90 BCXC-SVX01B-EN
Wiring Diagrams
BCXC with DX Coil and Tracer ZN520
• 277 volt/1 phase
• economizer damper
• condensate overflow
• wall-mounted zone sensor
5 ON/OFF
CLG
DX COOLING
C
38A
G
,K
K
G,J
DX RELAY
1K3
2S8
EVAP DEFROST FROSTAT
24
24
1K3-23
19B
J
GENERIC BOP
TB4-1 BOP
TB4-2 24V
GENERIC
CONTROL BOX
ELECTRIC HEAT
STAGE 1
BRN
X
ORG
COMMON
,X
9 STAGE 1
15C(ORG)
BLK
WHT
BLK,BLK
WHT,
5A
4A(WHT)
1K1
M
1
2B1
PUR
STAGE 2
10 STAGE 2
16C(PUR)
ELECTRIC HEAT
CONTROL BOX
ELECTRIC HEAT CONTROL BOX
ELECTRIC HEAT CONTROL BOX
2S7
ELECTRIC HT LOCKOUT SWITCH
ELECTRIC HT LOCKOUT SWITCH
23
7RT1
DISCHARGE AIR TEMP SENSOR
DISCHARGE AIR TEMP SENSOR
33
SPLICE
SPLICE
J3-3
J3-4
AI-2 DAT
COMM HI(+)
COMM LOW(-)
CSP
3
FAN SWITCH
5
4
6
COM
2
ZONE
1
ZONE TB3-1
GND TB3-2
SET TB3-3
FAN TB3-4
TB2-6
-
COMM
TB2-5
+
E(WHT)
B(BLK)
27
MIXING BOX DAMPER ACTUATOR
MIXING BOX DAMPER ACTUATOR
4U4
TR
CW
4U4
CCW
TR1
CCW
CW
TR1
TR
12 CLOSE
OAD
11 OPEN
13A(BRN)
12A(PNK)
2 EXHAUST
B
B
X
R
E
C
C
V
V
7RT3
OUTSIDE AIR TEMP SENSOR
35
J3-5
AI-3-OAT
J3-6
SPLICE
SPLICE
2S2
CONDENSATE OVERFLOW SWITCH
CONDENSATE OVERFLOW SWITCH
32
J2-4
J2-3
BI-2
CONDENSATE
23A(PUR)
24A(PUR)
B
B
GREEN PLUG
36
FAN STATUS SWITCH
2S5
J2-7
J2-8
26A(YEL)
25A(YEL)
d
P
BI-4
FAN-STAT
BRN
BRN
277/60/1
N
L1
D(WHT)
B(BLK)
2
1
TRANE CO.
BY THE FIELD. SOLID LINES INDICATE WIRING BY
BY THE FIELD. SOLID LINES INDICATE WIRING BY
DEVICE OUTLINES INDICATE COMPONENTS PROVIDED
DEVICE OUTLINES INDICATE COMPONENTS PROVIDED
BY OTHERS. DASHED LINE ENCLOSURES AND/OR DASHED
BY OTHERS. DASHED LINE ENCLOSURES AND/OR DASHED
DASHED LINES INDICATE RECOMMENDED FIELD WIRING
DASHED LINES INDICATE RECOMMENDED FIELD WIRING
UNLESS OTHERWISE NOTED, ALL SWITCHES ARE SHOWN
UNLESS OTHERWISE NOTED, ALL SWITCHES ARE SHOWN
OFF, AND AFTER A NORMAL SHUTDOWN HAS OCCURED.
OFF, AND AFTER A NORMAL SHUTDOWN HAS OCCURED.
50% RELATIVE HUMIDITY, WITH ALL UTILITIES TURNED
50% RELATIVE HUMIDITY, WITH ALL UTILITIES TURNED
AT 25° C (77° F), AT ATMOSPHERIC PRESSURE, AT
AT 25° C (77° F), AT ATMOSPHERIC PRESSURE, AT
NOTES:
1
2
3
4
5
6
MAIN CONTROL PANEL
SUPPLY FAN AND COIL SECTION
SUPPLY FAN AND COIL SECTION
MIXING BOX SECTION
EXTERNAL PIPING
AREA
DEVICE PREFIX LOCATION CODE
DEVICE PREFIX LOCATION CODE
1K1
SUPPLY FAN CONTACTOR
ALL FIELD WIRING MUST BE IN ACCORDANCE WITH THE
ALL FIELD WIRING MUST BE IN ACCORDANCE WITH THE
NATIONAL ELECTRIC CODE (NEC), STATE AND LOCAL
NATIONAL ELECTRIC CODE (NEC), STATE AND LOCAL
REQUIREMENTS.
