Mitsubishi Electric EHSD-YM9C - Page 71

71
CN3C
Transmission
(Indoor/Outdoor)
(0–24 V DC)
LED3
Transmission
(Indoor/Outdoor)
CNP1/OUT1 (TBO.1 1-2)
Water circulation pump1
(230 V AC)
F2
6.3 A/250 V
CN01
Power supply
(230 V AC)
F1
10 A/250 V
CNPWM
Water circulation
pump 1
(2-3: 5 V DC)
OUT12 (TBO.3 5-6)
Signal output (Defrost) (230 V AC)
OUT8 (TBO.4 5-6)
Signal output (Cooling)
(230 V AC)
CNIH/OUT9 (TBO.4 3-4)
Signal output for immersion
heater
(230 V AC)
CNBHT
Thermostat input for
booster heater
IN7
(TBI.1 1-2)
Flow switch 3 input
CN22/RC(TBI.2 1-2)
Main remote controller
(10.4–13.7 V DC)
CNRF
Transmission (Indoor/
Wireless receiver)
(1-2: 11.5–13.2 V DC)
LED1
Power supply (FTC)
CN108
SD card
LED4
Reading or writing
data to SD card
LED2
Power supply (Main
remote controller)
THW9 (TBI.2 9-10)
Thermistor
(Zone2 return water temp.)
THW7
(TBI.2 5-6)
Thermistor
(Zone1 return
water temp. )
THW6 (TBI.2 3-4)
Thermistor
(Zone1 flow water temp.)
THWB1
(TBI.2 11-12)
Thermistor
(Boiler flow
water temp.)
THW8 (TBI.2 7-8)
Thermistor
(Zone2 flow water temp. )
IN6
(TBI.1 3-4)
Room thermostat 2
input
IN5
(TBI.1 5-6)
Outdoor ther
-
mostat input
IN4
(TBI.1 7-8)
Demand
control input
IN3
(TBI.1 9-10)
Flow switch
2 input
IN1
(TBI.1 13-14)
Room thermo
-
stat input
CNBC
Signal output for booster heater
(230 V AC)
OUT11 (TBO.3 3-4)
Signal output (Error) (230 V AC)
OUT5 (TBO.2 1-3)
Mixing valve (Local supply)
(1-2[Close]: 230 V AC)
(2-3[Open]: 230 V AC)
CNP4/OUT14
Water circulation pump4
(230 V AC)
OUT3 (TBO.1 5-6)
Water circulation pump3
(Local supply) (230 V AC)
OUT2 (TBO.1 3-4)
Water circulation pump2
(Local supply) (230 V AC)
CNBH
Signal output for booster heater
(1-3: heater1 230 V AC)
(5-7: heater2 230 V AC)
OUT13 (TBO.4 1-2)
2-way valve2 (230 V AC)
10-7. Test point diagram
FTC (Controller board)
OUT4 (TBO.2 4-6)
3-way valve/2-way valve
(Local supply)
(4-5: 230 V AC)
OUT10 (TBO.3 1-2)
Signal output (Boiler)
(non-voltage contact)
OUT15 (TBO.3 7-8)
Signal output (Comp on)
(230 V AC)
IN2
(TBI.1 11-12)
Flow switch 1
input
IN8
(TBI.3 1-2)
Power meter 1
input
CN20
Thermistor
(Room temp.)
CN21
Thermistor
(Ref. liquid temp.)
CNW12
Thermistor
(1-2: Flow water temp.)
(3-4: Return water temp.)
THWB2
(TBI.2 13-14)
Thermistor
(Boiler return
water temp. )
IN9
(TBI.3 3-4)
Power meter
2 input
CN1A
Flow sensor
input
CNW5 Thermistor
(DHW tank water temp.)
IN10
(TBI.3 5-6)
Heat meter
input
CN105
Transmission (Indoor/
WiFi adaptor)
(1-2: 11.5–13.2 V DC)
IN11 (TBI.3 7-8)
Smart grid
ready 1 input
IN12
(TBI.3 9-10)
Smart grid
ready 2 input
OCH571D