Page 3 - TECHNICAL CHANGES
3 PUMY-P36NHMU PUMY-P36NHMUR1PUMY-P36NHMU-BS PUMY-P36NHMUR1-BSPUMY-P48NHMU 2 PUMY-P48NHMUR3 PUMY-P48NHMU 2 -BS PUMY-P48NHMUR3-BS • THERMISTOR has been changed. (Discharge thermistor → Compressor thermistor) • Compressor has been changed. PUMY-P48NHMU 1 PUMY-P48NHMU 2 PUMY-P48NHMU 1 -BS PUMY-P48NHMU ...
Page 4 - (3) Determine required Indoor Fans Speed during defrost mode:
4 (4) Determine Fan Airflow setting during Indoor Thermo OFF conditions: a) These settings are done within Indoor DIPSW1-7 and DIPSW1-8, see chart below for options.b) Recommended SW1-7 OFF and SW1-8 ON will determine airflow based on "Setting on the remote controller". Fan speed setting Fan...
Page 6 - SAFETY PRECAUTION; Cautions for units utilizing refrigerant R410A; Use new refrigerant pipes.
6 [1] Cautions for service (1) Perform service after recovering the refrigerant left in unit completely.(2) Do not release refrigerant in the air.(3) After completing service, charge the cycle with specified amount of refrigerant.(4) When performing service, install a filter drier simultaneously. Be...
Page 8 - -3. Cautions for refrigerant piping work; Thickness of pipes
8 2-3. 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 R...
Page 9 - OVERVIEW OF UNITS; Outdoor unit
9 3 OVERVIEW OF UNITS 3-1. UNIT CONSTRUCTION Decorative panel Model Ceiling Ceiling Ceiling Concealed mounted Wall Mounted Concealed 4-way flow 2-way flow 1-way flow built-in Exposed Concealed (Fresh Air)*1 PLFY-P PLFY-P PMFY-P PEFY-P PDFY-P PKFY-P PCFY-P PFFY-P PEFY-P Capacity NCMU-E NBMU-E NLMU-E ...
Page 11 - SPECIFICATIONS; Item
11 4 SPECIFICATIONS PUMY-P36NHMU(-BS) PUMY-P36NHMUR1(-BS) Cooling Capacity Btu/h *3*3*3*3*3*3*3*3 36,000 Heating Capacity Btu/h Btu/h/W W/W 40,000 3.22 14.23/15.74 98.42.93 12.88/14.24 98.9 11.18 4.00 Input (Cool) kW Input Current (Cool)Power factor (Cool) A % % Input (Heat) kW Input Current (Heat)P...
Page 13 - DATA; -1. COOLING AND HEATING CAPACITY AND CHARACTERISTICS
13 5 DATA 5-1. COOLING AND HEATING CAPACITY AND CHARACTERISTICS 5-1-1. Method for obtaining system cooling and heating capacity: To 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...
Page 16 - -3. CORRECTING COOLING AND HEATING CAPACITY; individual capacity at the rated time; total capacity at the rated time; Figure 1. Cooling performance curve; Figure 2. Heating performance curve
16 5-3. CORRECTING COOLING AND HEATING CAPACITY 5-3-1. Correcting Changes in Air Conditions (1) The performance curve charts (Figure 1, 2) show the ratio by the temperature condition change when the rated capacity (total capacity) and the rated input are presumed 1, under standard length (7.6 m [25 ...
Page 17 - Correction factor diagram; Correction factor; Corrected pipe length; MICROPHONE
17 (2) Method for Obtaining the Equivalent Piping Length Equivalent 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: 80 m [262 ft] 5-3-3. Correction of Heating Capacity for Frost and Defrosting If h...
Page 18 - OUTLINES AND DIMENSIONS; Example of Notes; PIPING-WIRING DIRECTIONS
18 6 OUTLINES AND DIMENSIONS PUMY-P48NHMU PUMY-P48NHMU-BS PUMY-P48NHMU 1 PUMY-P48NHMU 1 -BS Unit : mm <inch> Min.500mm <19-1 1/16> Min.500mm <19-1 1/16> Min.150mm <5-29/32> Min.10mm<3/8> Handle Side Air Intake Front piping cover Rear piping cover Air intake Rear Air Int...
Page 20 - WIRING DIAGRAM; Cautions when Servicing
20 7 WIRING DIAGRAM PUMY-P48NHMU PUMY-P48NHMU-BS PUMY-P48NHMU 1 PUMY-P48NHMU 1 -BS 1 2 3 4 5 6 7 8 [Example] When the compressor and SV1 are turned during cooling operation. SYMBOL NAME SYMBOL NAME SYMBOL NAME TB1 Terminal Block <Power Supply> TB3 Terminal Block <Transmission> TB7 Termin...