3
20
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
FIELD INSTALLED DEVICE
7
NUMBER
LINE
LEGEND
DESCRIPTION
DESIGNATION
DEVICE
16
CONTROL POWER TRANSFORMER
CONTROL POWER TRANSFORMER
1T1
CONTROL TERMINAL BLOCK
1TB1-L1,-L2
18
ZN CONTROLLER
1U1
11
SUPPLY FAN MOTOR
2B1
3
FUSED DISCONNECT SWITCH
7S6
20
ZONE SENSOR MODULE
7U6
PLUG CONNECTOR
P
JACK CONNECTOR
J
LOCATION
GRN
YEL
BLU
7K5
EXHAUST FAN CONTROL RELAY
EXHAUST FAN CONTROL RELAY
21
OR HIGH VOLTAGE POWER WIRES.
OR HIGH VOLTAGE POWER WIRES.
NOT INSTALL WIRES IN CONDUIT THAT CONTAINS WIRES 24VAC
NOT INSTALL WIRES IN CONDUIT THAT CONTAINS WIRES 24VAC
SHIELD MUST BE GROUNDED AT UCM END(END CHASSIS) AND
SHIELD MUST BE GROUNDED AT UCM END(END CHASSIS) AND
TAPED AT THE OTHER END. IF INSTALLED IN CONDUIT, DO
TAPED AT THE OTHER END. IF INSTALLED IN CONDUIT, DO
PAIR SHIELDED CABLE AND NO MORE THAN 1000 FT LG.
PAIR SHIELDED CABLE AND NO MORE THAN 1000 FT LG.
WIRING TO ZONE SENSOR MUST BE 16-22 AWG, CU TWISTED
WIRING TO ZONE SENSOR MUST BE 16-22 AWG, CU TWISTED
75VA
BLK
W(BLK)
1CB1
TRANSFORMER CIRCUIT BREAKER
TRANSFORMER CIRCUIT BREAKER
16
OR FIELD RECONFIGURED
AS GENERIC
J2-6
J2-5
OCC/UNOCC
TB1-1 24V
1 HIGH SPEED
J1
TB2-4
COMM
COMM
+
TB2-1
-
TB2-3
TB2-2
+
-
COMM OUT
INSULATE SHIELDS
COMM IN
TRACER
TRACER
LO(-)
HI(+)
HI(+)
SPLICE AND
LO(-)
D
GND TB1-2
POWER
1U1
BI-3
17A(BLK)
COMMUNICATION WIRE MUST BE TRANE PART NO.
COMMUNICATION WIRE MUST BE TRANE PART NO.
400-20-28, OR WINDY CITY OR CONNECT AIR
400-20-28, OR WINDY CITY OR CONNECT AIR
AGGREGATE RUN.
"LEVEL 4" CABLE. MAXIMUM OF 4500 FOOT
"LEVEL 4" CABLE. MAXIMUM OF 4500 FOOT
FOR ADDITIONAL INFORMATION REFER TO EMTX-EB-68.
FOR ADDITIONAL INFORMATION REFER TO EMTX-EB-68.
CAUTION! DO NOT RUN POWER IN THE SAME
CAUTION! DO NOT RUN POWER IN THE SAME
CONDUIT OR WIRE BUNDLE WITH COMMUNICATION LINK.
CONDUIT OR WIRE BUNDLE WITH COMMUNICATION LINK.
7U6
C
E
W
2 EXHAUST
14A(YEL)
(BLK)
(BLK)
1K1-10,12
DESIGNATE THE LOCATION OF CONTACTS BY LINE NUMBER.
DESIGNATE THE LOCATION OF CONTACTS BY LINE NUMBER.
NUMBERS ALONG THE RIGHT SIDE OF THE SCHEMATIC
NUMBERS ALONG THE RIGHT SIDE OF THE SCHEMATIC
4
FIELD SUPPLIED CONTROL RELAYS, POWERED BY THIS UNIT,
FIELD SUPPLIED CONTROL RELAYS, POWERED BY THIS UNIT,
MUST BE PILOT DUTY RATED, 24VAC COIL, 6VA MAX.
MUST BE PILOT DUTY RATED, 24VAC COIL, 6VA MAX.
