HI
G
H
V
O
L
T
A
G
E
!
DI
S
C
O
NNE
CT
AL
L
P
O
W
E
R BE
F
O
RE
S
E
R
V
ICI
NG
O
R
I
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S
T
A
L
L
IN
G
T
H
IS
U
N
IT
.
MU
L
T
IPL
E
PO
W
E
R
SO
U
R
C
ES M
A
Y B
E
P
R
ESEN
T
.
F
A
IL
U
R
E
T
O
DO
S
O
M
A
Y
CAUS
E
P
R
O
P
E
R
T
Y
DAM
AG
E
,
P
E
R
S
O
NAL
I
N
J
U
R
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O
R
DE
A
T
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.
WIRING DIAGRAM
88
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
W
IRING C
ODE
0140A00322-A
PO
W
ER/HEATER
CONNECTOR
PL1, PL
2
COMPONENT
CODE
TL
F1U,
F
2U
TR
THERMAL
LIMI
T
TRANSFORMER
FUSE LINK
FACT
OR
Y
W
IRING
HIGH
VOLTAGE
LO
W
V
O
LT
A
G
E
FIE
LD W
IRING
HIGH
VOLTAGE
LO
W
V
O
LT
A
G
E
EQUIP
M
ENT
GND
TE
R
M
INAL
P
LU
G
CONNE
C
T
IO
N
JUNC
T
ION
RESI
S
T
OR
PROT
. DE
VICE
INT
E
GRA
T
ED CON
T
R
OL
IN
TE
R
N
AL
TO
FI
EL
D GND
OVERC
URR
ENT
BL
-
BL
U
E
RD -
R
E
D
YL
-
YE
LL
O
W
OR -
ORAN
G
E
B
K
-
BLACK
GY
-
GREY
BR - BROW
N
GR -
GRE
E
N
C
O
L
O
R C
O
DE
S
:
NO
T
E
S
:
1. P
L
ACE
RED
W
IRE
S ON
208 V T
E
RM
INA
L OF
2-
T
RANSFORM
E
R
(T
R
1
/T
R
2
)
FOR
208
V
A
C
O
P
E
R
ATIO
N
.
2. MANU
F
ACT
URE
R’S
S
P
ECI
F
IED
RE
PL
AC
E
M
EN
T
P
A
R
T
S
MU
S
T
BE
USED
W
H
EN
S
E
RVICING.
3. I
F
ANY
OF
T
H
E ORI
G
INA
L W
IRE
S A
S
S
U
P
P
LI
E
D
W
IT
H
T
H
IS
UN
IT
MU
ST
B
E
RE
PLACED,
I
T
MU
S
T
B
E
R
E
P
LACED
W
IT
H
W
IRING MAT
ERI
A
L
H
A
V
IN
G
A
T
E
M
P
ERA
T
URE
RA
T
IN
G
OF A
T
LEA
S
T
10
5C.
US
E COP
P
ER CONDUC
T
ORS ON
L
Y
.
4. UN
IT
MU
S
T
BE
P
E
RM
ANENT
LY
GR
OUND
E
D
AND
CONF
ORM
T
O
N.
E.C AND
LOCAL
CODES.
5.
T
O
RECA
L
L
T
HE LAS
T
6
FAULT
S
,
MOST
RECENT
T
O
LE
AS
T
RECEN
T
, DEPRE
SS
FAULT
REC
A
LL BUT
T
ON
F
OR
MORE
T
H
AN
2
S
E
C
O
NDS
W
HILE
IN S
T
AND
B
Y
(N
O
T
H
ER
M
O
S
T
AT
INPUT
S
)
6. RED
ST
A
T
US LED
PROVIDE
S
NE
T
W
ORK
ST
A
T
US.
GREEN
RX
LED IND
ICAT
E
S
NE
T
W
ORK
T
RAFF
IC.
US
E
LE
ARN
BUT
T
ON T
O
RES
E
T
N
E
T
W
ORK.
7. DI
SCARD
C
ONNEC
T
O
R
P
L
1
W
HEN
INS
T
A
LLING
OPT
IONAL
HEA
T
KI
T
.
8.
T
H
E
P
O
S
IT
ION
OF
S
E
LECT
OR
S
W
IT
CHES
(D
S
1 - DS6
)
IND
ICA
T
E
FACT
O
R
Y
SE
T
T
ING.
9. RE
M
O
V
E
SHOR
T
RED CIRC
U
IT
ING
W
IR
E
AND
PUT
AUX
A
LARM
SW
IT
CH
W
H
EN
INS
T
ALL
IN
G
AUX
AL
A
R
M
S
W
IT
C
H
.
DS6
X1
A
X3
A
X
15A
BS2
X5
A
X2
A
BS1
SEG2
SEG1
DS1
DS2
DS3
DS4
DS5
X7
A
X
12A
X
13A
R
X
LED
X8
A
IN
D
O
OR U
NIT
PCB
THERMISTOR
(HEAT EXCHANGER 1,2)
INTEGRATION TYPE
MPU
CP
U LED
STATUS LED
FA
U
LT RECALL
PRESSURE SENSOR
EE
V C
OIL
EE
V
M
INDOO
R
AIR
CI
R
C
U
LATIOR
BLWR
EART
H
K1R
TB9
K3R
TB6
TB8
K2R
HEATER KIT
OUTP
U
T
LEAR
N
PS
F2U
TB5
TB10
TB4
TB3
TB1
TB7
TB2
F1U
RELAY IN
(AC
C
-O
UT
)
RELAY OUT
(AC
C
-I
N
)
AC24V
TH
1
COM
Y2
O
TR
1
W2
Y1
C
G
W1
R2
1
8
9
6
7
3
4
5
1
2
DE
HUM
BK
RD
RD
BK
RD
BK
GY
BL
WH
BR
BL
RD
BK
RD
BL
SHARE DATA
FLASH WRITER
RAM MONITOR
ON OFF
BK
RD
YL
OR
BL
BL
RD
PL1
(SEE NOTE 7)
RD
BK
SEL
ECTOR S
W
ITCH
DS1 -
DS6
GR
GR
GRO
U
N
D LUG
TH
2
TR
2
THERMOSTAT
C
O
NN
E
C
TIO
N
DISABL
E
D
BK
GY
(SEE NOTE 6)
(SEE NOTE 5)
(SEE NOTE 6)
(SEE NOTE 6)
(SEE NOTE 4)
8
9
6
7
3
4
5
1
2
PL2
24VAC
TB5
TB
4
INSTALLING
AUX ALARM
(ALARM)
(SEE NOTE 9)
RD
~~
~~
~ ~
24VAC
M
O
C
M
O
C
208
VAC
23
0
VA
C
20
8
VA
C
230
VA
C
TR
2
(SEE NOTE 1)
TR
1
(SEE NOTE 1)
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1