Mitsubishi Electronics OC376 manual

TECHNICAL & SER VICE MANUAL SPLIT -TYPE, HEA T PUMP AIR CONDITIONERS CONTENTS 1. TECHNICAL CHANGES ···································2 2. SAFETY PRECAUTION ····································2 3. OVERVIEW OF UNITS······························[...]

2 2 SAFETY PRECAUTION Cautions for units utilizing refrigerant R410A CAUTIONS RELA TED TO NEW REFRIGERANT Use new refrigerant pipes. Make sure that the inside and outside of refrige- rant piping are clean and it has no contamination such as sulfur hazardous for use, oxides, dirt, shredded particles, etc. In addition, use pipes with specified thickn[...]

3 Gravimeter Unit [3] Service tools Use the below service tools as exclusive tools for R410A refrigerant. No. T ool name Specifications 1 Gauge manifold ·Only for R410A ·Use the existing fitting specifications . (UNF1/2) ·Use high-tension side pressure of 5.3MPa·G or over . 2 Charge hose ·Only for R410A ·Use pressure performance of 5.09MPa·G[...]

4 Cautions for refrigerant piping work New refrigerant R410A is adopted for replacement inverter series. Although the refrigerant piping work for R410A is same as for R22, exclusive tools are necessary so as not to mix with different kind of refrigerant. Furthermore as the working pressure of R410A is 1.6 time higher than that of R22, their sizes o[...]

Branching pipe components Branch header (2 branches) Branch header (4 branches) Branch header (8 branches) CMY -Y62-G-E CMY -Y64-G-E CMY -Y68-G-E Outdoor unit Capacity 50% ~130% of outdoor unit capacity *2 T ype 15(VHMA)/20(VHM) ~T ype 140 1~ 8 unit Indoor unit that can be connected Number of units T otal system wide capacity 5HP PUMY -P125VHM PUMY[...]

6 3-2. UNIT SPECIFICA TIONS (2) Method for identifying MUL TI-S model (1) Outdoor Unit ■ Indoor unit < When using Model 80 > ■ Outdoor unit <When using model 125 > (3) Operating temperature range Notes D.B. : Dry Bulb T emperature W .B. : Wet Bulb T emperature w 1. 10~46°C DB : In case of connecting PKFY -P20/P25 type indoor unit. [...]

7 4 SPECIFICA TIONS *3 *3 *3 *3 *3 *3 *3 *3 PUMY -P125VHM PUMY -P125VHMA Cooling Capacity kW 14.0 Heating Capacity kW 16.0 Input (Cool) kW 4.32 Input Current (Cool) A 20.0/19.1/18.3, 20.0 Input (Heat) kW 4.33 Input Current (Heat) A 20.0/19.1/18.3, 20.0 EER (Cool) 3.24 COP (Heat) 3.69 Connectable indoor units (Max.) 8 Max. Connectable Capacity kW 18[...]

8 5 DA T A 5-1. COOLING AND HEA TING CAP ACITY AND CHARACTERISTICS 5-1-1. Method for obtaining system cooling and heating capacity: T o obtain the system cooling and heating capacity and the electrical characteristics of the outdoor unit, first add up the ratings of all the indoor units connected to the outdoor unit (see table below), and then use [...]

9 5-2. ST ANDARD CAP ACITY DIAGRAM 5-2-1. PUMY -P100VHM PUMY -P100VHMA *Before calculating the sum of total capacity of indoor units, please convert the value into the kW model capacity following the formula on 5-1-1. T otal capacity of Capacity ( kW ) P ower Consumption ( kW ) Current ( A ) /220V Current ( A ) /230V Current ( A ) /240V indoor unit[...]

10 T otal capacity of Capacity ( kW ) P ower Consumption ( kW ) Current ( A ) /220V Current ( A ) /230V Current ( A ) /240V indoor units* Cooling Heating Cooling Heating Cooling Heating Cooling Heating Cooling Heating 111 11.10 12.38 3.27 3.62 15.1 16.7 14.5 16.0 13.9 15.3 112 11.20 12.50 3.34 3.66 15.4 16.9 14.8 16.2 14.1 15.5 113 11.22 12.51 3.35[...]

11 T otal capacity of Capacity(kW) Power Consumption(kW) Current(A)/ 220V Current(A)/ 230V Current(A)/ 240V indoor units* Cooling Heating Cooling Heating Cooling Heating Cooling Heating Cooling Heating 70 7.00 7.88 71 7.10 8.00 72 7.20 8.1 1 73 7.30 8.22 74 7.40 8.33 75 7.50 8.44 76 7.60 8.56 77 7.70 8.67 78 7.80 8.78 79 7.90 8.89 80 8.00 9.00 81 8[...]

