Mitsubishi Electronics MUY-D36NA, U1, MUY-D30NA, MUZ-D30NA, MUZ-D36NA User Manual

OUTDOOR UNIT

SERVICE MANUAL

Wireless type Models

MUZ-D30NA MUZ-D30NA-

MUZ-D36NA MUZ-D36NA-

MUY-D30NA MUY-D36NA

HFC

No. OBH502

utilized

R410A

Indoor unit service manual MSZ-D•NA Series (OBH501) MSY-D•NA Series (OBH501)

NOTE:

RoHS compliant products have <G> mark on the spec name plate.

CONTENTS

1. TECHNICAL CHANGES ··································· 3

2. PART NAMES AND FUNCTIONS ····················· 3

3. SPECIFICATION ················································ 4

4. OUTLINES AND DIMENSIONS ························ 6

5. WIRING DIAGRAM ············································ 7

6. REFRIGERANT SYSTEM DIAGRAM ··············· 9

7. DATA ································································· 11

8. ACTUA TOR CONTROL ··································· 18

9. SERVICE FUNCTIONS ··································· 19

10. TROUBLESHOOTING ····································· 20

11. DISASSEMBLY INSTRUCTIONS ···················· 39

PARTS CATALOG (OBB502)

TECHNICAL CHANGES

MUZ-D30NA MUZ-D30NA MUZ-D36NA MUZ-D36NA MUY-D30NA MUY-D36NA

1. New model

PART NAMES AND FUNCTIONS

MUZ-D30NA MUY-D30NA

MUZ-D36NA MUY-D36NA

Air inlet

(back and side)

Piping

Drain hose

Air outlet

Drain outlet

Item Model MSZ-D30NA MSY-D30NA MSZ-D36NA MSY-D36NA

Capacity

Rated(Minimum~Maximum)

Capacity Rated Heating 17

Power consumption

Rated(Minimum~Maximum)

(TOTAL)

Power consumption Rated

EER 1 [SEER] 3 Cooling 8.0 [14.5] 9.1 [16.0]

HSPF IV(V) COP Heating 1 2.84 — 2.69 —

Outdoor unit model MUZ-D30NA MUY-D30NA MUZ-D36NA MUY-D36NA External ﬁ nish Munsell 3Y 7.8/1.1

Power supply V , phase , Hz 208/230 , 1 , 60 Max. fuse size (time delay) A 25 Min. circuit ampacity A 21 Fan motor F.L.A 0.93

Compressor

Refrigerant control Liner expansion valve

Sound level 1

Defrost method Reverse cycle — Reverse cycle —

Dimensions

Weight Ib. 141 126 141 126 Remote controller Wireless type Control voltage (by built-in transformer) 12 - 24 VDC Refrigerant piping Not supplied

Refrigerant pipe size (Min. wall thickness)

Connection method

Between the indoor & outdoor units

Refrigerant charge (R410A) 4 lb. 10 oz. 4 lb. 4 lb. 10 oz. 4 lb. Refrigeration oil (Model) NE022

NOTE : Test conditions are based on ARI 210/240. 1 : Rating conditions (Cooling) — Indoor : 80 ˚FDB, 67 ˚FWB, Outdoor : 95 ˚FDB, (75 ˚FWB) Rated frequency (Heating) — Indoor : 70 ˚FDB, 60 ˚FWB, Outdoor : 47 ˚FDB, 43 ˚FWB Rated frequency 2 : (Heating) — Indoor : 70 ˚FDB, 60 ˚FWB, Outdoor : 17 ˚FDB, 15 ˚FWB Maximum frequency

SPECIFICATION

Cooling 1 Btu/h

Heating 47 1 Btu/h

2 Btu/h 20,800 — 22,800 —

Cooling

Heating 47 1W

Heating 17 2 W 2,620 — 3,000 —

4 Heating (8.2) — (8.2) —

Cooling dB(A) 55 55 56 56 Heating dB(A) 57 — 57 —

W in. 33-1/16 D in. 13 H in. 33-7/16

Liquid in. 3/8 (0.0315) Gas in. 5/8 (0.0394) Indoor Flared Outdoor Flared Height

difference Piping length ft. 100

Model TNB220FMCHT R.L.A 16 L.R.A 20

ft. 50

30,700

(9,800 ~ 30,700)

