

Models: 551B

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Table 21—Fan Performance 551B 060, 551C 060 — Vertical Discharge Units; High-Static 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
1500	790	0.40	353	897	0.53	471	991	0.68	600		1075	0.83	739	1152	1.00	888
1600	828	0.46	412	931	0.60	536	1022	0.75	670		1104	0.92	813	1180	1.09	966
1700	866	0.54	478	966	0.68	608	1054	0.84	747		1134	1.01	895	1208	1.19	1053
1800	905	0.62	551	1001	0.77	687	1087	0.94	832		1165	1.11	985	1238	1.29	1148
1900	944	0.71	633	1037	0.87	774	1120	1.04	925		1197	1.22	1084	1268	1.41	1251
2000	983	0.81	723	1073	0.98	870	1154	1.16	1026		1229	1.34	1190	1299	1.53	1362
2100	1023	0.92	821	1110	1.10	975	1189	1.28	1137		1262	1.47	1306	1330	1.67	1483
2200	1063	1.05	929	1147	1.23	1089	1224	1.41	1256		1295	1.61	1431	1362	1.82	1614
2300	1104	1.18	1046	1185	1.37	1212	1260	1.56	1386		1329	1.76	1567	1395	1.98	1754
2400	1145	1.32	1174	1223	1.52	1346	1296	1.72	1526		1364	1.93	1712	1428	2.15	1905
2500	1185	1.48	1311	1262	1.68	1490	1333	1.89	1676		1399	2.10	1868	1462	2.33	2067

AIRFLOW						EXTERNAL STATIC PRESSURE (in. wg)
AIRFLOW		1.2			1.4			1.6				1.8			2.0
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	1224	1.18	1045	1291	1.36	1212	1354	1.56	1387		1414	1.77	1570	1472	1.98	1761
1600	1250	1.27	1128	1316	1.46	1299	1379	1.66	1478		1438	1.87	1664	1495	2.09	1858
1700	1278	1.37	1219	1343	1.57	1394	1405	1.77	1576		1463	1.99	1766	1520	2.21	1964
1800	1306	1.48	1318	1370	1.69	1497	1431	1.90	1683		1489	2.11	1877	1545	2.34	2078
1900	1335	1.61	1426	1398	1.81	1609	1458	2.03	1799		1515	2.25	1997	1570	2.48	2202
2000	1364	1.74	1542	1427	1.95	1730	1486	2.17	1925		1542	2.39	2126	1596	2.63	2335
2100	1395	1.88	1668	1456	2.09	1860	1514	2.32	2060		1570	2.55	2265	1623	2.79	2478
2200	1426	2.03	1804	1486	2.25	2001	1543	2.48	2204		1598	2.72	2415	—	—	—
2300	1457	2.19	1949	1516	2.42	2151	1573	2.66	2360		1627	2.90	2574	—	—	—
2400	1489	2.37	2106	1547	2.60	2312	1603	2.84	2526		—	—	—	—	—	—
2500	1522	2.56	2272	1579	2.80	2484	—	—	—		—	—	—	—	—	—
NOTES:									LEGEND
1. Bold cells indicate field-supplied drive is required.								Bhp — Brake Horsepower
2. Maximum continuous bhp is 2.90.								Watts — Input Watts to Motor
3. See general fan performance notes.								*Motor drive range: 1300 to 1685 rpm. All other rpms require field-supplied
								drive.

