Mitsubishi Electric PUMY-P36NHMU Technical & Service Manual Download Page 70

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Outdoor noise filter circuit board
PUMY-P36NHMU
PUMY-P36NHMU-BS
PUMY-P48NHMU

PUMY-P48NHMU

-BS

CNAC2
208/230V AC
(Connect to the
outdoor control-
ler circuit board
(CNAC))

EI
Connect to
the earth

LI, NI
Voltage of 208/230V AC is input
(Connect to the terminal block (TB1))

CN5
52C driving
signal (Connect
to the outdoor
controller circuit
board (CNLVB))

LO, NO
Voltage of
208/230V AC is out-
put (Connect to the
outdoor power
circuit board)

CNAC1
208/230V AC
(Connect to the
M-NET power
circuit board
(M-P.B.))

CN5
Primary current
(Connect to the
outdoor power
circuit board
(CN5))

RS1
Rush current protect
resistor
20

± 5% / 10W

E2
Connect to the
earth

52C Relay
(Coil resistance 155

(typ))

Current
tranceformer
(Primary current)

Summary of Contents for PUMY-P36NHMU

Page 1: ...ARTS 99 OUTDOOR UNIT No OC366 REVISED EDITION C Model name Standard type PUMY P36NHMU PUMY P48NHMU Salt proof type PUMY P36NHMU BS PUMY P48NHMU BS HFC utilized R410A Model name indication July 2008 NOTE This service manual describes technical data of out door unit As for indoor units refer to its service manual RoHS compliant products have G mark on the spec name plate Service Ref PUMY P36NHMU PUM...

Page 2: ...Determine required Indoor Fans Speed during defrost mode 0 20k 27k 39k 62K None Black Blue White Red Stopped Setting on remote controller Very Low Low High Note The setting will be disabled when Heater contact signal is OFF Service ref PUMY P48NHMU BS does not have this function Indoor unit must be R410A UL model for this function to operate CN22 input resistance CN22 input cable color FAN SPEED S...

Page 3: ...rost Contact OFF Stage 2 Outdoor unit HP operation Heater contact ON signal Stage 3 Outdoor unit OFF Standby Heater contact ON signal TH7 Outdoor Temperature a 12 10 F When the set temperature ranges overlap the previously set pattern 1 2 or 3 has a priority The stage 1 has the highest priority 2 the second and then 3 b Based on above chart listed the sequence of operation on On Ambient Decrease S...

Page 4: ...R S R S CN24 H2 88H H1 88H 26H 88H 1 phase power supply 208V 230V 60Hz Control board FS1 2 Thermal fuse H1 H2 Heater 26H Overheat protection thermostat 88H Electromagnetic contactor Wiring digram For relay X use the specifications given below Operation coil Rated voltage 12VDC Power consumption 0 9W or less Use the diode that is recommended by the relay manufacturer at both ends of the relay coil ...

Page 5: ...r If the refrigerant is charged from gas phase composition change may occur in refrigerant and the efficiency will be lowered Do not use refrigerant other than R410A If other refrigerant R22 etc is used chlorine in refrige rant can cause deterioration of refrigerant oil etc Use a vacuum pump with a reverse flow check valve Vacuum pump oil may flow back into refrigerant cycle and that can cause det...

Page 6: ...resistant to salt damage observe the following precautions to maintain the performance of the unit 1 Avoid installing the unit in a location where it will be exposed directly to seawater or sea breeze 2 If the cover panel may become covered with salt be sure to install the unit in a location where the salt will be washed away by rainwater If a sunshade is installed rainwater may not clean the pane...

Page 7: ...52 12 70 15 88 19 05 17 0 43 64 22 0 7 8 26 0 1 3 64 29 0 1 9 64 17 0 22 0 24 0 27 0 36 0 Nominal dimensions inch Flare nut dimensions Outside diameter inch Dimension B mm inch R410A R22 Gauge manifold Charge hose Gas leak detector Refrigerant recovery equipment Refrigerant cylinder Applied oil Safety charger Charge valve Vacuum pump Flare tool Bender Pipe cutter Welder and nitrogen gas cylinder R...

Page 8: ...MEA US A handy remote controller for use in conjunction with the Melans centralized management system Addresses must be set Address setting is not necessary MA remote controller PAR 21MAA Outdoor unit Capacity 50 130 of outdoor unit capacity Type 06 Type 54 1 8 unit Indoor unit that can be connected Number of units Total system wide capacity P48 Type 06 Type 36 1 6 unit P36 Branching pipe componen...

Page 9: ... skylight type C Ceiling suspended type M Ceiling cassette type F Floor standing type Outdoor unit model type Sub number Unit model type UL model M NET control M NET control UL model Salt proof type Frequency conversion controller Outdoor unit MULTI S Cooling W B 15 24 C 59 75 F Heating D B 15 27 C 59 81 F W B 18 15 C 0 60 F Indoor side intake air temperature Outdoor side intake air temperature D ...

Page 10: ...1 3 16 H mm in 1 350 53 5 32 Weight kg lbs 130 287 Refrigerant R410A Charge kg lbs 8 5 18 7 Protection High pressure protection HP switch devices Compressor protection Discharge thermo Over current detection Fan motor protection Overheating Voltage protection Oil Model 2 3 73 FV50S Total Piping length Max m ft L oz 120 394 Farthest m ft 80 262 Max Height difference m ft 30 100 1 Chargeless length ...

Page 11: ... 16 H mm in 1 350 53 5 32 Weight kg lbs 130 287 Refrigerant R410A Charge kg lbs 8 5 18 7 Protection High pressure protection HP switch devices Compressor protection Discharge thermo Over current detection Fan motor protection Overheating Voltage protection Oil Model 2 3 73 MEL56 NHMU 1 FV50S NHMU2 Total Piping length Max m ft L oz 120 394 Farthest m ft 80 262 Max Height difference m ft 30 100 1 Ch...

