PCB1, Field Wiring, Unit Wiring | Carrier 50BV020-064 specs

PCB1

63

PCB1						1				TRANS-1 (24VAC)																						WIRE LEGEND
						1			BLU	CBR				YEL															10			WIRE LEGEND
	TO SYSTEM					10			BLU					YEL															10
	TO SYSTEM				J1	2																										UNIT WIRING
		DISPLAY			J1	2																										UNIT WIRING
		DISPLAY				11																										FIELD WIRING
						3																							10			FIELD WIRING
			J6			16									RED
			J6			16						DIS-1	A	B	DIS-2
						144							A	B																			S9
						15							+	-												S9							S9
SW1						15								ALARM																			CNOD = 0
						14												YEL									F201 = 20					CC	CNOD = 0
																		YEL					CNOD = 0			F103 = 0						CC	FNOD = 0
1 2 3 4 5 6 7 8					1										DIS-3			DIS-4					CNOD = 0			F103 = 0							FNOD = 0
1 2 3 4 5 6 7 8					1	143									DIS-3	A	B	DIS-4					FNOD = 0			F114 = 1	FNSL = 2					II	F103 = 0
					0	13										+	-															VFD	F114 = 1
						13											WARN															VFD	F114 = 1
						137											WARN						-			141	VFD-CC					DISPLAY
						12																	-		CC				CC				VFD2
1 2 3 4 5 6 7 8					INT	11																	+ P24										VFD2
SW2						136																				138	VFD-VIA					S1
						136																			VIA				VIA


					EXT	10																	IN		OUT	139	VFD-P24		P24			CC
					EXT	10																	SPEED 5						P24	VFD1
						135							A	B				10					SPEED 5			3 140	VFD-S1					F
						9							+	-															S1

					J4																			SF
SW3					J4	8									SF									SF		142			CC	FM
SW3						8																							CC	FM
1 2 3 4 5 6 7 8					20MA	7																							R	RC
SW4					OTHER	6																			BYPAS OPTIONAL					RY
						5																			BYPAS OPTIONAL

1 2 3 4 5 6 7 8 10VDC
1 2 3 4 5 6 7 8 10VDC						4
					OTHER	4						CLO2-2						CLO2-3		A	B
						129						CLO2-2						CLO2-3		A	B
						129								VIO	2		ORG		130	+	-
						3									2		3			+	-
						3								CLO2							CMP2
						2								CLO2			BLU				CMP2
SW5															LOGIC		1				CLO1-2						CLO1-3
																		CLO2-1			CLO1-2						CLO1-3		A	B
						127												CLO2-1					VIO		2	3	ORG	128	A	B	10
1	2	3	4		DO	1																			2	3			+	-		COMMON TB
1	2	3	4		DO	1																CLO1					BLU			CMP1		COMMON TB
								DSP+														CLO1			LOGIC 1		BLU			CMP1
					AO	116																			LOGIC 1
					AO	116
SW6						18																					CLO1-1
SW6						115								115
1	2	3	4		DO	17						V														CBR		TRANS-3 (24VAC)
1	2	3	4		DO	17													121				YEL			CBR		TRANS-3 (24VAC)				BLU
						114																	YEL									BLU
					AO	16						C
					AO	113				EWT		120	6	4
						113				EWT		120	6	4
						15					CSMUX	4			CMP4													T1	T2
						15		DHS2				118	6	4	CMP4													T1	T2
						111		DHS2				118	6	4
						112	DHS1					119	6	4	CMP3								ORG		ORG BLK		BLK M1					BLU
						14		To OFF				3			CMP3					5	3	122	ORG		ORG BLK		BLK M1		M2			BLU
						13		To OFF							CMP2
						13				DHS		2			CMP2					CMP1								OLR1		CC1
						110	3	5		DHS		117	6	4	CMP1					CMP1			LPS1			HPS1		OLR1		CC1
						110	3	5				117	6	4									LPS1			HPS1
						12						1																					(C)
						11			ROCC																								(C)
						109			ROCC			S
					J3	108	3	5	FSD									24VAC(R)										T1	T2				COMMON
						105			FSD									24VAC(R)										T1	T2				COMMON
						10			CDWF
						107			CDWF
						9	3	5
						106	3	5
						8
						7																123	ORG		ORG BLK		BLK M1
						6														5	3	123	ORG		ORG BLK		BLK M1		M2			BLU
						6
						104								DSP						CMP2
						5								DSP						CMP2				LPS2		HPS2		OLR2		CC2
						5																						OLR2		CC2
			J7			4									+
			J7			4		DSP-							+
						103		DSP-						-
		3	2	1		3								-
		3	2	1		3
						102
						2	To TB2
						101	To TB2
						1														5	3	126
																				5	3			9		10
																								9		10

BPS-S

BYPAS

TO PCB2 (J7)

OPTIONAL

Fig. 46 — 50BVJ,K Field-Installed Low Voltage Schematic (PCB 1 Module)

