Mitsubishi Electric Mr.SLIM PUHZ-RP1.6VHA Service Technical Manual Download Page 16

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4-2. Refrigerant System Diagram

Pipe temperature
thermistor/liquid
(TH2)

Distributor
with strainer
#50

Condenser/evaporator
temperature thermistor
(TH5)

Room temperature
thermistor (TH1)

Refrigerant flow in cooling

Refrigerant flow in heating

Strainer
#50

Heat exchanger

Refrigerant GAS pipe connection
(Flare)

Refrigerant LIQUID pipe connection
(Flare)

PLA-RP1.6AA

PLA-RP2AA

PLA-RP2.5AA

PLA-RP1.6AA.UK PLA-RP2AA.UK

PLA-RP2.5AA.UK

PLA-RP3AA

PLA-RP4AA

PLA-RP5AA

PLA-RP6AA

PLA-RP3AA.UK

PLA-RP4AA.UK

PLA-RP5AA.UK

PLA-RP6AA.UK

PLA-RP3AA

PLA-RP4AA

PLA-RP5AA

PLA-RP6AA

PLA-RP3AA

.UK

PLA-RP4AA

.UK

PLA-RP5AA

.UK PLA-RP6AA

.UK

PKA-RP1.6GAL

PKA-RP2GAL

PKA-RP2.5FAL

PKA-RP3FAL

PKA-RP4FAL

PCA-RP2GA

PCA-RP2.5GA

PCA-RP3GA

PCA-RP4GA

PCA-RP5GA

PCA-RP6GA

PEA-RP3EA.TH-A

PEA-RP4EA.TH-A

PEA-RP5EA.TH-A

PEA-RP6EA.TH-A

PEAD-RP1.6EA.UK PEAD-RP2EA.UK PEAD-RP2.5EA.UK
PEAD-RP3EA.UK PEAD-RP4EA.UK

PEAD-RP5EA.UK

PEAD-RP6EA.UK

PEAD-RP3EA

.UK PEAD-RP4EA

.UK PEAD-RP5EA

.UK PEAD-RP6EA

.UK

PEAD-RP2.5GA.UK PEAD-RP3GA.UK PEAD-RP4GA.UK

OCT04A-1.qxp 04.9.29 9:14 AM Page 16

Summary of Contents for Mr.SLIM PUHZ-RP1.6VHA

Page 1: ...OINT DIAGRAM 118 14 TROUBLESHOOTING 127 15 SYSTEM CONTROL 131 Indoor unit Model names Service Ref R410A PLA RP AA PLA RP AA PLA RP AA1 PLA RP AA UK PLA RP AA1 UK PKA RP GAL PKA RP GAL PKA RP FAL PKA RP FAL PCA RP GA PCA RP GA PEA RP EA PEA RP EA TH A PEAD RP EA PEAD RP EA UK PEAD RP EA1 UK PEAD RP GA PEAD RP GA UK Outdoor unit Model names Service Ref No OCT04 REVISED EDITION A SPLIT TYPE HEAT PUMP...

Page 2: ...RP FAL OC305 PCA RP GA OC311 Indoor unit Service Manual No Service Ref 4 5 Heat pump without electric heater VHA VHA VHA1 VHA VHA1 VHA VHA1 6 3 2 2 5 VHA VHA VHA 1 6 Heat pump type Outdoor unit PUHZ RP PEA RP EA TH A PLA RP AA PLA RP AA1 OC293 REVISED EDITION B OC299 REVISED EDITION A PKA RP FAL PCA RP GA OC311 OC301 REVISED EDITION A Indoor unit Service Manual No Service Ref 4 5 Heat pump without...

Page 3: ...Max including all indoor indoor connection is 80m 3 10m wire is attached in the remote controller accessory 4 The figures are NOT always against the ground S3 terminal has DC24V against S2 terminal However between S3 and S1 these terminals are NOT electrically insulated by the transformer or other device Notes 1 Wiring size must comply with the applicable local and national code 2 Power supply cor...

Page 4: ...spots on the shield wire noise may enter into the shield wire because the ground wire and shield wire form one circuit and the electric potential difference occurs due to the impedance difference among ground ing spots In case of single spot grounding noise does not enter into the shield wire because the ground wire and shield wire do not form one circuit To avoid communication errors caused by no...

Page 5: ...t addresses are 00 1 23 4 5 6 7 8 9 0 1 23 4 5 6 7 8 9 0 1 23 4 5 6 7 8 9 0 1 23 4 5 6 7 8 9 0 1 23 4 5 6 7 8 9 0 1 23 4 5 6 7 8 9 0 1 2 50 M NET Address No Setting example Switng setting SW11 ones digit SW12 tens digit OFF ON 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3...

Page 6: ... 1 2 1 LED1 LED2 LED3 ZNR DP 3 FC 5 3 1 1 1 2 ON OFF J21 J22 J23 J24 C MF I B 3 2 1 P B F1 TB4 S1 S2 S3 PLA RP1 6 2 2 5AA PLA RP3 4 5 6AA PLA RP3 4 5 6AA1 1 J11J12J13J14 2 J15 3 4 5 ON OFF SW2 PLA RP5AA1 PLA RP6AA PLA RP6AA1 MODELS Manufacture Service board J22 J21 J24 J23 OFF ON OFF ON 4 3 2 1 4 3 2 1 J21J22J23J24 PLA RP5AA PLA RP1 6AA PLA RP2AA PLA RP2 5AA 10 5 9 8 4 7 6 3 2 1 1 2 3 CONNECTOR PR...

Page 7: ...21 Manufacture OFF 1 ON 4 3 2 Service board MODELS 1 6GAL SW1 Manufacture Service board J15 J14 J13 J12 J11 OFF ON 5 4 3 2 1 BUZZER BZ RU RECEIVING UNIT WIRELESS REMOTE CONTROLLER BOARD W B REMOTE CONTROLLER BOARD OPTION R B CN2 TB6 CONNECTOR PROGRAM TIMER TRANSMISSION LINE TERMINAL BLOCK REMOTE CONTROLLER Please set the voltage using the remote controller For the setting method please refer to th...

Page 8: ...UZZER BZ RU RECEIVING UNIT WIRELESS REMOTE CONTROLLER BOARD W B REMOTE CONTROLLER BOARD OPTION R B CN2 TB6 CONNECTOR SCHEDULE TIMER TRANSMISSION LINE TERMINAL BLOCK REMOTE CONTROLLER TRANSMISSION INDOOR OUTDOOR LED3 VANE MOTOR MV POWER SUPPLY R B POWER SUPPLY I B LED2 LED1 SWITCH COOLING ON OFF SW2 SW1 LED2 LED1 LED RUN INDICATOR SWITCH HEATING ON OFF LED HOT ADJUST CONDENSER EVAPORATOR TEMPERATUR...

Page 9: ...ce upward TRANSMISSION INDOOR OUTDOOR LED3 VANE MOTOR MV POWER SUPPLY R B POWER SUPPLY I B LED2 LED1 SWITCH COOLING ON OFF SW2 SW1 LED2 RU BZ W B LED RUN INDICATOR SWITCH HEATING ON OFF LED HOT ADJUST BUZZER RECEIVING UNIT WIRELESS REMOTE CONTROLLER BOARD OPTION TERMINAL BLOCK REMOTE CONTROLLER TRANSMISSION LINE CONNECTOR SCHEDULE TIMER REMOTE CONTROLLER BOARD TB6 CN2 COND EVA TEMP THERMISTOR 0 15...