Page 12: ...in 5 1 2 1 Model 08 48 900 o 7 520 Btu h Model 18 48 900 o 16 930 Btu h The total model capacity of indoor unit is 9000 o 2 20000 o 2 58000 Btu h Therefore the capacity of PKFY P08NAMU E and PLFY P18NLMU E will be calculated as follows by using the formula in 5 1 2 1 Model 08 54 500 o 8 460 Btu h Model 18 54 500 o 18 790 Btu h 8000 52000 2 Sample calculation 1System assembled from indoor and outdo...

Page 13: ...6 8 7 9 5 9 6 26 26 000 29 200 2 04 2 06 9 0 9 1 9 9 10 0 27 27 000 30 300 2 14 2 15 9 4 9 4 10 4 10 4 28 28 000 31 400 2 24 2 23 9 9 9 8 10 9 10 8 29 29 000 32 500 2 35 2 31 10 4 10 2 11 5 11 2 30 30 000 33 700 2 46 2 40 10 9 10 5 12 0 11 7 31 31 000 34 800 2 58 2 48 11 4 10 9 12 6 12 1 32 32 000 35 900 2 70 2 57 11 9 11 3 13 2 12 5 33 33 000 37 000 2 82 2 66 12 5 11 7 13 8 12 9 34 34 000 38 200 ...

Page 14: ...00 3 72 3 82 16 3 16 7 18 0 18 5 40 40 000 44 900 3 85 3 93 16 8 17 2 18 6 19 0 41 41 000 46 000 3 99 4 05 17 4 17 7 19 3 19 6 42 42 000 47 200 4 12 4 17 18 0 18 2 19 9 20 1 43 43 000 48 300 4 26 4 28 18 6 18 7 20 6 20 7 44 44 000 49 400 4 41 4 41 19 3 19 3 21 3 21 3 45 45 000 50 500 4 55 4 53 19 9 19 8 22 0 21 9 46 46 000 51 700 4 70 4 65 20 5 20 3 22 7 22 5 47 47 000 52 800 4 85 4 78 21 2 20 9 2...

Page 15: ... the rated time individual capacity at the rated time Individual capacity under stated conditions total capacity under the stated conditions o total capacity at the rated time Rated cooling capacity Rated heating capacity Indoor D B 26 7 C W B 19 4 C D B 80 F W B 67 F Outdoor D B 35 C D B 95 F Indoor D B 21 1 C D B 70 F Outdoor D B 8 3 C W B 6 1 C D B 47 F W B 43 F 3 Capacity correction factor cur...

Page 16: ...length for type P48 length of piping to farthest indoor unit 0 3 o number of bends in the piping m Length of piping to farthest indoor unit 80m 262ft 5 3 3 Correction of Heating Capacity for Frost and Defrosting If heating capacity has been reduced due to frost formation or defrosting multiply the capacity by the appropriate correction factor from the following table to obtain the actual heating c...

Page 17: ...ar BAND CENTER FREQUENCIES Hz NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 0 0002 μbar BAND CENTER FREQUENCIES Hz NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 PUMY P48NHMU BS PUMY P48NHMU1 BS PUMY P48NHMU2 BS COOLING MODE HEATING 50 SPL dB 52 LINE PUMY P36NHMU ...

Page 18: ...TION Service space Min 1000mm 39 3 8 Min 10mm 3 8 Min 10mm 3 8 FREE Min 150mm 5 29 32 Right trunking hole Knockout 45 1 25 32 40 1 9 16 65 2 9 16 92 3 5 8 27 1 1 16 55 2 3 16 23 29 32 73 2 7 8 63 2 1 2 Rear piping hole Knockout Rear trunking hole Knockout Conduit hole 2 W27 1 1 16 Knockout W 9 2 3 5 8 W 9 2 3 5 8 19 3 4 55 2 3 16 92 3 5 8 40 1 9 16 73 2 7 8 63 2 1 2 23 29 32 27 1 1 16 92 3 5 8 Con...

Page 19: ...space Min 1000mm 39 3 8 Min 10mm 3 8 Min 10mm 3 8 FREE Min 150mm 5 29 32 2 U Shaped notched hole Foundation Bolt M10 W3 8 Conduit hole 2 W27 1 1 16 Knockout 45 1 25 32 Right trunking hole Knockout 45 1 25 32 40 1 9 16 65 2 9 16 92 3 5 8 27 1 1 16 55 2 3 16 23 29 32 73 2 7 8 63 2 1 2 Rear piping hole Knockout Rear trunking hole Knockout Conduit hole 2 W27 1 1 16 Knockout W 9 2 3 5 8 W 9 2 3 5 8 19 ...

Page 20: ...r 63HS Connector High Pressure Switch 63H Connector Low Pressure Switch 63L Connector Fan Motor CNF1 CNF2 Connector Four way Valve 21S4 Connector Bypass Valve SV1 Connector For Option SS Connector For Option CN3D Connector For Option CN3S Connector For Option CN3N Connector For Option CN51 Relay X501 505 M P B Connector To Noise Filter Circuit Board Transmission Power Board CN1 Connector To Multi ...

Page 21: ...NI LI TABN1 TABN2 TABP2 TH8 CB TABN TABP TABP1 TABT DCL RS 52C ACTM TABS 3 1 TH7TH6 TH3 TH4 63HS 63H 63L F1 F500 F2 X504 X503 X502 X501 CN102 WHT CN41 WHT CN40 WHT 4 3 2 1 4 3 2 1 4 3 2 1 M P B P B N F 3 1 CN2 WHT TP1 CN1 WHT 1 2 3 4 M1 M2 S TB3 TO INDOOR UNIT CONNECTING WIRES DC 30V Non polar FOR CENTRALIZED CONTROL DC 30V Non polar M1 M2 S TB7 POWER SUPPLY N AC208V 230V 60Hz MC MULTI B CNF1 WHT ...

