94
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.
ALS AUXILIARY LIMIT SW ITCH
BC BLOWER CONTACTOR
BM BLOWER MOTOR
BR BLOWER RELAY
CAP CAPACITOR
CB CIRCUIT BREAKER
CC COMPRESSOR CONTACTOR
CCH CRANKCASE HEATER
CCP COMPRESSOR/COIL PROTECTION
CHR CRANKCASE HEATER RELAY
CHS CRANKCASE HEATER SWITCH
CM CONDENSER MOTOR
COMP COMPRESSOR
CS COMPESSOR SOLENOID
ECON ECONOMIZER
ES EMERGENCY SHUTDOWN
FB FUSE BLOCK
FPS FREEZE PROTECTION SWITCH
FS FLAME SENSOR
GND EQUIPMENT GROUND
GV GAS VALVE
HPS HIGH PRESSURE SWITCH
HV HIGH VOLTAGE
IGN IGNITOR
LPS LOW PRESSURE SWITCH
LR LEAK DETECTION RELAY
MAT MIXED AIR TEMPERATURE SENSOR
PB POWER DISTIBUTION BLOCK
PLF FEMALE PLUG/CONNECTOR
VPT
THE STATUS LIGHT ON THE FURNACE CONTROL MAY BE USED AS A GUIDE TO
TROUBLESHOOTING THIS APPLIANCE. STATUS LIGHT CODES ARE AS
FOLLOWS:
LED ACTIVITY
RED
AMBER GREEN
BOOT - UP
ON
ON
ON
STEADY ON
CONTROL FAULT
DETECTED
OEM TEST MODE
STANDBY NORMAL
OPERATION
NO THERMOSTAT
REQUESTS
RAPID FLASH
- FIELD TEST MODE
CLEAR ERROR
HISTORY
1 FLASH
IGNITION RETRIES
EXCEEDED
LOW FLAME
SENSE
CALL FOR
HEATING
2 FLASHES
PRESSURE SENSOR
NULL ERROR:
INCONSISTENT
READING WITH
INDUCER OFF
ID PLUG FAILURE
CALL FOR
COOLING
3 FLASHES
PRESSURE SENSOR
SPAN ERROR:
INCONSISTENT
READING WITH
INDUCER ON, OR
INDUCER FAILS TO
REACH TARGET
PRESSURE
CONTROL FUSE
OPEN
CONTINUOUS FAN
OPERATION
4 FLASHES
HIGH LIMIT SWITCH
OPEN
-
-
5 FLASHES
FLAME PRESENT
WITH GAS VALVE OFF
- -
6 FLASHES
NORMALLY CLOSED
BURNER
SWITCH/AUXILLARY
SWITCH OPEN
- -
7 FLASHES
GAS VALVE CIRCUIT
SHORTED
- -
10 FLASHES
HIGH LIMIT SWITCH
RECOVERY TIMER
EXPIRED
- -
OFF NO LED
ACTIVITY
NO 24VAC POWER
TO CONTROL
NO 24VAC POWER
TO CONTROL
NO 24VAC POWER
TO CONTROL
IGN
MODULE
1
2
B
A
OR
OR
IGN
1
2
3
4
5
6
1
2
3
4
5
6
LPS
BL
BK
BL
HPS
YL/PK
BK
YL
CCP
PLF
CCP
PLM
YL/PK
BL/PK
BK
YL
BL/PK
FPS
BK
2
3
4
5
RD
REPLACEMENT WIRE MUST BE SAME
SIZE AND TYPE OF INSULATION AS
ORIGINAL (AT LEAST 105° C). USE
COPPER CONDUCTORS ONLY. USE
N.E.C. CLASS 2 WIRE FOR ALL LOW
VOLTAGE FIELD CONNECTIONS.
REFERENCE DAIKIN ACCESSORY
WIRING DIAGRAM BOOKLET
AND/OR INSTALLATION MANUAL
FOR WIRING OF OPTIONAL
EQUIPMENT.
TR PRIMARY (HIGH VOLTAGE)
CONNECTIONS: ORANGE WIRE
CONNECTED TO 240V TAP AT THE
FACTORY AND BLACK WIRE TO COM
TERMINAL. FOR 208V SUPPLY
POWER, MOVE ORANGE WIRE FROM
240V TAP TO THE 208V TAP.