Page 10: ...2 J24 J23 J22 P B ZNR X4 X5 X6 X5 X6 1 3 5 7 RED C ORN MF 1 Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing 2 Indoor and outdoor connecting wires are made with polarities make wiring matching terminal numbers S1 S2 S3 3 Symbols used in wiring diagram above are Connector Terminal block FAN WHT 1 When pressing the CHECK switch twice o...

Page 11: ...11 PEAD RP1 6EA UK PEAD RP2EA UK PEAD RP2 5EA UK PEAD RP3EA UK PEAD RP4EA UK PEAD RP5EA UK PEAD RP6EA UK PEAD RP3EA1 UK PEAD RP4EA1 UK PEAD RP5EA1 UK PEAD RP6EA1 UK ...

Page 12: ...12 PEAD RP2 5GA PEAD RP3GA PEAD RP4GA ...

Page 13: ...VHA PUHZ RP2VHA PUHZ RP2 5VHA PUHZ RP3VHA PUHZ RP3VHA A MODELS SW6 W1 MODEL SELECT 1 6V 2V MODELS SW6 2 5V 3V 1 ON OFF 2 3 4 5 6 1 ON OFF 2 3 4 5 6 1 ON OFF 2 3 4 5 6 1 ON OFF 2 3 4 5 6 W1 W2 W2 Only PUHZ RP2 5 3VHA ...

Page 14: ... PUHZ RP5VHA1 PUHZ RP6VHA1 PUHZ RP4VHA A PUHZ RP5VHA A PUHZ RP6VHA A PUHZ RP4VHA1 A PUHZ RP5VHA1 A PUHZ RP6VHA1 A W1 MODELS SW6 W1 MODEL SELECT 4V 5V 6V 1 ON OFF 2 3 4 5 6 1 ON OFF 2 3 4 5 6 1 ON OFF 2 3 4 5 6 Only PUHZ RP4VHA1 PUHZ RP5VHA1 PUHZ RP6VHA1 ...

Page 15: ... F G H Notes The operation statuses vary depending on the compressor s operating frequency because units are inverter type Outdoor heat exchanger Stop valve with service port Power receiver Linear expansion valve B Linear expansion valve A 4 way valve Compressor Ball valve Indoor heat exchanger A B C D Overload operation Standard operation Permissible operation range Normal operation range 0 0 2 0...

Page 16: ...PLA RP2AA UK PLA RP2 5AA UK PLA RP3AA PLA RP4AA PLA RP5AA PLA RP6AA PLA RP3AA UK PLA RP4AA UK PLA RP5AA UK PLA RP6AA UK PLA RP3AA1 PLA RP4AA1 PLA RP5AA1 PLA RP6AA1 PLA RP3AA1 UK PLA RP4AA1 UK PLA RP5AA1 UK PLA RP6AA1 UK PKA RP1 6GAL PKA RP2GAL PKA RP2 5FAL PKA RP3FAL PKA RP4FAL PCA RP2GA PCA RP2 5GA PCA RP3GA PCA RP4GA PCA RP5GA PCA RP6GA PEA RP3EA TH A PEA RP4EA TH A PEA RP5EA TH A PEA RP6EA TH A...

Page 17: ... Bypass valve Oil separator Thermistor TH4 Discharge Muffler Strainer 50 4 way valve Compressor Ball valve Capillary tube O D 4 0OI D 2 4OL500 Capillary tube O D 2 5OI D 0 6OL1000 PUHZ RP1 6VHA PUHZ RP2VHA Thermistor TH7 Outdoor Heat exchanger Refrigerant GAS pipe connection 1 2F Refrigerant LIQUID pipe connection 1 4F Stop valve Strainer 100 Power receiver Linear expansion valve B Thermistor TH6 ...

Page 18: ... O2pcs Strainer 100 Strainer 100 Low pressure switch 63L Muffler Ball valve Restrictor valve Solenoid valve Bypass valve PUHZ RP4VHA1 PUHZ RP4VHA1 A PUHZ RP5VHA1 PUHZ RP5VHA1 A PUHZ RP6VHA1 PUHZ RP6VHA1 A Distributor Thermistor TH7 Outdoor Heat exchanger Refrigerant GAS pipe connection 5 8F Refrigerant LIQUID pipe connection 3 8F Stop valve with service port Strainer 100 Power receiver Linear expa...

Page 19: ...UHZ RP4 6V RP4 6V1 Outdoor unit PUHZ RP1 6 2V PUHZ RP2 5 3V PUHZ RP4 6V PUHZ RP4 6V1 Number of bends Height difference 50m or less 50m or less 75m or less Permitted pipe length 50m or less 50m or less 75m or less 75m or less 2 1 3 1 5 1 4 6 11 20m 21 30m 2 3 3 3 5 3 4 8 2 5 3 5 5 5 5 0 31 40m 2 7 0 2 4 1 0 6 6 1 0 6 5 6 0 6 2 9 0 4 4 7 1 2 6 7 1 2 6 2 1 2 7 3 1 8 6 8 1 8 7 9 2 4 7 4 2 4 41 50m 51 ...

Page 20: ...tio Corrected pipe length c Capacity correction Cooling and heating capacity is lowered according to pipe length Capacity can be obtained by referring to the capacity curves below When the diameter of gas pipe is one size smaller than standard diameter cooling capacity is lowered com paring to the standard diameter The lowered capacity can be obtained by referring to capacity curves for gas pipe w...

Page 21: ...eating RP2 5 RP3 Cooling RP3 Cooling RP2 5 4 4 When gas pipe is one size larger than standard size for PUHZ RP4 5 and 6 1 Capacity can be obtained by referring to capacity curves of standard size 3 3 Capacity curve for PUHZ RP2 5 3 models When gas pipe is one size smaller than standard size ...

Page 22: ... 5 2 RP6 Twin RP3 2 Table 5 Table 6 Table 7 Note 1 If total piping length exceeds charge less piping length of 30 m charge additional refrigerant according to the table 7 Note 2 Bends number w 2 should be within 8 for each combination A B A C and A D and 15 in all Note 3 Height difference between indoor and outdoor unit is referred to no matter which unit is located higher or lower w Charge additi...

Page 23: ...f RP 3 twin Check the additional refrigerant to be charged referring to table 2 when using pipe of size referred in table 8 ii In case of RP4 6 twin or RP6 triple When using liquid pipe one size larger than standard diameter for main pipe A calculate the amount of additional refrigerant referring to 2 below 1 When using piping of standard diameter or gas pipe one size larger than standard diameter...

Page 24: ...nce the power supply was intercepted Surrounding temperature 0 60 5 1 INDOOR UNIT Common parts 0 10 20 30 40 50 20 10 0 10 20 30 40 50 Thermistor for lower temperature Temperature Resistance k Thermistor Characteristic graph Room temperature thermistor TH1 Pipe temperature thermistor TH2 Condenser evaporator temperature thermistor TH5 Thermistor R0 15kΩ 3 Fixed number of B 3480K 2 Rt 15exp 3480 0 ...

Page 25: ... UK PLA RP6AA1 UK PKA RP2 5FAL PKA RP3FAL PKA RP4FAL 1 1 2 2 3 3 Red White Black Relay connector Protector OPEN 125i 5 CLOSE 79i 15 4 5 2 3 6 1 Orange Red Pink Yellow Brown Blue M Parts name Check points Measure the resistance between the terminals using a tester Winding temperature 20 Fan motor MF Abnormal Open or short Red Black White Black Motor terminal or Relay connector RP1 6 RP2 120 5 111 3...

