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Carrier 50TCA04-A07 Economizer Systems, PremierLink CCN Bus Connections, EconoMi$er IV Wiring

Models: 50TCA04-A07

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Fig. 51 - PremierLink CCN Bus Connections

50TC

(typically WHT) to the unit’s TB1-14 terminal. Connect the CCN (-) lead (typically BLK) to the unit’s TB1-16 terminal. See Fig. 51.

CCN Bus
	TB1		PL
+ (RED)	12		J2-1

TB1

GND (WHT) 14 J2-2

TB1

– (BLK) 16 J2-3

C08276

Fig. 51 - PremierLink CCN Bus Connections

ECONOMIZER SYSTEMS

The 50TC units may be equipped with a factory-installed or accessory (field-installed) economizer system. Two types are available: with a logic control system (EconoMi$er IV) and without a control system (EconoMi$er2, for use with external control systems such as PremierLink). See Fig. 52 and 53 for component locations on each type. See Fig. 54 and 55 for economizer section wiring diagrams.

Both economizers use direct-drive damper actuators.

ECONOMI$ER IV

CONTROLLER

	WIRING	OUTSIDE AIR
		TEMPERATURE SENSOR
	HARNESS
		LOW AMBIENT

	ACTUATOR	SENSOR

C06021

Fig. 52 - EconoMi$er IV Component Locations

		OUTDOOR
		AIR HOOD
	ECONOMI$ER2	HOOD
	PLUG	HOOD
	PLUG	SHIPPING
		BRACKET

GEAR DRIVEN

BAROMETRICDAMPER RELIEF

DAMPER

C06022

Fig. 53 - EconoMi$er2 Component Locations

FOR OCCUPANCY CONTROL

REPLACE JUMPER WITH

FIELD-SUPPLIED TIME CLOCK

8

7

	LEGEND	Potentiometer Defaults Settings:		NOTES:
	DCV— Demand Controlled Ventilation	Power Exhaust	Middle	1.	620 ohm, 1 watt 5% resistor should be removed only when using differential
	DCV— Demand Controlled Ventilation	Minimum Pos.	Fully Closed		enthalpy or dry bulb.
	IAQ — Indoor Air Quality	Minimum Pos.	Fully Closed		enthalpy or dry bulb.
	IAQ — Indoor Air Quality	DCV Max.	Middle	2.	If a separate field-supplied 24 v transformer is used for the IAQ sensor power
	LA — Low Ambient Lockout Device	DCV Max.	Middle	2.
	OAT — Outdoor-Air Temperature	DCV Set	Middle		supply, it cannot have the secondary of the transformer grounded.
	POT— Potentiometer	Enthalpy	C Setting	3.	For field-installed remote minimum position POT, remove black wire jumper
	RAT — Return-Air Temperature				between P and P1 and set control minimum position POT to the minimum
					position.

C06028

Fig. 54 - EconoMi$er IV Wiring

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Carrier 50TCA04-A07 appendix Economizer Systems, PremierLink CCN Bus Connections, EconoMi$er IV Component Locations