Image 63

Carrier 50BV020-064 specifications PCB1, Field Wiring, Unit Wiring

Contents

Installation, Start-Upand Service Instructions CONTENTSSAFETY CONSIDERATIONS GENERAL MAJOR SYSTEM COMPONENTS Constant Volume CV Units a50-7257ef INSTALLATIONStep 1 - Complete Pre-InstallationChecks Table 2 - Modular Unit Shipping Table Fig. 2 - 50BVC,J,Q020-034Dimensions Fig. 3 - 50BVE,K020-034Dimensions a50-8201 Fig. 4 - 50BVT,V,W034 High-BoyDimensions Fig. 5 - 50BVT,V,W034 Low-BoyDimensions Fig. 6 - 50BVT,V,W044-064 High-BoyDimensions Fig. 7 - 50BVT,V,W044-064 Low-BoyDimensions Fig. 8 - 50BVU,X034 High-BoyDimensions Fig. 9 - 50BVU,X034 Low-BoyDimensions Fig. 10 - 50BVU,X044-064 High-BoyDimensions Fig. 11 - 50BVU,X044-064 Low-BoyDimensions a50-7306ef NOTES 1.Dimensions in inches mm a50-7307ef NOTES 1.Dimensions in inches mm Shipping Weights lb a50-8235Size 034 Units Size 044-064Units Table 3A - Physical Data - 50BVC,E,J,K,Q Table 3B - Physical Data - 50BVT,U,V,W,X Multiple Fan Units Fig. 15 - Typical Fan Discharge Connections for a50-7267ef a50-7138efFig. 16 - Duct Static Pressure Probe P/N 39EK20462 Fig. 18 - DHS Pressure Limit Location Fig. 19 - DHS Limit Switch P/NStep 4 - Make Piping Connections a50-8253 50BVT,V,W Units Table 5A - Condenser Pressure Drop50BVC,J,Q Units Table 5B - Condenser Pressure Drop 50BVT,U,V,W,X Units Table 6A - Hot Water Pressure Drop50BVC,E,J,K,Q Units Table 6B - Hot Water Pressure Drop a50-7270ef Step 5 - Complete Electrical ConnectionsTable 7B - Economizer Pressure Drop Curve ft wg, 50BVT,U,V,W,X Units Table 9A - Electrical Data - 50BVC,E,J,K,Q Table 9B - Electrical Data - 50BVT,U,V,W,X Fig. 24 - Typical Wiring 18 to 30 Ton Units a50-7272efTwo-StageCooling Units Fig. 26 - Field Terminal Block a50-7273efTable 10 - Recommended Cables a50-7164tf a39-1867t Installation Unit Discharge Locationa50-7275ef Fig. 27 - Modular Unit VAV Control Panel 10 Kilo- ohm START-UPTable 11 - Thermistor Resistance vs Temperature Values for Supply-AirTemperature Sensor Table 13 - Fan Performance - 50BVC,E,Q020 CV Unit Start-Up Table 14 - Fan Performance - 50BVC,E,Q024 Table 15 - Fan Performance - 50BVC,E,Q028 Table 16 - Fan Performance - 50BVC,E,Q034 Table 17 - Fan Performance - 50BVT,U,V034 Table 17 - Fan Performance - 50BVT,U,V034 cont Table 18 - Fan Performance - 50BVT,U,V044 Table 19 - Fan Performance - 50BVT,U,V054 Table 19 - Fan Performance - 50BVT,U,V054 cont Table 20 - Fan Performance - 50BVT,U,V064 Table 20 - Fan Performance - 50BVT,U,V064 cont VAV Unit Start-Up a50-7425ef OMNIZONE VPAC02-06-04 Fig. 32 - LID Fig. 33 - 50BV VFD Display The LID display will show Year Table 21 - Controller Set Points Table 22 - Controller Hardware PointsTable 23 - Software Points Table 24 - Configuration Parameters Unoccupied space or return air temperature demand MAINTENANCE SERVICE Fig. 35 - Forced Circulation Method a50-186tfFig. 34 - Gravity Flow Method a50-187tf a50-7135tf Evaporator Fan Performance AdjustmentTROUBLESHOOTING Charging the System POSSIBLE CAUSE PROBLEM POSSIBLE CAUSE Table 28 - Unit TroubleshootingPROBLEM CORRECTION PROCEDURE Table 29 - CV Units LED Diagnostic Codes Table 30 - Forcing an Input or OutputTable 31 - Clearing a Forced Input or Output Page Page Page Page UNIT WIRING FIELD WIRINGPage TRANS-1 FIELD WIRINGWIRE LEGEND a50-7282ef PCB2 J1 FIELD WIRING FIELD WIRING UNIT WIRINGPCB1 PCB1 FIELD WIRING LEGEND AND NOTES FOR FIG 10-08 Copyright 2008 Carrier CorporationCatalog No Form 50BV-3SI CONTROLS START-UPCHECKLISTI. PRELIMINARY INFORMATION II. PRE-START-UP III.START-UP