Page 23 - MODELS
23 CNDC (PIN) CNAF (WHT) CN2 (WHT) CN3 (WHT) CN4 (WHT) CN5 (RED) CNAC2 (RED) E I E2 CN5 (RED) CN52C (BLK) CNAC1 (WHT) LO NO L I N I TABP2 TABU TABW TABN2 TABN1 TABV TH8 IPM CE TABNTABP TABP1 TABT DS3 DS2 TABS RED BLU BLU BLU WHT WHT 52C RED RED BLK BLK BLK WHT RED RED RED RED RED WHT YLW YLW P. B. N...
Page 24 - NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION
24 0 1 2 3 4 5 67 89 0 1 2 3 4 5 67 89 0 1 2 3 4 5 67 89 0 1 2 3 4 5 67 89 0 1 2 3 4 5 67 89 0 1 2 3 4 5 67 89 051 0 1 2 3 4 5 67 89 0 1 2 3 4 5 67 89 056 001 0 1 2 3 4 5 67 89 0 1 2 3 4 5 67 89 010 101 1 0 1 2 3 4 5 67 89 0 1 2 3 4 5 67 89 0 1 2 3 4 5 67 89 0 1 2 3 4 5 67 89 002 102 104 154 11 1 1 ...
Page 28 - Wiring Method; Use the smallest address within the same group of indoor units.
28 B. Example of a group operation system with 2 or more outdoor units and a M-NET remote controller. (Shielding wires and address settings are necessary.) Examples of T ransmission Cable Wiring M1M2 S M1 M2 S TB7 TB3 IC (51) M1 M2 S TB5 RC (01) IC M1 M2 S TB5 (03) IC M1 M2 S TB5 (02) IC M1 M2 S TB5...
Page 29 - • Name, Symbol, and the Maximum Units for Connection; Permissible Length
29 • 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 [1640 ft] (1.25 mm 2 [AWG16]) • Longest transmission cable length : L 1, L 3 +L 4 , L 3+ L 5 , L 6,...
Page 33 - and L
33 • 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 can...
Page 34 - TROUBLESHOOTING
34 9 TROUBLESHOOTING NOTE 1 : If error code appears on remote controller or remote controller malfunction , refer to “ 9-1-3. Countermeasures for Error During Run”.NOTE 2 : During test run operation 2-hours off timer activates automatically and remaining time is on remote controller and test run sto...
Page 37 - as a stop, and not assumed to be abnormal.
37 9-1-3. Countermeasures for Error During Test Run • If a problems 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...
Page 42 - Overvoltage or voltage shortage; Contimued on the next page.
42 on 2 1 3 4 5 6 7 8 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 of input current of outdoor unit to 0.5...
Page 43 - From the previous page.
43 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 ...
Page 44 - Liquid pipe temperature thermistor (TH22)
44 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. ...
Page 48 - Transmission bus busy error; Over error by collision
48 6603 Transmission bus busy error Over error by collision The transmission processor cannot betransmitted 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 ...
Page 49 - Continued on the next page.
49 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 30seconds continuously. Factor that does not related to origin Turn off power supply of outdoor unit,...
Page 53 - · MA remote controller is equipped with the diagnosis function; CHECK
53 Transmission data from remote controllerTransmission 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 exp...
Page 54 - “ ” indicator: Appears when current is carried.; Symptom or inspection code
54 ON/OFF CENTRALLY CONTROLLED ERROR CODE CLOCK ON OFF °C CHECK CHECK MODE FILTER TEST RUNFUNCTION °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 ins...
Page 61 - Check method of multi controller board; Multi controller board
61 Check method of multi controller board Normal LED1 LED2 Fuse checkCheck the fuse on Multi controller board Did the fuse (F500) blow? Replace Multi board and fan motor. *See DC fan check Did the fuse (F1 and F2) blow? Check the SV1 and 21S4 and wiring. 7seg LED is lit? (SW1 : all off) 280V to 350V...
Page 62 - Check method of power board; Power board
62 Check method of power board Normal Is the voltage of main incoming power 208/230V AC ? *Check the breaker and power supply Is the voltage to the compressor(U-V,U-W and V-W) balanced ? *To check the voltage of the parts on this board with a tester is difficult due to its location. Test points are ...
Page 63 - Noise filter circuit board
63 Check method of noise fi lter circuit board Normal Is the voltage of main incoming power 208/230V±10% AC ? *Check the breaker and power supply Is the voltage of CNAC (RED) on multi board CNAC (RED) 208/230V±10% AC? *Check wiring*Replace noise filter board Is the voltage of CNDC(PNK) on multi boar...
