Mitsubishi MXZ-5A100VA- Manuals

Mitsubishi MXZ-5A100VA– User Manual in PDF format online.

Manuals:

User Manual

User Manual Mitsubishi MXZ-5A100VA

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Summary

Page 2 - TECHNICAL CHANGES

2 TECHNICAL CHANGES 1 MXZ-4A80VA - E2 MXZ-4B80VA - E1 1. Indoor units combinations have been added (15/20 class).2. Electronic control P.C. board has been changed.3. Noise filter P.C. board has been changed.4. Power board has been changed.5. LEV coil has been changed. MXZ-5A100VA - E1 MXZ-5B100VA - ...

Page 4 - PART NAMES AND FUNCTIONS; ACCESSORIES; Air inlet

4 PART NAMES AND FUNCTIONS 2 ACCESSORIES Drain socketDrain cap (MXZ-3B/4B/5B) 12 MXZ-4B80VAMXZ-5B100VA Air outlet Drain outlet Air inlet (Back and side) Air outlet Drain outlet Air inlet (Back and side) MXZ-3B54VAMXZ-3B68VAMXZ-4B71VA MXZ-2B30VAMXZ-2B40VAMXZ-2B52VA Air inlet Air outlet Drain outlet P...

Page 5 - SPECIFICATION; COOLING INDOOR

5 SPECIFICATION 3 Outdoor model Indoor units number Piping total lengthConnecting pipe lengthHeight difference (Indoor ~ Outdoor)Height difference (Indoor ~ Indoor)FunctionCapacity [Rated (Min.-Max.) Hz]DehumidificationOutdoor air flowBreaker capacityRunning currentPower input Power factorStarting c...

Page 8 - Fan

8 COOLING INDOOR Dry-bulb temperature 27.0°C Wet-bulb temperature 19.0°C OUTDOOR Dry-bulb temperature 35.0°C Wet-bulb temperature 24.0°C HEATING INDOOR Dry-bulb temperature 20.0°C OUTDOOR Dry-bulb temperature 7.0°C Wet-bulb temperature 6.0°C 1 Measured under rated operating frequency.2 Electrical da...

Page 13 - NOISE CRITERIA CURVES

13 NOISE CRITERIA CURVES 4 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATETHRESHOLD OFHEARING FORCONTINUOUSNOISE NC-60 NC-50 NC-40 NC-30 NC-20 NC-70 OCT A VE BAND SOUND PRESSURE LEVEL, 0dB = 0.0002 MICRO BAR BAND CENTER FREQUENCIES, Hz Cooling High FUNCTION FAN SPEED Heatin...

Page 14 - OUTDOOR UNIT

14 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATETHRESHOLD OFHEARING FORCONTINUOUSNOISE NC-60 NC-50 NC-40 NC-30 NC-20 NC-70 OCT A VE BAND SOUND PRESSURE LEVEL, 0dB = 0.0002 MICRO BAR BAND CENTER FREQUENCIES, Hz Cooling High FUNCTION FAN SPEED Heating High 46 SPL(dB (A) ) 4...

Page 15 - OUTLINES AND DIMENSIONS; REQUIRED SPACE

15 OUTLINES AND DIMENSIONS 5 MXZ-2B30VAMXZ-2B40VAMXZ-2B52VA 51 51 170.4 44 400 304 325 344.5 17.5 40 22.3 550 280 10 800 500 150 302.5 13 23 285 51 251.1 69 handle Air out 2-10x21 Oval hole Drainage hole 42 Liquid pipe : 6.35(flared)1/4Gas pipe : 9.52(flared)3/8Liquid pipe : 6.35(flared)1/4Gas pipe ...

Page 19 - WIRING DIAGRAM

19 WIRING DIAGRAM 6 MXZ-2B30VA MXZ-2B40VA MXZ-2B52VA TB3 TB2 TB1

Page 25 - REFRIGERANT SYSTEM DIAGRAM; Outdoor unit; ADDITIONAL REFRIGERANT CHARGE

25 REFRIGERANT SYSTEM DIAGRAM 7 a b Outdoor unit Indoor units 10m 10m 10m Refrigerant piping length (one way, 2 unit total) Max. Height difference Outdoor unit precharged (g) 20m 0 1,150 Stop valve (with strainer #100) LEV A LEV B Compressor Defrost thermistor RT61 Muffler 4-way valve Indoor unit B ...

Page 26 - MAX REFRIGERANT PIPING LENGTH

26 Refrigerant pipe diameter is different according to indoor unit to be connected. When using extension pipes, refer to the tables below. UNIT: mm (inch) Piping length each indoor unit (a, b) 20m Total piping length (a+b) 30m Bending point for each unit 20 Total bending point 30 UNIT: mm MXZ-2B40VA...

