Trane BCVC, BCHC, BCXC-SVX01B-EN manual Bcxc with DX Coil and Tracer ZN520, Field Installed Device

Wiring Diagrams

BCXC with DX Coil and Tracer ZN520

•277 volt/1 phase

•economizer damper

•condensate overflow

•wall-mounted zone sensor

NOTES:

1 UNLESS OTHERWISE NOTED, ALL SWITCHES ARE SHOWN	277/60/1
AT 25° C (77° F), AT ATMOSPHERIC PRESSURE, AT
50% RELATIVE HUMIDITY, WITH ALL UTILITIES TURNED	N	L1

1OFF, AND AFTER A NORMAL SHUTDOWN HAS OCCURED.

2 DASHED 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 TRANE CO.

3

7S6 7S6

3 ALL FIELD WIRING MUST BE IN ACCORDANCE WITHTHE

NATIONAL ELECTRIC CODE (NEC), STATE AND LOCAL

4REQUIREMENTS.

4 NUMBERS ALONGTHE RIGHT SIDE OFTHE SCHEMATIC

5DESIGNATETHE LOCATION OF CONTACTS BY LINE NUMBER.

5 FIELD SUPPLIED CONTROL RELAYS, POWERED BYTHIS UNIT,

DEVICE PREFIX LOCATION CODE			LEGEND
AREA	LOCATION	DEVICE	DESCRIPTION	LINE
1	MAIN CONTROL PANEL	DESIGNATION		NUMBER
2	SUPPLY FAN AND COIL SECTION	1CB1	TRANSFORMER CIRCUIT BREAKER	16
3		1K1	SUPPLY FAN CONTACTOR	20
4	MIXING BOX SECTION	1K3	DX RELAY	24
5	EXTERNAL PIPING
6	ELECTRIC HEAT CONTROL BOX	1T1	CONTROL POWERTRANSFORMER	16
7	FIELD INSTALLED DEVICE	1TB1-L1,-L2	CONTROLTERMINAL BLOCK
		1U1	ZN CONTROLLER	18
		2B1	SUPPLY FAN MOTOR	11
		2S2	CONDENSATE OVERFLOW SWITCH	32

6	MUST BE PILOT DUTY RATED, 24VAC COIL, 6VA MAX.
	6 WIRINGTO ZONE SENSOR MUST BE 16-22 AWG, CUTWISTED	ELECTRIC HEAT
7	PAIR SHIELDED CABLE AND NO MORETHAN 1000 FT LG.	CONTROL BOX
	SHIELD MUST BE GROUNDED AT UCM END(END CHASSIS) AND

TAPED ATTHE OTHER END. IF INSTALLED IN CONDUIT, DO	1S1
NOT INSTALL WIRES IN CONDUITTHAT CONTAINS WIRES 24VAC

8OR HIGH VOLTAGE POWER WIRES.

7 COMMUNICATION WIRE MUST BETRANE PART NO. WHT BLK

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

		"LEVEL 4" CABLE. MAXIMUM OF 4500 FOOT	1K1
		AGGREGATE RUN.
10			WHT,BRN
		CAUTION! DO NOT RUN POWER INTHE SAME
		CONDUIT OR WIRE BUNDLE WITH COMMUNICATION LINK.	1K12
		FOR ADDITIONAL INFORMATION REFERTO EMTX-EB-68.
11
	8
			1K1
12			BLK,BLK
13	9		BLK
14			BRN
15
			1T1

4A(WHT)2B1

COM

M

LOW 31

5A

HI

GRN

2S5	FAN STATUS SWITCH	36
2S7	ELECTRIC HT LOCKOUT SWITCH	23
2S8	EVAP DEFROST FROSTAT	24
4U4	MIXING BOX DAMPER ACTUATOR	27
7K5	EXHAUST FAN CONTROL RELAY	21
7RT1	DISCHARGE AIRTEMP SENSOR	33
7RT3	OUTSIDE AIRTEMP SENSOR	35
7S6	FUSED DISCONNECT SWITCH	3
7U6	ZONE SENSOR MODULE	20
P	PLUG CONNECTOR
J	JACK CONNECTOR

