Rheem RHMV2421MNACJA Service Manual page 46

8. PC board diagrams
8-1. Models: RHMV2421MNACJA, RHMV3021SNACJA, RHMV3621MNACJA, and RHMV4821SNACJA
UL1015 AWG20
BLACK
UL1015 AWG20 WHITE
UL1015 AWG20
RED
Secondary side AC24V
TRANS, POWER
240V 208V
UL1015 AWG16 NC
BLACK
UL1015 AWG16 ORANGE
UL1015
AWG16
BLACK
1 2 3
FAN MOTOR
UL1015
AWG20
GREEN
L2
L1 3 E
( N )
POWER CABLE
POWER SOURCE
AC208 / 230V
60Hz
Y1 Y2 1
EXTERNAL INPUT
NON-POLARITY 2-WIRED
REMOTE CONTROLLER
8-1. Models: RHMV2421MNACJA, RHMV3021SNACJA, RHMV3621MNACJA, and RHMV4821SNACJA
CN70-1
CN70
CN70-2
B3 ( 8.0 ) B-PSILE-1
LIGHT BLUE
FUSE F200
CN70-3
3.05A - 250V
UL1015 AWG18 RED
W150
UL1015 AWG18 BROWN
W151
FUSE F150
UL1015 AWG18
BROWN
W152 3.05A - 250V
CN67-1
CN67
CN67-2
EX. HEATER OUT 194010-1
CN67-3
WHITE
CN67-4
COM
UL1015
AWG16
ORANGE
UL1015
AWG18
NC NC GREEN
4 5
RED CN650-1
V
CN650
RED / YELLOW CN650-2
Tx
B04P-XL-HDB
ORANGE / WHITE CN650-3 WHITE
Rx
BROWN CN650-4
C
CN650 DC fan motor ( Judgment of fan motor failure or main PCB failure )
Between 1 and 2
Between CN650-1 and CN650-2
Between CN650-3 and CN650-4
EMI FILTER
ZCAT1518-0730
2 TURNS
UL1007 AWG22
RED CN300-1 CN300-1 CN300
UL1007 AWG22
WHITE B03B-XNISK-A-1
CN300-2 CN300-2
WHITE
CN300-3 CN300-3
UL1007 AWG22 CN46
BLUE CN46-1
B3B-XH-AM
CN46-2
UL1007 AWG22 WHITE
ORANGE CN46-3
EMI FILTER
ZCAT1518-0730
2 TURNS
2
CN320-1
CN320
CN320-2
11R-JE
CN320-3
WHITE
CN320-4
CN320-5 DC5V
CN320-6
CN320-7
CN320-8
CN320-9
DC13V-1
CN320-10
CN320-11
DC5V
CN700-1
CN700-2
CN700-3
CN700-4
CN700-5
CN700
CN700-6
B12B-PASK-1
TEST
CN700-7
WHITE
CN700-8
CN700-9
CN700-10
CN700-11
CN700-12
MAI PCB
24 model : K18UD-1900HSE-C1
30 model : K18UD-1901HSE-C1
36 model : K18UD-1902HSE-C1
48 model : K18UD-1903HSE-C1
CN5 and Remote sensor : Thermistor characteristics.
Temperature
32 68 86
( 0 ) ( 20 ) ( 30
Thermistor
33.62 k 12.54 k 8.04 k
Room temperature thermistor
1.15 V 2.22 V 2.77 V
CN6 : Thermistor characteristics.
Temperature
32 68 86
( 0 ) ( 20 ) ( 30
Thermistor
176.03 k 62.91 k 39.57 k
Pipe temperature thermistor (mid.)
1.10 V 2.21 V 2.79 V
AC 230V *Check power supply and wire.
2.0 k
*If these values are detected, the fan motor is defective.
If it is not detected, the main PCB is defective.
5.7 k
- (02-28) -
REMOTE SENSOR ( OPTION )
UTY-XSZX
BLACK
WHITE
DC5V
CN5-1
UL1007 AWG24 BLACK 1 1 BLACK
CN5
CN5-2 UL1007 AWG24 BLACK 2 2
BLACK
3P-SCN
CN5-3
WHITE
) CN6-1
CN6
CN6-2
4P-SCN
CN6-3 UL1007 AWG24
BLACK 1 1 BLACK
WHITE
CN6-4 UL1007 AWG24
BLACK 2 2 BLACK
)
PCB UNIT ( EXPORT / INPORT ) ( OPTION )
DC13V-1
CN65-1 UL1007 AWG26 GRAY
CN65-2 1 1
GRAY
CN65
CN65-3 UL1007 AWG26
RED 2 2 RED
5P-SAN
CN65-4 UL1007 AWG24
ORANGE 3 3 ORANGE
WHITE
CN65-5 UL1007 AWG24 YELLOW 4 4 YELLOW
CN48
B09B-PASK-1
RECEIVER UNIT ( OPTION )
WHITE
UTY-LBTUM
CN48-1 BLACK 1 1 1
BLACK BLACK
CN48-2 2 2 2
WHITE WHITE WHITE
CN48-3
RED 3 RED 3 3 RED
CN48-4
GREEN 4 GREEN 4 4 GREEN
CN48-5 YELLOW 5 YELLOW 5 5 YELLOW
CN48-6 BLUE 6 6 6
BLUE BLUE
CN48-7 7 7 7
GRAY GRAY GRAY
CN48-8
VIOLET 8 VIOLET 8 8 VIOLET
CN48-9
BROWN 9 BROWN 9 9 BROWN
WIRE KIT ( OPTION )
DC13V-1
CN47-1 UL1061 AWG24 WHITE 1 1 WHITE
CN47
CN47-2 UL1061 AWG24 WHITE 2 2
WHITE
3P-SAN
CN47-3
WHITE
ROOM TEMPERATURE THERMISTOR
PIPE TEMPERATURE THERMISTOR ( MIDDLE )
UTY-XCSX
CN8
B04B-PASK-1
WHITE
COMMUNICATION PCB
K14VB-1400HSE-CA0
CN1
1 1 S09B-PASK-2
2 2 WHITE
3 3
INDICATOR PCB
4 4
5 5 K14WT-1500HSE-D0
6 6
7 7
8 8
9 9
UTY-XWZXZG
8. PC board diagrams