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Bryant 551C installation instructions 551B,C, Unit

Models: 551B

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Table 10—Evaporator-Fan Motor Data — Standard Motor

UNIT	UNIT	MAXIMUM	MAXIMUM		MAXIMUM
551B	UNIT	MAXIMUM	MAXIMUM	UNIT VOLTAGE	MAXIMUM
551B	PHASE	CONTINUOUS BHP*	OPERATING WATTS*	UNIT VOLTAGE	AMP DRAW
551C	PHASE	CONTINUOUS BHP*	OPERATING WATTS*		AMP DRAW
551C

024	ALL	0.58	580	2.0	75.0
	Single	1.20	1000	208/230	4.9
036				208/230	4.9
036	Three	1.20	1000	460	2.2
	Three	1.20	1000	460	2.2
				575	2.2
	Single	1.20	1000	208/230	4.9
048				208/230	4.9
048	Three	1.20	1000	460	2.2
	Three	1.20	1000	460	2.2
				575	2.2
	Single	1.30	1455	208/230	7.0
060				208/230	6.7
060	Three	2.40	2120	460	3.0
	Three	2.40	2120	460	3.0
				575	3.0
				575	3.0
072				208/230	6.7
072	Three	2.40	2120	460	3.0
				575	3.0

LEGEND

Bhp — Brake Horsepower

*Extensive motor and electrical testing on these units ensures that the full horsepower and watts range of the motors can be utilized with confidence. Using the fan motors up to the ratings shown in this table will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected.

551B,C

Table 11—Evaporator-Fan Motor Data — High-Static Motors

	UNIT	UNIT	MAXIMUM	MAXIMUM		MAXIMUM
	551B	UNIT	MAXIMUM	MAXIMUM	UNIT VOLTAGE	MAXIMUM
	551B	PHASE	CONTINUOUS BHP*	OPERATING WATTS*	UNIT VOLTAGE	AMP DRAW
	551C	PHASE	CONTINUOUS BHP*	OPERATING WATTS*		AMP DRAW
	551C

	036				208/230	6.7
	036	Three	2.40	2120	460	3.0
					575	3.0
	048				208/230	6.7
	048	Three	2.40	2120	460	3.0
					575	3.0
	060				208/230	8.6
	060	Three	2.90	2615	460	3.9
					575	3.9
	072				208/230	8.6
	072	Three	2.90	2615	460	3.9
					575	3.9

LEGEND

Bhp — Brake Horsepower

*Extensive motor and electrical testing on these units ensures that the full horsepower and watts range of the motors can be utilized with confidence. Using the fan motors up to the ratings shown in this table will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected.

Table 12—Accessory/FIOP Electric Heaters Static Pressure Drop (in. wg) — 551B 036-072 and 551C 024-060

	COMPONENT						CFM
	COMPONENT	600	900	1200	1400	1600	1800	2000	2200	2400	2600
		600	900	1200	1400	1600	1800	2000	2200	2400	2600
	1 Heater Module	0.03	0.05	0.07	0.09	0.09	0.10	0.11	0.11	0.12	0.13
	2 Heater Modules	0.14	0.15	0.16	0.16	0.16	0.17	0.17	0.17	0.18	0.18

Table 13—Accessory/FIOP EconoMi$er IV and EconoMi$er2 Static Pressure* (in. wg) — 551B 036-072 and 551C 024-060

	COMPONENT						CFM
	COMPONENT	600	800	1000	1250	1500	1750	2000	2250	2500	2750	3000
		600	800	1000	1250	1500	1750	2000	2250	2500	2750	3000
	Vertical EconoMi$er IV	0.01	0.02	0.035	0.045	0.065	0.08	0.12	0.145	0.175	0.22	0.255
	Horizontal EconoMi$er IV	---	---	---	—	—	0.1	0.125	0.15	0.18	0.225	0.275

LEGEND

FIOP --- Factory ---Installed Option

*The static pressure must be added to external static pressure. The sum and the indoor entering-air cfm should be used in conjunction with the Fan Performance tables to determine indoor blower rpm and watts.

