Gebruiksaanwijzing /service van het product 100TMU-A van de fabrikant Mitsubishi Electronics
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AIR CONDITIONERS CITY MUL TI Series Y Models PUHY-80TMU-A, 100TMU-A Ser vice Handbook Service Handbook PUHY-80TMU-A, 100TMU-A HEAD OFFICE MITSUBISHI DENKI BLDG. MAR UNOUCHI TOKY O 100-0005 TELEX J24532 CABLE MELCO TOKY O Issued in March 2004 MEE03K198 Printed in Japan New pub lication effective March 2004.
- Inadequate connection and fastening may generate heat and cause a fire. • Prepare for typhoons and other strong winds and earth- quakes and install the unit at the specified place. - Improper installation may cause the unit to topple and result in injury.
Contents 1 COMPONENT OF EQUIPMENT 1 [1] Appearance of Components 1 [2] Refirigerant Circuit Diagram and Thermal Sensor Standard operation data iger 6 [3] PUHY-80, 100TMU-A ELECTRICAL WIRING DIAGRAM 7 .
Propeller fan Fan motor - 1 -.
Rear Controller Box INV board MAIN board Choke coil(L2) Interrigent Power Module(IPM) Magnetic contactor(52C) Capacitor (C1)(Smoothing capacitor) Gate Amplifier board(G/A board) Diode stack(DS) Power .
MAIN board CNS1 M-NET Transmission (DC30V) CNS2 M-NET Transmission (Centralized control) (DC30V) CN40 M-NET Transmission Power supply CNVCC3 Power source for contorl 1 - 2 DC30 V 1 - 3 DC30 V 4 - 6 DC.
INV board CNDC2 1 - 3 DC310 V CN15V2 Power supply IPM control 1 - 2 DC15 V 5 - 6 DC15 V 9 - 0 DC15 V C - D DC15 V CNL2 Choke coil CNRS2 Serial transmission to MAIN board CNAC2 Power source 1 L2 5 N CN.
G/A board Power board DC310V CNDC1 1 - 3 DC310V CN15V1 Power Supply IPM control 1 - 2 DC15V 5 - 6 DC15V 9 - 0 DC15V C - D DC15V CNDR1 IPM control signal - 5 -.
[2] Refirigerant Circuit Diagram and Thermal Sensor 1 PUHY-80TMU-A, 100TMU-A TH1 TH6 TH7 TH8 TH5 TH2 O/S 63HS CJ1 Comp HEXF HEXB SCC LEV1 ST7 BV2 ST2 Indoor Unit BV1 ST1 CJ2 CV1 ST6 SV1 CP1 SV2 SLEV S.
[3] PUHY-80, 100TMU-A ELECTRICAL WIRING DIAGRAM CNS2 (3P) FN3 FN2 1 2 C CNS2 (3P) FN3 FN2 C 1 R 1 52C DCCT 1 2 3 TH6 TH5 TH8 TH7 TH2 TH1 63HS SW3-10 are OFF for Model 80.
S W U 1 ~ 2 T B 1 Switch unit address set Terminal block power source T B 3 T B 7 Terminal block transmisson GR Ground terminal Terminal block transmisson centralized control L D 1 S W 1 S W 2 ~4 Switch function selection Switch display selection self-diagnosis Luminous diode T H 8 bypass outlet temp.
[4] Standard operation data 1 Cooling operation 75 81 111 157 Discharge (TH1) Heat exchanger outlet (TH5) Inlet Accumulator Outlet Suction (Comp) low pressure saturation temperature (TH2) Shell bottom.
00 87 111 Discharge (TH1) Heat exchanger inlet (TH5) Inlet Accumulator Outlet Suction (Comp) low pressure saturation temperature (TH2) Shell bottom (Comp) Heat exchanger inlet LEV inlet 2 Heating oper.
[5] Function of dip SW and rotary SW (1) Outdoor unit Switch Function Function According to Switch Operation Switch Set Timing When Off When On When Off When On Unit Address Setting For self diagnosis/ operation monitoring – Centralized Control Switch Deletion of connection information.
2. SW4-9 setting Fan characteristics curve:DIPSW4-7ON,230V/60Hz Fan characteristics curve:DIPSW4-7ON,208V/60Hz 0 5 10 15 20 25 30 35 40 45 50 150 160 180 190 200 210 220 230 240 Standard Airflow rate .
(2) Indoor unit DIP SW1, 3 Model 32 40 48 Capacity (model name) code 16 20 25 SW2 setting Model 08 10 12 16 20 24 Capacity (model name) code 45 68 1 0 1 3 SW2 setting ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF Note 1: The shaded part indicates the setting at factory shipment.