Page 26: ... RP3 45 0 44 8 RP4 43 7 55 3 RP5 RP6 20 4 20 7 Normal Open or short Abnormal Brown Yellow Brown Blue Red Orange Red Pink Connector RP2 186 214 RP2 5 RP3 140 160 Normal Open or short Abnormal Brown Yellow Brown Blue Red Orange Red Pink Connector RP4 RP5 RP6 140 160 Normal Vane motor PEA RP3EA TH A PEA RP4EA TH A PEA RP5EA TH A PEA RP6EA TH A Parts name Check points Measure the resistance between th...

Page 27: ...d open Gray Red White or Red open Motor terminal or Relay connector Normal PEAD RP4EA 1 UK RP5EA 1 UK RP6EA 1 UK 24 76 4 78 18 99 36 63 10 27 2 11 20 75 25 44 Abnormal Open or short Gray Black White or Red open Black Blue White or Red open Blue Red White or Red open Motor terminal or Relay connector Normal PEAD RP1 6 2 2 5EA UK PEAD RP3EA 1 UK 43 5 14 74 57 5 PEAD RP1 6EA UK PEAD RP2EA UK PEAD RP2...

Page 28: ...Brown Yellow 2 3 Brown Blue Abnormal 46 4 Measure the resistance between the terminals using a tester Surrounding temperature 20 Solenoid valve coil Four way valve 21S4 Pin number of relay connector is different from that motor connector Motor for compressor MC Linear expansion valve LEV A LEV B Normal Abnormal Open or short RP1 6 3V RP4 6V Open or short Measure the resistance between the terminal...

Page 29: ...A U V U W W V Unit Compressor model Winding Resistance ANV33FDAMT at 20 C 0 266 0 266 0 266 SNB130FLBH 0 300 0 340 0 300 0 340 0 300 0 340 PUHZ RP4 5 6VHA PUHZ RP1 6 2VHA TNB220FMBH 0 865 0 895 0 865 0 895 0 865 0 895 PUHZ RP2 5 3VHA ...

Page 30: ...Thermistor R50 17k 2 B constant 4150K 3 Rt 17exp 4150 273 t 323 1 1 Thermistor R120 7 465k 2 B constant 4057K 2 Rt 7 465exp 4057 273 t 393 1 1 Medium temperature thermistor Thermistor Heat sink TH8 20 250k 30 160k 40 104k 50 70k 60 48k 70 34k 80 24k 90 17 5k 100 13 0k 110 9 8k High temperature thermistor Thermistor Discharge TH4 0 10 20 30 40 50 20 10 0 10 20 30 40 50 Temperature Resistance k 200 ...

Page 31: ...cked more noise can be heard than normal situation No noise is heard when the pulse number moves from B to A in case coil is burn out or motor is locked by open phase Noise can be detected by placing the ear against the screw dri ver handle while putting the screw driver to the linear expansion valve LEV M 1 6 4 4 3 2 1 2 1 Red Brown Blue Orange Yellow White 3 4 5 6 Connector LEV A LEV B DC12V Out...

Page 32: ...mly Otherwise pipes can bend due to pressure How to attach the coil Hold the lower part of the main body shown as A firmly so that the main body does not move and attach the coil by inserting it downward into the main body Then securely attach the coil stop per to pipe B At this time be careful that stress is not added to lead wire and main body is not wound by lead wire If the stop per is not fir...

Page 33: ...supply L N Remote control main sub setting necessity In case of 2 remote controllers No setting initial setting Refrigerant address setting SW1 3 6 Various setting Remote controller Main Sub Indoor unit Outdoor unit Remarks Group control 1 4 2 3 Main 00 Outdoor unit 00 Refrigerant address SW1 3 6 Indoor unit 00 w Indoor unit number auto setting Refrigerant address receiving from the outdoor unit O...

Page 34: ...to 16 indoor units by grouping them 1 One group can connect up to two remote controllers 1 Remote controller considers multiplex units as a single group One outdoor unit can connect up to three indoor units The cables applicable 0 3mm2 to 1 25mm2 Use either flat type cable 3 cores 1 6mm or more or wires in the table below 2 The diameter of the cables depends on each unit Others The wirings as foll...

Page 35: ... 1 signal 111000 d Expanded waveform 2 50Hz carrier 5V div 10msec div 5V div 2µsec div During normal operation the remote controller interactively exchanges signals with the indoor unit of refrigerant address 0 When the remote controller cannot receive signals from the indoor unit of refrigerant address 0 for 3 minutes it is considered as abnormal E0 is displayed on the remote controller as an err...

Page 36: ...r units 10V div 500msec div 10V div 500msec div c Expanded waveform 10V div 50msec div During normal operation outdoor unit interactively exchanges signals with all the connected indoor units When outdoor unit cannot receive signals for three minutes from an indoor unit due to any trouble like cable disconnection it is considered as abnormal and the outdoor unit stops E8 is displayed on the remote...

Page 37: ...ata can not be received from the outdoor unit E6 is displayed on the remote controller after 6 minutes B When replacing the p c board only the unit number which has had it s p c board replaced is reset Even if the power supply is reset the unit number which has not had it s replaced does not change C Automatic set unit is possible to confirm by blinking the frequency of LED3 in the indoor controll...

Page 38: ...C motor PEAD RP GA 2 Tap changing AC motor PEA RP EA 2 Tap changing AC motor Note The parts marked are optional Number of fan speed Drive method Provided Swing function Shutter mechanism Motor type Provided Motor type 4 Phase control AC motor Stepping 12V DC Item Ceiling suspended Fan Up down auto vane Left right swing louver Drain pump Function specification 4 Phase control AC motor Stepping 12V ...

Page 39: ...emp TH2 or Condenser Evaporator temperature TH5 continues 15 or less for three minutes again by the time 16 minutes have passed the frozen protection operates P6 Detected condition 2 In case the indoor unit continues to be under the anti freezing control for 9 minutes or more the unit will be in a state of the suspensive abnormality Restart the compressor after releasing the anti freezing control ...

Page 40: ...1 Initial setting Start at COOL mode and horizontal vane 2 Vane position Horizontal Downward A Downward B Downward C Swing 3 Restriction of the downward vane setting When setting the downward vane A B and C in Medium2 or Low of the fan speed notch the vane changes to horizontal position after 1 hour have passed 4 Vane up down vane change 3 Drain pump Remarks 1 Drain sensor Indoor controller board ...

Page 41: ... change Remote controller setting 1 Model which is installed louver function Control modes Control details None always stopped Set by remote controller 3 Drain pump 1 Compressor Remarks 2 Fan Number of fan speeds Fan speed notches 4 2 Low Medium2 Medium1 High Low High 4 Vane up down vane change 3 1 Drain pump control The drain pump turns ON for the specified amount of time when any of the followin...

Page 42: ...n When the mode is not Hot adjust or Defrosting mode during HEAT compressor operation the controller changes to auxiliary heater ON Thermoregulating function follows the below table with according to desired temp and room temp 2 Auxiliary heater Temperature difference Keeping condition Auxiliary heater z 0 0 z 3 OFF 3 z ON 2 During the over rise prevention control Airflow increasing in the indoor ...

Page 43: ...fan speed by the remote controller Hot adjuster mode 1 3 3 Thermostat OFF mode When the compressor stops by the thermoregulating etc the indoor fan operates in Extra low 1 This control is same for the model without auxiliary heater 1 DEFROST will be displayed on the remote controller during the defrost operation 3 5 Fan speed up mode When the control changes to over rise prevention The condition o...

