Service Manual
135
WIRING DIAGRAMS
HIGH VOLTAGE!
DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS
UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO
DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
BTUh NOMINAL CFM
PURPLE 18000 600
PINK 24000 800
YELL OW 30000 950
RD
PK
PK
GR
PU
PU
YL
WH
F
123
54
24V
12345
CLGN
EM
YL
TABLE-1
WIRE COLOR
0140A00542-A
240V
TR
HTR 1
HTR 2*
TL1
TL2*
DISC
SEENOTE1
C
L1
L2
T1
T2
BL
BR
WH
BK
RD
BK
BL
WH
WH
RD
RD
BL
RD
BK
BR
BK
BK
BK
BK
RD
RD
RD
RD
GR/YL
BL
BL
BL
NOTES:
1. RED WIRE TO BE ON TRANSFORMER
TERMINAL "3" FOR 230 VOLTS AND ON
TERMINAL "2" FOR 208 VOLTS.
2. CONFIRM SPEED TAP SELECTED IS
APPROPRIATE FOR APPLICATION. IF SPEED
TAPS NEEDS TO BE CHANGED, CONNECT
APPROPRIATE WIRE FROM MOTOR TO
"Y" FROM THERMOSTAT/CONDENSER (SEE TABLE-1).
3. ASTERISK (*) INDICATES THAT HEATING
ELEMENT, THERMAL LIMIT, RELAY AND
INTERCONNECTING WIRES AND JUMPERS
OF HEATER #2 ARE DELETED WITH SINGLE
ELEMENT UNITS.
4. COLOR CODES:
BK - BLACK
BL - BLUE
BR - BROWN
GR - GREEN
PU - PURPLE
RD - RED
WH - WHITE
YL - YELLOW
5. WIRING CODE:
FACTORY WIRING:
HIGH VOLTAGE
LOW VOLTAGE
FIELD WIRING:
HIGH VOLTAGE
6. COMPONENT CODE:
C-CONTACTOR
DISC - DISCONNECT SWITCH
EM - EVAPORATER MOTOR
F-FUSE
HTR - HEATER ELEMENT
R-RELAY
SEQ - SEQUENCER
TL - THERMAL LIMIT
TR - TRANSFORMER
BK
GR
RD
BK
BK
BK
BK
BK
RD
RD
RD
SEENOTE#3
MOTOR CONNECTION
ONLYONEWILLBECONNECTED
(SEE NOTE 2)
OPTIONAL
CONNECTION
UNUSED WIRES MUST HAVE THEIR ENDS TAPED OR
CAPPED
FIELD CONNECTIONS
SEE NOTE 2
USE N.E.C CLASS 2 WIRE
L2
RD
L1
BK
AWUF310516AE, AWUF310816AD, AWUF321016AD