12 T otal capacity of Capacity(kW) Power Consumption(kW) Current(A)/ 220V Current(A)/ 230V Current(A)/ 240V indoor units* Cooling Heating Cooling Heating Cooling Heating Cooling Heating Cooling Heating 131 13.10 14.88 132 13.20 15.00 133 13.30 15.13 134 13.40 15.25 135 13.50 15.38 136 13.60 15.50 137 13.70 15.63 138 13.80 15.75 139 13.90 15.88 140 [...]

13 5-2-3. PUMY -P140VHM PUMY -P140VHMA *Before calculating the sum of total capacity of indoor units, please convert the value into the kW model capacity following the formula on 5-1-1. T otal capacity of Capacity ( kW ) P ower Consumption ( kW ) Current ( A ) /220V Current ( A ) /230V Current ( A ) /240V indoor units* Cooling Heating Cooling Heati[...]

14 T otal capacity of Capacity ( kW ) P ower Consumption ( kW ) Current ( A ) /220V Current ( A ) /230V Current ( A ) /240V indoor units* Cooling Heating Cooling Heating Cooling Heating Cooling Heating Cooling Heating 146 14.60 16.80 4.92 5.23 22.7 24.2 21.7 23.1 20.8 22.2 147 14.70 16.93 4.97 5.27 23.0 24.4 22.0 23.3 21.1 22.3 148 14.80 17.06 5.02[...]

15 5-3. CORRECTING COOLING AND HEA TING CAP ACITY 5-3-1. Correcting Capacity for Changes in Air Conditions (1) The performance curve charts (Figure 1, 2) show the change ratio of capacity and input (power consumption) according to the indoor and outdoor temperature condition when defining the rated capacity (total capacity) and rated input under th[...]

16 5-3-2. Correcting Capacity for Changes in the Length of Refrigerant Piping (1) During cooling, to obtain the ratio (and the equivalent piping length) of the outdoor units rated capacity and the total in-use indoor capacity , first find the capacity ratio corresponding to the standard piping length from Figure 3, and then multiply by the cooling [...]

17 5-4. NOISE CRITERION CURVES 1.5m 1m MICROPHONE UNIT GROUND 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMA TE THRESHOLD OF HEARING FOR CONTINUOUS NOISE OCT A VE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µ bar) BAND CENTER FREQUENCIES, Hz NC-60 NC-50 NC-40 NC-30 NC-20 NC-70 PUMY -P100VHM PUMY -P100VHMA COOLING MODE HEA[...]

18 6 OUTLINES AND DIMENSIONS 45 40 65 92 27 55 23 73 63 Rear piping hole (Knockout) Rear trunking hole (Knockout) Power supply wiring hole (2- [ 27Knockout) 19 55 92 75 40 73 63 23 27 92 Right piping hole (Knockout) Right trunking hole (Knockout) Power supply wiring hole (2- [ 27Knockout) n92 92 65 45 40 27 55 23 73 63 Front piping hole (Knockout) [...]

19 45 40 65 92 27 55 23 73 63 Rear piping hole (Knockout) Rear trunking hole (Knockout) Power supply wiring hole (2- [ 27Knockout) 19 55 92 75 40 73 63 23 27 92 Right piping hole (Knockout) Right trunking hole (Knockout) Power supply wiring hole (2- [ 27Knockout) n92 92 65 45 40 27 55 23 73 63 Front piping hole (Knockout) Front trunking hole (Knock[...]

20 7 WIRING DIAGRAM SYMBOL NAME SYMBOL NAME SYMBOL NAME SYMBOL NAME TB1 Terminal Block <Power Supply> TB3 Terminal Block <Transmission> TB7 Terminal Block <Centralized Control> MC Motor for Compressor MF1,MF2 Fan Motor 21S4 Solenoid Valve <Four way valve> SV1 Solenoid Valve <Bypass valve> TH3 Thermistor <Outdoor Pip[...]

21 12 34 56 78 [Example] When the compressor and SV1 are turned on during cooling operation. Bit Indication 1 Compressor operated 2 52C 3 21S4 4 SV1 5 (SV2) 67 — — 8 Always lit When fault requiring inspection has occurred The LED alternately indicates the inspection code and the location of the unit in which the fault has occurred. NOTES: 1.Ref[...]

22 8 NECESSAR Y CONDITIONS FOR SYSTEM CONSTRUCTION 8-1. TRANSMISSION SYSTEM SETUP 0 1 2 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 0 1 2 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 9 051 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 056 001 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 010 101 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 [...]