32,600

(8,700 ~ 34,000)

3,850

(620 ~ 3,850)

3,360

(520 ~ 3,600)

30,700

(9,800 ~ 30,700)

—

3,380

(620 ~ 3,380)

—

32,000/33,200

(9,800 ~ 32,000) /

(9,800 ~ 33,200)

35,200

(8,700 ~ 36,000)

4,140/4,360

(620 ~ 4,140) /

(620 ~ 4,360)

3,840

(520 ~ 4,100)

7.7/7.6 [14.5]

33,200/34,600

(9,800 ~ 33,200) /

(9,800 ~ 34,600)

(620 ~ 4,210) /

(620 ~ 4,240)

—

210/4,240

—

7.9/8.2 [15.1]

Test condition

3, 4

Mode Test

ARI

"A" Cooling Steady State at rated compressor Speed

"B-2" Cooling Steady State at rated compressor Speed

SEER

(Cooling)

HSPF

(Heating)

"B-1" Cooling Steady State at minimum compressor Speed

Low ambient Cooling Steady State at minimum compressor Speed

Intermediate Cooling Steady State at Intermediate compressor Speed

Standard Rating-Heating at rated compressor Speed

Low temperature Heating at rated compressor Speed

Max temperature Heating at minimum compressor Speed

High temperature Heating at minimum compressor Speed

Frost Accumulation at rated compressor Speed

Frost Accumulation at Intermediate compressor Speed

5 : At Intermediate compressor Speed

=("Cooling rated compressor speed" - "minimum compressor speed") / 3 + "minimum compressor speed".

Indoor air condition Outdoor air condition

Dry bulb (°F) Wet bulb (°F) Dry bulb (°F) Wet bulb (°F)

80 67 95 (75)

80 67 82 (65)

80 67 67 (53.5)

80 67 87 (69)

70 60 47 43

70 60 17 15

70 60 62 56.5

70 60 47 43

70 60 35 33

OPERATING RANGE

(1) POWER SUPPLY

Outdoor unit

(2) OPERATION

Mode Condition

Standard temperature 80 67 95 —

Cooling

Heating

Maximum temperature 90 73 115 — Minimum temperature 67 57 14 — Maximum humidity 78 % — Standard temperature 70 60 47 43 Maximum temperature 80 67 75 65 Minimum temperature 70 60 14 13

Rated voltage Guaranteed Voltage

208/230 V

1 phase

60 Hz

Min.187 V

DB WB DB WB

208 V 230 V Max.253 V

Intake air temperature (°F)

Indoor Outdoor

OUTLINES AND DIMENSIONS

MUZ-D30NA MUZ-D36NA MUY-D30NA MUY-D36NA

REQUIRED SPACE

4 i

n. or more

Open as a rule 20 inch or more if the back, both sides and top are open

Unit: inch

Open as a rule 20 inch or more if the front and both sides are open

4 inch or more / 8 inch or more if there are obstacles to both sides

14 in. or more

MUZ-D30NA MUZ-D36NA

WIRING DIAGRAM

MUY-D30NA MUY-D36NA

REFRIGERANT SYSTEM DIAGRAM

MUZ-D30NA MUZ-D36NA

Refrigerant pipe (with heat insulator)

Refrigerant pipe 3/8 (with heat insulator)

5/8

Flared connection

4-way valve

Stop valve (with service port)

Receiver

Stop valve

Oil separator

Service port

Strainer

#100

Capillary tube

LEV

O.D. 0.142 I.D. 0.094

1-31/32

3.6 2.4 50

(

Strainer

#100

High-pressure Switch

Discharge temperature thermistor RT62

Compressor

Strainer

#100

)

Capillary tube

O.D. 0.071 x I.D. 0.024 x 39-3/8 ( 1.8 x 0.6 x 1,000)

Service port

Defrost thermistor RT61

Refrigerant flow in cooling Refrigerant flow in heating

Outdoor heat exchanger

Outdoor heat exchanger temperature thermistor RT68

R.V. coil heating ON cooling OFF

Ambient temperature thermistor RT65

Unit:inch

MUY-D30NA MUY-D36NA

Refrigerant pipe 5/8 (with heat insulator)

Flared connection

Oil separator

Capillary tube

O.D. 0.071 x I.D. 0.024 x 39-3/8 ( 1.8 x 0.6 x 1,000)

