32
TEST POINT DIAGRAM AND VOLTAGE
MXZ-24UV
-
Electronic control P.C.board
E1
Gas pipe temperature thermistor
Evaporation temperature thermistor
Defrost temperature thermistor
Resistance (k
'
)
Resistance (k
'
)
Temperature(
;
)
Temperature(
;
)
{
Fin temperature thermistor
1.0~4.0V DC
Evaporation temperature thermistor
2.5~4.0V DC
Discharge 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 C
Room B
{
High pressure switch
Liner expansion valve(LEV)
12V DC pulse wave
Outdoor fan Me 12V DC
R.V. coil
12V DC
Outdoor fan Lo 12V DC
Outdoor fan ON 12V DC
{
Serial signal Room A
5~10V DC
{
Serial signal Room B
5~10V DC
{
Serial signal Room C 5~10V DC
{
Relay 12V DC
Temperature(
;
)
Discharge temperature thermistor
Resistance (k
'
)
OB287--2.qxp 10/9/01 3:32 PM Page 32