Contents

TABLE OF CONTENTS SAFETY CONSIDERATIONSELECTRICAL OPERATION HAZARD Service and Maintenance InstructionsUNIT ARRANGEMENT AND ACCESS Routine MaintenanceSeasonal Maintenance UNIT OPERATION AND SAFETY HAZARDFig. 3 - Filter Installation Fig. 4 - Screens Installed on Outdoor-Air HoodSUPPLY FAN BLOWER SECTION Supply Fan Belt-DriveAdjustable-Pitch Pulley on Motor Fig. 6 - Supply-Fan Pulley Adjustment BearingsFig. 7 - Tightening Locking Collar 50TCCondenser Coil Maintenance and Cleaning Recommendation Periodic Clean Water RinseRoutine Cleaning of Coil Surfaces COOLINGFig. 8 - Cleaning Condenser Coil Totaline Environmentally Sound Coil Cleaner Application EquipmentTotaline Environmentally Sound Coil Cleaner Application Instructions Two-Row CoilsRefrigerant System Pressure Access Ports Cleaning the Evaporator CoilPURONR R-410A REFRIGERANT Evaporator CoilTo Use Cooling Charging Charts Fig. 11 - CoreMax Access Port AssemblySEAT CORE 50TCCOOLING CHARGING CHARTS Fig. 12 - Cooling Charging Charts50TC C08203 C08204COOLING CHARGING CHARTS cont Fig. 12 - Cooling Charging Charts cont50TC C08228 C08229Troubleshooting Cooling System Fig. 13 - Condenser Fan Adjustment except with MotormasterCompressor Filter DrierTable 1 - Cooling Service Analysis 50TCFig. 15 - Powered Convenience Outlet Wiring CONVENIENCE OUTLETSSMOKE DETECTORS Fig. 14 - Convenience Outlet LocationFig. 16 - Controller Assembly SystemController SensorCompleting Installation of Return Air Smoke Sensor Smoke Detector LocationsFig. 18 - Typical Supply Air Smoke Detector Sensor Location Fig. 19 - Typical Return Air Detector LocationFIOP Smoke Detector Wiring and Response Fig. 23 - Typical Smoke Detector System WiringFig. 22 - Return Air Sensor Operating Position B D C F E ASensor and Controller Tests Sensor Alarm Test Controller Alarm TestSensor Alarm Test Procedure Controller Alarm Test ProcedureDETECTOR CLEANING Remote Test/Reset Station Dirty Sensor TestCleaning the Smoke Detector To Configure the Dirty Sensor Test OperationINDICATORS Alarm StateTable 3 - Detector Indicators Fig. 25 - Sensor Cleaning DiagramTROUBLESHOOTING Resetting Alarm and Trouble Condition TripsSensor’s Power LED is Off Controller’s Power LED is OffFig. 27 - Typical Access Panel Location 3-6 Ton Fig. 29 - Typical Module InstallationELECTRIC HEATERS Relief DeviceCompleting Heater Installation Fig. 30 - Typical Single Point InstallationFig. 31 - Typical Location of Heater Limit Switches 3-phase heater shown50TC PREMIERLINKT CONTROLFig. 33 - PremierLink Controller C08249 Fig. 35 - PremierLink Wiring Schematic50TC 50TC Fig. 36 - T-55 Space Temperature Sensor WiringFig. 37 - PremierLink T55 Sensor APPLICATION Table 6 - PremierLink Sensor Usage50TC Table 7 - Space Sensor Mode Table 8 - Thermostat Mode50TC TB1 TERMINALFig. 41 - Enthalpy Switch HH57AC077 Connections Fig. 38 - T-56 Internal ConnectionsFig. 39 - PremierLink T56 Sensor SwitchFig. 42 - Outside and Return Air Enthalpy Sensor Wiring 33ZCSENCO2 - Typical Wiring DiagramFig. 43 - Indoor/Outdoor Air Quality CO2 Sensor 50TCFig. 47 - PremierLink Filter Switch Connection Fig. 44 - Indoor CO2 Sensor 33ZCSENCO2 Connections Fig. 45 - Outdoor Air Quality Sensor CoverFig. 48 - PremierLink Wiring Fan Pressure Switch Connection Fig. 49 - PremierLink Wiring Remote OccupiedFig. 50 - PremierLink Power Exhaust Output Connection Table 9 - Recommended CablesFig. 54 - EconoMi$er IV Wiring ECONOMIZER SYSTEMSFig. 51 - PremierLink CCN Bus Connections Fig. 52 - EconoMi$er IV Component LocationsFig. 