Trane BCHC, BCVC, BCXC-SVX01B-EN manual Bcxc with DX Coil, Hydronic Heating, and Tracer ZN520

Wiring Diagrams

BCXC with DX Coil, Hydronic Heating, and Tracer ZN520

•460 volt/3 phase

•economizer damper

•condensate overflow

•wall-mounted zone sensor

NOTES:

1UNLESS OTHERWISE NOTED, ALL SWITCHES ARE SHOWN AT 25˚ C (77˚ F), AT ATMOSPHERIC PRESSURE, AT

50% RELATIVE HUMIDITY, WITH ALL UTILITIES TURNED

1OFF, AND AFTER A NORMAL SHUTDOWN HAS OCCURED.

2DASHED LINES INDICATE RECOMMENDED FIELD WIRING

2BY OTHERS. DASHED LINE ENCLOSURES AND/OR DASHED DEVICE OUTLINES INDICATE COMPONENTS PROVIDED BY THE FIELD. SOLID LINES INDICATE WIRING BY

460/60/3

L1 L2 L3

DEVICE PREFIX LOCATION CODE

AREA LOCATION

1	MAIN CONTROL PANEL
2	SUPPLY FAN AND COIL SECTION
3
4	MIXING BOX SECTION

	LEGEND
DEVICE	DESCRIPTION	LINE
DESIGNATION		NUMBER
1CB1	TRANSFORMER CIRCUIT BREAKER	16
1K1	SUPPLY FAN CONTACTOR	20
1K3	DX RELAY	24

3

TRANE CO.

5 EXTERNAL PIPING

1S1 MANUAL DISCONNECT SWITCH 7

7S6 7S6

6

1T1 CONTROL POWER TRANSFORMER 16

3ALL FIELD WIRING MUST BE IN ACCORDANCE WITH THE NATIONAL ELECTRIC CODE (NEC), STATE AND LOCAL

4REQUIREMENTS.

4 NUMBERS ALONG THE RIGHT SIDE OF THE SCHEMATIC

5DESIGNATE THE LOCATION OF CONTACTS BY LINE NUMBER.

5 FIELD SUPPLIED CONTROL RELAYS, POWERED BY THIS UNIT,

7 FIELD INSTALLED DEVICE

1TB1-L1,-L2	CONTROL TERMINAL BLOCK
1U1	ZN CONTROLLER	18
2B1	SUPPLY FAN MOTOR	11
2RT1	DISCHARGE AIR TEMP SENSOR	33
2S2	CONDENSATE OVERFLOW SWITCH	32

6

MUST BE PILOT DUTY RATED, 24VAC COIL, 6VA MAX.

2S3 FREEZE-STAT 30

6WIRING TO ZONE SENSOR MUST BE 16-22 AWG, CU TWISTED PAIR SHIELDED CABLE AND NO MORE THAN 1000 FT LG.

7SHIELD MUST BE GROUNDED AT UCM END(END CHASSIS) AND TAPED AT THE OTHER END. IF INSTALLED IN CONDUIT, DO NOT INSTALL WIRES IN CONDUIT THAT CONTAINS WIRES 24VAC

8OR HIGH VOLTAGE POWER WIRES.

7 COMMUNICATION WIRE MUST BE TRANE PART NO.

9400-20-28, OR WINDY CITY OR CONNECT AIR

"LEVEL 4" CABLE. MAXIMUM OF 4500 FOOT AGGREGATE RUN.

10CAUTION! DO NOT RUN POWER IN THE SAME

CONDUIT OR WIRE BUNDLE WITH COMMUNICATION LINK.

FOR ADDITIONAL INFORMATION REFER TO EMTX-EB-68.

11

8 BLUE CONNECTORS USED FOR COOLING CIRCUIT, RED CONNECTORS USED FOR HEATING CIRCUIT.

12BLUE WIRES USED FOR COOLING CIRCUIT, RED WIRES USED FOR HEATING CIRCUIT.