Page 22: ...1 505 M NET P B ConnectionTerminal Ground M NET Power Circuit Board TP1 Connection Terminal L N Phase TABS T Connection Terminal DC Voltage TABP1 P2 P Connection Terminal DC Voltage Diode Bridge TABN1 N2 N N F Noise Filter Circuit Board Connection Terminal L Phase LI LO Connection Terminal N Phase NI NO Connection Terminal Ground EI E2 52C Relay 52C IPM DS2 DS3 Reactor Bit Indication 1 Compressor ...

Page 23: ...SW8 SW1 SW7 SW3 SW4 1 SW5 SWU2 SWU1 TRANS LED1 CN2 WHT CN4 WHT LED3 CN3D WHT CN3S RED CN3N BLU CN2 WHT CN1 WHT TP1 BLK CNDC PNK t t t t t MF1 MS 3 1 4 1 1 1 7 3 1 3 1 3 1 3 1 1 3 3 1 3 3 2 2 1 1 2 1 2 2 1 2 1 2 2 2 1 2 1 2 TH7 TH6 TH3 TH4 63HS 63H 63L CNF1 WHT MF2 MS 3 1 7 1 7 7 1 5 CNF2 WHT TH7 6 RED 1 6 CNLVB RED 1 6 4 TH3 WHT TH4 WHT 63HS WHT 63H YLW 63L RED C B LED2 M NET P B 52C BLK 1 3 1 3 1...

Page 24: ...3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 005 A transmission wire must be connected to each refrigerant system outdoor and indoor Set addresses Outdoor unit 051 100 Indoor unit 001 050 Remote controller 101 200 PUMY has no 100ths digit switch The address automatically become 100 if it is set as 01 50 Remote controller Remote controller Remote controller Remote controller 105 Remote con...

Page 25: ...switch 63L Thermistor TH7 Outdoor temperature Discharge thermistor TH4 Heatsink thermistor TH8 Thermistor TH3 Pipe temperature Oil separator Service port Service port 4 way valve Strainer Strainer Strainer Stop valve Stop valve Distributor Compressor Strainer Refrigerant flow in cooling Refrigerant flow in heating Refrigerant pipng specifications dimensions of flared connector Unit mm inch Capilla...

Page 26: ...r unit with the terminal block TB6 for the remote controller RC c Set the address setting switch on outdoor unit P C B as shown below 3 Group operation Multiple indoor units operated together by 1 remote controller Unit Indoor unit IC Outdoor unit OC Remote controller RC Range 001 to 050 051 to 100 101 to 150 Setting Method Use the smallest address of all the indoor unit plus 50 Indoor unit addres...

Page 27: ...mote controller address In this case it should be 152 Three or more remote controller RC cannot be connected to 1 indoor unit The remote controller address is the indoor unit main address plus 100 In this case it should be 101 M1M2 TB5 S 1 2 TB15 01 102 IC Main A B M1M2 TB3 S A B TB7 51 OC S M1M2 TB5 S 1 2 2 TB15 02 IC Sub RC M1M2 TB5 S 1 2 TB15 01 101 RC Main 151 IC M1M2 TB3 S A B TB7 51 OC S M1M...

Page 28: ...he most recent address within the same group to the terminal block on the remote controller RC d Connect together terminals M1 M2 and terminal S on the terminal block for central control TB7 for the outdoor unit OC e DO NOT change the jumper connector CN41 on MULTI controller board f The earth processing of S terminal for the centralized control terminal block TB7 is unnecessary Connect the termin...

Page 29: ...lculation of the maximum length and overall length Never connect together the terminal blocks TB5 for transmission wires for indoor units IC that have been connected to different outdoor units OC Set all addresses to ensure that they are not overlapped M NET remote controller and MA remote controller cannot be connected with the indoor unit of the same group wiring together M1M2 S M1M2S TB7 TB3 IC...

Page 30: ...on polarized 2 wire b Connect terminals 1 and 2 on transmission cable terminal block TB15 for each indoor unit with the terminal block for the MA remote controller MA 3 Group operation Multiple indoor units operated together by 1 remote controller a The same as above b The same as above c In the case of using 2 remote controllers connect terminals 1 and 2 on transmission cable terminal block TB15 ...

Page 31: ...00m 656ft 0 3 1 25 mm2 AWG22 to AWG16 Longest transmission cable length The same as above MA remote controller cable length R7 R8 200m 656ft 0 3 1 25 mm2 AWG22 to AWG16 M1M2 TB5 S 1 2 TB15 00 IC A B M1M2 TB3 S M1M2 TB7 00 OC S M1M2 TB5 S 1 2 TB15 00 IC A B MA MA A B RC The MA remote controller and the M NET remote controller cannot be used together with the indoor unit the of the same group Three ...

Page 32: ... indoor unit IC that has the most recent address within the same group to the terminal block on the remote controller RC d Connect together terminals M1 M2 and terminal S on the terminal block for central control TB7 for the outdoor unit OC e DO NOT change the jumper connector CN41 on MULTI controller board f The earth processing of S terminal for the centralized control terminal block TB7 is unne...

Page 33: ...M2S TB7 IC 51 M1M2 1 2 S TB5 TB15 1 2 TB15 1 2 TB15 1 2 TB15 1 2 TB15 1 2 TB15 1 2 TB15 MA 01 IC M1M2S TB5 03 IC M1M2S TB5 02 IC M1M2S TB5 04 IC M1M2S TB5 05 IC M1M2S TB5 07 IC M1M2S TB5 06 MA MA MA M1M2S TB7 53 OC S Power Supply Unit S G 50A A B A B A B M1M2 M1M2 A B M1M2 S TB3 M1M2 S TB3 DV 12V Longest length via outdoor unit M NET cable L1 L2 L3 L4 and L1 L2 L6 L7 500 m 1640ft 1 25 mm2 AWG16 or...