23 8-2. REFRIGERANT SYSTEM DIAGRAM PUMY -P100VHM PUMY -P125VHM PUMY -P140VHM PUMY -P100VHMA PUMY -P125VHMA PUMY -P140VHMA Refrigerant Gas pipe <5/8> Refrigerant Liquid pipe <3/8> Check valve <Low pressure> Accumulator Thermistor <Low pressure saturation temperature> (TH6) Bypass valve (SV1) Capillary tube Check valve <Hig[...]

24 8-3. SYSTEM CONTROL Example for the System • Example for wiring control cables, wiring method and address setting, permissible lengths, and the prohibited items are liste d in the standard system with detailed explanation. A. Example of a M-NET remote controller system (address setting is necessary .) Example of wiring control cables Wiring Me[...]

25 • Name, Symbol and the Maximum Remote controller Units for Connection Name Outdoor unit Indoor unit Symbol OC IC RC Maximum units for connection Permissible Lengths Prohibited items Longest transmission cable length (1.25 mm 2 ) L 1 + L 2 , L 2 + L 3 , L 3 + L 1 [ 200m Remote controller cable length 1. If 0.5 to 1.25 mm 2 R 1 , R 2 [ 10m 2. If[...]

26 B. Example of a group operation system with 2 or more outdoor units and a M-NET remote controller . (Address settings are necessary .) Examples of T ransmission Cable Wiring Wiring Method Address Settings slla. Always use shielded wire when making connections between the outdoor unit (OC) and the indoor unit (IC), as well for all OC-OC, and IC-I[...]

27 • Name, Symbol, and the Maximum Units for Connection Permissible Length Prohibited items • Longest length via outdoor units : L 1 +L 2 +L 3 +L 4, L 1 +L 2 +L 3+ L 5, L 1 +L 2 +L 6 +L 7 [ 500 meters (1.25mm 2 ) • Longest transmission cable length : L 1, L 3 +L 4 , L 3+ L 5 , L 6, L 2 +L 6 , L 7 [ 200 meters (1.25mm 2 ) • Remote controller[...]

28 C. Example of a MA remote controller system (address setting is not necessary .) NOTE : In the case of same group operation, need to set the address that is only main indoor unit. Example of wiring control cables Wiring Method and Address Setting • 1 remote controller for each indoor unit. 1. Standard operation 2. Operation using two remote co[...]

29 Permissible Lengths Prohibited items Longest transmission cable length L 1 + L 2 [ 200m (1.25 mm 2 ) MA remote controller cable length R 1 , R 2 [ 200m (0.3 ~ 1.25 mm 2 ) MA M1 M2 TB5 S1 2 TB15 00 IC AB M1 M2 TB3 S M1 M2 TB7 00 OC S MA M1 M2 TB5 S1 2 TB15 00 IC AB MA M1 M2 TB5 S1 2 TB15 00 IC AB M1 M2 TB3 S M1 M2 TB7 00 OC S M1 M2 TB5 S1 2 TB15 [...]

30 D. Example of a group operation with 2 or more outdoor units and a MA remote controller . (Address settings are necessary .) Examples of T ransmission Cable Wiring A B C E D M1 M2 S TB7 IC (51) M1 M2 1 2 S TB5 TB15 12 TB15 12 TB15 12 TB15 12 TB15 12 TB15 12 TB15 MA (01) IC M1 M2 S TB5 (03) IC M1 M2 S TB5 (02) IC M1 M2 S TB5 (04) IC M1 M2 S TB5 ([...]

31 • Name, Symbol, and the Maximum Units for Connection Permissible Length Prohibited items • Never connect together the terminal blocks (TB5) for transmission wires for indoor units (IC) that have been connected to different outdoor units (OC). • M-NET remote controller and MA remote controller cannot be connected with the indoor unit of the[...]

32 9 TROUBLESHOOTING Operation procedure 1 T urn on the main power supply of all units at least 12 hours before test run. ”HO” appears on display panel for 3 min. 2 12 hours later , press TEST RUN button twice to perform test run. “TEST RUN “ appears on display panel. 3 Press OPERA TION SWITCH button to make sure that air blows out. 4 Selec[...]

33 9-1-2. Special Function Operation and Settings (for M-NET Remote Controller) • It is necessary to perform “group settings” and “paired settings” at making group settings of different refrigerant systems (multiple outdoor unit). (A) Group settings: Enter the indoor unit controlled by the remote controller , check the content of entries,[...]