139

14

15

			W(BLK)	1CB1
16
		E	1TB1-L2
17
			11
18	1TB1-L1	C,K,M (BLK)
		10
19				1K1

GRN

1S1

EQUIPMENT

GROUND

BLU

BLK BLK BLK

1A 2A 3A

1K1

A,BLK/RED

1K12

A,BLK

1K1

A

BLK

BLK/RED

1T1

24V

75VA

2S8 EVAP DEFROST FROSTAT 24

4A		2B1		7B3	HEATING COIL VALVE MOTOR		25
	COM			7K5	EXHAUST FAN CONTROL RELAY		21
5A			M
	LOW	31
6A				7RT3	OUTSIDE AIR TEMP SENSOR		35
	HI		GRN	7S6	FUSED DISCONNECT SWITCH		3
				7U4	MIXING BOX DAMPER ACTUATOR		27
				7U6	ZONE SENSOR MODULE		20
				P	PLUG CONNECTOR
				J	JACK CONNECTOR
YEL				1TB1-L2	B(BLK)
				11
				D(WHT)
		1U1
TB1-1 24V	POWER		GND TB1-2	D
J1					7U6	6

W	E	(BLK)
20

17A(BLK)

			1K1-10,12
1 HIGH SPEED	ZONE TB3-1	1 ZONE

1TB1-L1

21

22

1TB1-L1

23

24

1TB1-L1

25

26

27

28

1TB1-L1

10

7K5

1P1-1

5

14A(YEL)

10

1K2

1P1-2

1P2-1

5

1K3

5P4-2

5P3-2

1P2-2

1P1-3

K

5P3-1

5P4-1

G

DX COOLING

10

1J2-1

2J3-1

5J4-1

2

4

5J4-2

2J3-2

1J2-2

1P1-5

8

J1P2-3

1K3

5P32S8-3

1P2-1

5P3-3

5P4-3

G,J

5P4-3 38A

19B

1P21P2--23

C

1J2-1

1J2-3

2J3-3

5J4-3

1

35J4-3

2J3-3

1J2-3

1P1-56

7B3 (7VA MAX)

5P7-2

5P6-2

1J2-2

2S7

1P5-1

L

5P6-1

5P7-1

15A

B

1P5-2

C

M

D 5J7-1

M

10

1J5-1

2J6-1

5J7-2

2J6-2

1J5-2

1P1-9

8

1P5-3

5P6-3

5P7-3

5P7-3

5P6-3

1P5-3

1J5-3

2J6-3

5J7-3

5J7-3

2J6-3

1J5-3

1P1-10

7U4

1J8-1

E(WHT)

1P8-3

4P9-3

2J9-1

12A(PNK)

SPLICE

TR1 CCW

SPLICE

1J8-3

2J9-3

4P9-1

1P8-1

1P1-11

B(BLK)

1P8-4

4P9SPLICE-4

TR

CW

SPLICE2J9-2

1J8-2

13A(BRN)

1J8-4

2J9-4

4P9-2

1P8-2

1P1-12

2 EXHAUST	GND TB3-2		2	COM
	SET TB3-3		3	CSP
	FAN TB3-4		4	FAN SWITCH
5 ON/OFF	TB2-6		6	COMM LOW(-)		1K3-23
		-
CLG	COMM
9 ON/OFF	TB2-5	+	5	COMM HI(+)
HTG
			LO(-)
	TB2-4
		-		TRACER
	COMM
			HI(+)	COMM OUT
11 OPEN
	TB2-3	+	SPLICE AND
OAD
			INSULATE SHIELDS
12 CLOSE	TB2-2
		-	LO(-)
	COMM			TRACER	7
				COMM IN

29

TB4-1 BOP	TB2-1
	HI(+)

30

31

32

33

34

35

36

37

38

39

40

41

42

WARNING

Hazardous Voltage!

Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power can not be inadvertently energized. Failure to disconnect power before servicing could result in death or serious injury.

NOTICE

Use copper conductors only!

Unit terminals are not designed to accept other conductor types. Failure to use copper conductors could cause equipment damage.

9	GENERIC BOP
5RT2	1P11-1
5P10-1	2J10-1	1J11-1
	1P11-2

5P10-2	2J10-2		1J11-2
	27RT1	B	34A(BRN)
		2P12-1	2J12-1
		B	35A(BRN)
		2P12-2	2J12-2
SPLICE	7RT3	SPLICE

GENERIC	+
		21A(GRA)					2S3
TB4-2 24V	J2-1
BI-1
FRZ-STAT	J2-2		22A(GRA)
		23A(PUR)		2P13-1		2S2			B	2J13-2
	J2-3
BI-2			2J13-1		B				2P13-2
								GREEN PLUG
CONDENSATE		24A(PUR)
J3-3	J2-4
AI-2 DAT
J3-4	J2-5									OR FIELD RECONFIGURED
BI-3						OCC/UNOCC
										AS GENERIC
J3-5	J2-6
AI-3-OAT							2S5
J3-6

BCXC-SVX01B-EN 91