G (GREEN) BLOWER SPEED IS
FACTORY WIRED TO T1. Y1
(YELLOW) AND Y2 (PURPLE)
BLOWER SPEEDS ARE FACTORY
WIRED TO T1 AND T3
RESPECTIVELY. W (BROWN)
BLOWER SPEEDS IS FACTORY
WIRED TO T2. IF DIFFERENT
SPEEDS ARE NEEDED, SEE IO
MANUAL FOR FURTHER DETAIL ON
BLOWER SPEED TAPS.
IF REFRIGERANT LEAK DETECTION
PCB IS INSTALLED, REMOVE
ES-PLM PLUG (WITH PINK WIRE)
AND CONNECT IT TO RDS-PLF1.
THEN, CONNECT RDS-PLM2 TO
ES-PLF. REMOVE BM-PLM3 AND
CONNECT LR-PLM TO BM-PLF3.
3A
FAN
COOL FAN
HEAT FAN
ULN
J
8
PSS
PSG
PS VCC
PLI
NC BTS
NC BTS
PLO
GV RETURN
TR 24 VAC
TR GND
GV OUTPUT
12
11
10
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
12
11
10
FLAME ROD (T7)
1
2
3
3
2
1
IDC (20 VDC)
I (PWM) C
I (RPM) F
J5
G
R
W
Y
C
5
4
3
2
1
5
43
2
1
L2
L2
L1
GND
J3
5
4
3
2
1
4
2
1
4
2
1
3
3
THERMOSTAT++
TON
t = 180s
R1
R2
Y1
Y2
BC
A1 A2
PK
BL
CC
A1 A2
YL
BL
CHS
RD
BLRD
PK
CHR
10
PK
BL
FS
2
CCH
BK
RD
BK
BK
CHR
CHR
POWER AND CONTROLS WIRING DIAGRAM
DHG036-048, ULN, 3 PHASE DIRECT DRIVE,
HIGH STATIC
2
1
2
1
0140L07485-A
NOTES
CO
M
PONENT LEG
END
W2
Y1
O
Y2
S2
R W1
C
S1
G
DH
T1
T2
T3
T4
T5
BA
C
D
BL
RD
GY
GR
YL
PU
WH
BR
BK
L1
BC
L2
T2
T1
L3 T3
L1
L2
L3
4
3
2
1
4
3
2
1
9
8
7
6
5
4
3
2
1
FB1
F1
F1
F1
J4-1
J4-2
J4-3
2
VM
GR
M
1~
J4-3
J4-3
J4-3
1
2
3
4
5
1
2
3
4
5
HIGH VOLTAGE
LOW VOLTAGE
OPTIONAL HIGH VOLTAGE
OPTIONAL LOW VOLTAGE
CHASSIS GROUND
FI
ELD W
I
R
I
NG
FA
CTOR
Y
WIR
I
NG
HIGH VOLTAGE
LOW VOLTAGE
EARTH GROUND
WIRE COD
E
BK
BLACK
BL
BLUE
BL/PK
BLUE WITH PINK STRIPE
BR
BROWN
GR GREEN
GY GRAY
OR
ORANGE
PK
PINK
PU
PURPLE
RD
RED
TN
TAN
WH
WHITE
YL
YELLOW
YL/PK
YELLOW WITH PINK STRIPE
9
8
7
6
5
4
3
2
1
BL
FB2F2F2F2
2
2
1
2
3
4
1
2
3
4
5
2
SMK
PLM
SMK
PLF
ES
PLM
ES
PLF
5
5
BM
PLM3
BM
PLF3
1
2
1
2
1
2
3
4
1
2
3
4
THERM
OST
AT F
I
ELD W
IRI
NG++
1
S
T
A
GE
CO
O
L
ING/HEA
TING
2
S
T
A
GE
COOL
I
NG
/HE
A
TING
TB1
W1
W2
G
R
Y1
Y2
C
O
WH
GR
PK
YL
BL
OR
STAT
W
G
R
Y
C
O
TB1
W1
W2
G
R
Y1
Y2
C
O
WH
GR
PK
YL
BL
OR
STAT
W1
G
R
Y1
C
O
PU Y2
BR W2
J5 PLM
TB1
GR
TB1
YL
WH PU PU
WH
TNYL
TB2
PK
BL
PK
RD
BL
YL
BL
GR
BLBK
YL
BR
J8
PLM
RD
PLS
RS
ALS
BR
PU
PU
TN
J4
PLM
GR
YL
WH
PK
GR
DSI
J3
PLM
YL
HV1
HV2
BK
RDGR
RD
WH
PU
PU
RD
RD
RD
YL
BL
BL
PK
BL
BR
PLF
PLM
VPT
RD
BR
BK
PK
TR
CB
GR
BK
GR
RD
GR
BK
YL
YL
BL
BL
RD
RD
1.