34 (alternating displa y) "--" will appear in the unit type displa y location when an address has been cleared normally . "88" will appear in the unit type displa y location when an abnor mality has occurred during clear ing. (2) Address check: Refer to section (1) regarding address entry . a) In making group settings: • T urn[...]

35 9-1-3. Countermeasures for Error During T est Run • If a problem occurs during test run, a code number will appear in the temperature display area on the remote controller (or LED on the outdoor unit), and the air conditioning system will automatically cease operating. Determine the nature of the abnormality and apply corrective measures. Chec[...]

36 Display Abnormal point and detecting method Causes Check points 1102 1300 1302 1500 High discharging temperature Abnormal if discharge temperature thermistor (TH4) exceeds 125 : or 110 : continuously for 5 minutes. Abnormal if pressure detected by high pressure sensor and converted to saturation temperature exceeds 40 : during defrosting and dis[...]

37 Display Abnormal point and detecting method Causes Check points Refrigerant shortage When the conditions of below detecting mode 1 or 2 are satisfied during the compressor operation. <Detecting mode 1 > When the below conditions are satisfied completely. 1. Compressor is operating in HEAT mode. 2. Discharge super heat is 80 ; or more. 3. D[...]

38 Display Abnormal point and detecting method Causes Check points 2502 (Drain sensor model) Drain pump (DP) 1 Let drain sensor self-heated, and if temperature rises slightly, as suspensive abnormality operation stops and changes to protect mode of restarting in 3 minutes. 2 Drain pump is abnormal if the condition above is detected during suspensiv[...]

39 Display Abnormal point and detecting method Causes Check points 2502 (Float switch model) 2503 4100 1 Check if drain-up machine works. 2 Check drain function. 3 Check moving part of float switch. 4 Check the value of resistance with the float switch ON/OFF. 5 Change the indoor controller board. 1 Malfunction of drain pump 2 Defective drain Clogg[...]

40 on 2 13 4 5 6 7 8 Display Abnormal point and detecting method Causes Check points 4230 4250 4220 Overvoltage or voltage shortage Abnormal if any of followings are detected during compressor operation; • Decrease of DC bus voltage to 310V • Instantaneous decrease of DC bus voltage to 200V. • Increase of DC bus voltage to 400V. • Decrease [...]

41 5101 Display Abnormal point and detecting method Causes Check points Room temperature thermistor (TH21) When controller detects short (high temp.)/open (low temp.) in thermistor during the operation, the operation stops and the operation changes to protect mode of restarting in 3 minutes. If the thermistor does not recover in 3 minutes, the oper[...]

42 5102 Liquid pipe temperature thermistor (TH22) When the thermistor detects short/open during the operation, the operation stops and the operation changes to protect mode of restarting in 3 minutes. If the thermistor does not recover in 3 minutes, the operation stops due to detecting abnormality. In this time, <5102> is displayed. Then, if [...]

43 5103 Gas pipe temperature thermistor (TH23) When the thermistor detects short/open after 3 minutes-continuous thermo ON during cooling or dry operation, the operation stops and the operation changes to protect mode of restarting in 3 minutes. If the thermistor does not recover in 3 minutes, the operation stops due to detecting abnormality. In th[...]

44 5106 Outdoor temperature thermistor (TH7) Display Abnormal point and detecting method Causes Check points 1) Connector (TH7) contact failure Check whether the connector (TH7) in the multi controller board is connected or not. When controller detects short/open in thermistor during the operation, the outdoor unit stops once and restarts operation[...]

45 5201 Display Abnormal point and detecting method Causes Check points Pressure sensor (63HS) When detected pressure in high-pressure sensor is 1 MPa or less during the operation, the compressor stops and restarts operation in 3 minutes. 1) High-pressure sensor failure Check the high-pressure sensor. When the detected pressure is 1 MPa or less at [...]

46 6603 Transmission bus busy error Over error by collision 1) The transmission processor cannot be transmitted since a short cycle voltage of the noise etc. mixes on the transmission line consecutively. Check whether the transmission line of the indoor unit, fresh master, lossnay and remote controller is connected to the outdoor unit terminal boar[...]

47 6607 No ACK (Acknowledgement) Abnormality which controller of the sending side detects when there is no answer (ACK) from other side though data was transmitted once. It is detected 6 times every 30 seconds continuously. Factor that not related to origin Turn off power supply of outdoor unit, indoor unit fresh master and lossnay for 2 minutes or[...]