Page 44: ... Indoor liquid pipe temperature or indoor intake temperature is at the short or open level temperature Ö4 Every hour after the drain pump has been switched from ON to OFF w Refer to 7 1 COOL opration for liquid level detection method 1 Initial setting OFF HEAT last setting When changing the mode from exception of HEAT to HEAT operation Downward C 2 Air flow direction Horizontal Downward A Downward...

Page 45: ...e is switched from COOL or DRY to another operation mode HEAT mode 2 ON for 6 minutes after the drain sensor is determined to be submerged using the liquid level detection method given below 3 ON for 6 minutes after indoor piping liquid piping temperature indoor intake temperature 10deg AND the drain sensor input is at the short or open level If condition 2 or 3 is still being met after the drain ...

Page 46: ...me setting The display will disappear from about 10 seconds after the setting has been entered 2 Set the time to start the unit as follows 2 1 Press the 1 button and B will be displayed 2 2 Press the 2 button to set the current time 2 3 The field C will be displayed The field C will display a range of time between 23 50 and 00 00 2 4 Press the 3 button and D will be displayed 3 Set time to stop th...

Page 47: ...er start up Fixed to the Hz which has been regulated according to the temp difference between intake temp and set temperature Fixed frequency minimum Hz to 48Hz 2 In case of restart a 0 min to 1 min after start up Fixed to minimum Hz b 1 min to 3 min after start up Fixed to the Hz which has been regulated according to the temperature difference between intake temp and set temperature Fixed frequen...

Page 48: ...e controlled according to the outdoor outside temperature TH7 Control method Inverter control Rotation times Fan step N 0 and 2 to 10 Compressor start up Fan step is fixed to 9 for 30 seconds after the start up of compressor 2 2 Correction of fan step according to the outdoor cond eva temperature Fan step will be corrected according to the outdoor cond eva temp TH6 Correction range of condensing t...

Page 49: ... of following conditions is satisfied and any of step up conditions are NOT satisfied 1 The discharge temperature TH4 is 90 or less 2 The outdoor condenser evaporetor temperature TH6 is 52 or less 3 The discharge super heat temp is 40 or less Super heat temperature Discharge temperature TH4 Outdoor condenser evaporetor temperature TH6 4 The sub cool temperature is 3 or less Super heat temperature ...

Page 50: ...ade large in the condition written below Indoor cond eva temperature TH5 Indoor liquid pipe temperature TH2 6 Set the targeted value of the discharge temperature about 5 to 15 lower W This control does not work for 3 or 7 minutes after the compressor gets started 4 3 Low discharge super heat temperature protection control Set a small value for the targeted opening pulse according to the discharge ...

Page 51: ...ation is released Returned to normal control 2 Correction of the frequency changing amount according to the estimated discharge temp If the estimated discharge temperature is more than 113 the frequency changing amount will be corrected Correction amount 0Hz to 6Hz 3 Frequency control after the defrosting operation After the defrosting operation is finished the compressor will be stopped for 1 min...

Page 52: ...ave passed since the compressor stopped b Outside temperature TH7 0 Control details Fan step will be set to 0 N 0 for 2 minutes after the start up of compressor Start up control will turn into the normal control after the 2 minute operation of compressor 2 3 Others 1 Fan also stops when the compressor is being stopped Fan step 0 However fan step will be set to 10 while the compressor is being stop...

Page 53: ...e pulse to 400 4 LEV A 4 1 Normal control LEV opening pulse will be controlled every minute to adjust the discharge temperature in order to let the intake super heat temperature be 0 to 5 Control timing Once per minute after 3 or 7 minutes have passed since the compressor started Opening pulse range The following range is specified according to the compressor operating frequency Opening pulse rang...

Page 54: ...e Super heat temperature Discharge temperature TH4 Outdoor condenser evaporator temperature TH6 4 The sub cool temperature is 12 or more Sub cool temperature Outdoor condenser evaporator temperature TH6 Outdoor liquid pipe temperature TH3 Requirement for step down LEV opening pulse will step down when any of following conditions are satisfied and above step up conditions are not satisfied 1 The di...

Page 55: ... 2 Change of Operation mode When the mode changes from HEAT to COOL When the operation stops in HEAT mode 6 3 Start up control in HEAT operation at low outside temperature RP3 only Requirement Same as the explanation in fan control Control details OFF for 2 minutes after the start up of compressor but ON if 2 minutes pass 6 4 In the defrosting operation Always OFF during the defrosting operation 1...

Page 56: ...nk temperature TH8 Correction range of heat sink temperature 68 to 78 Correction range of fan step 0 to 2 2 4 Others Fan also stops when the compressor is being stopped Fan step 0 However fan step will be set to 10 while the compressor is being stopped due to the abnormal heat sink temperature Error code U5 At this time the compressor is just waiting 3 minutes to restart 1 2 Normal control Same co...

Page 57: ... frost amount heavy The c indicates the defrosting operation in case the thermostat is turned on off frequently because the frost amount is small and the air conditioning load is heavy The d indicates the defrosting operation in case the thermostat is turned on off frequently because the frost amount is large and the air conditioning load is light 2 Stop 1 2 Actuator at the beginning of defrosting...

Page 58: ...procedure if any of the above conditions except d e is detected 1 Start the outdoor fan 2 Let the compressor operation frequency down to 30Hz from the defrosting operation frequency 3 Stop the compressor for 1 minute when the compressor operation frequency becomes 30Hz After 1 to 3 are completed set the compressor operation frequency to the normal start up pattern A Previous operation time t2 7 mi...

Page 59: ...5 80 66 77 82 106 54 67 70 87 62 81 86 87 96 97 74 77 47 51 59 58 53 55 70 68 82 77 85 106 55 67 69 85 69 78 85 87 96 94 49 57 74 61 76 80 85 106 46 51 55 58 54 55 54 67 67 84 67 79 53 62 67 82 51 57 55 65 54 54 59 71 79 79 70 80 85 106 58 67 72 92 66 74 78 87 96 92 59 57 53 53 72 63 76 70 72 84 65 74 88 82 96 85 51 57 55 65 54 54 58 67 72 92 66 74 min Rated max max max max max max max Rated Rated...

Page 60: ...LED1 of A Control Service Tool while power is supplied to the compressor Models No more Hz up Hz down 12 5 A 24 5A 13 A 26A PUHZ RP1 6 2 2 5 3VHA PUHZ RP4 6VHA Models Correction of starting current A 16 Correction of max current A 24 OFF ON 4hrs 15 min 15 min 15 min Power supply 1hr 1hr W Repeated OFF ON 30 min OFF 15 min 15 min 15 min Comp stopped 1hr 1 1 1 1 1 1 1 1hr 1hr W Repeated 1 Energized ...

Page 61: ...Frozen protection control may be activated when the indoor intake temp is 15 or less 2 During replacement operation 2 1 Normal control In COOL operation replacement operation will be conducted by opening the replacement filter circuit in order to circulate refrigerant Compressor control The same continuous operation as COOL operation regardless of intake temperature LEV A control Always closed LEV...

Page 62: ...he same continuous operation as COOL operation regardless of intake temperature LEV A control Opening pulse is fixed to step 3 480 pulse LEV B control Completely closed 0 pulse Fan control Fan step is fixed to step 10 Four way valve OFF in COOL operation w Low pressure switch mentioned in a is equipped in RP4 to 6 only 2 During pump down operation 1 Pump down operation is considered to be finished...

Page 63: ...ay not be achieved if the information is incorrect In models with indoor fan phase control pulsation control or DC fan control the SW2 capacity settings are used to control the fan air volume If the settings are made incorrectly the air volume may be higher or lower than expected performance may drop or the noise level may increase 0 1 2 3 9 Wireless remote controller setting Control PCB setting J...