55 - EconoMi$er2 with 4 to 20 mA Control Wiring Table 11 - EconoMi$er IV Input/Output Logic50TC INPUTSEconoMi$er IV Standard Sensors Outdoor Air Temperature OAT Sensor Supply Air Temperature SAT SensorEconoMi$er Fig. 56 - EconoMi$er IV Functional ViewFig. 59 - Outside Air Temperature Changeover Setpoints Fig. 61 - Return Air Temperature or Enthalpy Sensor Mounting LocationDifferential Dry Bulb Control Fig. 58 - EconoMi$er IV Controller Potentiometer and LED LocationsFig. 62 - Enthalpy Changeover Setpoints Fig. 63 - EonoMi$er IV Control Differential Enthalpy ControlIndoor Air Quality IAQ Sensor Input 50TCFig. 64 - CO2 Sensor Maximum Range Settings Exhaust Setpoint AdjustmentMinimum Position Control Damper MovementCO2 Sensor Configuration Demand Control Ventilation DCVTable 12 - EconoMi$er IV Sensor Usage 50TCDCV Demand Controlled Ventilation and Power Exhaust EconoMi$er IV PreparationDifferential Enthalpy Single EnthalpyWIRING DIAGRAMS EconoMi$er IV Troubleshooting CompletionPRE-START-UP PERSONAL INJURY HAZARDInternal Wiring Refrigerant Service PortsSTART-UP, GENERAL START-UP, PREMIERLINK CONTROLSMemory Reset Perform System Check-OutInitial Operation and Test Operating Sequence, Base Unit ControlsOperating Sequence, PremierLink Control 50TC50TC IAQS = IAQD + OAQ OAQ = 400 ppm if not presentTable 13 - Available Cooling Stages 50TCNUMBER OF STAGES50TC S Indoor fan has been on for at least 30 seconds S Enthalpy is low50TC 50TC equal to OCSP and Enthalpy = Low then PURGEMP = 100%Table 15 - Loadshed Command - Gas and Electric Heat Units FASTENER TORQUE VALUESTable 14 - Linkage Modes 50TCFig. 65 - 50TC Typical Unit Wiring diagram - Power A06 Table 16 - Torque Values50TC 20 +C08002 Fig. 66 - 50TC Unit Wiring Diagram - Control A0650TC APPENDIX I. MODEL NUMBER SIGNIFICANCE Model Number NomenclatureSerial Number Format 50TCAPPENDIX II. PHYSICAL DATA Physical Data Cooling3 - 6 TONS 50TC50TC APPENDIX III. FAN PERFORMANCEGeneral Fan Performance Notes 1 Phase APPENDIX III. FAN PERFORMANCE cont3 Ton Horizontal Supply 3 Ton Vertical Supply3 Phase 3 PhaseAPPENDIX III. FAN PERFORMANCE cont 3 Ton Horizontal Supply4 Ton Horizontal Supply 4 Ton Vertical Supply50TC**05 1 PhasePhase 50TC**053 Phase APPENDIX III. FAN PERFORMANCE cont5 Ton Horizontal Supply 5 Ton Vertical Supply50TC**06 1 PhasePhase 3 PhaseAPPENDIX III. FAN PERFORMANCE cont 5 Ton Horizontal Supply6 Ton Horizontal Supply 6 Ton Vertical Supply50TC**07 Phase50TC Pulley AdjustmentAPPENDIX III. FAN PERFORMANCE cont APPENDIX IV. ELECTRICAL DATA 3 TONS4 TONS 50TC**04APPENDIX IV. ELECTRICAL DATA cont 5 TONS6 TONS 50TC**0650TC MCA/MOCP DETERMINATION NO C.O. OR UNPWRD C.OAPPENDIX IV. ELECTRICAL DATA cont MCA/MOCP DETERMINATION NO C.O. OR UNPWRD C.O. cont APPENDIX IV. ELECTRICAL DATA cont50TC 208/23050TC APPENDIX IV. ELECTRICAL DATA contMCA/MOCP DETERMINATION NO C.O. OR UNPWRD C.O. cont 50TC APPENDIX IV. ELECTRICAL DATA contMCA/MOCP DETERMINATION NO C.O. OR UNPWRD C.O. cont APPENDIX V. WIRING DIAGRAM LIST Wiring Diagrams50TC PremierLinkAPPENDIX VI. MOTORMASTER SENSOR LOCATIONS Fig. 67 - 50TC*A04 Outdoor CircuitingFig. 69 - 50TC*A07 Outdoor Circuiting Fig. 68 - 50TC*A05/06 Outdoor CircuitingAPPENDIX VI. cont MOTORMASTER SENSOR LOCATIONS Fig. 71 - 50TC*A09/12 Outdoor Circuiting50TC C0826350TC Copyright 2008 Carrier Corp. S 7310 W. Morris St. S Indianapolis, INPrinted in U.S.A Edition Date 05/08START-UP CHECKLIST START-UP CHECKLIST Remove and Store in Job FileTEMPERATURES PRESSURES Cooling Mode