Stop valve (with service port)

Service port

Strainer

#100

Compressor

LEV

Service port

High-pressure Switch

Discharge temperature thermistor RT62

Strainer

#100

Outdoor heat exchanger

Outdoor heat exchanger temperature thermistor RT68

Ambient temperature thermistor RT65

Unit:inch

Refrigerant pipe 3/8 (with heat insulator)

Stop valve

Capillary tube

O.D. 0.142 x I.D. 0.094 x 1-31/32 ( 3.6 x 2.4 x 50)

Refrigerant flow in cooling

MAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFFERENCE

Refrigerant piping : ft. Piping size O.D : in.

Model

Max. Length

Max. Height difference

Gas Liquid

MUZ-D30NA MUZ-D36NA MUY-D30NA

100 50 5/8 3/8

MUY-D36NA

Indoor unit

Max. Height

difference

Max. length A

Outdoor unit

ADDITIONAL REFRIGERANT CHARGE (R410A:oz.)

Refrigerant piping exceeding 25 ft. requires additional refrigerant charge according to the calculation.

Model

Outdoor unit

precharged

25 30 40 50 60 70 80 90 100

Refrigerant piping length (one way) : ft.

MUZ-D30NA MUZ-D36NA

4 lb. 10 oz. 0 2.96 8.88 14.80 20.72 26.64 32.56 38.48 44.40

Calculation : X oz. = 2.96/5 oz. / ft. x (Refrigerant piping length (ft.) - 25)

Model

MUY-D30NA MUY-D36NA

Outdoor unit

precharged

25 30 40 50 60 70 80 90 100

4 lb. 0 1.08 3.24 5.40 7.56 9.72 11.88 14.04 16.20

Refrigerant piping length (one way) : ft.

Calculation : X oz. = 1.08/5 oz. / ft. x (Refrigerant piping length (ft.) - 25)

NOTE : Refrigerant piping exceeding 25 ft. requires additional refrigerant charge according to the calculation.

DATA7

MUZ-D30NA MUZ-D36NA MUY-D30NA MUY-D36NA

7-1. PERFORMANCE DATA

1) COOLING CAPACITY

Indoor air Outdoor intake air DB temperature (˚F)

Model

MUZ-D30NA

MUZ-D36NA

MUY-D30NA

MUY-D36NA

(208 V)

MUY-D36NA

(230 V)

NOTE : 1. IWB : Intake air wet-bulb temperature

TC : Total Capacity (x10 SHC : Sensible Heat Capacity (x10 TPC : Total Power Consumption (kW)

2. SHC is based on 80 ˚F of indoor Intake air DB temperature.

IWB 75 85 95 105 115

(˚F) TC SHC TPC TC SHC TPC TC SHC TPC TC SHC TPC TC SHC TPC

71 37.6 19.1 3.43 35.2 17.8 3.75 33.0 16.7 4.04 30.7 15.6 4.25 28.2 14.3 4.43 67 35.6 22.8 3.23 33.2 21.2 3.56 30.7 19.6 3.85 28.6 18.3 4.08 26.2 16.8 4.27 63 33.5 25.9 3.08 31.0 24.0 3.41 28.9 22.3 3.68 26.2 20.3 3.93 23.9 18.5 4.08 71 40.7 19.8 3.88 38.0 18.5 4.25 35.7 17.4 4.58 33.2 16.2 4.82 30.5 14.9 5.01 67 38.5 23.9 3.66 35.9 22.2 4.03 33.2 20.6 4.36 30.9 19.1 4.62 28.4 17.6 4.84 63 36.2 27.3 3.49 33.5 25.3 3.86 31.2 23.5 4.16 28.4 21.4 4.45 25.9 19.5 4.62 71 37.6 19.1 3.01 35.2 17.8 3.30 33.0 16.7 3.55 30.7 15.6 3.73 28.2 14.3 3.89 67 35.6 22.8 2.84 33.2 21.2 3.13 30.7 19.6 3.38 28.6 18.3 3.58 26.2 16.8 3.75 63 33.5 25.9 2.70 31.0 24.0 2.99 28.9 22.3 3.23 26.2 20.3 3.45 23.9 18.5 3.58 71 40.7 19.8 3.75 38.0 18.5 4.10 35.7 17.4 4.42 33.2 16.2 4.65 30.5 14.9 4.84 67 38.5 23.9 3.54 35.9 22.2 3.89 33.2 20.6 4.21 30.9 19.1 4.46 28.4 17.6 4.67 63 36.2 27.3 3.37 33.5 25.3 3.73 31.2 23.5 4.02 28.4 21.4 4.29 25.9 19.5 4.46 71 42.4 20.6 3.77 39.6 19.3 4.13 37.2 18.1 4.45 34.6 16.8 4.69 31.8 15.5 4.88 67 40.1 24.9 3.56 37.4 23.2 3.92 34.6 21.5 4.24 32.2 20.0 4.49 29.6 18.3 4.71 63 37.7 28.4 3.39 34.9 26.3 3.75 32.5 24.5 4.05 29.6 22.3 4.32 27.0 20.3 4.49

