146
TEST POINT DIAGRAM AND VOLTAGE
MXZ-32RV
-
Electronic control P.C.board
E1
Fin temperature thermistor
Gas pipe temperature thermistor
Evaporation temperature thermistor
Suction temperature thermistor
Defrost temperature thermistor
Resistance (
'
)
Resistance (
'
)
Temperature(
;
)
Temperature(
;
)
{
Fin temperature thermistor
1.0~4.0V DC
Discharge temperature thermistor
2.5~4.0V DC
Evaporation temperature thermistor
2.5~4.0V DC
Suction temperature thermistor
0.3~0.6V DC
Defrost temperature thermistor
2.5~4.0V DC
12V DC
{
5V DC
0~5V DC
+
-
-
-
-
-
-
-
-
LED monitor indication
Gas pipe temperature
thermistor 2.5~4.0V DC
Room A
Room D
Room C
Room B
{
{
High pressure switch
Low pressure switch
{
Compressor inner thermo-
Liner expansion valve(LEV)
12V DC pulse wave
Solenoid valve
12V DC
Outdoor fan Me 12V DC
Reversing
valve 12V DC
Outdoor fan Lo 12V DC
Crank case heater 12V DC
Outdoor fan ON 12V DC
{
Serial signal Room A 5~10V DC
{
Serial signal Room B 5~10V DC
{
Serial signal Room D 5~10V DC
{
Serial signal Room C 5~10V DC
{
Relay 12V DC
Temperature(
;
)
Discharge temperature thermistor
Resistance (
'
)