Page 32 - PERFORMANCE CURVES; INDOOR UNIT; BACK VIEW

32 PERFORMANCE CURVES 8 The standard specifications apply only to the operation of the air conditioner under normal conditions.Since operating conditions vary according to the areas where these units are installed, the following information has been pro-vided to clarify the operating characteristics...

Page 49 - HOW TO OPERATE FIXED-FREQUENCY OPERATION (Test run operation); Both indoor and outdoor unit are under the

49 1. Press EMERGENCY OPERATION switch to COOL or HEAT mode (COOL : Press once, HEAT : Press twice).2. Test run operation starts and continues to operate for 30 minutes.3. Compressor operates at rated frequency.4. Indoor fan operates at High speed.5. After 30 minutes, test run operation finishes and...

Page 59 - ACTUATOR CONTROL; Relation between main sensor and actuator

59 ACTUATOR CONTROL 9 Relation between main sensor and actuator Discharge temperature thermistor Indoor coil thermistor Defrost thermistorFin temperature thermistor Ambient temperature thermistor Outdoor heat exchanger temperature Capacity code Purpose Protection Defrosting Protection Defrosting Pro...

Page 60 - SERVICE FUNCTIONS; 0-2. LOWERING THE OPERATING NOISE OF THE OUTDOOR UNIT; JK; This is to generate heat at the winding.

60 SERVICE FUNCTIONS 10 10-1. LOCKING THE OPERATION MODE OF THE AIR CONDITIONER (COOL, DRY, HEAT) 10-2. LOWERING THE OPERATING NOISE OF THE OUTDOOR UNIT Description of the function:With this function, you can lower the operating noise of the outdoor unit when the operation load is small,for example,...

Page 63 - Compressor operational frequency and fan speed can be increased.; [How to change defrost finish temperature and heat operation time]; Turn ON the power supply for the air conditioner.

63 10-5. INCREASING MAXIMUM COMPRESSOR OPERATIONAL FREQUENCY AND FAN SPEED OF THE OUTDOOR UNIT <MXZ-4B80VA, MXZ-5B100VA> 10-6. CHANGING DEFROST FINISH TEMPERATURE AND HEAT OPERATION TIME <MXZ-4B80VA, MXZ-5B100VA> Compressor operational frequency and fan speed can be increased. Capacity o...

Page 64 - TROUBLESHOOTING; Troubleshooting procedure; ponents for bursting and discoloration.; Lead wiring; There are 2 types in failure mode recall function as shown below.

64 TROUBLESHOOTING 11 3. Troubleshooting procedure 1) First, check if the OPERATION INDICATOR lamp on the indoor unit is flashing on and off to indicate an abnormality. To make sure, check how many times the abnormality indication is flashing on and off before starting service work. 2) If the electr...

Page 66 - NOTE

66 11-time flash 15-time flash • Replace the power board. • Replace the power board. A short or open circuit is detected in the current sensorduring compressor operating. The bus-bar voltage exceeds 430 V or falls to 50 V or below duringcompressor operating. Current sensor Bus-bar voltage LEV for dr...

Page 74 - Check of power supply; Outdoor unit does not operate.; Turn ON the power supply.

74 Check of power supply Outdoor unit does not operate. Turn ON the power supply. No Yes Yes No Yes No Yes No Replace the power board. Check the main power supply circuit for proper connections. Is there voltage of 230V AC in the power supply terminal block? Is the output voltage from the noisefilte...

Page 77 - Check of LEV; Yes

77 Check of LEV No Yes No Yes Turn ON the power supply to the outdoor unit after checking LEV coil is mounted to the LEV body securely. Is "click - click" sound heard?Or, do you feel vibration of LEV coil with your hand? Disconnect the connectors.CN791: LEV A, CN792: LEV B, CN793: LEV C,CN79...

Page 78 - How to check inverter/compressor; minutes after turning ON the power supply, start

78 How to check inverter/compressor • When heating, room does not get warm.• When cooling, room does not get cool. No No Yes Yes Yes No Yes No Yes Disconnect the terminal of the compressor. 3 minutes after turning ON the power supply, start EMERGENCY OPERATION. Is output balanced? Clarify the causes...

Page 79 - Check of outdoor thermistors; • When thermistor is abnormal.

79 Check of outdoor thermistors • When thermistor is abnormal. Disconnect the connector in the following table and measure the resistance of the thermistor to check whether the thermistor is normal or not. (Refer to 11-7.) Does the unit operate 10 minutes or more without showing thermistor abnormali...