Btu/h)

2) COOLING CAPACITY CORRECTIONS

Refrigerant piping length (one way : ft.)

25 (std.) 40 65 100

MUZ-D30NA MUZ-D36NA MUY-D30NA MUY-D36NA

1.0 0.95 0.878 0.713

3) HEATING CAPACITY

Indoor air Outdoor intake air WB temperature (˚F)

Model

MUZ-D30NA

MUZ-D36NA

IDB 15 25 35 43 45 55 (˚F) TC TPC TC TPC TC TPC TC TPC TC TPC TC TPC

75 18.9 2.50 23.6 2.94 28.2 3.28 31.8 3.44 32.8 3.49 37.2 3.63 70 20.0 2.42 24.5 2.87 28.9 3.19 32.6 3.36 33.6 3.43 38.0 3.56 65 20.5 2.32 25.6 2.77 29.8 3.11 33.6 3.28 34.6 3.33 38.8 3.49 75 20.4 2.86 25.5 3.36 30.4 3.74 34.3 3.94 35.4 3.99 40.1 4.15 70 21.6 2.76 26.4 3.28 31.2 3.65 35.2 3.84 36.3 3.92 41.0 4.07 65 22.2 2.65 27.6 3.17 32.2 3.55 36.3 3.74 37.3 3.80 41.9 3.99

NOTE : 1. IDB : Intake air dry-bulb temperature

TC : Total Capacity (x103 Btu/h) TPC : Total Power Consumption (kW)

2. Above data is for heating operation without any frost.

How to operate with fixed operational frequency of the compressor.

1. Press the EMERGENCY OPERATION switch on the front of the indoor unit, and select either EMERGENCY COOL mode or EMERGENCY HEAT mode before starting to operate the air conditioner.

2. The compressor starts with operational frequency.

3. The fan speed of the indoor unit is High.

4. This operation continues for 30 minutes.

5. In order to release this operation, press the EMERGENCY OPERATION switch twice or once, or press any button on the remote controller.

7-2. PERFORMANCE CURVE Cooling

MUZ-D30NA

SHF at rating condition = 0.64

40 38 36 34

Indoor intake air WB temperature (°F)

Btu/h)

Total capacity

(10

26 24

4.5

4.3

4.1

3.9

3.7

(kW)

Indoor intake air WB temperat

3.5

3.3

3.1

Total power consumption

65 75 85 95 105 115

Outdoor intake air DB temperature (°F)

Airflow

MUY-D36NA

SHF at rating condition = 0.62

Ind

Btu/h)

Total capacity

(10

(kW)

Total power consumption

oor intake air WB temperature (°F)

5.0

4.6

4.2

oor intake air WB te

Ind

3.8

3.4

65 75 85 95 105 115

Outdoor intake air DB temperature (°F)

Airflow

mpe

= 763 CFM

ure (°F

= 763 CFM

rature (°F)

MUZ-D36NA

SHF at rating condition = 0.62

43 41 39 37

Indoor intake air WB temperature (°F)

Btu/h)

71 67 63

)

71 67 63

Total capacity

(10

29 27

5.2

4.8

4.4

(kW)

Indoor intake air WB temperat

4.0

3.6

Total power consumption

65 75 85 95 105 115

Outdoor intake air DB temperature (°F)

Airflow

= 763 CFM

ure (°F)

71 67 63

MUY-D30NA

SHF at rating condition = 0.64

40 38 36 34

Indoor intake air WB temperature (°F)