Page 64: ...ce Tool PAC SK52ST setting w 2 Power failure automatic recovery can be set by either remote controller or this DIP SW If one of them is set to ON Auto recovery activates Please set Auto recovery basically by remote controller because all units don t have DIP SW Please refer to mode 01 in the table on page 69 w 3 SW7 1 2 are used to switch the setting of Low level Sound Priority Mode However local ...

Page 65: ...etting the SW2 a switch of A Control Service Tool PAC SK52ST and turning on off the SW5 1 on the controller board However the setting may not be fixed to the desired value in case of a couple of minutes right after the start up in case the operating frequency is limited to some extents by various restrictive controls such as the SW7 3 to 6 settings and in case the operating frequency is set to be ...

Page 66: ...1 Insulate this point securely as this is not used Low level sound priority mode circuit Outdoor unit controller board Outdoor unit controller board Pump down c Refrigerant collecting pump down Perform the following procedures to collect the refrigerant when relocating or replacing the indoor or outdoor units 1Before collecting the refrigerant first make sure that the all of the SW5 DIP switches f...

Page 67: ...2 SW3 1 2 3 4 5 6 1 Switch Connector Function Types CN33 Not applicable Connector Function Changing of LED display Self diagnosis Operation monitor Operation monitor Under operation or suspension No ON Fixing the selected mode Not applicable OFF Short Open OFF Action by the switch operation Action by open short Effective timing Effective timing Function of switches ...

Page 68: ...yed during replacement opera tion RP4 6VHA only 3 When the display blinks Inspection code is displayed when compressor stops due to the work of protection devices Display Contents to be inspected When power is turned on F3 F5 F9 E8 E9 EA Eb Ec E0 E7 63L connector red is open 63H connector yellow is open 2 connectors 63H 63L are open Indoor outdoor communication error Signal receiving error Outdoor...

Page 69: ... hours or more hundreds digit tens digit and ones digit are displayed by turns Example When 2450 hours 245 10 hours 0 5 secs 0 5secs 2 secs 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 Compressor operating current 0 50 LEV A opening pulse 0 480 0 50 wOmit the figures after the decimal fractions 0 480 When it is 100 pulse or more hundreds digit tens digit and ones digit are displayed by turns Examp...

Page 70: ...and ones digit are displayed by turns Example When 130 0 5 secs 0 5secs 2 secs A Code display Code display 0 20 When no error history 0 and are displayed by turns When no error history 0 and are displayed by turns 1 ON 2 3 4 5 6 Thermostat ON time 0 999 Test run elapsed time 0 120 0 999 When it is 100 minutes or more the hundreds digit tens digit and ones digit are displayed by turns Example When ...

Page 71: ...1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 Indoor pipe temperature Cond Eva TH5 1 Indoor 1 39 88 39 88 When the temperature is 0 or less and temperature are displayed by turns 39 88 When the temperature is 0 or less and temperature are displayed by turns 39 88 When the temperature is 0 or less and temperature are displayed by turns 8 39 Indoor pipe temperature Liquid TH2 2 Indoor 2 39 88 Indoor pipe temperatur...

Page 72: ...git and ones digit are displayed by turns V 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 SW2 setting Display detail Explanation for display Unit 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 Outdoor pipe temperature Cond Eva TH6 39 88 Outdoor heat sink temperature TH8 40 200 39 88 When the temperature is 0 or less and temperature are displayed by turns 40 200 When the ...

Page 73: ...3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 Code display Operation frequency on error occurring 0 255 0 255 When it is 100Hz or more hundreds digit tens digit and ones digit are displayed by turns Example When 125Hz 0 5 secs 0 5secs 2 secs 1 ON 2 3 4 5 6 Hz Fan step on error occurring 0 10 0 10 1 ON 2 3 4 5 6 Step 25 1 1 ON 2 3 4 5 6 Pulse LEV A opening pulse on error occurring 0 480 0 48...

Page 74: ... digit are displayed by turns 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 15 15 0 255 When the temperature is 100 C or more hundreds digit tens digit and ones digit are displayed by turns Example When 150 C 0 5 secs 0 5secs 2 secs Sub cool on error occurring SC 0 130 Cooling TH6 TH3 Heating TH5 TH2 0 130 When the temperature is 100 C or more hundreds digit tens digit and ones digit are displayed ...

Page 75: ...at sink temperature over rise prevention control Heat sink temperature over rise Correction value 0 to 2 of FAN step for this control will be displayed Ones digit Code or 0 to 2 Code 0 to 2 Condensing temperature over rise Correction value 1 to 2 of FAN step for this control will be displayed will be displayed in case the correction value is 1 Tens digit Example In case of 1 and 2 correction value...

Page 76: ... noise nearby If you make a mistake during any point of this procedure you can quit the function setting mode by pressing 8 once and then return to step 1 FUNCTION FUNCTION 1 2 3 FUNCTION FUNCTION 3 4 Operating instructions entering settings with a wired remote controller 1 Go to the function setting mode Switch OFF the remote controller Press the A FILTER and B TEST RUN buttons simultaneously and...

Page 77: ...n selection 8 Complete function selection Press the FILTER A and TEST RUN B buttons simultaneously for at least two seconds The function selection screen will disappear momentarily and air conditioner OFF display will appear See diagram 8 a c h g b f d e 3 00 refrigerant address FUNCTION 5 1 FUNCTION 8 FUNCTION FUNCTION 6 2 2 FUNCTION FUNCTION 7 2 1 FUNCTION 4 1 If 88 appears in the room temperatu...

Page 78: ...tons to change the power voltage setting to 01 240V Direct the wireless remote controller toward the sensor of the indoor unit and press the button A CHECK h CHECK min h h CHECK 00 1 CHECK 00 2 CHECK 04 3 CHECK 01 4 Flow of function selection procedure The flow of the function selection procedure is shown below This example shows how to turn off the function that raises the set temperature by 4 de...

Page 79: ... No of air outlets Installed options high performance filter Up down vane setting Energy saving air flow Heating mode Humidifier Direct Add on type Swing Set temperature in heating mode 4deg up Fan speed when the heating thermostat is OFF Fan speed when the cooling thermostat is OFF Detection of abnormality P8 of the pipe temperature Not available Available Indoor unit operating average Set by ind...

Page 80: ... Not supported Supported No vanes Equipped with vane No 1 set Equipped with vane No 2 set Disabled Enabled Not available Available Available Not available Extra low Low Setting fan speed Setting fan speed Stop Available Not available 1 2 3 1 2 3 1 2 3 1 2 1 2 3 1 2 1 2 1 2 1 2 3 1 2 1 2 07 08 09 10 11 12 23 24 25 27 28 standard High ceiling 1 High ceiling 2 PLA RP AA type Refer to w1 Refer to w2 T...

Page 81: ... AUTO STOP AUTO START h min RESET SET CLOCK MODEL SELECT Model No Temperature button SET button Procedure 1 Press the SET button using a pointed implement MODEL SELECT flashes and the currently set model No appears steadily lit 2 Press the temperature buttons to select the model No to set 3 Press the SET button using a pointed implement MODEL SELECT and the set model No appear steadily lit for 3 s...

Page 82: ...1 Louver None 2 Louver Equipped 1 Vane Equipped Swing function Equipped 2 Vane Equipped Swing function None 3 Vane None 4 No definition Vane None 1 Cool Dry Automatic Fan Heat 2 Cool Dry Fan 3 Cool Dry Automatic Heat 4 Cool Dry Automatic Fan Burner used heat Heat 5 Cool Fan 6 Cool Automatic Fan Heat 7 Cool Fan Heat 8 Cool Dry Fan Heat 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016...

