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 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
POWER/HEATER
CONNECTOR
PL1, PL2
COMPONENT
CODE
TL
F1U, F2U
TR
THERMAL LIMIT
TRANSFORMER
FUSE LINK
FACTORY WIRING
HIGH VOLTAGE
LOW VOLTAGE
FIELD WIRING
HIGH VOLTAGE
LOW VOLTAGE
EQUIPMENT GND
TERMINAL
PLUG CONNECTION
JUNCTION
RESISTOR
PROT. DEVICE
INTEGRATED CONTROL
INTERNAL TO
FIELD GND
OVERCURRENT
BL - BLUE
RD - RED
YL - YELLOW
OR - ORANGE
BK - BLACK
GY - GREY
BR - BROWN
GR - GREEN
C
O
LO
R CO
DES
:
NOTES:
1. PLACE RED WIRES ON 208 V TERMINAL OF
2-TRANSFORMER (TR1/TR2) FOR 208 VAC
OPERATION.
2. MANUFACTURER’S SPECIFIED
REPLACEMENT PARTS MUST BE USED
WHEN SERVICING.
3. IF ANY OF THE ORIGINAL WIRES AS
SUPPLIED WITH THIS UNIT MUST
BE REPLACED, IT MUST BE REPLACED
WITH WIRING MATERIAL HAVING A
TEMPERATURE RATING OF AT LEAST 105C.
USE COPPER CONDUCTORS ONLY.
4. UNIT MUST BE PERMANENTLY
GROUNDED AND CONFORM TO N.E.C AND
LOCAL CODES.
5. TO RECALL THE LAST 6 FAULTS, MOST
RECENT TO LEAST RECENT, DEPRESS
FAULT RECALL BUTTON FOR MORE THAN 2
SECONDS WHILE IN STANDBY (NO THERMOSTAT
INPUTS)
6. RED STATUS LED PROVIDES NETWORK STATUS.
GREEN RX LED INDICATES NETWORK TRAFFIC.
USE LEARN BUTTON TO RESET NETWORK.
7. DISCARD CONNECTOR PL1 WHEN
INSTALLING OPTIONAL HEAT KIT.
8. THE POSITION OF SELECTOR SWITCHES
(DS1 - DS6) INDICATE FACTORY SETTING.
9. REMOVE SHORT RED CIRCUITING WIRE AND
PUT AUX ALARM SWITCH WHEN INSTALLING AUX
ALARM SWITCH.
DS6
X1A
X3A
X15A
BS2
X5A
X2A
BS1
SEG2
SEG1
DS1
DS2
DS3
DS4
DS5
X7A
X12A
X13A
RX LED
X8A
INDOOR UNIT PCB
THERMISTOR
(HEAT EXCHANGER 1,2)
INTEGRATION TYPE
MPU
CPU LED
STATUS LED
FAULT RECALL
PRESSURE SENSOR
EEV COIL
EEV
M
INDOOR
AIR
CIRCULATIOR
BLWR
EARTH
K1R
TB9
K3R
TB6
TB8
K2R
HEATER KIT
OUTPUT
LEARN
PS
F2U
TB5
TB10
TB4
TB3
TB1
TB7
TB2
F1U
RELAY IN
(ACC-OUT)
RELAY OUT
(ACC-IN)
AC24V
TH1
COM
Y2
O
TR1
W2
Y1
C
G
W1
R2 1
8
9
6
7
3
4
5
1
2
DEHUM
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
SELECTOR SWITCHDS1 - DS6
GR
GR
GROUND LUG
TH2
TR2
THERMOSTAT
CONNECTION DISABLED
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
TB4
INSTALLING
AUX ALARM
(ALARM)
(SEE NOTE 9)
RD
~
~
~
~
~
~
24VAC
MOCMOC
208
VAC
230
VAC
208
VAC
230
VAC
TR2
(SEE NOTE 1)
TR1
(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
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