48 3) When the cause of displayed address and attribute is on the remote controller side 1) When operating with multi refrigerant system indoor units, the indoor units transmits the signal to the remote controller after the other refrigerant system outdoor unit is turned off or turned on again in 2 minutes, and detects abnormality. (The indoor unit[...]

49 2) When synchronized operation with lossnay in o ther refrigerant system, the indoor units transmit the signal to the lossnay after the lossnay and same refrigerant system outdoor unit are turned off or turned on again in 2 minutes, and detects abnormality. 3) Contact failure of lossnay or indoor unit transmission cable. 4) Indoor unit transmiss[...]

50 6831 6834 6832 6833 Signal reception(Remote controller) Following symptoms are regarded as abnormality. 1) When the remote controller cannot receive the signal from indoor controller normally even once for 3 minutes 2) When the remote controller cannot receive the signal even once for 2 minutes Signal transmission(Remote controller) Following sy[...]

51 7105 Address setting error Address setting of the outdoor unit is wrong. Addresses wrong setting of the outdoor unit. Check the address setting of the outdoor unit. The address should be set in 000 or 51-100. The outdoor unit is not set in 000 or in the range of 51-100. When the setting is out of the range, reset it, turn off power supply of the[...]

52 Transmission data from remote controller Transmission data on transmission path When the number of data errors is "02": · MA remote controller is equipped with the diagnosis function If the air conditioner cannot be operated from the remote controller, diagnose the remote controller as explained below. 1 First, check that the power-on[...]

53 ON/OFF CENTRALLY CONTROLLED ERROR CODE CLOCK ON OFF ˚C CHECK CHECK MODE FILTER TEST RUN FUNCTION ˚C 1Hr. NOT AVAILABLE STAND BY DEFROST FILTER CHECK TEST TEMP. TIMER SET “ ” indicator: Appears when current is carried. (M-NET Remote controller) (1) For M-NET remote controller systems Symptom or inspection code Cause Inspection method and so[...]

54 Symptom Display of remote controller CAUSE Even the cooling (heating) operation selection button is pressed, the indoor unit cannot be operated. The auto vane runs freely . Fan setting changes during heating. Fan stops during heating operation. Fan does not stop while operation has been stopped. No setting of fan while start SW has been turned o[...]

55 Outdoor unit Switch SWU1 1st digit SWU2 2nd digit SW1 Digital Display Switching SW2 Function Switching SW5 Function switching SW3 T rial operation SW4 Model Switching Step Operation in Each Switch Setting ON OFF When to Set Remarks Before turning the power on Before the power is turned on. Rotary switch 1 2 3 4 5 6 1 2 1 2 3 4 5 6 7 8 Function 1[...]

56 <Initial Setting> 1 ON OFF 2 34 567 8 <Initial Setting> <Initial Setting> 1 ON OFF 23 4 5 6 1 ON OFF 2 Outdoor unit Switch SW6 function switching SW7 function switching SW8 function switching Step Operation in Each Switch Setting ON OFF When to Set Remarks Before turning the power on. Before turning the power on. During compres[...]

57 9-6. OUTDOOR UNIT INPUT/OUTPUT CONNECTOR ● State (CN51) ● Auto change over (CN3N) ● Silent Mode / Demand Control (CN3D) CN51 X 5 4 3 A C D 5 E 1 1 3 B G Y L 1 : Error display lamp L 2 : Compressor operation lamp X, Y : Relay (Coil standard of 0.9W or less for DC 12V) F A C D E B G F CN3N X Y SW1 SW2 1 2 3 X, Y : Relay (DC1mA) SW1 SW2 ON He[...]

58 Parts name Check points Disconnect the connector then measure the resistance with a tester . (At the ambient temperature 10 : ~30 : ) Thermistor (TH3) <Outdoor pipe> Thermistor (TH4) <Discharge> Thermistor (TH6) < Low pressure saturated temperature> Thermistor (TH7) <Outdoor> Thermistor (TH8) <Heatsink> Normal 160k [...]

59 Notes · High voltage is applied to the connecter (CNF1, 2) for the fan motor . Give attention to the service. · Do not pull out the connector (CNF1, 2) for the motor with the power supply on. (It causes trouble of the outdoor controller circuit board and fan motor .) Self check Symptom : The outdoor fan cannot turn around. Power supply check(R[...]

60 9-8. HOW TO CHECK THE COMPONENTS <Thermistor feature chart> Low temperature thermistors • Thermistor <Outdoor pipe> (TH3) • Thermistor <Low pressure saturated temperature> (TH6) • Thermistor <Outdoor> (TH7) Thermistor R0 = 15k ' ±3 % B constant = 3480 ± 2% R t =15exp{3480( 273+t – 273 )} 0 : 15k ' 10 :[...]