Page 83: ... 2 4 Speed 1 1 Louver None 2 Louver Equipped 1 Vane Equipped Swing function Equipped 2 Vane Equipped Swing function None 3 Vane None 4 No definition Vane None 1 Cool Dry Automatic Fan Heat 2 Cool Dry Fan 3 Cool Dry Automatic Heat 4 Cool Dry Automatic Fan Burner used heat Heat 5 Cool Fan 6 Cool Automatic Fan Heat 7 Cool Fan Heat 8 Cool Dry Fan Heat 087 088 089 090 091 092 093 094 095 096 097 098 09...

Page 84: ...peed 2 4 Speed 1 1 Louver None 2 Louver Equipped 1 Vane Equipped Swing function Equipped 2 Vane Equipped Swing function None 3 Vane None 4 No definition Vane None 1 Cool Dry Automatic Fan Heat 2 Cool Dry Fan 3 Cool Dry Automatic Heat 4 Cool Dry Automatic Fan Burner used heat Heat 5 Cool Fan 6 Cool Automatic Fan Heat 7 Cool Fan Heat 8 Cool Dry Fan Heat 173 174 175 176 177 178 179 180 181 182 183 18...

Page 85: ...he SET button using a pointed implement Check that the remote controller s display has stopped before continuing MODEL SELECT flashes and the model No 3 digits appears steadily lit 2 Press the MINUTE button twice The pair number appears flashing 3 Press the temperature buttons to select the pair number to set 4 Press the SET button using a pointed implement The set pair number is displayed steadil...

Page 86: ... supply 2 Set DIP switch SW8 2 on the outdoor controller board to ON to start replacement operation The replacement operation is performed using the cooling system Cool air will flow from the indoor unit during the replace ment operation During the replacement operation is displayed on the remote controller and LED1 green and LED2 red on the control board of the outdoor unit flash together 3 Repla...

Page 87: ...ower Then in actuality the fan may stop or run in the reverse direction depending on the outside air which does not mean malfunction 6 Press the ON OFF button to reset the test run in progress The test run will be automatically shut down after two hours in response to the AUTO STOP setting of two hours on the timer During the test run the room temperature display shows the indoor unit tubing tempe...

Page 88: ...Abnormality of drain sensor DS Malfunction of drain up machine Freezing overheating protection is working Abnormality of pipe temperature Abnormality of pipe temperature thermistor Cond Eva TH5 LCD Nonconformity Content E0 E5 E6 EF U0 UL F1 F9 FFFF Abnormality of the signal transmission between remote controller and indoor unit Abnormality of the signal transmission between indoor unit and outdoor...

Page 89: ...e controller or indoor unit micro computer troubles if there is not any other wrong emergency opera tion starts as the indoor control board switch SWE is set to ON During the emergency operation the indoor unit is as follows 1 Indoor fan high speed operation 2 Drain pump only provided model w When the remote controller cannot be used for the wireless remote controller emergency operation is availa...

Page 90: ...ir conditioner will continuously be operated by supplying power and stopping it It can not be turned on or off by remote control and temperature control is not possible 4Do not perform emergency heating operation for an extended period of time If the outdoor unit starts defrosting during this period cold air will blow out from the indoor unit 5Do not perform emergency cooling operation for more th...

Page 91: ...5 45 80 50 35 5 30deg 5deg HEAT 20 5 45 50 22 5 80 5 7 5 30deg 5deg w1 w1 w1 w1 w2 w2 Remarks w1 If the thermistor temperature data is normal not open short that data is loaded into the control as valid data If the unit enters emergency operation because TH values have become mismatched setting the thermistors to open short corrects the settings w2 If one thermistor is set to open short the values...

Page 92: ...l control by the controller of MELANS cancel the error code by the controller of the MELANS and in case of distant handy combined operation cancel the error code by cancelling distant operation Malfunction diagnosis method at maintenance service Digital control has memory function that memorizes latest error code even if it is cancelled by remote controller or power is shut off so error histories ...

Page 93: ...then off for 5 seconds The unit with error can be inspected by using this In case unit other than indoor unit such as outdoor unit and con troller of MELANS has an error all the indoor units of the same refrigerant system stop fan operation and outdoor units operate intermittently for 3 minutes 5 To delete error code When something is wrong with air conditioner error code P1 etc is memorized but e...

Page 94: ... O 2 times beep O 4 times beep O 5 times beep O 6 times beep O 8 times beep O 2 times Other than above Operation LED 1 sec O 1 time 1 sec O 2 times 1 sec O 4 times 1 sec O 5 times 1 sec O 6 times 1 sec O 8 times 1 sec O 2 times Other than above Indoor unit Inspected unit Check code F1 F9 U0 UP E6 EE No check code normal Beep output beep beep O 1 time Other than above No output beep beep beep Opera...

Page 95: ...ll be displayed when remote controller transmits the result of diagnosis to indoor or outdoor unit and receives no response When there might be other problems than diagnosed remote controller 3 There might be noise on transmission path or damage of other remote controllers or indoor units Check the trans mission path and other controllers If the transmission is not possible E3 blinks E3 will be di...

Page 96: ...less remote controller and indoor controller board are mis matched 2Disconnecting of wireless receiving board and contact failure 3Factor of the above 1 1Check the pair number settings 2Check the indoor controller board connec tor CN90 Check the wireless receiving board con nector CNB 3Check the details of above 1 5 When operating by the wireless remote controller beep sound is heard without worki...

Page 97: ...rille to check the filter Clean the filter and remove dust or dirt away 2Clean the heat exchanger Rising the indoor piping temperature and outlet pressure means clogging in the heat exchanger 3Remove screen in the air duct air outlet intake 4Check if gas leaks or not in the piping joint 5Operating condition check in the refriger ant cycle 6Since outlet temperature and indoor heat exchanger tempera...

Page 98: ...on the main power Normal The start up diagnosis will be over in around 2 minutes Mis wiring of indoor outdoor connecting wire Breaking of indoor outdoor connecting wire S3 Defective indoor controller board Defective outdoor controller circuit board Refer to Self diagnosis action table in order to solve the trouble In case of communication errors the display of remote controller may not match the L...

Page 99: ...cuit board are blown FUSE1 FUSE2 Check the wiring of the outdoor unit Check if the wiring is bad Check if the fuses are blown The fuses on the outdoor controller circuit board will be blown when the indoor outdoor connecting wire short circuits FUSE1 FUSE2 Bad wiring of the outdoor controller board The fuses on the outdoor controller circuit board are blown FUSE1 FUSE2 Check if mis wiring breaking...

Page 100: ... outdoor controller circuit board Replace the outdoor controller circuit board Normal Only the unit which has the refrigerant address 0 supplies power to the remote controller Set the refrigerant address to 0 In case of the multiple grouping system recheck the refrigerant address again Defective indoor power board Replace the indoor power board Defective outdoor power circuit board Replace the out...

Page 101: ...contact of the remote controller wire Check the voltage of the terminal block TB5 connecting the remote controller wire If it is not between DC 10V and DC16V the indoor controller board must be defective The remote controller wire short circuits Check if the remote controller wire is short circuited Defective indoor controller board Replace the indoor controller board Diagnosis flow Cause Inspecti...