Page 34: ...oller cable and power supply cable for secure connection Make sure that all switch settings of address or adjustments for special specification systems are correctly settled 2 Safety check With the insulation tester of 500V inspect the insulation resistance Do not touch the transmission cable and remote controller cable with the tester The resistance should be over 1 0 M Do not proceed inspection ...

Page 35: ...two seconds The above steps are the same as when making group settings A Changing to the linked operation unit address display state The display shown in Figure 4 will appear when the a button on the remote control is pressed Displaying the address of the Lossnay unit and linked indoor unit In this situation the indoor unit number will be the lowest address of the group The Lossnay unit will not o...

Page 36: ...ion after resting the w button again Returning to the normal mode after completing the check Simultaneously press the FILTER and k buttons on the remote controller and hold for 2 seconds to return to the normal mode 3 Clearing an address Refer to section 1 regarding the address entry and section 2 regarding checking addresses a In making group settings Turn off the remote controller The procedure ...

Page 37: ... receive signal error no receive signal MA commnication send signal error starting bit derection error MA commnication send error H W error MA commnication receive error Synchronous recovery error Total capacity error Capacity code error Connecting unit number error Address set error Remote controller sensor trouble 0403 1300 4100 4400 5300 5701 Trouble Remarks Detected unit Indoor Outdoor Remote ...

Page 38: ...fan Dirt of indoor heat exchanger Locked indoor fan motor Malfunction of indoor fan motor Defective operation of stop valve Not fully open Clogged or broken pipe Locked outdoor fan motor Malfunction of outdoor fan motor Short cycle of outdoor unit Dirt of outdoor heat exchanger Decreased airflow caused by defective inspection of outside temperature thermistor It detects lower temperature than actu...

Page 39: ...ard Error detection of TH7 TH3 1 Thermistor defective 2 Thermistor input circuit defective in multi controller board Check the refrigerant amount Check the operation condition and refrigerant amount Check the ball valve is fully open 1 Check the ball valve is fully open 2 Check the resistance of discharge temperature thermistor 3 According to Outdoor unit functions set the SW2 and check the high p...

Page 40: ...s above condition outdoor unit in same refrigerant sytem stops Also indoor unit except for Fan or OFF mode unit stop 2502 is displayed on stopped unit Detection timing of forced outdoor unit stop Constantly detected during unit operation and stop Releasing of forced outdoor unit stop Reset power supply of both abnormal indoor unit and its outdoor unit in same refrigerant system Forced outdoor unit...

Page 41: ...s constantly 2 Float switch detects to be in the water for 15 minutes constantly Before Forced outdoor unit stop Condition is met the unit always detects above The indoor unit detecting above stops due to detecting abnormality the outdoor unit in same refrigerant system compressor is inhibited to operate The unit which stops due to detecting abnormality displays 2502 Detection timing of forced out...

Page 42: ...er circuit board Replace outdoor power circuit board Check CNAF wiring The 4220 error history can be confirmed with SW1 No 189 Refer to 9 9 Test point the item of ACTM Check outdoor fan Check air flow path for cooling Check if there is something which causes temperature rise around outdoor unit Upper limit of ambient temperature is 46 115 F Turn off power and on again to check if 4230 is displayed...

Page 43: ... 3minutes after recover of defrosting above mentioned short open are not detected Short 216 421 F or more 1k Open 0 32 F or less 700k Note When outer temperature thermistor TH7 is 5 41 F or less on cooling open detecting is not determined as abnormality Multi controller board input circuit failure Set the SW1 to When the temperature in multi controller board is not an actual temperature replace th...

Page 44: ...on temperature thermistor TH6 When controller detects short open in thermistor during the operation the outdoor unit stops once and restarts operation in 3minutes When the detected temperature is normal at just before of restarting the outdoor unit restarts Connector TH6 contact failure Check whether the connector TH6 in the multi controller board is connected or not When controller detects short ...

Page 45: ... controller detects short open in thermistor during the operation the outdoor unit stops once and restarts operation in 3minutes When the detected temperature is normal at just before of restarting the outdoor unit restarts Connector TH3 contact failure Check whether the connector TH3 in the multi controller board is connected or not When controller detects short open in thermistor at just before ...

Page 46: ...controller board 5110 Heatsink temperature thermistor TH8 internal thermistor of power module When controller detects short open in thermistor during the operation the outdoor unit stops once and restarts operation in 3minutes When the detected temperature is normal at just before of restarting the outdoor unit restarts When controller detects short open in thermistor at just before of restarting ...

Page 47: ...ck the transmitted wave and the noise on the transmission line 6602 Transmission processor H W error 1 shows on the transmission line though the transmission processor transmitted 0 When the wiring for either of the indoor unit the outdoor unit or lossnay transmission line is constructed or polarity is changed with the power supply turned on the transmission waves change in case that the transmiss...

Page 48: ...r to other transmitted data by a defective repeater function which connects and intercepts the transmission of controlling system and centralized control system and it causes abnormal detection Check whether the outdoor unit terminal board for transmission line TB3 and for centralized controller TB7 are connected or not Note Address Attribute displayed on the remote controller shows the controller...

Page 49: ...re is the indoor unit which memorizes the address data cancel the unnecessary address data by the manual setting function of remote controller Line diameter 1 25 A or more However they are limited to the system which sets the group between different refrigerant systems or which fresh master lossnay are connected Decline of transmission line voltage and signal by a number of over connected units Wh...