Page 80 - Check of HPS; • When the operation frequency does not go up from lowest frequency.; Check of outdoor fan motor

80 Check of HPS Infinity 0 Ω Yes No 1. Disconnect the connector CN681.2. Check the resistance of HPS 1 minute after the outdoor unit power supply was turned OFF. Check the resistance between each terminal. Reconnect CN681.Turn ON the power supply to the indoor and outdoor unit.3 minutes later, start...

Page 81 - The other cases; to the outdoor unit first decides the operation mode.; Check of bus-bar voltage

81 The other cases Indoor unit does not operate. (different operating models in multi system) • When you try to run two indoor units simultaneously, one for cooling and the other for heating, the unit which transmits signal to the outdoor unit first decides the operation mode. • When the above situa...

Page 82 - To fan motor

82 11-7. TEST POINT DIAGRAM AND VOLTAGE 1. Inverter P.C. board MXZ-2B30VA MXZ-2B40VA MXZ-2B52VA Back side of unit -20 -10 0 10 20 30 40 0 10 20 30 40 50 60 70 80 90 100 Defrost thermistor (RT61)Ambient temperature thermistor (RT65)Outdoor heat exchangertemperature thermistor (RT68) Discharge tempera...

Page 86 - Outdoor Power board; Connect to the earth; Back side of unit; GND

86 MXZ-3B54VA MXZ-3B68VA MXZ-4B71VA MXZ-4B80VA MXZ-5B100VA 5. Outdoor Power board 325-370V DCOutput (Red) (White) Connect to the compressorVoltage among phases: 5V to 180V Connect to the earth CN5Primary current detection(Connect to the noise filter) CN2Connect to the controller board(+)1-5(–): Sign...

Page 88 - DISASSEMBLY INSTRUCTIONS; (1) Slide the sleeve and check if there is a locking lever or not.; OPERATING PROCEDURE; Photo 1; Service

88 DISASSEMBLY INSTRUCTIONS 12 (1) Slide the sleeve and check if there is a locking lever or not. (2) The terminal with this connector has the locking mechanism. Slide the sleeve. Pull the terminal while pushing the locking lever. Hold the sleeve, and pull out the terminal slowly. The terminal which...

Page 90 - Photo 5

90 OPERATING PROCEDURE PHOTOS Photo 5 Defrostthermistor 5. Removing outdoor fan motor (1) Remove the top panel, cabinet and service panel (Refer to 1).(2) Disconnect the power supply and indoor/outdoor connecting wire. (3) Disconnect the connectors for outdoor fan motor.(4) Remove the propeller nut....

Page 91 - : Turn OFF power supply before disassembling.; Removing the compressor; Recover gas from the pipes until the pressure gauge; Photo 2; Screws of the cabinet

91 12-2. MXZ-3B54VA MXZ-3B68VA MXZ-4B71VA NOTE : Turn OFF power supply before disassembling. OPERATING PROCEDURE PHOTOS 1. Removing the compressor (1) Remove the screws of the top panel, and remove the top panel. (2) Remove the screws of the service panel, and remove the service panel. (3) Recover g...

Page 92 - . Removing the fan motor

92 OPERATING PROCEDURE PHOTOS 3 . Removing the fan motor (1) Remove the top panel, the service panel, and the cabinet (Photo 1, 2).(2) Disconnect the connector CN931 and CN932 on the outdoor electronic control P.C. board.(3) Remove the propeller.(4) Remove the fan motor. Photo 6 Screws of the outdoo...

Page 93 - Removing the reactor; Removing the expansion valve; way valve; Photo 7; LEV coils

93 OPERATING PROCEDURE PHOTOS 6. Removing the reactor (1) Remove the top panel (Photo 1).(2) Remove the service panel, cabinet, back panel, and the electrical parts (Photo 1, 2, 3, 4).(3) Disconnect the reactor lead wire from the terminal of the reactor.(4) Remove the screws of the reactor, and remo...

Page 95 - Photo 4

95 OPERATING PROCEDURE PHOTOS Photo 4 Suction pipe welded part Discharge pipe weld-ed part Compressor nuts (3 places) Photo 3 Screws of the electrical parts 2. Removing the fan motor (1) Remove the top panel, the service panel, and the front panel (Photo 1).(2) Disconnect the connector CN931 and CN9...

OPERATING PROCEDURE PHOTOS 4. Removing the expansion valve (1) Remove the top panel (Photo 1,2).(2) Remove the service panel (Photo 1). (Gas recovery is not required if the unit is pumped down.)(3) Remove the font panel for removing LEV F (Photo 1).(4) Remove the electrical parts for removing LEV F ...

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