Page 102: ...arging thermistor TH4 Open short circuit of outdoor pipe temperature thermistor Liquid TH3 Open shortcircuitofoutdoorpipetemperaturethermistor Cond Eva TH6 Open short circuit of outside temperature thermistor TH7 Open short circuit of heat sink thermistor TH8 Abnormal temperature of heat sink Abnormality such as overvoltage or voltage shortage Abnormality of power module Current sensor error Abnor...

Page 103: ...oor unit transmission error Transmitting error Indoor outdoor unit transmission error Signal receiving error Indoor outdoor unit transmission error Transmitting error Start up time over Serial Transmission error Not defined Beep output High prior remote controller Unit which detects error Error details Inspection method and troubleshooting Display of remote controller or A control service tool Mis...

Page 104: ...ote controller transmitting error is detected by remote controller Remote controller signal receiving error is detected by indoor unit Remote controller transmitting error is detected by indoor unit Serial communication error Communication between outdoor controller board and outdoor power board Communication between outdoor controller board and M NET p c board Communication error of high prior si...

Page 105: ... short cycle on its air duct Compressor over current breaking Start up locked Compressor over current breaking Abnormality of current sensor P B Abnormality of power module Open short of discharge thermistor TH4 Open short of outdoor ther mistor TH8 Open short of outdoor thermistors TH3 TH6 TH7 and TH8 1Check if connectors TH3 TH4 TH6 and TH7 on outdoor controller board and conn ector CN3 on outdo...

Page 106: ...oling mode or high in heating mode refrigerant circuit may have defective 5 Check pipe liquid temperature with remote controller in test run mode If there is exclu sive difference with actual pipe liquid tem perature replace indoor controller board There is no abnormality if none of above comes within the unit Put the power off and on again to operate P4 Abnormality of drain sensor DS 1 Suspensive...

Page 107: ... high temperature operation beyond the tolerance range 4 Defective indoor fan motor Fan motor is defective Indoor controller board is defective 5 Overcharge of refrigerant 6 Defective refrigerant circuit clogs 7 Bypass circuit of outdoor unit is defective Cooling or drying mode 1 Check clogs of the filter 2 Remove shields 4 Measure the resistance of fan motor s winding Measure the output voltage o...

Page 108: ...r controller board cannot finish transmitting 30 times consecutively 12 Put the power off and on again to check If abnormality generates again replace indoor controller board 1 Contact failure at transmission wire of remote controller 2 All remote controllers are set as sub remote controller In this case E0 is displayed on remote controller and E4 is displayed at LED LED1 LED2 on the outdoor contr...

Page 109: ... 7 Replace controller board When items above are checked but the units can not be repaired Abnormalities detected when the power is put on F3 5202 63L connector open Abnormal if 63L connector circuit is open for three minutes continuously after power supply 63L Low pressure switch PUHZ RP4 6VHA only 1 Disconnection or contact failure of 63L connector on outdoor controller circuit board 2 Disconnec...

Page 110: ...r of connected indoor units Abnormal if the number cannot be checked automatically due to mis wiring of indoor outdoor unit connecting wire and etc after power is turned on for 4 minutes 2 Abnormal if outdoor controller circuit board recognizes the number of connected indoor units as 4 units or more 1 Check disconnection or looseness or polarity of indoor outdoor unit connecting wire of indoor and...

Page 111: ... to Judgment and action for F5 7 Check linear expansion valve Refer to page 28 8 Replace outdoor controller board Case U2 1102 Abnormal high discharging temperature 1 Abnormal if discharge temperature thermistor TH4 exceeds 125 or 110 continuously for 5 minutes Abnormal if condenser evaporator temperature thermistor TH5 exceeds 40 during defrosting and discharge temperature thermistor TH4 exceeds ...

Page 112: ...charge temperature thermistor TH4 2 Defective holder of discharge temperature thermistor 3 Disconnection or loose connection of linear expansion valve s coil 4 Disconnection or loose connection of linear expansion valve s connector 5 Defective linear expansion valve 12 Check the installation conditions of discharge temperature thermistor TH4 3 Check the coil of linear expansion valve Refer to page...

Page 113: ... input circuit of out door controller board 7 Defective compressor 1 Open stop valve 2 Check facility of power supply 3 Correct the wiring U V W phase to compressor Refer to page 125 and 126 4 Check indoor outdoor fan 5 Solve short cycle 6 Replace outdoor controller circuit board 7 Check compressor Refer to page 28 W Before the replacement of the outdoor controller circuit board disconnect the wir...

Page 114: ... between outdoor controller circuit board and M NET board is not available 1 Check disconnection looseness or breaking of connection wire between outdoor controller circuit board CNMNT and M NET board CN5 2 Check disconnection looseness or breaking of connection wire between outdoor controller circuit board CNMNT and M NET board CND 3 Refer to 4 in 2 2 M NET Wiring method on page 4 E0 No display R...

Page 115: ...sly because of noise or etc Note The address and attribute displayed at remote controller indicate the con troller that detected abnormality 1 Transmission processor could not transmit because short cycle voltage of noise and the like have entered into trans mission wire continuously 2 Transmission quantity has increased and transmission is not possible because there was wiring mistake of terminal...

Page 116: ...defective then shut off the power supply of outdoor unit and indoor unit and FRESH MASTER or LOSSNAY at the same time for two minutes or more and put the power on again If there was no trouble with 1 5 above in sin gle refrigerant system one outdoor unit con troller of displayed address or attribute is defective If there was no trouble with 1 5 above in dif ferent refrigerant system two or more ou...

Page 117: ...of indoor unit or LOSSNAY 7 If displayed address or attribute is nonexistent 1 The unit of former address does not exist as address switch has changed while the unit was energized 2 Abnormality is detected when indoor unit transmitted because the address of FRESH MASTER and LOSS NAY are changed after sequential operation of FRESH MASTER and LOSS NAY by remote controller M NET NO RESPONSE Abnormal ...

Page 118: ... Connect to the indoor controller board CN2D 12 16V DC CN02 Connect to the indoor controller board CN03 Between 1 and 2 0 24V DC Indoor Outdoor transmission Between 2 and 3 220 240V AC CN01 Connect to the Terminal Block TB4 Indoor outdoor connecting line Between 1 and 2 220 240V AC Between 2 and 3 0 24V DC Indoor outdoor transmission Fuse 4A 250V ...

Page 119: ...OSSNAY CN41 Connector HA terminal A CN31 Drain sensor DS CN29 Condenser evaporator temperature thermistor TH5 CN25 Humidifier output 12 16V DC Jumper connector J11 J15 Unit setting Jumper connector J21 J24 Capacity setting SWE Emergency operation LED1 Power supply I B LED2 Power supply R B LED3 Transmission Indoor outdoor CN03 Connect to the indoor power board CN02 Between 1 to 3 220 240V AC Betwe...

Page 120: ...AY CN41 Connector HA terminal A CN31 Drain sensor DS CN25 Humidifier output 12 16V DC Jumper connector J11 J15 Unit setting Jumper connector J21 J24 Capacity setting SWE Emergency operation LED1 Power supply I B LED2 Power supply R B LED3 Transmission Indoor outdoor CN03 Connect to the indoor power board CN02 Between 1 to 3 220 240V AC Between 3 to 5 0 24V DC Indoor outdoor transmission FAN Fan mo...

Page 121: ...4 Test operation SW1 Forced defrost detect history record reset refrigerant address J1 J6 Model setup Control power supply voltage 5V DC 4 75 5 25V DC CNMNT Connected to outdoor M NET board CNM A control service inspection kit TH4 Thermistor Discharge TH3 Thermistor Outdoor pipe TH7 Thermistor Outdoor TH6 Thermistor Outdoor 2 phase pipe LEV A LEV B Linear expansion valve CNDC 300 380V DC Connect f...

