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Muz-gb50va – MITSUBISHI ELECTRIC MUZ-GB50VA User Manual

Page 31

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31

1. Outdoor electronic control P.C. board

MUZ-GB50VA

LED 1

LED 2

CN801

325V DC

~

370V DC

Input

(

(

CN932

20-90V AC

GND

5V

5V DC

pulse wave

(

To
f

a

n

motor

Defrost thermistor (R

T61)

Discharge temperature thermistor (R

T62)

Outdoor heat exchanger

temperature thermistor (R

T68)

(

(

(+)

(–)

(+)

Rush current relay

(–)

R.V

. coil (–)

(

12V

DC

15V

15V

(+)

(–)

CN931

(

CN661

CN701

Signal transmission

(T

o power board)

5V DC pulse wave

(+)

(–)

(

GND

CN702

Signal reception

(From power board)

5V DC pulse wave

GND (power board)

CN781

CN795

12V DC

pulse wave

LEV

(

(

(

(

-20

-10

0

10

20

30

40

100

90

80

70

60

50

40

30

20

10

0

0

10

20

30

40

50

60

70

80

200

180

160

140

120

100

80

60

40

20

0

Resistance (k

"

)

Resistance (k

"

)

Temperature (

°

C)

Temperature (

°

C)

Defrost thermistor (RT61)
Ambient temperature thermistor (RT65)
Outdoor heat exchanger temperature thermistor (RT68)

Fin temperature thermistor (RT64)

0

10

20

30

40

50

60

70

80

90

100 110 120

700

600

500

400

300

200

100

0

Resistance (k

'

)

Temperature (

;

)

Discharge temperature thermistor (RT62)

F801

FUSE

3.15A/250V

(

Ambient temperature

thermistor (R

T65)

CN663

Serial signal
Room A

5~10V DC

CN601

230V AC
Input

(

(

10-7. Test point diagram and voltage

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