2S1
L1 L2
P
2T1
24V
2T1
24V
CONTROL CIRCUIT
NEC CLASS-2
24VAC 50/60HZ
LOW VOLTAGE SECTION
TO
(SEE NAMEPLATE)
LINE VOLTAGE
FUSES
OPTIONAL
208
240
480
LINE VOLTAGES
SINGLE PHASE
STAGES
1
UNLESS OTHERWISE NOTED, ALL SWITCHES ARE SHOWN AT 25° C
(77° F), AT ATMOSPHERIC PRESSURE, AT 50% RELATIVE HUMIDITY,
WITH ALL UTILITIES TURNED OFF, AND AFTER A NORMAL SHUTDOWN
HAS OCCURRED.
NOTES:
1.
ALL FIELD WIRING MUST BE IN ACCORDANCE WITH THE
NATIONAL ELECTRIC CODE (NEC), STATE AND LOCAL REQUIREMENTS.
3.
DESCRIPTION
2K1,2K2,2K3,2K4
DEVICE
DESIGNATION
HEATER CONTACTOR
LEGEND
2S1 DISCONNECT SWITCH
2F1,2F2,2F3
FUSE
2T1
CONTROL POWER TRANSFORMER
2S2 HIGH TEMPERATURE CUTOUT (MANUAL RESET)
2S3 HIGH TEMPERATURE CUTOUT (AUTO RESET)
2S4 SUPPLY AIR PROVING SWITCH
JACK/SOCKET CONNECTOR
PLUG/PIN CONNECTOR
2J*-*
2P*-*
2HR*
HEATER EL
EMENT
DASHED LINES INDICATE RECOMMENDED FIELD WIRING BY OTHERS.
DASHED LINE ENCLOSURES AND/OR DASHED DEVICE OUTLINES
INDICATE COMPONENTS THAT ARE OPTIONAL OR GROUPED
TOGETHER. SOLID LINES INDICATE WIRING BY TRANE.
2.
SOLID STATE CONTACTORS
POWER SUPPLY
SSR1, SSR2
PW1
POWER SUPPLY
OPTIONAL
2F1
2F2
2S4
LOW VOLTAGE
LOCATED IN
SECTION
YEL
SSR1
OUTPUT
STATUS
1/L1
OUTPUT
P3
P1
P2
P4
2/T1
ORG
GRY
BL BL
BK BK
SSR1
STATUS
OUTPUT
1/L1
OUTPUT
P2
P1
P4
P3
2/T1
GND
2J1-1 2P1-1
2J1-2 2P1-2
ORG
GRY
2J1-2 2P1-2
2J1-1 2P1-1
HEAT 1(0-10Vdc)
2K4
2K4
BLU
BLU
YEL
BLU
2HR1
2J2-1 2P2-1
2J1-2 2P1-2
VDC
+24
VAC
BLU
24
PW1
YEL
BRN
2S2
YEL
BRN
YEL
2K4
BLU
2S3
BLU
YEL
BLU
BRN
YEL
2J1-5 2P1-5
BLU
24VAC (HOT) BLU
24VAC Ret - GND
2J1-6 2P1-6
2J1-4 2P1-4
24Vdc
2J2-6 2P2-6
2J2-5 2P2-5
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