61 9-9. TEST POINT DIAGRAM Outdoor multi controller board PUMY -P100VHM PUMY -P125VHM PUMY -P140VHM PUMY -P100VHMA PUMY -P125VHMA PUMY -P140VHMA SW2 Pump down 21S4 4-way valve SV1 Bypass valve CNAC Power supply for multi controller board CNS1 Indoor/ outdoor unit connecting wire CN52 T ransmission wire of centralized control CN40,CN41 Centralized c[...]

62 Outdoor power circuit board PUMY -P100VHM PUMY -P125VHM PUMY -P140VHM PUMY -P100VHMA PUMY -P125VHMA PUMY -P140VHMA T ABU/V/W Connect to the compressor (MC) V oltage among phases:10V~180V AC T ABP1/SC-P1 Connect to 52C T ABP2/SC-P2 Connect to the ACTM(P) CN4 Connect to the outdoor controller circuit board (CN4) CN2 Connect to the outdoor controll[...]

63 CNAC2 220-240V AC (Connect to the outdoor controller circuit board (CNAC)) EI Connect to the earth LI, NI V oltage of 220-240V AC is input (Connect to the terminal block(TB1)) CN5 Primary current (Connect to the outdoor power circuit board (CN5)) LO, NO V oltage of 220-240V AC is output (Connect to the outdoor power circuit board) T ABS T ABT CN[...]

64 Outdoor noise filter circuit board PUMY -P100VHMA PUMY -P125VHMA PUMY -P140VHMA CNAC2 220-240V AC (Connect to the outdoor controller circuit board (CNAC)) EI Connect to the earth LI, NI V oltage of 220-240V AC is input (Connect to the terminal block(TB1)) CN5 52C driving sig- nal (Connect to the outdoor controller circuit board(CNL VB)) LO, NO V[...]

65 T ransmission power board PUMY -P100VHM PUMY -P125VHM PUMY -P140VHM PUMY -P100VHMA PUMY -P125VHMA PUMY -P140VHMA 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 : 220–240V AC OC376B--3.qxp 08.1.17 1:16 PM Page 65[...]

66 Active filter module PUMY -P100VHM PUMY -P125VHM PUMY -P140VHM L1, L2 Connect to the DCL(Reactor) Connect to the 52C Connect to the outdoor power circuit board(T ABN1) + – I Not used N2 Connect to the outdoor power circuit board(T ABN2) N1 Non-connect P Connect to the out- door power circuit board(T ABP2) DCL L1 L2 ACTM P I N1 N2 (+) (- ) Load[...]

67 Active filter module PUMY -P100VHMA PUMY -P125VHMA PUMY -P140VHMA + – + DCL L1 L2 ACTM P Io N1 N2 (+) (- ) Load Connection and internal circuit diagram L1, L2 Connect to the DCL(Reactor) Connect to the outdoor power circuit board(T ABP1) N2 Non-connect N1 Non-connect P Connect to the outdoor power circuit board(T ABP2) Connect to the outdoor p[...]

68 9-10. OUTDOOR UNIT FUNCTIONS SW:setting 0....OFF 1....ON 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 SW1 setting 12345678 00000000 10000000 01000000 1 1000000 00100000 10100000 01 100000 1 1 100000 00010000 10010000 01010000 1 1010000 001 10000 101 10000 01 1 10000 1 1 1 10000 00001000 10001000 01001000 1 1[...]

69 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 SW1 setting 12345678 1111 1000 00000100 10000100 01000100 1 1000100 00100100 10100100 01 100100 1 1 100100 00010100 10010100 01010100 1 1010100 001 10100 101 10100 01 1 10100 1 1 1 10100 00001 100 IC1 operation mode IC2 operation mode IC3 operation mode IC4 operation mode IC5 operati[...]

70 64 65 66 69 70 71 72 73 74 75 76 77 78 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 SW1 setting 12345678 00000010 10000010 01000010 10100010 01 100010 1 1 100010 00010010 10010010 01010010 1 1010010 001 10010 101 10010 01 1 10010 00001010 10001010 01001010 1 1001010 00101010 10101010 01 101010 1 1 101010 0001 1010 1001 1010 0101 1010 1 101[...]

71 Display of target subcool step data Displa y of indoor SC/SH data Display of discharge superheat data Displa y of all control target data Displa y of detection data from high-pressure sensor and each thermistor Displa y of actual frequency at time of abnor mality dela y Displa y of fan step number at time of abnormality delay Displa y of opening[...]

