Ariston MSZ 702 NF HB (T) - Relay Function

37
CIRCUIT OPERATION
1) Cut J18 on M-PCB, then temp. is lowe red 1.5 than [Mid OFF point].
2) Cut J18 + J19 on M-PCB, then the temp. is lowered
.
3
4-4.Relay Function
1) Circuit Diagram
2) How it works ;
ON Condition OFF Condition
Control
Control
Method
MICOM
PORT
IC 7 Output
PIN
MICOM
PORT
IC07 Output PIN
IC08 Output PIN IC08 Output PIN
COMP REPLAY
REPLAY
REPLAY
REPLAY
REPLAY
REPLAY
REPLAY
REPLAY
REPLAY
REPLAY
REPLAY
#1 3.7V #10 0.7V #1 0V #10 12V
R-LAMP
#2 3.7V #11 0.7V #2 0V #11 12V
DIS-LAMP
#4 3.7V #13 0.7V #4 0V #13 12V
DISP-SOL
#5 3.7V #14 0.7V #5 0V #14 12V
WATER(ICE)
#6 3.7V
0.7V
#6
#15
0V
12V
WATER(DIS)
#7 3.7V #10 0.7V #7 0V #10 12V
GEAR-M
#8 3.7V #11 0.7V #8 0V #11 12V
D-HTR
#9 3.7V #12 0.7V #9 0V #12 12V
F-LAMP
#10 3.7V #13 0.7V #10 0V #13 12V
CUBE-SOL
#11 3.7V #14 0.7V #11 0V #14 12V
W /S HTR
#12 3.7V #15 0.7V #12 0V #15 12V
C
C
* In case refrigeration of refrigerator compartment is poor or insufficient though comp. and R-fan
operate in normal way ;
#15