Page 50: ... indoor unit transmission line Indoor unit or fresh master transmission connector CN2M disconnection Sending receiving signal circuit failure in the indoor unit or fresh master When the cause of displayed address and attribute is on the lossnay side When the lossnay power supply is Off the indoor unit detects abnormality at signal transmitting to the lossnay The indoor unit detects when there is n...

Page 51: ... controller cannot transmit the signal to the transmission path for 6 minutes 2 When the remote controller cannot finish transmitting the signal for 30 times on end Perform a check of the remote controller According to the results perform the following disposals When RC OK is displayed The remote controller is normal Turn off the power supply and turn it on again If HO or PLEASE WAIT is displayed ...

Page 52: ...ally connected up to 6 P36 8 P48 units The indoor unit can be connected up to 8 units Ventilation unit connecting is only 1unit 7101 Capacity code error When the connected indoor unit models cannot be connected 7101 is displayed The indoor unit models is not possible to connect Check the model code registration switch indoor controller board SW2 in the connected indoor unit The indoor unit of 06 5...

Page 53: ... display 1 NG blinks The remote controller s transmitting receiv ing circuit is defective The remote controller must be replaced with a new one Where the remote controller is not defective but cannot be operated Error display 2 E3 6833 or 6832 blinks Transmissionisnotpossible There might be noise or interference on the transmission path or the indoor unit or other remote controllers are defective ...

Page 54: ...d and solution Though the content of operation is displayed on the remote controller some indoor units do not operate is not displayed on the remote controller MA remote controller is not fed PLEASE WAIT keeps being dis played or it isdisplayed periodically PLEASE WAIT is usually dis played about 3 minutes after the power supply of the outdoor unit is on The remote controller does not operate thou...

Page 55: ...ownward blow in cooling in cause the downward blow operation has been continued for one hour At defrosting in heating hot adjusting and thermostat OFF it automatically changes over to horizontal blow Ultra low speed operation is commenced at thermostat OFF Light air automatically change over to set value by time or piping temperature at thermostat ON The fan is to stop during defrosting Fan is to ...

Page 56: ...t s LEV opening at start Fixing the indoor units linear expansion valve opening Fix the operation frequency Change the indoor unit s LEV opening at defrost SWU2 10ths digit 0 1 2 3 4 5 6 7 8 9 SWU1 1s digit 0 1 2 3 4 5 6 7 8 9 SWU2 10ths digit 0 1 2 3 4 5 6 7 8 9 SWU1 1s digit 0 1 2 3 4 5 6 7 8 9 1 ON OFF 2 3 4 5 6 7 8 1 ON OFF 2 3 4 5 6 7 8 1 ON OFF 2 3 4 5 6 1 ON OFF 2 Can be set when off or dur...

Page 57: ...peration 1 2 3 4 5 6 7 8 1 2 3 4 5 6 1 2 Function Normal Switch of current limitation reading in a different way Enable Normal Ignore current sensor abnormality Silent mode Demand Control Selection see next page Change of defrosting control Forced defrost Normal Silent mode Normal Forced defrost Enable Enable Normal Restriction of maximum frequency Enable Normal Ignore refrigerant filling abnormal...

Page 58: ...2 Silent mode Silent mode operation Outdoor controller board DIP SW8 1 SW1 SW2 Function Demand control OFF ON ON OFF ON OFF OFF ON OFF ON ON 100 75 50 0 Normal Stop Distant control board Relay circuit External output adapter PAC SA88HA E Outdoor unit control board Remote control panel Relay circuit External input adapter PAC SC36NA Outdoor unit control board Relay power supply Procure locally Max ...

Page 59: ...re 20 68 F Normal Abnormal Open or short W V U Normal 5 6 5 Abnormal Open or short Measure the resistance between the terminals with a tester In case of open failure check ACTM with a tester as well Refer to 9 9 Test point the item of ACTM Rush current protect resistor RS only PUMY P48NHMU 1 BS Note As for P36NHMU and P48NHMU2 BS rush current protect resistor is mounted on noise filter curcuit boa...

Page 61: ...k wiring Replace multi controller board Check the breaker and main incoming power Check noise filter board Check wiring Check the voltage from the power board to CNDC PNK connector No No Yes lit No No lit Yes No Multi controller board check Yes blow Yes blow Noise filter circuit board CNAC2 RED 208 230V 10 AC LI NI 208 230V 10 AC CNDC PNK Power circuit board 3 1 CNDC PNK LO NO NO LO conv circuit M...

Page 62: ... setting switch SW4 on the multi controller board Replace power board Is the voltage of CNDC PNK on multi board 280 350V DC Check wiring Check power board Check noise filter board Yes Yes Yes No No No Power board check Multi controller board Noise filter circuit board 208 230V 10 AC LI NI 208 230V 10 AC 3 1 CNDC PNK LO NO Power board 280 350V DC 208 230V 10 AC COMP W 7 6 5 4 3 2 1 CN2 WHT U V 10V ...

Page 63: ...er board Check noise filter board No Turn off the incoming power supply and check the resistance of RS1 on the Noise filter board 1 RS1 open Yes open Replace Noise filter board and check 52C relay wirign power board and ACTM No normal 1 As for P48NHMU 1 52C relay and RS are not mounted on noise filter circuit board Noise filter circuit board check Yes 208 230V 10 AC Power circuit board CNDC PNK NO...

Page 64: ...place multi controller board Yes No ACTM check Active Filter Module Power supply 52C relay Bus bar voltage DC COMP Hz ACTM OFF OFF ON OFF ON 0Hz ex 48Hz 0V 290 325V 330 350V ON 208 230V min Hz 290 325V OFF TIME CHART power on starts stop Noise filter circuit board 208 230V 10 AC LI NI 208 230V 10 AC LO NO Power board operate 330 350V DC stop 290 325V DC AC TM Multi controller board 3 1 CNDC PNK 7 ...