72 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 SW1 setting 12345678 00010001 10010001 01010001 1 1010001 001 10001 101 10001 01 1 10001 1 1 1 10001 00001001 10001001 01001001 1 1001001 00101001 10101001 01 101001 1 1 101001 0001 1001 1001 1001 0101 1001 1 101 1001 001 1 1001 101 1 1001[...]

73 170 171 172 173 174 175 176 177 178 179 180 189 192 193 195 196 197 198 199 200 201 202 203 204 206 207 208 209 210 SW1 setting 12345678 01010101 1 1010101 001 10101 101 10101 01 1 10101 1 1 1 10101 00001 101 10001 101 01001 101 1 1001 101 00101 101 101 1 1 101 0000001 1 1000001 1 1 100001 1 0010001 1 1010001 1 01 10001 1 1 1 10001 1 0001001 1 1[...]

74 21 1 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 SW1 setting 12345678 1 100101 1 0010101 1 1010101 1 01 10101 1 1 1 10101 1 0001 101 1 1001 101 1 0101 101 1 1 101 101 1 001 1 101 1 101 1 101 1 01 1 1 101 1 11111 0 11 000001 1 1 100001 1 1 010001 1 1 1[...]

75 10 ELECTRICAL WIRING 10-1. OVERVIEW OF POWER WIRING 10-2. WIRE DIAMETER AND MAIN POWER SWITCH CAP ACITY 10-2-1. Wiring diagram for main power supply 10-2-2. Power supply wire diameter and capacity This chapter provides an introduction to electrical wiring for the CITY MUL TI-S series, including notes concerning power wiring, wiring for control ([...]

76 10-3. DESIGN FOR CONTROL WIRING Please note that the types and numbers of control wires needed by the CITY MUL TI-S series will depend on the remote controllers and whether they are linked with the system. 10-3-1. Selection number of control wires 10-3-3. M-NET Remote controller wiring 10-3-2. Control signal wires Use Remote controller ➔ indoo[...]

77 (3) Method of obtaining system power factor Use the following formula and the total power and current obtained in parts 1 and 2 on the previous page to calculate the system power factor . System power factor = (T otal system power consumption) (T otal system current x voltage) o 100% 10-6-2. Applying to an electric power company for power and to[...]

78 11 REFRIGERANT PIPING T ASKS Line-Branch Method Connection Examples (Connecting to Four Indoor Units) Liquid Line Gas Line Piping Diameter (mm) Model PUMY -P100-140 Liquid Line (mm) Gas Line (mm) { 15.88 { 9.52 Liquid Line Gas Line Liquid Line Gas Line Piping Diameter (mm) Model number 50 or lower 63 to 140 { 6.35 { 12.7 { 9.52 { 15.88 Outdoor U[...]

79 Header-Branch Method Connection Examples (Connecting to Four Indoor Units) Liquid Line Gas Line Piping Diameter (mm) Model { 9.52 { 15.88 Liquid Line Gas Line Liquid Line Gas Line Piping Diameter (mm) Model number 50 or lower 63 to 140 { 6.35 { 12.7 { 9.52 { 15.88 Outdoor Unit First Branch Indoor unit CAP A B C D A+a+b+c+d+e+f [ 120m A+f [ 80m f[...]

80 Method of Combined Branching of Lines and Headers Connection Examples (Connecting to Five Indoor Units) Outdoor unit First branching (branching joint) Branching joint Indoor unit Branching header T o downstream unit Blind caps A B C D E F G A+B+C+a+b+c+d+e is 120 meters or less A+B+b is 80 meters or less B+b is 30 meters or less 30 meters or les[...]

81 Indoor unit The smallest room The second smallest room Outdoor unit V entilation apparatus Indoor unit Opening W all Outdoor unit (Situation in which there are no door openings or in which there are open- ings above and blow doors that occupy at least 0.15% of the floor area) Indoor unit Outdoor unit 1 1-2. PRECAUTIONS AGAINST REFRIGERANT LEAKAG[...]

82 12 DISASSEMBL Y PROCEDURE OPERA TING PROCEDURE PHOTOS & ILLUSTRA TION 1. Removing the service panel and top panel (1) Remove 3 service panel fixing screws (5 ✕ 10) and slide the hook on the right downward to remove the service panel. (2) Remove screws (3 for front, 3 for rear/5 ✕ 10) of the top panel and remove it. Figure 1 T op panel fi[...]