Setting of DIP SW4 Setting of DIP SW5 1234 ON OFF ON OFF OFF OFF OFF ON ON OFF OFF ON OFF OFF ON ON –––– OFF OFF ON – PDFY -10 ~ 32 PLFY -12 ~ 24 PLFY -32 ~ 48 PKFY -P-8 PKFY -P-12 PDFY -40,.
TEST RUN [1] Before Test Run (1) Check points before test run 1 Neither refrigerant leak nor loose power source/ transmission lines should be found, if found correct immediately . 2 Confirm that the resistance between the power source terminal block and the ground exceeds 2M Ω by measur- ing it with a DC500V megger .
(3) Check points for test run when mounting options (4) Attention for mounting drain water pump mechanism Check point Local remote controller displays code No. “ 2503 ” , and the mechanism stops. No overflow from drain pan. Drain water comes out by operation of drain pump.
T rouble Not operate. Not cool (at cooling). Not heat (at heating). Not cool, not heat, error stop. Condensation drip in piping. Not cool, not heat, error stop. Water leak, condensation drip in drain piping. Error stop, not operate. Electric shock. Error stop, not operate.
Classification T ransmission line Portion 1 2 3 4 5 6 7 8 Check item Limitation of transmission line length followed? For example, 200m (656ft) or less (total length : 500m (1640ft)) at the farthest. 1.25mm 2 (A WG16) or more transmission line used? (Remote controller 10m (32ft) or less 1.
[2] Test Run Method Operation procedure T urn on universal power supply at least 12 hours before starting → Displaying “ HO ” on display panel for about two minutes Press TEST 1 2 3 4 5 6 7 8 9 .
3 GROUPING REGISTRATION OF INDOOR UNITS WITH M-NET REMOTE CONTROLLER (1) Switch function • The switch operation to register with the remote controller is shown below: Registration/ ordinary mode sel.
(2) Attribute display of unit • At the group registration and the confirmation/deletion of registration/connection information, the type (attribute) of the unit is displayed with two English characters.
(3) Group registration of indoor unit 1) Registration method • Group registration of indoor unit ........................................................................ The indoor unit to be controlled by a remote controller is registered on the remote controller .
2) Method of retrieval/confirmation 2 1 2 • Retrieval/confirmation of group registration information on indoor unit ............... The address of the indoor unit being registered on the remote controller is displayed.
3) Method of deletion • Deletion of group registration information of indoor unit ...................................... [Operation procedure] With the remote controller under stopping or at the display of “ HO ” , continuously press the FILTER + LOUVER button ( + ) at the same time for 2 seconds to change to the registration mode.
4) Deletion of information on address not existing • Deletion of information on address not existing ................................................
4 CONTROL [1] Control of Outdoor Unit (1) Initial processing • When turning on power source, initial processing of microcomputer is given top priority. • During initial processing, control processing corresponding to operation signal is suspended.
– 30 – (4) Frequency control • Depending on capacity required, capacity control change and frequency change are performed to keep constant evaporation temperature (0 ˚ C) in cooling operations, and high pressure (18kg/cm 2 G) in heating operation.
28˚C (82.4 ° F) or more 111 111 157 20 ~ 30˚C (68~86 ° F) 87 87 134 22˚C (71.6 ° F) or less 64 64 87 3 Back up of frequency control by bypass valve During 20Hz operations, frequency is backed up by turning on (opening) bypass valve (SV2).
5) Change in number of operating indoor units during defrosting operations • In case number of operating indoor units changes during defrosting operations, the defrosting operations continue, and control of unit number change is performed after the defrosting operations are finished.
Starts Finish 30 seconds LEV opening before change LEV opening at refrigerant recovery (Indoor unit LEV opening 500 pulse) (10) Refrigerant recovery control Refrigerant recovery is conducted to prevent refrigerant from accumulating in the stopped unit (fan unit), the unit under cooling mode and that with heating thermostat being turned off.
YES NO YES NO YES YES NO NO 2 2 [2] Operation Flow Chart (1) Outdoor unit (Cooling, heating modes) Note: 1 For about 2 minutes after turning on power source, address and group information of outdoor unit, indoor unit, and remo t e controller are retrieved by remote controller, during which "HO" blinks on and off on remote controller.
YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO 1 1 2 (2) Indoor unit (Cooling, heating, dry, and fan modes) Start Breaker turned on Operation SW turned on 1. Protection function self-holding cancelled 2. Indoor unit LEV fully closed Remote controller display extinguished Aux.
