108
ACCESSORIES 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.
MBVC
CO
N
T
F
A
N
4 CIRC UIT HEA TER
CONN ECT OR
COM
CIRCULATOR BLOWER
1
1
SEE NOTE 6
CIRC ULAT O R
CIRCU LATOR
RD
WH
TO
MICRO
R
CAS (1)
AIR
230 VAC
7 SEGMENT
DIAGNOSTIC
DISPLAY
PL1
SEE
NOTE 7
O
DEHUM
4
C
IR
C
U
IT
M
O
T
O
R
CO
N
N
E
C
TO
R
24 VAC
RD
4
BLWR
LEARN
5
DIP SWITCHES
AIR
40 VA
2
3
1
2
8
40 VA TRANS FORMER, SEE N OTE 1
L1
9
INDOOR
7
24 VAC
4
BK
1
5
BL
PL2
FUSE 3 A
208/230 VAC
GRND
ECM MOTOR
HARNESS
GRND
6
L2
6
L1
COM
BR
G
G
INTEGRATED CONTROL MODULE
O
4
3
W2
BK
3
1
2
4
V T
H
E
R
MO
S
T
A
T
C
O
NNE
CT
I
ONS
COM
W2
L2
DISCONNECT
SEE NOTE 5
2
BL
Y2
BK
TR
C
1
3
GRND (4)
2
2
IND O OR
9
RD
TH
+VDC (1)
Y1
208 VAC
TH
BK
Y2
RX (2)
RD
GRND
4
24 V 3 A
W1
GRND
4
GN
Y1
R
FAULT
RECALL
W1
8
5
W1 (1)
C
RD
DEHUM
TX (3)
BL
TWO-STAGE INTEGRATED CONTROL MODULE
3
GRND
HEAT 2 COIL/ R2
RD
TRANSFORMER
2
4
V
T
HE
RM
O
S
T
A
T
C
O
N
N
E
CT
IO
N
S
HEAT 1 COIL/R1
GN
7
TR
2
BLW R
EQ UIPMENT GRND
TERMINAL
PLUG CONNECTION
LOW VOLTAGE FIE LD
HI VOL TAGE FIE LD
JUNCTI ON
HI VOL TAGE (230V)
PROT. DEV ICE
INTEGRATED CONTROL
LOW VOLTAGE (24V)
FIE LD SPL ICE
INTE RNAL TO
FIEL D GRND
OV ERCUR RENT
BK ---- BLACK
OR ---- ORANGE
BL ---- BLUE
PK ---- PINK
GY ---- GRAY
RD ---- RED
WH ---- WHITE
PU ---- PURPLE
YL ---- YELLOW
BR ---- BROWN
COLOR CODES:
GN ---- GREEN
NOTES:
1. PLACE RED WIRES ON TRANSFORMER TERMIN AL 2 FOR 208 VAC OPER ATION.
2. MANUFACTURER'S
SPECIFIED RE PLACE MENT PA RTS MU ST BE U SED WHEN SERVICING.
3. IF ANY OF THE ORIGINAL WIRES
AS SU PPL IED WITH THIS UNIT MU ST BE R EPLACED,
IT MU ST BE R EPLACED WITH WIR ING M ATERI AL HAVING A TE MPER ATURE R ATING OF AT
LEAST 105°C. USE CO PPER CON DUCTORS O NLY.
4. UNIT MUST BE PER MANE NTLY GROUNDED AN D CONF ORM TO N.E.C A ND LOC AL CODES.
5. TO RECA LL THE LAST 6 FA ULTS, M OST RECENT TO LEA ST RECENT, D EPRE SS
SWITCH FOR MORE T HAN 2 SECONDS WHILE IN
STANDBY (NO THERM OSTAT INPU TS)
6. RED STATUS LED PROVIDES N ETWORK STATUS. GREEN RX LED IND ICATE S NETWORK TRAFFIC.
USE LEARN B UTTON TO RES ET N ETWORK.
7. DISCARD C ONNECTOR PL1 WHEN INS TALLING O PTIONAL H EAT KI T.
8. THE CONDENS ATE ALARM SW ITCH (CA S) TERMIN ALS CAN ONLY BE UTILIZED W ITH CO MMUN ICATING
MODE S ETUPS AND MU ST BE ENA BLED WITH A COMMUNIC ATING THERM OSTAT. THIS F EATURE IS N OT
OPER ATIONAL W ITH LEGACY SY STE MS.
USE N.E.C CLA SS 2 WIRE.
0140A00244-B
1
2
3
CONDENSATE SWITCH
CAS (2)
W2 (2)
FUSE
CAS
SEE NOTE 8
CFM LED
STATUS
LED
SEE NOTE 6
SEE NOTE 6
RX LED
HT
R
K
IT
(K
W
)
C
O
O
L
AF
PR
O
F
IL
E
D
E
H
U
M
EN
ABL
E
T
R
IM
EN
ABL
E
TR
IM
%
AF
SE
L
E
C
T
RE SISTOR
S1 S2 S3 S4
S5 S6 S7 S8
S9 S10 S11 S12 S13
4 3 2 1
C
W2 W1
BL
GY
BK
RD