W(BLK)

1CB1

BLU

16

24V

1TB1-L2

75VA

17

E

11

18

1TB1-L1

C,K

(BLK)

10

19

W,X

E

(BLK)

1K1

17A(BLK)

20

1TB1-L1

10

7K5

1P1-1

1TB1-L1

5

14A(YEL)

21

10

1K2

1P1-2

22

1P2-1

5

1K3

5P4-2

5P3-2

1P2-2

1P1-3

1TB1-L1

K

5P3-1

5P4-1

G

23

DX COOLING

10

1J2-1

2J3-1

5J4-1

2

4

5J4-2

2J3-2

1J2-2

1P1-5

8

J1P2-3

1K3

5P32S8-319B 1P21P2--23

24

1P2-1

5P3-3

5P4-3

G,J

5P4-3

38A

C

1J2-1

1J2-3

2J3-3

5J4-3

1

35J4-3

2J3-3

1J2-3

5P7-2

5P6-2

1J2-2 1P1-56

1TB1-L1

X 2S7

1P5BRN-1

ORG

1P5-15C(ORG)2

5P6-1

5P7-1

25

COMMON

STAGE 1

10

1J5-1

2J6-1

5J7-1

5J7-2

2J6-2

1J5-2

1P1-9

8

ELECTRIC HEAT

5P6-3

5P7

-3

5P7-3

5P6-3

1P5-3

1P5-3

PUR

26

CONTROL BOX

STAGE 2

16C(PUR)

1J5-3

2J6-3

5J7-3

4U4

5J7-3

2J6-3

1J5-3

1P1-10

E(WHT)

1P8-3

4P9-3

C

2J9-1

B

1J8-1

12A(PNK)

27

TR1

TR1 CCW

CCW

1J8-3

V

X

2J9-3

4P9-1

1P8-1

1P1-11

28

B(BLK)

1P8-4

4P9-4

TR

CW

C

2J9-2

B

1J8-2

13A(BRN)

TR

CW

V

R

1J8-4

2J9-4

4P9-2

1P8-2

1P1-12

29

9

GENERIC BOP

30

5RT2

1P11-1

31

5P10-1

2J10-1

1J11-1

1P11-2

WARNING

32

5P10-2

2J10-2

1J11-2

33

Hazardous Voltage!

SPLICE

27RT1 SPLICE

2P12-1

2J12-1

34Disconnect all electric power, including

	remote disconnects before servicing. Follow	2P12-2 2J12-2
		SPLICE 7RT3 SPLICE
35	proper lockout/tagout procedures to ensure
	the power can not be inadvertently

36energized. Failure to disconnect power before

37	servicing could result in death or serious
	injury.

38

39NOTICE

40Use copper conductors only!

41Unit terminals are not designed to accept

other conductor types. Failure to use copper

42conductors could cause equipment damage.

YEL

1TB1-L2

B(BLK)

11

D(WHT)

1U1

TB1-1 24V

POWER GNDTB1-2

D

7U6

6

J1

1K1-10,12

1 HIGH SPEED

ZONETB3-1

1

ZONE

2 EXHAUST

GNDTB3-2

2

COM

SETTB3-3

3

CSP

FANTB3-4

4

FAN SWITCH

5 ON/OFF

TB2-6

6

COMM LOW(-)

1K3-23

-

CLG

COMM

9 STAGE 1

TB2-5

+

5

COMM HI(+)

10 STAGE 2

TB2-4

LO(-)

-

TRACER

COMM

HI(+)

COMM OUT

11 OPEN

TB2-3

+

SPLICE AND

OAD

INSULATE SHIELDS

12 CLOSE

TB2-2

-

LO(-)

COMM

TRACER

7

COMM IN

TB4-1 BOP

TB2-1

HI(+)

GENERIC

+

2S3

TB4-2 24V

J2-3

23A(PUR)

2P13-1 2S2

B

2J13-2

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

25A(YEL)

2S5

J3-6

J2-7

BI-4

Pd

FAN-STAT

26A(YEL)

J2-8

90 BCXC-SVX01B-EN