Page 65: ...ck TB3 Disconnect the indoor outdoor transmission wiring from the terminal block TB3 and check the voltage between M1 and M2 on TB3 again To check the voltage of the parts on this board with a tester is difficult due to its location Test points are limited No Yes 24 30V DC No Yes 208 230V AC No Yes 24 30V DC M NET transmission power board check Noise filter circuit board 1 3 CNAC1 WHT Multi contro...

Page 66: ...ermistor Thermistor Discharge TH4 0 10 20 30 40 50 20 10 0 10 20 30 40 50 4 14 32 50 68 86 104122 F Temperature Resistance k 500 400 300 200 100 0 25 50 75 100 120 77 122 167 212 248 F Temperature Resistance k t F 32 1 8 t F 32 1 8 0 32 F 180k 25 77 F 50k 50 122 F 17k 70 158 F 8k 90 194 F 4k Thermistor R50 17k 2 B constant 4170 3 Rt 17exp 4170 273 t 323 1 1 Medium temperature thermistor Heatsink t...

Page 67: ... power supply CNDC DC290V 350V 1 3 VCC TEST POINT2 Voltage between pins of C82A DC15V Same as CNF1 2 5 4 VSP TEST POINT3 voltage between pins of C515 and C516 DC0V when stopped DC1 6 5V when operated Same as CNF1 2 6 4 CNF1 2 Connect to fan motors 1 4 DC290V 350V 5 4 DC15V 6 4 DC0 6 5V 7 4 DC15V when stopped DC0 15V pulse when operated VDC TEST POINT1 Voltage between pins of C510 DC290V 350V Same ...

Page 68: ...ontroller circuit board 0 5V DC 2 5 Zero cross signal 0 5V DC 3 4 18V DC 6 5 16V DC 7 5 16V DC CN3 Thermistor TH8 Heatsink CN5 Detection of primary current Connect to the outdoor noise filter circuit board CN5 CNDC 310V DC 1 3 Connect to the outdoor con troller circuit board TABS T Connect to the outdoor noise filter circuit board Voltage among phases 208 230V AC Brief Check of POWER MODULE W Usua...

Page 69: ...d CNAC EI Connect to the earth LI NI Voltage of 208 230V AC is input Connect to the terminal block TB1 CN5 Primary current Connect to the outdoor power circuit board CN5 LO NO Voltage of 208 230V AC is output Connect to the outdoor power circuit board TABS TABT CNAC1 208 230V AC Connect to the M NET power cir cuit board M P B Current tranceformer Primary current ...

Page 70: ...terminal block TB1 CN5 52C driving signal Connect to the outdoor controller circuit board CNLVB LO NO Voltage of 208 230V AC is out put Connect to the outdoor power circuit board CNAC1 208 230V AC Connect to the M NET power circuit board M P B CN5 Primary current Connect to the outdoor power circuit board CN5 RS1 Rush current protect resistor 20 5 10W E2 Connect to the earth 52C Relay Coil resista...

Page 71: ...48NHMU1 PUMY P48NHMU2 PUMY P48NHMU BS PUMY P48NHMU1 BS PUMY P48NHMU2 BS PUMY P36NHMU PUMY P36NHMU BS CN2 Connect to the outdoor multi controller board 1 2 24 30V DC 3 4 24 30V DC CN1 Connect to the outdoor noise filter circuit board 1 3 208 230V AC ...

Page 72: ...t does not operate can not be switched ON and L2 short 100k 1M 1 The breaker operates open W 1 The unit does not operate can not be switched ON 24220Abnormal stop 9 10 No 189 ACTM error display P and L2 short 100k 1M 1 The breaker operates open W 1 The unit does not operate can not be switched ON 24220Abnormal stop 9 10 No 189 ACTM error display P and N1 N2 I short 100k 1M 1 The breaker operates o...

Page 73: ... Io open less than 1 1 The unit does not operate can not be switched ON and L2 short 100k 1M 1 The breaker operates open W 1 The unit does not operate can not be switched ON 24220Abnormal stop 9 10 No 189 ACTM error display P and L2 short 100k 1M 1 The breaker operates open W 1 The unit does not operate can not be switched ON 24220Abnormal stop 9 10 No 189 ACTM error display P and Io short 100k 1M...

Page 74: ... Display on the LED1 2 display data No Delay code 1202 1205 1211 1214 1221 Delay code 1402 1600 1601 4320 4330 4350 Abnormality delay Discharge temperature abnormality Discharge temperature sensor TH4 abnormality Outdoor pipe temperature sensor TH3 abnormality Radiator panel thermistor TH8 abnormality Outside air temperature sensor TH7 abnormality Abnormality delay High pressure abnormality Pressu...

Page 75: ...rmo OFF Heating thermo ON Heating thermo OFF ON OFF Heating Cooling Abnormal Normal DEFROST NO Refrigerant pull back no Excitation current no P96 Autochange over fixed mode CN3N1 2 input P95 Undefined CN3S1 2 input P94 Demand CN3D1 3 input P93 Silent CN3D1 2 input 3 min delay no P97 Autochange over permission CN3N1 3 input Display mode Display on the LED1 2 display data No 10001100 01001100 110011...

Page 76: ...kgf cm 2 TH4 Td C TH6 ET C TH7 Outdoor temp C TH3 Outdoor pipe C TH8 Power module C IC1 TH23 Gas C IC2 TH23 Gas C IC3 TH23 Gas C IC4 TH23 Gas C IC5 TH23 Gas C IC1 TH22 Liquid C IC2 TH22 Liquid C IC3 TH22 Liquid C IC4 TH22 Liquid C IC5 TH22 Liquid C IC1 TH21 Intake C IC2 TH21 Intake C IC3 TH21 Intake C IC4 TH21 Intake C IC5 TH21 Intake C Outdoor SC cooling C 1 2 3 4 7 5 6 8 Display of actual operat...