Page 122: ...the ACL CN52C 52C relay signal Connect to the outdoor controller circuit board CN52C CN5 Primary current Connect to the outdoor power circuit board CN5 CNAC1 CNAC2 220 240V AC Connect to the outdoor controller circuit board CNAC EI Connect to the earth LI NI Voltage of 220 240V AC is input Connect to the terminal block TB1 ...

Page 123: ...onnect ACL CN52C 52C relay signal Connect to the outdoor controller circuit board CN52C CN5 Primary current Connect to the outdoor power circuit board CN5 CNAC1 CNAC2 220 240V AC Connect to the outdoor controller circuit board CNAC EI Connect to the earth LI NI Voltage of 220 240V AC is input Connect to the terminal block TB1 ...

Page 124: ...HA1 PUHZ RP5VHA1 A PUHZ RP6VHA1 PUHZ RP6VHA1 A CNAC1 CNAC2 220 240V AC Connect to the outdoor controller circuit board CNAC EI Connect to the earth LI NI Voltage of 220 240V AC is input Connect to the terminal block TB1 CN5 Primary current Connect to the power circuit board CN5 LO NO Voltage of 220 240V AC is output Connect to the outdoor power circuit board SC R SC S ...

Page 125: ...2 Connect to the outdoor controller circuit board CN2 1 5 Outdoor power circuit board Transmitting signal to the outdoor controller circuit board 0 5V DC 2 5 Zero cross signal 0 5V DC 3 4 Not used 6 5 15V DC 7 5 15V DC 1 2 6 7 5 1 7 P1 N L N1 N1 W V U P2 N2 DIP IPM DIP PFC Brief Check of DIP IPM and DIP PFC W Usually they are in a state of being short circuited if they are broken Measure the resis...

Page 126: ...tting LED3 Outdoor unit connecting display CN5 Serial communication with outdoor board SW11 M NET address Ones digit SW12 M NET address Tens digit SW1 Switch for communication display between M NET and board CND Power supply 5V 12V input 2 to 3 5V DC Input 1 to 3 12V DC Input CNDC 300V 370V DC Connect to the outdoor controller circuit board CNDC CN2 Connect to the outdoor controller circuit board ...

Page 127: ...r twice to clear FILTER from the display See the operation manual that came with the product for how to clean the filters 3 STANDBY is displayed on the screen 3 This is displayed when the unit starts HEAT operation when the thermostat puts the compressor in operation mode or when the outdoor unit ends DEFROST operation and returns to HEAT operation The display will automatically disappear around 1...

Page 128: ...he blower of the outdoor unit is controlling the airflow amount in order to keep the optimum operating condition 5 A sound similar to water flowing is heard from the unit 5 This is not a malfunction This is the sound which is heard when the refrigerant is flowing inside the indoor unit 2 The fan speed doesn t match the setting of the remote controller in HEAT operation The up down vane will be aut...

Page 129: ...ler when the above situations are released 3 The airflow direction doesn t change Up down vane left right louver 3 1 Check if the vane is set to a fixed position Check if the vane motor connector is removed 2 Check if the air conditioner has a function for switching the air direction 3 If the air conditioner doesn t have that function NOT AVAILABLE will be displayed on the remote controller when A...

Page 130: ...r drips down Heating water drips down from the heat exchanger Make use of optional parts Drain Socket and Drain pan if these water needs to be collected and drained out for once Water or moisture is expelled from the outdoor unit Batteries are being exhausted Replace them and press the reset button of remote controller The display of wireless remote controller gets dim or doesn t come on The indoo...

Page 131: ...roller group operation Wired remote con troller This can be set by using the function selection from the remote controller D Power failure auto matic recovery operation The remote controller cord for the wired remote controller can be extended to up to 500 meters w The optical receiving section cord for the wireless remote controller cannot be extended E Individual opera tion from separate room Re...

Page 132: ...connected to a MELANS system controller for M NET The hand held remote controller is the Slim A control remote controller In the restriction of the MELANS system the number of indoor units controlled is calculated as the number of dedi cated outdoor units in the case of the A controller Any of from among simultaneous twin triple and quad is counted as one unit Number of dedicated outdoor units con...

Page 133: ...or unit Remote controller Power source wiring Polarity Power supply terminal block L N Indoor outdoor connection cable terminal block S1 S2 S3 Polarity Remote controller cable terminal block 1 2 No polarity 2 Wireless remote controller Slim Air Conditioners System Remote controller optical receiver section connection circuit Outdoor unit OC Indoor unit IC Wireless remote controller optical receive...

Page 134: ...d the other to Sub If MA remote controller set switch No 1 to ON Main Factory setting and remaining switches to OFF Sub 2 Two wireless remote controllers OC Outdoor unit IC Indoor unit R Master remote controller R Wireless remote controller optical receiver section Slim Air Conditioners System Remote controller optical receiver section connection circuit Outdoor unit OC Cannot use two remote contr...

Page 135: ...are not multiple refrigerant systems Individual twin is a two refrigerant system and addresses must be set for two refrigerant systems Slim Air Conditioners System Remote controller connection circuit Controller cable Outdoor unit OC Indoor unit IC Wired remote controller R 2 3 2 OC A IC A IC B OC B 3 R 2 3 2 OC A IC A IC B1 OC B IC B2 3 3 R 2 3 9 OC A IC A IC B OC B 3 R 2 3 9 OC A IC A IC B1 OC B...

Page 136: ... is installed in a room and control room refer to the section on operating with two remote controllers Indoor unit Indoor unit Indoor unit Remote controller Control room room 1 room 2 room 3 15 7 Combined Remote Hand held Control Operation remote controller prohibit stop can be controlled from a remote location by routing the remote stop start adapter PAC SE55RA E sold separately through the relay...

Page 137: ...mmand is issued until the operation begins 1 1 This is when starting and stopping is performed by remote operation or external timer and when starting and stopping by the remote controller is to be prohibited Indoor unit circuit board CN32 Orange Red Brown On site wiring On site wiring On site wiring Timer Timer For remote operation On site wiring On site wiring This is not used Protect exposed wi...

Page 138: ... type CV CVS or equivalent Wire size Stranded wire 0 5mm2 to 1 25mm2 One wire 0 65mm to 1 25mm Display lamp etc No voltage a contact AC200V DC30V 1A or less External input function External input signal wire Use sheathed vinyl coated cord or cable Wire type CV CVS or equivalent Wire size Stranded wire 0 5mm2 to 1 25mm2 One wire 0 65mm to 1 2mm Switch No voltage a contact Start and stop operation i...

Page 139: ... the Lossnay linkage cable to the Lossnay external control input terminal blocks 1 and 2 At this time the input terminal blocks 1 and 2 have no polarity Wiring diagram Control circuit board Slim indoor unit Lossnay Lossnay linkage PAC SB81VS External control input terminal block 1 2 3 Connector CN2L 2 2 Precautions when wiring The Lossnay linkage cable can be extended up to a maximum of 500 meters...

Page 140: ...KYO100 8310 JAPAN cCopyright 2003 MITSUBISHI ELECTRIC ENGINEERING CO LTD Distributed in Sep 2004 No OCT04 REVISED EDITION A PDF 9 Distributed in Dec 2003 No OCT04 PDF 9 Made in Japan New publication effective Sep 2004 Specifications subject to change without notice ...

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Mitsubishi Electric Mr.SLIM PUHZ-RP1.6VHA, Service Technical Manual

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