YES NO YES YES NO NO (3) Cooling operation Note : 1 Indoor unit fan operates at set notch in cooling operation regardless of thermostat ON/OFF. Cooling operation 4-way valve OFF Indoor unit fan operations Test run start Thermostat ON Note: 1 3-minute restart pre- vention 1.
YES NO YES YES NO NO YES NO (4) Heating operation (Only for PUHY) Normal operations Defrosting operations Stop Test run Heating operation Defrosting operation 4-way valve ON Test run start Thermostat ON 3-minute restart pre- vention Defrosting finish Defrosting finish 4-way valve OFF Note: 1 Note: 2 YES 1 : (6) 4 or 3 : (6) 2 1.
YES NO YES YES NO (5) Dry operation Normal operations Thermostat ON Stop Dry operations 4-way valve OFF Thermostat ON Test run start Inlet temp. > = 18 ˚ C Note: 2 Note: 1 1. Indoor unit fan stop 2. Inverter output 0Hz 3. Indoor unit LEV, oil return LEV, Subcool bypass LEV fully closed 4.
Low pressure shell scroll type with capacity control mechanism Winding resistance: Each phase 0.107 Ω (20 ˚ C) Setting 30kg/cm 2 G OFF R 120 =7.465k Ω B 25/120 =4057 Rt = 7.
Symbol (function) Part code Application Specification Check method Name Solenoid valve Electronic expansion valve Liquid level detection heater Electronic expansion valve Thermistor SV1 (discharge - s.
[4] Resistance of Temperature Sensor Thermistor for low temperature Thermistor R o = 15k Ω ± 3% (TH5 ~ 8) Thermistor R 120 = 7.465k Ω ± 2% (TH1) R t = 15exp {3460 ( - )} R t = 7.
REFRIGERANT AMOUNT ADJUSTMENT 5 Clarify relationship between the refrigerant amount and operating characteristics of CITY MUL TI, and perform service activities such as decision and adjustment of refrigerant amount on the market.
(2) Refrigerant V olume Adjustment Operation 1) Operating Characteristics Refrigerant V olume Characteristic items related to operating characteristics and the refrigerant volume are shown below .
b Check the refrigerant volume by self-diagnosis using the LED. Set the self-diagnosis switch (SW1) as shown below and check the past information (history) concerning the refrigerant volume.
3) Refrigerant Volume Adjustment Mode Operation 1 Procedure TH1 Self-diagnosis Switch TH5 Self-diagnosis Switch TH7 Self-diagnosis Switch Tc Self-diagnosis Switch Using these, judge TH1, Tc - TH5 and Tc - TH7.
Refrigerant adjustment method Note 2 , Ensure that no refrigerant is released into the atmosphere Note 1, Operated using outdoor unit DIP SW3-1 and 3-2.
6 TROUBLESHOOTING [1] Principal Parts Pressure Sensor (1) Judging Failure 1) Check for failure by comparing the sensing pressure according to the high pressure sensor and the pressure gauge pressure.
Solenoid Valve (SV1, SV2) Check if the control board’s output signals and the operation of the solenoid valves match. Setting the self-diagnosis switch (SW1) as shown in the figure below causes the ON signal of each relay to be output to the LED’s.
Outdoor LEV The valve opening angle changes in proportion to the number of pulses. (Connections between the outdoor unit ’ s MAIN board and SLEV, LEV1 (outdoor electronic expansion valve)) Pulse Sig.
Judgment Methods and Likely Failure Mode Caution: The specifications of the outdoor unit (outdoor LEV) and outdoor units (indoor LEV) differ. For this reason, there ar e cases where the treatment contents differ, so follow the treatment specified for the appropriate LEV as indicated in the right column.
Outdoor LEV (SLEV, LEV1) Coil Removal Procedure (configuration) As shown in the figure, the outdoor LEV is made in such a way that the coils and the body can be separated. <Removing the Coils> Fasten the body tightly at the bottom (Part A in the figure) so that the body will not move, then pull out the coils toward the top.
Intelligent Power Module (IPM) The measured v Measure resistances between each terminal of IPM with tester, and use the results for troubleshooting. alues f or troubleshooting are shown in the tab le below . Diode stack P (Restrictions to applicable tester are the same as those of IPM) erform continuity chec k with tester .
1 2 Despite pressing of remote controller switch, operation does not start with no electronic sound. (No powering signal appears.) At about 10 seconds after turning remote controller operation switch ON, the display distinguishes and the operation stops.