CC
L1
L2
T3
COMP
L3
T1
T2
RD
BK
L3
L1
CAP
CM
GR
BR
BK
PU
BR
PU
BK
RD
OR
BK
RD
YL
L2
BK
PU
BK
PLF
PLM
BK
GR
PU
M
1~
M
3~
CM
GR
2
4
6
8
RDBK
BK
OR
J4
GR
GR
BM
PLF2
PLM2
BK
RD
OR
M
3~
GR
PLF2
BM
BM
PLM1
OR
OR
BK
RD
OR
BR
YL
OR
BK
OR
VM
PLF
VM
PLM
OR
YL
BR
BK
WH WH
BK
OR
YL
BR
BM
PLF1
PU
YL
GR
WH
GY
BL
RD
BK
OR
BR
RD
RD
PK
BL
WH
PK
RD
PK
BL
PK
PK
GR
WH
BL
TN
BR
TN
BR
GND
PB
L1
L2
L3
LINE
VOLTAGE
208-230V/3PH/60Hz
GV
A1 A2
BR YL
BR
10
WH
BL
4
PU
78
BR
PU
ECON
PLF
12
11
10
9
8
7
6
5
4
3
2
1
12
11
10
9
8
7
6
5
4
3
2
1
ECON
PLM
PU
YL
2
1
BK
PU
YL
BL
GR
WH
PK
BR
GY
MAT
PLF
BK
2
YL
A
LLOW
A
BLE
SPE
ED T
A
PS
T1
T2
T3
T4
T5 T1' T2'
T3' T4'
T5'
FAN (GR)
X*
-
-
-
-
X
-
-
-
-
COOLING STG1 (YL)
X*
X
X
X
X
-
-
-
-
-
COOLING STG2 (PU)
-
X
X*
X
X
-
- -
-
-
HEATING(BR)
-
-
-
-
- X
X*
X
X
X
X* DENOTES DEFAULT FACTORY WIRING.
PLM MALE PLUG/CONNECTOR
PLS PRIMARY LIMIT SWITCH
RDS REFRIGERANT DETECTION SYSTEM
RS ROLLOUT SWITCH
SMK SMOKE DETECTOR
TB TERMINAL BLOCK
TON ON-DELAY TIMER RELAY
TR TRANSFORMER
ULN ULTRA LOW NOX CONTROL BOARD
VM VENT MOTOR
VPT VENT PRESSURE TRANSDUCER
3
2
WH
WH
2
PK
2
YL
CS
V1 V2
YL
BL
YL
43
BR
YL
BL
PU
PU
REFRIGERANT DETECTION SYSTEM
TROUBLESHOOTING GUIDE
RED STATUS
LIGHT
EQUIPMENT
STATUS
CHECK
1 FLASH
STARTUP MODE
-
SLOW LED
FLASHING
NORMAL
OPERATION
-
FAST LED
FLASHING
R-32 LEAK
ALARM
LEAK DETECTED.
FIND AND REPAIR
THE SOURCE OF
THE LEAK.
LED ON
CONTINUOUSLY
DELAY MODE
MODE WILL
CLEAR AFTER 5
MINUTES.
FAST LED
FLASHING
SYSTEM
VERIFICATION
MODE
USER ACTIVATED
TEST MODE.
2 FLASHES
INTERNAL FAULT
REPLACE
CONTROL BOARD
3 FLASHES
R-32 SENSOR
COMMUNICATION
FAULT
VERIFY
REFRIGERANT
SENSOR WIRING.
REPLACE
SENSOR.
REPLACE
CONTROL
BOARD.
4 FLASHES
R-32 SENSOR
FAULT
REPLACE
SENSOR
1
C
RDS
PLM1
RDS
EEV_IN
EEV_OUT
CTM_OUT
R_OUT
C
C
R
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
5V 2
PORT
SENSOR
NOT USED
ALARM
RDS
PLF1
1
2
3
4
LR
13
BK
BL
BL
BL
RD
RDS
PLM2
1
2
3
4
PK
PK
RD
BL
PK
PK
RD
BL
RD
TN
54
2
LR
BK
1
2
TN
BR
LR
PLM
WIRING DIAGRAM
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