83 OPERA TING PROCEDURE PHOTOS & ILLUSTRA TION Photo 4 (6) Remove electrical parts box fixing screw (4 ✕ 10) and detach the electrical parts box by pulling it upward. The electrical parts box is fixed with 2 hooks on the left and 1 hook on the right. Electrical parts box Electrical parts box fixing screw From the previous page. Photo 5 4. Rem[...]

84 4-way valve coil (21S4) 7. Removing the 4-way valve coil (21S4) (1) Remove the service panel. (See figure 1.) (2) Remove the top panel. (See figure 1.) [Removing the 4-way val ve c oi l] (3) Remove 4-way valve coil fixing screw (M4 ✕ 6). (4) Remove the 4-way valve coil by sliding the coil toward you. (5) Disconnect the connector 21S4 (green) o[...]

85 OPERA TING PROCEDURE PHOTOS 9. Removing bypass valve coil (SV1) and bypass valve (1) Remove the service panel. (See figure 1.) (2) Remove the top panel. (See figure 1.) (3) Remove 3 right side panel fixing screws (5 ✕ 10) in the rear of the unit and remove the right side panel. (4) Remove the bypass valve coil fixing screw (M4 ✕ 6). (5) Remo[...]

86 Accumulator OPERA TING PROCEDURE PHOTOS 12. Removing the compressor (MC) (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) Remove 2 back cover panel fixing screws (5 ✕ 10) and remove the back cover [...]

87 13-1. STRUCTURAL P ARTS PUMY -P125VHM 1 2 3 45 6 7 89 10 11 9 12 15 13 14 16 17 Part No. Part Name Specification No. Wiring Diagram Symbol Recom- mended Q'ty PUMY -P125VHM Remarks (Drawing No.) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 38 1 2 1 1 1 1 1 2 1 1 1 1 1 1 1 1 (DG12F536H10) (BK00C143G80) (BK00C142G15) (DG79R130H01) – T7W E02 662[...]

88 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 P ARTS PUMY -P125VHM OC376B--3.qxp 08.1.17 1:16 PM Page 88[...]

89 Part numbers that are circled are not shown in the figure. Part No. Part Name Specification No. Wiring Diagram Symbol Recom- mended Q , ty Remarks (Drawing No.) Q , ty/set 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 2 R01 E44 2[...]

90 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 14-1. FUNCTIONAL P ARTS PUMY -P100VHM PUMY -P125VHM PUMY -P140VHM 14 RoHS P ARTS LIST OC376B--3.qxp 08.1.17 1:16 PM Page 90[...]

91 Part numbers that are circled are not shown in the figure. Part No. Part Name Specification No. Wiring Diagram Symbol Recom- mended Q'ty Remarks (Drawing No.) Q'ty/set 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 RoHS G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G [...]

92 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 FUNCTIONAL P ARTS PUMY -P100VHMA PUMY -P125VHMA PUMY -P140VHMA OC376B--4.qxp 08.1.17 1:17 PM Page 92[...]

93 Part No. Part Name Specification No. RoHS Wining Diagram Symbol Recom- mended Q'ty Remarks (Drawing No.) Q'ty/set 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 2 T[...]

94 14-2. STRUCTURAL P ARTS PUMY -P100VHM PUMY -P125VHM PUMY -P140VHM PUMY -P100VHMA PUMY -P125VHMA PUMY -P140VHMA 1 2 3 45 6 7 89 10 11 9 12 15 13 14 16 17 Part No. Part Name Specification No. Wiring Diagram Symbol Recom- mended Q'ty PUMY -P100,125,140VHM PUMY -P100,125,140VHMA Remarks (Drawing No.) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Ro[...]

95 15 OPTIONAL P ARTS CMY -Y62-G-E CMY -Y64-G-E NUMBER OF BRANCHING POINTS 2 4 CMY -Y68-G-E 8 BRANCH PIPE (Joint) Part No. DRAIN SOCKET Part No. P AC-SG61DS-E AIR OUTLET GUIDE Part No. P AC-SG59SG-E DRAIN P AN Part No. P AC-SG64DP-E w Need 2 pieces. FIL TER DR YER (For liquid line : [ [ 9.52) Part No. P AC-SG82DR-E w Only for R410A model (Don’t u[...]

HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO100-8310, JAP AN c Copyright 2006 MITSUBISHI ELECTRIC ENGINEERING CO., L TD. Distributed in Jan. 2008 No. OC376 REVISED EDITION-B PDF 9 Distributed in Aug. 2006 No. OC376 REVISED EDITION-A PDF 8 Distributed in Mar . 2006 No. OC376 PDF 9 Made in Japan New publication, effective Jan. 2008[...]