3 “ HO ” display on re- mote controller does not disappear and switch is ineffective. Symptom Cause (Without using MELANS) 1) Outdoor unit address is set to “ 00. ” 2) Erroneous address 1 Address setting miss of indoor unit to be coupled with remote controller (Remote controller is not set to - 100.
Symptom Cause Checking method & countermeasure [Generates at registration and confirmation] 1) Erroneous address of unit to be coupled 2) Slipping off of transmission line of unit to be coupled (N.
Transmission Power Circuit (30 V) Check Procedure If “ ” is not displayed by the remote control, investigate the points of the trouble by the following procedure and correct it. DC24~30 V Except the above-mentioned Connector disconnected Except the above-mentioned DC24~30 V Except the above-mentioned DC24~30 V Except the above-mentioned 0.
(6) Investigation of transmission wave shape/noise Control is performed by exchanging signals between outdoor unit, indoor unit and remote controller by M-NET trans- mission. If noise should enter into the transmission line, the normal transmission will be hindered causing erroneous operation.
3) Checking and measures to be taken (a) Measures against noise Check the items below when noise can be confirmed on wave shape or the error code in the item 1) is generated.
4) Treatment of Inverter and Compressor Troubles If the compressor does not work when error codes 4240 or 4250 are detected, determine the point of malfunction by following the steps in the appropriate sections on the pages starting from page 75, then perform the procedures below.
5) Troubleshooting at breaker tripping Check items 1 C heck the breaker capacity. 2 Check the a short circuit or grounding in the electrical sys- tem other than the inverter. 3 Check the resistance between terminals on the terminal block TB1 for power source.
6) Individual Parts Failure Judgment Methods. [Caution at replacement of inverter parts] 1 The IPM and G/A board should be replaced together at the same time. 2 Fully check wiring for incorrect and loose connection. 3 Coat the grease for radiation provided uniformly onto the radiation surface of IPM/diode modules.
Model PUHY-80TMU-A, 100TMU-A To compressor Red White Blue Blue Red To capacitor (C1) board - 59 -.
Check Code List Check Code Check Content 0403 Serial transmission trouble 0900 Trial operation 1102 Discharge temperature trouble 1111 Low pressure saturation temperature sensor trouble (TH2) 1302 Hig.
Check Code Check Content 6606 Communications with transmission processor abnormality 6607 No ACK abnormality 6608 No response abnormality 6831 MA communication, No-reception error 6832 MA communicatio.
(1) Mechanical Checking code Meaning, detecting method Cause Checking method & Countermeasure Serial transmission trouble Discharge temperature trouble ( Outdoor unit ) If serial transmission cannot be established between the MAIN and INV boards 1 .
Checking code Meaning, detecting method Cause Checking method & Countermeasure 1. 2. When –40 ° C or less temp. is detected again (the second time) within 30 minutes afte r stop of outdoor unit, error stop is observed with code N os. "1111" or displayed.
–1.5 Checking code Meaning, detecting method Cause Checking method & Countermeasure Check operations status by actually performing cooling or heating opera- tions. Cooling : Indoor LEV LEV1 Heating : Indoor LEV See Trouble check of LEV and so- lenoid valve .
Checking code Meaning, detecting method Cause Checking method & Countermeasure Check inlet temperature and press. of sensor with LED monitor. See Trouble check of pressure sensor . Once vacuum operation protection is commenced, do not attempt to re - start until taking the measures be- low.
Checking code Meaning, detecting method Cause Checking method & Countermeasure Leakage (water) trouble Drain pump trouble Drain sensor trouble Water leak trouble Water suspension trouble Operation of float switch Check water leaking of humidifier and clogging of drain pan.
Checking code Meaning, detecting method Cause Checking method & Countermeasure Open phase error Reverse phase error Check before the breaker, after the breaker or at the power supply ter- minal blocks TB1, and if there is an open phase, correct the connec- tions.
Checking code Meaning, detecting method Cause Checking method & Countermeasure Power supply sync signal trouble Fan speed trouble (motor trouble) Check before the breaker, after the breaker or at the power supply ter- minal blocks TB1 or TB1A, and if there is an open phase, correct the connections.
Checking code Meaning, detecting method Cause Checking method & Countermeasure 1 If VDC 150 V is detected just before the inverter starts. 2 If VDC 400 V is detected just before the inverter starts. 3 If the voltage of the INV board’s sensor circuit input is what it should not normally be.