551B,C

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Image 39

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

Contents

Installation Instructions TABLE OF CONTENTSSAFETY CONSIDERATIONS INSTALLATIONStep 4 -Rigand Place Unit Step 3 -InstallExternal Trap for Condensate DrainStep 1 -ProvideUnit Support Step 2 -FieldFabricate Ductwork551C 551B,CFig. 2 --- Roof Curb Details 551BFig. 4 --- Condensate Drain Connection 551B,CMAXIMUM ALLOWABLE DIFFERENCE in Fig. 3 --- Unit Leveling TolerancesFig. 7 --- Roof Curb Alignment 551B,CXOB LOR TNO C 551B 036-072Base Unit Dimensions551B,C C06375COMPRESSOR Fig. 9 --- 551C 024-060Base Unit DimensionsACCESS 551B,CHeat Anticipator Settings Step 5 -MakeElectrical ConnectionsField Power Supply Field Control WiringTable 1-PhysicalData 551B 551B,CTable 2-PhysicalData 551C 551B,CIndoor Evaporator Fan Contactor Fig. 11 --- Power Wiring ConnectionsFig. 12 --- Field Control Wiring Raceway 551B,CTable 3-Electrical Data-551C 551B,CTable 3 - Electrical Data-551Ccont 551B,C551B,C Table 3 - Electrical Data-551CcontVOLTAGE 551B,C Table 3 - Electrical Data-551CcontVOLTAGE 551B,C Table 3 - Electrical Data-551CcontNONE Table 4-Electrical Data-551B 551B,CTable 4 - Electrical Data-551Bcont 551B,C551B,C Table 4 - Electrical Data-551BcontUNIT 551B,C Table 4 - Electrical Data-551BcontUNIT 551B,C Table 4 - Electrical Data-551BcontVOLTAGE Assembly Step 6 -Adjust Factory-InstalledOptionsFig. 13 --- Accessory Field-InstalledHumidistat Disconnect SwitchFactory Wiring Humidistat Wiring 208/230-VUnit ShownDamper Installed LTLO - Low Temperature LockoutFig. Fig Outdoor-AirDamper Position SettingFig. 22 --- Typical Access Panel Locations 551B,CTable 5-SupplyAir Sensor Temperature Fig. 24 --- Indoor Coil Access Panel RelocationOutdoor Air Temperature OAT Sensor Supply Air Temperature SAT SensorOutdoor Dry Bulb Changeover Fig. 27 --- EconoMi$er IV Wiring551B,C EconoMi$er IV Control ModesFig. 28 --- Barometric Flow Capacity 551B,COutdoor Enthalpy Changeover Differential Enthalphy ControlIndoor Air Quality IAQ Sensor Input Exhaust Set Point Adjustment551B,C and LED LocationsChangeover Set Points Fig. 34 --- Outside Air TemperatureFig. 35 --- Return Air Temperature or Enthalpy 551B,CFig. 37 --- EconoMi$er IV Control CO2 Sensor ConfigurationFig. 38 --- CO2 Sensor Maximum Range Setting 551B,CDehumidification of Fresh Air with DCV Control Step 7 -Adjust Evaporator-FanSpeedTable 7-CO2 Sensor Standard Settings 551B,C551B,C Fig. 41 --- Evaporator-FanPulley AdjustmentUNIT 551B,CGENERAL FAN PERFORMANCE NOTES 551B,CTable 14 - Evaporator-FanMotor Efficiency Belt Drive Belt Drive551B,C Belt DriveBelt Drive AIRFLOW 551B,CAIRFLOW 551B,CBelt Drive 551B,CAIRFLOW 551B,CAIRFLOW 551B,CBelt Drive 551B,CBelt Drive 551B,CStandard Motor Belt Drive 551B,CStandard Motor Belt Drive 551B,CHigh-StaticMotor Belt Drive 551B,CAIRFLOW 551B,CSTART-UP Internal WiringRefrigerant Service Ports PRE-START-UPVentilation Continuous Fan Safety ReliefCooling HeatingFig. 42 --- Perfect Humidityt Normal SERVICEStep 1 -Cleaning 551B,C551B,C Step 2 -LubricationFig. 45 --- Cleaning Condenser Coil Evaporator Fan Belt AdjustmentFig. 48 --- Condenser-FanAdjustment Step 3 -Condenser-FanAdjustmentStep 4 -EconoMi$erIV Adjustment Step 5 -RefrigerantChargeFig. 52 --- Cooling Charging Chart Fig. 51 --- Cooling Charging Chart Standard 551BFig. 53 --- Cooling Charging Chart, 551B 036 with Fig. 50 --- Cooling Charging ChartFig. 56 --- Cooling Charging Chart, 551B 072 with Step 6 -ReplacementPartsFig. 54 --- Cooling Charging Chart, 551B 048 with Fig. 55 --- Cooling Charging Chart, 551B 048 with551C - 2 TON CHARGING CHART Fig. 57 --- Cooling Charging Chart Standard 551C551C - 3 TON CHARGING CHART Fig. 58 --- Cooling Charging Chart Standard 551CFig. 60 --- Cooling Charging Chart Standard 551C 551C - 5 TON CHARGING CHART551C - 4 TON CHARGING CHART Fig. 59 --- Cooling Charging Chart Standard 551C551B,C TROUBLESHOOTINGUnit Troubleshooting Economi$er IV TroubleshootingEconoMi$er IV Troubleshooting Completion Table 35-CoolingService Analysis551B,C Table 38-EconoMi$erIV Input/Output Logic 551B,C551B,C Fig. 61 --- EconoMi$er IV Functional ViewC06053 III. START-UP GENERALSTART-UPCHECKLIST Remove and Store in Job File I. PRELIMINARY INFORMATION