Btu/h)

Total capacity

(10

26 24

4.0

3.8

3.6

3.4

3.2

(kW)

Indoor intake air WB temperature (°F)

3.0

2.8

2.6

Total power consumption

65 75 85 95 105 115

Outdoor intake air DB temperature (°F)

Airflow

= 763 CFM

71 67 63

Heating

MUZ-D30NA

= 848 CFM

Btu/h)

Total capacity

(10

4.0

3.6

3.2

(kW)

2.8

2.4

Total power consumption

15 25 35 45 55

This value of frequency is not the same as the actual frequency in operating. Refer to 7-5 and 7-6 for the relationships between frequency and capacity.

Airflow

Indoor intake air DB temperature (°F)

Indoor intake air DB temperature (°F

Outdoor intake air WB temperature (°F)

65 70 75

)

75 70 65

MUZ-D36NA

= 848 CFM

Btu/h)

Total capacity

(10

4.5

4.1

3.7

(kW)

3.3

2.9

Total power consumption

15 25 35 45 55

Airflow

oor intake air DB temperature (°F)

Ind

Indoor intake air DB temperature (°F)

Outdoor intake air WB temperature (°F)

1212

65 70 75

75 70 65

7-3. CONDENSING PRESSURE Cooling

Data is based on the condition of indoor humidity 50 %. Air flow should be set to High speed.

MUZ-D30NA

(PSIG)

580

540

500

460

420

380

Condensing pressure

340

300

260

68 70 75 80 85 90 95 100 105(°F)

Indoor DB temperature (°F)

Outdoor ambient temperature

86 80 75 70

MUZ-D36NA

(PSIG)

580

540

500

460

420

380

Condensing pressure

340

300

260

68 70 75 80 85 90 95 100 105(°F)

Indoor DB temperature (°F)

Outdoor ambient temperature

86 80 75 70

MUY-D30NA

(PSIG)

150

140

130

120

110

Suction pressure

100

68 70 75 80 85 90 95 100 105(°F)

(PSIG)

150

140

130

120

110

Suction pressure

100

68 70 75 80 85 90 95 100 105(°F)

Indoor DB temperature (°F

Outdoor ambient temperature

Indoor DB temperature (°F)

Outdoor ambient temperature

)

(PSIG)

580

540

500

460

420

380

Condensing pressure

340

300

260

68 70 75 80 85 90 95 100 105(°F)

Indoor DB temperat

Outdoor ambient temperature

ure (°F)

86 80 75 70

(PSIG)

150

140

130

120

110

Suction pressure

100

68 70 75 80 85 90 95 100 105(°F)

Indoor DB temperature (°F)

Outdoor ambient temperature

1313

MUY-D36NA

(PSIG)

580

540

500

460

Indoor DB temperature (°F)

80 75 70

420

380

Condensing pressure

340

300

260

68 70 75 80 85 90 95 100 105(°F)

Outdoor ambient temperature

Heating

Data is based on the condition of outdoor humidity 75 %. Air flow should be set to High speed. Data is for heating operation without any frost.

MUZ-D30NA

(PSIG)

150

140

130

Indoor DB temperature (°F)

120

110

Suction pressure

100

68 70 75 80 85 90 95 100 105(°F)

Outdoor ambient temperature

(PSIG)

500

480

460

440

420

400

380

360

340

320

300

Condensing pressure

280

260

240

220

200

14 20 25 30 35 40 45 50 55 60 65 70(°F)

MUZ-D36NA

(PSIG)

500

480

460

440

420

400

380

360

340

320

300

Condensing pressure

280

260

240

220

200

14 20 25 30 35 40 45 50 55 60 65 70(°F)

°F)

ure(

perat

oor DB tem

Ind

Outdoor ambient temperature

°F)

Indoor DB temperature(

Outdoor ambient temperature

58Hz

(PSIG)

150

140

130

120

110

100

Suction pressure

14 20 25 30 35 40 45 50 55

(PSIG)

150

140

130

120

110

100

Suction pressure

14 20 25 30 35 40 45 50 55

Indoor DB temperature (°F)

Outdoor ambient temperature

Indoor DB temperature (°F)

Outdoor ambient temperature

58Hz

60 65 70(°F)

58Hz

60 65 70(°F)

75 70 65

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