Checking code Meaning, detecting method Cause Checking method & Countermeasure If VDC 220 V is detected dur- ing inverter operation. If the cooling fan stays ON for 5 minutes or longer during in- verter operation, and if THHS 92 ° C is detected.
Checking code Meaning, detecting method Cause Checking method & Countermeasure If IDC 103 A is detected con- tinuously for 10 minutes during operation of the inverter after 5 or more seconds have passed since the inverter started. 1) IPM/VDC trouble 2) If IDC 200 A is detected during inverter operation.
Checking code Meaning, detecting method Cause Checking method & Countermeasure If the heat sink temperature (THHS) 60 ° C for 10 minutes or longer just before the inverter starts. If a heat sink temperature of (THHS) 40 ° C is detected just before starting of, and during operation of the inverter.
Checking code Meaning, detecting method Cause Checking method & Countermeasure <Other than THHS> 1 A short in the thermistor or an open circuit was sensed.
Checking code Meaning, detecting method Cause Checking method & Countermeasure 6600 6602 Multiple address error Transmission from units with the same address is detected. Note: The address/attribute shown on remote con- troller indica tes the con- troller which has de- tected error.
6602 Faulty controller of generating unit YES YES Erroneous power source work Erroneous transmission work NO NO YES NO NO NO YES YES YES Transmission line installed while turning power source on? Shut off the power source of outdoor/in- door units/BC controller and make it again.
6606 Communications with transmission processor error Communication trouble be- tween apparatus processor and trans-mission processor. Note: The address/attribute shown on remote con- troller indicates the con- troller which has de- tected error. 1) Data is not properly transmitted due to casual errouneous opera- tion of the generating controller.
Shut down OC unit power source, and make it again. It will return to normal state at an ac- cidental case. When normal state can not be re- covered, check for the 1) ~ 4) of the cause. Shut down both OC and IC power so- urces simultaneously for 5 minutes or more, and make them again.
Checking code Meaning, detecting method No ACK error When no ACK signal is detected in 6 continuous times with 30 second interval by transmission side controller, the transmission side detects error. Note: The address/attribute shown on remote controller indicates the controller not providing the answer (ACK).
Checking code Meaning, detecting method No ACK error When no ACK signal is detected in 6 continuous times with 30 second interval by transmission side controller, the transmission side detects error. Note: The address/attribute shown on remote controller indicates the controller not providing the answer (ACK).
Checking code Meaning, detecting method No ACK error When no ACK signal is detected in 6 continuous times with 30 second interval by transmission side controller, the transmission side detects error. Note: The address/attribute shown on remote controller indicates the controller not providing the answer (ACK).
Checking code 6608 1) At the collision of mutual transmis- sion data when transmission wiring is modified or the polarity is changed while turning the power source on, the wave shape changes detecting error. 2) Repeating of transmission error due to noise.
7102 7105 7111 Connected unit count over Address setting error • Erroneous setting of Outdoor unit address Trouble source : Outdoor unit Remote control sensor error Error not providing the tem- perature designed to remote controller sensor.
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 0000000000 1000000000 0100000000 1100000000 0010000000 1010000000 0110000000 1110000000 0001000000 1001000000 0101000000 1101000000 0011000000 1011.
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 1010100000 0110100000 1110100000 0001100000 1001100000 0101100000 1101100000 0011100000 1011100000 01111000.
52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 0010110000 1010110000 0110110000 1110110000 0001110000 1001110000 0101110000 1101110000 0011110.
87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 11101010 00011010 10011010 01011010 11011010 00111010 10111010 01111010 11111010 00000110 100.
10101110 01101110 11101110 00011110 10011110 01011110 11011110 00111110 10111110 01111110 11111110 00000001 10000001 01000001 11000001 00100001 10100001 01100001 11100001 00010001 10010001 01010001 11.
155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 11011001 00111001 10111001 01111001 11111001.
194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 01000011 11000011 00100011 10100011 01100011 111.
232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 00010111 10010111 01010111 11010111 00110111 10110111 01110111 11110111 00001111 10001111 01001111 11001.
AIR CONDITIONERS CITY MUL TI Series Y Models PUHY-80TMU-A, 100TMU-A Ser vice Handbook Service Handbook PUHY-80TMU-A, 100TMU-A Issued in March 2004 New pub lication effective March 2004.
3400 Lawrenceville Suwanee Road ● Suwanee, Georgia 30024 Toll Free: 800-433-4822 ● Toll Free Fax: 800-889-9904 www.mrslim.com Specifications are subject to ch ange without notice.
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