Page 77: ... C IC2 SC SH C IC3 SC SH C IC4 SC SH C IC5 SC SH C Discharge superheat SHd C Target Pd display heating kgf Target ET display cooling C Target outdoor SC cooling C Target indoor SC SH IC1 C Target indoor SC SH IC2 C Target indoor SC SH IC3 C Target indoor SC SH IC4 C Target indoor SC SH IC5 C TH4 Td F TH3 Outdoor pipe F TH6 ET F TH7 Outdoor temp F High pressure sensor Pd PSIG TH8 Power module F Act...

Page 78: ... delay C IC3 SC SH at time of abnormality delay C IC4 SC SH at time of abnormality delay C IC5 SC SH at time of abnormality delay C IC1 TH21 Intake F IC2 TH21 Intake F IC3 TH21 Intake F IC4 TH21 Intake F IC5 TH21 Intake F IC6 TH21 Intake F IC7 TH21 Intake F IC8 TH21 Intake F IC1 TH23 Gas F IC2 TH23 Gas F IC3 TH23 Gas F IC4 TH23 Gas F IC5 TH23 Gas F IC6 TH23 Gas F IC7 TH23 Gas F IC8 TH23 Gas F ROM ...

Page 79: ...sor data at abnormality kgf TH4 sensor data at time of abnormality C TH6 sensor data at time of abnormality C TH3 sensor data at time of abnormality C TH8 sensor data at time of abnormality C IC1 SC SH at time of abnormality C IC2 SC SH at time of abnormality C IC3 SC SH at time of abnormality C IC4 SC SH at time of abnormality C IC5 SC SH at time of abnormality C 1 2 3 4 5 6 7 8 Display on the LE...

Page 80: ...lay IC8 LEV opening pulse at abnormality delay IC6 SC SH at abnormality delay C IC7 SC SH at abnormality delay C IC8 SC SH at abnormality delay C IC6 LEV opening pulse at time of abnormality IC7 LEV opening pulse at time of abnormality IC8 LEV opening pulse at time of abnormality IC6 SC SH at abnormality C IC7 SC SH at abnormality C IC8 SC SH at abnormality C 1 2 3 4 5 6 7 8 Display on the LED1 2 ...

Page 81: ... polychloroprene sheathed flexible cord For example use wiring such as YZW 6 Install an earth longer than other cables 7 Use copper supply wires Use electric wires over the rating voltage 300V Warning Be sure to use specified wires to connect so that no external force is imparted to terminal connections If connections are not fixed firmly it may cause heating or fire Be sure to use the appropriate...

Page 82: ... AWG 20 to AWG 16 When 10m is exceeded use cable with the same specifications as 10 3 2 Transmission line wiring 10 4 SYSTEM SWITCH SETTING In order to identify the destinations of signals to the outdoor units indoor units and remote controller of the MULTI S series each microprocessor must be assigned an identification number address The addresses of outdoor units indoor units and remote controll...

Page 83: ...calculate the electrical characteristics before applying for a capacity agreement with the local electric power company 10 6 1 Obtaining the electrical characteristics of a CITY MULTI S series system 1 Procedure for obtaining total power consumption 1 Please note that the power consumption of the outdoor unit will vary depending on the total capacity of the selected indoor units Total power consum...

Page 84: ...meter In Section From Branch to Indoor Unit Indoor Unit Piping Diameter Additional Charge Example Outdoor model P48 Indoor 1 P24 A W9 52 3 8 10 m 33 ft a W9 52 3 8 15m 49 ft 2 P15 B W9 52 3 8 10 m 33 ft b W6 35 1 4 10m 33 ft 3 P08 C W9 52 3 8 10 m 33 ft c W6 35 1 4 10m 33 ft 4 P06 d W6 35 1 4 20m 66 ft The total length of each liquid line is as follows W9 52 3 8 A B C a 10 m 10 m 10 m 15 m 45 m 33...

Page 85: ...er In Section From Branch to Indoor Unit Indoor Unit Piping Diameter Refrigerant of 3kg 6 6 lbs equivalent to 50m 165 ft total extended piping length is already included when the outdoor unit is shipped Thus if the total extended piping length is 50m 165 ft or less there is no need to charge with additional refrigerant If the total extended piping length exceeds 50m 165 ft calculate the required a...

Page 86: ...e with additional refrigerant If the total extended piping length exceeds 50m 165 ft calculate the required additional refrigerant charge using theprocedure shown on the right If the calculated additional refrigerant charge is a negative amount do not charge with any refrigerant Additional Charge Example Outdoor model P48 Indoor 1 P24 A W9 52 3 8 10 m 33 ft a W9 52 3 8 15m 49 ft 2 P15 B W9 52 3 8 ...

Page 87: ...ation in which there are no partitions 3 Use the results of calculations 1 and 2 to calculate the refrigerant concentration If the calculation results do not exceed the maximum concen tration perform the same calculations for the larger second and third room etc until it has been determined that nowhere will the maximum concentration be exceeded Indoor unit All refrigerant of this system will leak...

Page 88: ...s Photo 3 3 Removing the electrical parts box 1 Remove the service panel See figure 1 2 Remove the top panel See figure 1 3 Disconnect the connecting wire from terminal block 4 Remove all the following connectors from Multi controller board fan motor thermistor Outdoor pipe thermistor Discharge thermistor Low pressure saturated temp thermistor Outdoor high pressure switch high pressure sensor low ...

Page 89: ...eplacing thermistor Low pressure saturated temp TH6 replace it together with thermistor Outdoor TH7 since they are combined together Refer to No 5 below to remove thermistor Outdoor Thermistor TH6 Electrical parts box 5 Removing the thermistor Outdoor TH7 1 Remove the service panel See figure 1 2 Remove the top panel See figure 1 3 Disconnect the connector TH7 red on the Multi controller board in ...