Page 64 - Check method of ACTM; A C T M; Circuit giagram
64 Check method of ACTM Normal Is the voltage of main incoming power 208/230V ± -10% AC? *Check the breaker and power supply *To check the voltage of the parts on this board with a tester is difficult due to its location. Test points are limited. Is the voltage of CNDC(PNK) on multi board 330 - 350V...
Page 65 - Check method of M-NET transmission power board; M-NET transmission power board
65 Check method of M-NET transmission power board Normal 24-30V DC ? *Correct the short circuit point on the M-NET transmission line. 24-30V DC ? Is the incoming main voltage208/230V ±10% AC ? *Check wiring*Replace M-NET transmission power board *Check breaker and incoming power supply*Check noise f...
Page 66 - Low temperature thermistors; Medium temperature thermistor
66 0 10 20 30 40 50 -20 -10 0 10 20 30 40 50 -4 -14 32 50 68 86 104 122 °F Temperature Resistance (k ) 500 400 300 200 100 0 25 50 75 100 120 77 122 167 212 248 °F Temperature Resistance (k ) <Thermistor feature chart> Low temperature thermistors • Thermistor <Outdoor pipe> (TH3)• Thermi...
Page 72 - Connection and internal circuit diagram
72 Active filter modulePUMY-P48NHMUPUMY-P48NHMU-BSPUMY-P48NHMU 1 PUMY-P48NHMU 1 -BS DCL L1 L2 ACTM P I N1N2 (+) (- ) Load + Connection and internal circuit diagram L1, L2Connect to the DCL(Reactor) Connect to the 52C Connect to the outdoor power circuit board (TABN1) + – INot used N2Connect to the o...
Page 74 - Abnormality delay
74 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 11000000 00100000 10100000 01 100000 11 100000 00010000 10010000 01010000 11010000 001 10000 101 10000 01 110...
Page 75 - Excitation current/no
75 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 11000100 00100100 10100100 01 100100 11 100100 00010100 10010100 01010100 11010100 001 10100 101 10100 01 11 0100 1111 0100 00001 100 IC1 operation mode IC2 operation mode IC3 ...
Page 76 - control; Display of actual operating frequency
76 64 65 66 67 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 11 000010 10100010 01 100010 11 100010 00010010 10010010 01010010 11 010010 001 10010 101 10010 01 110010 00001010 10001010 01001010 11 001010 00101010 1010...
Page 77 - Display of actual frequency at time of abnormality delay
77 Display of target subcool step data Display of indoor SC/SH data Display of discharge superheat data Display of all control target data Display of detection data from high-pressure sensor and each thermistor Display of actual frequency at time of abnormality delay Display of fan step number at ti...
Page 79 - SET; ab; ACTM error
79 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 192 193 195 196 197 198 199 200 201 202 203 204 206 207 208 209 210 SW1 setting 12345678 1111 01 01 00001 101 10001 101 01001 101 11 001 101 00101 101 10101 101 01 101 101 11 101 101 00 0111 01 1001 1101 0101 1101 1101 11 01 00 1111 01 1...
Page 80 - SW1 setting
80 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 11 00101 1 0010101 1 1010101 1 01 10101 1 11 10101 1 0001 101 1 1001 101 1 0101 101 1 1101 101 1 001 11 01 1 101 1101 1 01 111 01 1...
Page 81 - ELECTRICAL WIRING; 0-2. WIRE DIAMETER AND MAIN POWER SWITCH CAPACITY
81 10 ELECTRICAL WIRING 10-1. OVERVIEW OF POWER WIRING 10-2. WIRE DIAMETER AND MAIN POWER SWITCH CAPACITY 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 MULTI-S series, together with...
Page 82 - Transmission wires; 0-5. EXAMPLE EXTERNAL WIRING DIAGRAM FOR A BASIC SYSTEM; ansmission
82 10-3. DESIGN FOR CONTROL WIRING Please note that the types and numbers of control wires needed by the CITY MULTI-S series will depend on the remote con-trollers 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. Co...
Page 83 - (3) Method of obtaining system power factor; AGREEMENT IS TO BE SIGNED WITH AN ELECTRIC POWER COMPANY; (1) Procedure for obtaining total power consumption; current through
83 (3) Method of obtaining system power factor Use the following formula and the total power and current obtained in parts 1 and 2 in the above table to calculate the system power factor. System power factor = (Total system power consumption) (Total system current x voltage) o 100% 10-6-2. Applying ...
Page 84 - REFRIGERANT PIPING TASKS; Selecting the Refrigerant Branch Kit
84 11 REFRIGERANT PIPING TASKS Line-Branch Method Connection Examples(Connecting to 4 Indoor Units) Liquid Line Gas Line Piping Diameter (mm [inch]) Model PUMY-P36,48 Liquid Line (mm [inch]) Gas Line (mm [inch]) W 15.88 [5/8] W 9.52 [3/8] Liquid Line Gas Line Liquid Line Gas Line Piping Diameter (mm...