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Bryant 551C installation instructions 551B,C, Unit

Contents

SAFETY CONSIDERATIONS TABLE OF CONTENTSINSTALLATION Installation InstructionsStep 1 -ProvideUnit Support Step 3 -InstallExternal Trap for Condensate DrainStep 2 -FieldFabricate Ductwork Step 4 -Rigand Place UnitFig. 2 --- Roof Curb Details 551B,C551B 551CMAXIMUM ALLOWABLE DIFFERENCE in 551B,CFig. 3 --- Unit Leveling Tolerances Fig. 4 --- Condensate Drain ConnectionFig. 7 --- Roof Curb Alignment 551B,C551B,C 551B 036-072Base Unit DimensionsC06375 XOB LOR TNO CACCESS Fig. 9 --- 551C 024-060Base Unit Dimensions551B,C COMPRESSORField Power Supply Step 5 -MakeElectrical ConnectionsField Control Wiring Heat Anticipator SettingsTable 1-PhysicalData 551B 551B,CTable 2-PhysicalData 551C 551B,CFig. 12 --- Field Control Wiring Raceway Fig. 11 --- Power Wiring Connections551B,C Indoor Evaporator Fan ContactorTable 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 Fig. 13 --- Accessory Field-InstalledHumidistat Step 6 -Adjust Factory-InstalledOptionsDisconnect Switch AssemblyDamper Installed Humidistat Wiring 208/230-VUnit ShownLTLO - Low Temperature Lockout Factory WiringFig. 22 --- Typical Access Panel Locations Outdoor-AirDamper Position Setting551B,C Fig. FigOutdoor Air Temperature OAT Sensor Fig. 24 --- Indoor Coil Access Panel RelocationSupply Air Temperature SAT Sensor Table 5-SupplyAir Sensor Temperature551B,C Fig. 27 --- EconoMi$er IV WiringEconoMi$er IV Control Modes Outdoor Dry Bulb ChangeoverOutdoor Enthalpy Changeover 551B,CDifferential Enthalphy Control Fig. 28 --- Barometric Flow Capacity551B,C Exhaust Set Point Adjustmentand LED Locations Indoor Air Quality IAQ Sensor InputFig. 35 --- Return Air Temperature or Enthalpy Fig. 34 --- Outside Air Temperature551B,C Changeover Set PointsFig. 38 --- CO2 Sensor Maximum Range Setting CO2 Sensor Configuration551B,C Fig. 37 --- EconoMi$er IV ControlTable 7-CO2 Sensor Standard Settings Step 7 -Adjust Evaporator-FanSpeed551B,C Dehumidification of Fresh Air with DCV Control551B,C Fig. 41 --- Evaporator-FanPulley AdjustmentUNIT 551B,CGENERAL FAN PERFORMANCE NOTES 551B,CTable 14 - Evaporator-FanMotor Efficiency Belt Drive Belt Drive551B,C Belt DriveBelt Drive AIRFLOW 551B,CAIRFLOW 551B,CBelt Drive 551B,CAIRFLOW 551B,CAIRFLOW 551B,CBelt Drive 551B,CBelt Drive 551B,CStandard Motor Belt Drive 551B,CStandard Motor Belt Drive 551B,CHigh-StaticMotor Belt Drive 551B,CAIRFLOW 551B,CRefrigerant Service Ports Internal WiringPRE-START-UP START-UPCooling Safety ReliefHeating Ventilation Continuous FanStep 1 -Cleaning SERVICE551B,C Fig. 42 --- Perfect Humidityt NormalFig. 45 --- Cleaning Condenser Coil Step 2 -LubricationEvaporator Fan Belt Adjustment 551B,CStep 4 -EconoMi$erIV Adjustment Step 3 -Condenser-FanAdjustmentStep 5 -RefrigerantCharge Fig. 48 --- Condenser-FanAdjustmentFig. 53 --- Cooling Charging Chart, 551B 036 with Fig. 51 --- Cooling Charging Chart Standard 551BFig. 50 --- Cooling Charging Chart Fig. 52 --- Cooling Charging ChartFig. 54 --- Cooling Charging Chart, 551B 048 with Step 6 -ReplacementPartsFig. 55 --- Cooling Charging Chart, 551B 048 with Fig. 56 --- Cooling Charging Chart, 551B 072 with551C - 3 TON CHARGING CHART Fig. 57 --- Cooling Charging Chart Standard 551CFig. 58 --- Cooling Charging Chart Standard 551C 551C - 2 TON CHARGING CHART551C - 4 TON CHARGING CHART 551C - 5 TON CHARGING CHARTFig. 59 --- Cooling Charging Chart Standard 551C Fig. 60 --- Cooling Charging Chart Standard 551CUnit Troubleshooting TROUBLESHOOTINGEconomi$er IV Troubleshooting 551B,CEconoMi$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 START-UPCHECKLIST Remove and Store in Job File GENERALI. PRELIMINARY INFORMATION III. START-UP