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Bryant 558F EconoMi$er IV Input/Output Logic, EconoMi$er IV Functional View

Models: 558F

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Table 31 — EconoMi$er IV Input/Output Logic

Table 31 — EconoMi$er IV Input/Output Logic

		INPUTS						OUTPUTS
	Demand Control	Enthalpy*				Compressor		N Terminal†
	Demand Control			Y1	Y2	Stage	Stage	Occupied	Unoccupied
	Ventilation (DCV)	Outdoor	Return	Y1	Y2	Stage	Stage	Occupied	Unoccupied
	Ventilation (DCV)	Outdoor	Return			1	2	Damper
						1	2	Damper
	Below set	High	Low	On	On	On	On	Minimum position	Closed
	(DCV LED Off)	(Free Cooling LED Off)
	(DCV LED Off)	(Free Cooling LED Off)		On	Off	On	Off
				On	Off	On	Off
				Off	Off	Off	Off
		Low	High	On	On	On	Off	Modulating** (between min.	Modulating** (between
		(Free Cooling LED On)						position and full-open)	closed and full-open)
		(Free Cooling LED On)		On	Off	Off	Off	position and full-open)	closed and full-open)
				On	Off	Off	Off
				Off	Off	Off	Off	Minimum position	Closed
	Above set	High	Low	On	On	On	On	Modulating†† (between min.	Modulating†† (between
	(DCV LED On)	(Free Cooling LED Off)						position and DCV maximum)	closed and DCV
	(DCV LED On)	(Free Cooling LED Off)		On	Off	On	Off	position and DCV maximum)	closed and DCV
				On	Off	On	Off		maximum)
				Off	Off	Off	Off		maximum)
				Off	Off	Off	Off
		Low	High	On	On	On	Off	Modulating***	Modulating†††
		(Free Cooling LED On)
		(Free Cooling LED On)		On	Off	Off	Off
				On	Off	Off	Off
				Off	Off	Off	Off

*For single enthalpy control, the module compares outdoor enthalpy to the ABCD set point.

†Power at N terminal determines Occupied/Unoccupied setting: 24 vac (Occupied), no power (Unoccupied).

**Modulation is based on the supply air sensor signal. ††Modulation is based on the DCV signal.

***Modulation is based on the greater of DCV and supply air sensor signals, between minimum position and either maximum position (DCV) or fully open (supply air signal).

†††Modulation is based on the greater of DCV and supply air sensor signals, between closed and either maximum position (DCV) or fully open (supply air signal).

Fig. 50 — EconoMi$er IV Functional View

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Image 65

Bryant 558F installation instructions EconoMi$er IV Input/Output Logic, EconoMi$er IV Functional View

Contents

III. Step 3 - Install External Trap for CONTENTSAdjust Factory-Installed Adjust Evaporator-FanSpeedA. Positioning Fig. 1 - Horizontal Conversion PanelsIV. STEP 4 - RIG AND PLACE UNIT Fig. 2 - Roof Curb Details Fig. 5 - Condensate Drain Piping Details Fig. 3 - Unit Leveling ToleranceFig. 4 - Condensate Drain Connection Side View Fig. 6 - Rigging DetailsPage Page Page ASHRAE 90.1-1999Compliant Units B. Field Control Wiring A. Field Power SupplyFig. 8 - Power Wiring Connections V.STEP 5 - MAKE ELECTRICAL CONNECTIONSPage Page Page Page Page Page Page Page Page Page Page Page Fig. 12 - Field Control Wiring Raceway Fig. 9 - Conduit InstallationFig. 10 - Typical Component Location B. Convenience OutletFig. 16 - Outdoor-AirDamper Position Setting Outdoor-AirDamper InstalledFig. 13 - Damper Panel with Manual Fig. 14 - Outdoor-AirHood DetailsFig. 18 - Typical Access Panel Locations Fig. 20 - Indoor Coil Access Panel RelocationFig. 22 - Filter Installation Fig. 17 - EconoMi$er IV Component LocationsFig. 25 - Outdoor-AirDamper Leakage Fig. 23 - EconoMi$er IV WiringFig. 26 - Return-AirPressure Drop D. EconoMi$er IV Standard SensorsFig. 27 - Supply Air Sensor Location Temperature/Resistance ValuesTable 3 - Supply Air Sensor E. EconoMi$er IV Control ModesFig. 30 - Return Air Temperature or Enthalpy Fig. 29 - Outside Air TemperatureChangeover Set Points Sensor Mounting LocationFig. 31 - Enthalpy Changeover Set Points Fig. 33 - CO2 Sensor Maximum Range SettingFig. 32 - EconoMi$er IV Control APPROXIMATE DRY BULB TEMPERATURE- F CPage Table 5 - CO2 Sensor Standard Settings Fig. 36 - Evaporator-FanPulley Adjustment VII. STEP 7 - ADJUST EVAPORATOR-FANSPEEDFig. 34 - Typical Belt-DriveMotor Mounting for Sizes 090,091,102,103Table 7 - Evaporator-FanMotor Efficiency Table 6 - Fan Rpm at Motor Pulley SettingsTable 8 - Accessory/FIOP Static Pressure* in. wg GENERAL FAN PERFORMANCE NOTES Table 9 - Evaporator Fan Motor DataPage Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page VI. REFRIGERANT SERVICE PORTS V. INTERNAL WIRINGPRE-START-UP START-UP I. UNIT PREPARATIONVIII. COOLING X. SAFETY RELIEFA. To Shut Off Unit XI. VENTILATION Continuous FanI. CLEANING SERVICEFig. 37 - Cleaning Condenser Coil A.Evaporator CoilVI. ECONOMIZER ADJUSTMENT IV. CONDENSER-FANADJUSTMENT FigA. Checking and Adjusting Refrigerant Charge Fig. 40 - Condenser Fan AdjustmentVIII. HIGH-PRESSURESWITCH B. To Use Cooling Charging ChartsIX. LOSS-OF-CHARGESWITCH XI. REPLACEMENT PARTSCIRCUIT NO Fig. 43 - Cooling Charging Chart 558F120Fig. 44 - Cooling Charging Chart 558F150 Fig. 45 - Cooling Charging Chart 558F091 Fig. 48 - Cooling Charging Chart 558F151 Fig. 47 - Cooling Charging Chart 558F121TROUBLESHOOTING I. UNIT TROUBLESHOOTING II. ECONOMI$ER IV TROUBLESHOOTINGA. EconoMi$er IV Preparation G.EconoMi$er IV Troubleshooting CompletionB. Differential Enthalpy C.Single EnthalpyFig. 49 - Typical Unit Wiring Schematic Table 30 - Cooling Service Analysis Fig. 50 - EconoMi$er IV Functional View Table 31 - EconoMi$er IV Input/Output LogicINDEX CALL FOR FREE CATALOG SERVICE TRAININGCATALOG NO Copyright 2005 Bryant Heating & Cooling SystemsPage TEMPERATURES START-UPCHECKLIST Remove and Store in Job FileI. PRELIMINARY INFORMATION III. START-UP