Page 90: ...ctrical parts box 4 Pull out the thermistor Outdoor pipe TH3 and thermistor Discharge TH4 from the sensor holder Thermistor Discharge TH4 Thermistor Outdoor pipe TH3 Compressor MC 4 wayvalve coil fixing screw 8 Removing the 4 way valve 1 Remove the service panel See figure 1 2 Remove the top panel See figure 1 3 Remove 3 valve bed fixing screws 4 10 and 4 ball valve and stop valve fixing screws 5 ...

Page 91: ... Pull out the lead wire of high pressure switch and low pressure switch 6 Recover refrigerant 7 Remove the welded part of high pressure switch and low pressure switch Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part can be removed easily by remov ing the right side panel Note 3 When installing the high pressure switch and low pressure switch cover them with a wet c...

Page 92: ...move the compressor Note Recover refrigerant without spreading it in the air Photo 11 Compressor MC Valve bed Valve bed fixing screw Separator fixing screw Valve bed fixing screws Compressor fixing nut 13 Removing the accumulator 1 Remove the service panel See figure 1 2 Remove the top panel See figure 1 3 Remove 2 front cover panel fixing screws 5 10 and remove the front cover panel See photo 3 4...

Page 93: ...ing CONDUIT PLATE Including CONDUIT PLATE Including CONDUIT PLATE R01 E04 662 T7W E02 691 T7W E04 667 R01 E18 686 R01 E26 686 R01 E19 130 R01 30L 655 T7W E01 658 R01 E14 658 T7W E00 658 R01 E05 658 T7W E16 661 T7W E06 668 R01 E01 698 R01 E06 641 R01 E00 655 SIDE PANEL L FAN GRILLE FRONT PANEL BASE ASSY BASE ASSY MOTOR SUPPORT HANDLE COVER PANEL FRONT COVER PANEL FRONT COVER PANEL REAR COVER PANEL ...

Page 94: ...94 26 25 27 30 29 28 21 24 23 22 1 2 3 10 11 12 13 14 15 16 17 18 19 20 18 4 7 8 9 5 6 13 2 FUNCTIONAL PARTS PUMY P48NHMU PUMY P48NHMU1 PUMY P48NHMU BS PUMY P48NHMU1 BS ...

Page 95: ...7W E01 233 T7W E09 254 R01 E66 202 R01 E00 201 R01 E65 202 FAN MOTOR PROPELLER FAN NUT CHARGE PLUG COMPRESSOR STOP VALVE BALL VALVE STRAINER ACCUMULATOR OIL SEPARATOR CAPILLARY TUBE H P SENSOR LOW PRESSURE SWITCH BYPASS VALVE SOLENOID COIL BYPASS VALVE SOLENOID COIL 4 WAY VALVE 4 WAY VALVE THERMISTOR HIGH PRESSURE SWITCH HEAT EXCHANGER CONTACTOR TERMINAL BLOCK NOISE FILTER CIRCUIT BOARD MULTI CONT...

Page 96: ...96 26 25 27 29 28 21 24 23 22 1 2 3 10 11 12 13 14 15 16 17 18 19 20 4 7 8 9 5 6 18 14 1 FUNCTIONAL PARTS PUMY P36NHMU PUMY P48NHMU2 PUMY P36NHMU BS PUMY P48NHMU2 BS 14 RoHS PARTS LIST ...

Page 97: ...3 R01 E07 233 T7W E45 716 R01 E18 346 R01 E99 202 R01 E22 255 R01 H00 202 R01 E12 201 R01 E06 239 FAN MOTOR PROPELLER FAN NUT CHARGE PLUG COMPRESSOR STOP VALVE BALL VALVE STRAINER ACCUMULATOR OIL SEPARATOR CAPILLARY TUBE H P SENSOR LOW PRESSURE SWITCH BYPASS VALVE SOLENOID COIL BYPASS VALVE SOLENOID COIL 4 WAY VALVE 4 WAY VALVE THERMISTOR HIGH PRESSURE SWITCH HEAT EXCHANGER CONTROLLER CIRCUIT BOAR...

Page 98: ... G G G G G G G 1 2 1 1 1 2 1 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1 1 1 1 1 T7W E03 662 T7W E03 691 T7W E06 667 R01 E31 686 R01 E27 130 R01 E01 655 R01 E13 658 R01 E11 658 T7W E01 617 T7W E19 661 T7W E08 668 R01 E07 698 R01 E14 641 R01 E02 655 SIDE PANEL L FAN GRILLE FRONT PANEL BASE ASSY MOTOR SUPPORT HANDLE COVER PANEL FRONT COVER PANEL REAR CONDUIT PLATE SIDE PANEL R SERVICE PANEL REAR GUARD TOP PAN...

Page 99: ... G E NUMBER OF BRANCHING POINTS 2 4 CMY Y68 G E 8 BRANCH PIPE Joint Part No DRAIN SOCKET Part No PAC SG61DS E AIR OUTLET GUIDE Part No PAC SG59SG E DRAIN PAN Part No PAC SG64DP E w Need 2 pieces AIR GUIDE Part No PAC SH63AG E w Need 2 pieces ...

Page 100: ... CO LTD Distributed in Jul 2008 No OC366 REVISED EDITION C PDF 7 Distributed in Dec 2007 No OC366 REVISED EDITION B PDF 9 Distributed in Apr 2006 No OC366 REVISED EDITION A PDF 10 Distributed in Jan 2006 No OC366 PDF 10 Made in Japan New publication effective Jul 2008 Specifications subject to change without notice TM ...

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Mitsubishi Electric PUMY-P36NHMU, Technical & Service Manual, Page: 70 / 100

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