5-4.Water Heat Exchange Control Board - Toshiba HWT-602S21SM3W-E(TR) Service Manual

5-4. Water heat exchange control board
HWT-602S21***W-E, HWT-1102S21***W-E,
MCC-1753 (main)
Connector for
Low pressure sensor
MCC-1755 (CN02)
CN607
CN707
Earth lead wire
P100
PWM signal
for built-in
circulation
pump
CN200
Earth lead
wire
P01
Serial input
CN01
Connector for
MCC-1755 (CN08)
CN711
THO sensor
CN602
Connector for TC sensor
MCC-1755 (CN03) CN601
CN603
SW701
Connector for
MCC-1755 (CN06)
CN303
TWO sensor
CN600
Backup heater thermostat
CN611
Connector for
MCC-1755 (CN03)
CN605
SW705
SW702 SW704
SW703 SW706
Connector for
MCC-1755 (CN09)
CN304
44
Water flow sensor
CN609
Connector for
TWI sensor
MCC-1755 (CN04)
CN604
CN700 - 703
SW707 Connector for
main bus communication
SW708
CN902
Connector for
MCC-1755 (CN10)
CN305
7 segment
display
Rotary
SW700
Remote
controller
CN903