11
1TB1-L2
9
6
1S1
7S6
7S6
7S6
7S6
7S6
7S6
1T1
24V
9
7S6
7S6
2S7
2B1
1
COM
LOW
HI
2B1
3
2B1
1
COM
LOW
HI
2B1
3
1K1
1K2
7
7K5
1K2
1TB1-L1
10
1TB1-L1
10
1TB1-L1
10
1TB1-L1
10
1TB1-L1
10
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
11
1TB1-L2
5
1K1
1K1
1K1
1K1
1K1
1K1
1K1
1K2
1K1
1K2
1P1-3
1P1-3
2RT1
2P12-1
2J12-1
2P12-2
2J12-2
2J13-1
2P13-1
2S2
2P13-2
2J13-2
2S3
2S5
1K1
1K1
1K1
1K1
1K1
1K1
2J9-4
4P9-4
2J9-3
4P9-3
1P1-11
1P1-12
4P9-2
2J9-2
4P9-1
2J9-1
5P3-2
2J3-2
1P2-2
1J2-2
1J2-1
1P2-1
2J3-1
5P3-1
1P1-5
1P1-5
1P1-6
1J2-1
1P2-1
1P1-5
1J5-1
1P5-1
1P1-9
1P1-10
1P5-3
1J5-3
5P6-3
2J6-3
1P1-9
1J5-1
1P5-1
1P1-9
1J5-1
1P5-1
5RT2
5P10-1
2J10-1
5P10-2
2J10-2
1J2-1
1P2-1
1P1-6
1P1-5
1J2-1
1P2-1
1P1-5
1J5-1
1P5-1
1P1-10
1P1-9
1J5-1
1P5-1
1P1-9
1P1-11
1P1-12
7RT3
7RT1
1CB1
1P1-2
1P1-1
1P1-9
1P1-10
1J8-3
1P8-3
1J8-4
1P8-4
1P8-1
1J8-1
1P8-2
1J8-2
5P3-2
2J3-2
1P2-2
1J2-2
1P2-3
1J2-3
5P3-3
2J3-3
2J3-1
5P3-1
1J2-1
1P2-1
2J6-1
5P6-1
5P6-2
2J6-2
1P5-2
1J5-2
2J6-1
5P6-1
5P6-3
2J6-3
5P6-2
2J6-2
1P5-3
1J5-3
1P5-2
1J5-2
2J6-1
5P6-1
5P6-2
2J6-2
1P5-2
1J5-2
2J3-1
5P3-1
1P2-3
1J2-3
5P3-3
2J3-3
5P3-2
2J3-2
1P2-2
1J2-2
2J6-1
5P6-1
5P6-2
2J6-2
1P5-2
1J5-2
2J3-1
5P3-1
1P2-2
1J2-2
5P3-2
2J3-2
2J3-1
5P3-1
5P3-3
2J3-3
1P2-3
1J2-3
5P3-2
2J3-2
1P2-2
1J2-2
2J6-1
5P6-1
1P5-3
1J5-3
1P5-2
1J5-2
5P6-3
2J6-3
5P6-2
2J6-2
1P11-1
1J11-1
1P11-2
1J11-2
1P1-11
1P1-12
1J8-3
1P8-3
1J8-4
1P8-4
1P8-2
1J8-2
1P8-1
1J8-1
1J8-3
1P8-3
1J8-4
1P8-4
1P8-2
1J8-2
1P8-1
1J8-1
5
6
7
5P4-2
5J4-2
5P7-2
5J7-2
5J4-1
5P4-1
5J7-1
5P7-1
5P4-3
5J4-3
5J4-1
5P4-1
5P4-2
5J4-2
5J4-1
5P4-1
5P4-2
5J4-2
5P4-3
5J4-3
5J4-1
5P4-1
5P4-2
5J4-2
5J4-1
5P4-1
5P4-2
5J4-2
5P4-3
5J4-3
5J7-1
5P7-1
5P7-3
5J7-3
5P7-2
5J7-2
5P7-2
5J7-2
5P7-3
5J7-3
5J7-1
5P7-1
5J7-1
5P7-1
5P7-2
5J7-2
5J7-1
5P7-1
5P7-3
5J7-3
5P7-2
5J7-2
1P1-5
2S8
1K3
1
3
1K3
2
4
1P2-2
1J2-2
1J2-1
1P2-1
5
ƽ 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.