Page 87 - 1-2. PRECAUTIONS AGAINST REFRIGERANT LEAKAGE; with the smallest volume; (a) Situation in which there are no partitions; Maximum concentration of; the effective mixing of air.
87 Indoor unit The smallest room The second smallest room Outdoor unit Ventilation apparatus Indoor unit Opening Wall 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 un...
Page 88 - DISASSEMBLY PROCEDURE; Continued to the next page.; OPERATING PROCEDURE; Removing the service panel and top panel; Figure 1; troller board in electrical parts box.; Photo 3; Removing the electrical parts box; ; Photo 1
88 12 DISASSEMBLY PROCEDURE OUTDOOR UNIT :PUMY-P36NHMU(-BS) PUMY-P36NHMUR1(-BS)PUMY-P48NHMU(-BS) PUMY-P48NHMU 1 (-BS) PUMY-P48NHMU 2 (-BS) PUMY-P48NHMUR3(-BS) Continued to the next page. OPERATING PROCEDURE PHOTOS & ILLUSTRATION 1. Removing the service panel and top panel (1) Remove 3 service pa...
Page 89 - Photo 4; Electrical parts box; Photo 5; controller board in the electrical parts box.; Photo 6; Sensor holder
89 OPERATING PROCEDURE PHOTOS & ILLUSTRATION 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 fixin...
Page 90 - troller board in the electrical parts box.; Photo 8; valve; Photo 7; on the Multi controller board in the electrical parts box.; Thermistor; fixing screw; rear of the unit and then remove the right side panel.; ing the right side panel.; Thermistor
90 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 valve coil] (3) Remove 4-way valve solenoid coil fixing screw (M4 × 6).(4) Remove the 4-way valve coil by sliding the coil towar...
Page 91 - Photo 9; rear of the unit and remove the right side panel.; the right side panel.; the right side panel.
91 OPERATING 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 5 right side panel fixing screws (5 × 12) in the rear of the unit and remove the right side panel. (4) Remove the bypass v...
Page 92 - Note: Recover refrigerant without spreading it in the air.
92 Accumulator OPERATING 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 × 12) and remove the front cover panel. (See Photo 3) (4) Remove 2 back cover panel fixing sc...
Page 93 - PARTS LIST
93 1 2 3 4 5 6 7 8 6 9 11 10 12 13 13-1. STRUCTURAL PARTSPUMY-P48NHMU PUMY-P48NHMU-BSPUMY-P48NHMU 1 PUMY-P48NHMU 1 -BS Part No. Part Name Specification No. Wiring Diagram Symbol Recom- mended Q , ty PUMY-P48 NHMU(-BS) PUMY-P48 NHMU 1 (-BS) Remarks (Drawing No.) 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 1 1 ...
Page 95 - Part numbers that are circled are not shown in the figure.
95 Part No. Part Name Specification No. 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 34 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 : 2.5 : 0.8 1000mm [ : (3...
Page 96 - RoHS PARTS LIST
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 PARTSPUMY-P36NHMU(-BS) PUMY-P36NHMUR1(-BS)PUMY-P48NHMU 2 (-BS) PUMY-P48NHMUR3(-BS) 14 RoHS PARTS LIST
Page 97 - RoHS; Wining
97 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 G G G G G G G 2 2 2 2 1 1 1...
Page 98 - Parts of PUMY-P36/48NHMU are set as the same service parts as
98 1 2 3 4 5 6 7 8 6 9 11 10 12 13 14 14-2. STRUCTURAL PARTSPUMY-P36NHMU(-BS) PUMY-P36NHMUR1(-BS)PUMY-P48NHMU 2 (-BS) PUMY-P48NHMUR3(-BS) Part No. Part Name Speci- fication No. RoHS Wiring Diagram Symbol Recom- mended Q’ty PUMY-P36 NHMU(-BS) PUMY-P36 NHMUR1(-BS) PUMY-P48 NHMU 2 (-BS) PUMY-P48 NHMUR3...
Page 99 - OPTIONAL PARTS; NUMBER OF BRANCHING POINTS; DRAIN SOCKET
99 15 OPTIONAL PARTS CMY-Y62-G-ECMY-Y64-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 - TM
HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO100-8310, JAPAN c Copyright 2006 MITSUBISHI ELECTRIC ENGINEERING CO., LTD. Distributed in Dec. 2010 No. OC366 REVISED EDITION-FDistributed in Sep. 2010 No. OC366 REVISED EDITION-E PDF 5Distributed in Nov. 2009 No. OC366 REVISED EDITION-D...
