Mitsubishi Electronics U1, MUZ-D36NA, MUY-D36NA, MUZ-D30NA, MUY-D30NA Blk Wht Wht Red, Ylw Brn

Part name

Check method and criterion

Figure

Defrost thermistor

(RT61) (MUZ)

Ambient temperature

Measure the resistance with a tester.

thermistor (RT65)

Refer to 10-6. “Test point diagram and voltage”, 1. “Outdoor electron-

Outdoor heat ex-

ic control P.C. board”, the chart of thermistor.

changer temperature

thermistor (RT68)

Discharge tem-

Measure the resistance with a tester. Before measurement, hold the

perature thermistor

thermistor with your hands to warm it up.

(RT62)

Fin temperature

Refer to 10-6. “Test point diagram and voltage”, 1. “Outdoor electron-

ic control P.C. board”, the chart of thermistor.

thermistor (RT64)

Measure the resistance between terminals using a tester.

W RED

(Winding temperature : 14 ~ 104 °F (-10 ~ 40 °C))

Compressor

Normal

1.24

~ 1.53 Ω

V

U

WHT

BLK

Measure the resistance between lead wires using a tester.

(Part temperature : 14 ~ 104 °F (-10 ~ 40 °C))

RED U (W)

Outdoor fan motor

Color of lead wire

Normal

WHT

RED – BLK

V (V)

13 ~ 16 Ω

BLK W (U)

BLK – WHT

WHT – RED

Measure the resistance using a tester.

(Part temperature : 14 ~ 104 °F (-10 ~ 40 °C))

R. V. coil (MUZ)

Normal

1.20

~ 1.55 kΩ

Measure the resistance using a tester.

(Part temperature : 14 ~ 104 °F (-10 ~ 40 °C))

WHT

RED

LEV

Linear expansion

Color of lead wire

Normal

WHT – RED

ORN

valve

RED – ORN

38 ~ 50 Ω

YLW – BRN

YLW BRN BLU

BRN – BLU