Page 1: Table Of Contents
R410A SPLIT-TYPE, AIR CONDITIONERS September 2022 No. TCH095 TECHNICAL & SERVICE MANUAL <Outdoor unit> [Model Name] [Service Ref.] PUMY-CP100VKM2-U.TH PUMY-CP100VKM2 Note: • This service manual describes technical data of PUMY-CP125VKM2-U.TH PUMY-CP125VKM2 the outdoor units only. PUMY-CP140VKM2-U.TH PUMY-CP140VKM2 PUMY-CP100YKM2-U.TH PUMY-CP100YKM2 PUMY-CP125YKM2-U.TH...
Page 2: Safety Precaution
SAFETY PRECAUTION 1-1. CAUTIONS RELATED TO NEW REFRIGERANT Cautions for units utilizing refrigerant R410A Precautions during the repair service Preparation before the repair service • Do not perform the work involving the electric parts • Prepare the proper tools. with wet hands. •...
Page 3 Do not use refrigerant other than R410A. Do not pump down the system when a gas leak has been detected. If other refrigerant (R22, etc.) is used, chlorine in refrige- rant can cause deterioration of refrigerant oil, etc. The intake of air or other gases causes abnormally high pressure in the refrigeration cycle, which may cause explosion or injury.
Page 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 times higher than that of R22, their sizes of flared sections and flare nuts are different.
Page 5 3 Tools for R410A (The following table shows whether conventional tools can be used or not.) Tools and materials R410A tools Can R22 tools be used? Can R407C tools be used? Gauge manifold Tool exclusive for R410A Air purge, refrigerant charge and operation check Charge hose Tool exclusive for R410A...
Page 6: Overview Of Units
OVERVIEW OF UNITS 2-1. SYSTEM CONSTRUCTION Outdoor unit PUMY-CP100VKM2 PUMY-CP125VKM2 PUMY-CP140VKM2 PUMY-CP100YKM2 PUMY-CP125YKM2 PUMY-CP140YKM2 Applicable Capacity Type 15 to Type 125 Type 15 to Type 140 indoor unit Number of units 1 to 7 units 1 to 10 units 1 to 12 units...
Page 7 2-2. SYSTEM CONSTRUCTION (BRANCH BOX SYSTEM) Outdoor unit PUMY-CP100VKM2 PUMY-CP125VKM2 PUMY-CP140VKM2 PUMY-CP100YKM2 PUMY-CP125YKM2 PUMY-CP140YKM2 Capacity kW unit: Type 22 to Type 100 Btu unit: Type 09 to Type 30 Applicable Number of units 2 to 7 units 2 to 8 units...
Page 8 2-3. SYSTEM CONSTRUCTION (MIXED SYSTEM) Outdoor unit PUMY-CP100VKM2 PUMY-CP125VKM2 PUMY-CP140VKM2 PUMY-CP100YKM2 PUMY-CP125YKM2 PUMY-CP140YKM2 Capacity CITY MULTI indoor unit Type 15 to Type 125 Type 15 to Type 140 Via branch box kW unit: Type 22 to Type 100 Btu unit: Type 09 to Type 30...
Page 9: System Specifications
2-4. SYSTEM SPECIFICATIONS (1) Outdoor Unit PUMY-CP100VKM2 PUMY-CP125VKM2 PUMY-CP140VKM2 Outdoor unit PUMY-CP100YKM2 PUMY-CP125YKM2 PUMY-CP140YKM2 Capacity Cooling (kW) 11.2 14.0 15.5 Cooling capacity indicates the maximum value at operation under the following condition. *Cooling Indoor : D.B. 27°C/W.B. 19°C Outdoor: D.B. 35°C (2) Method for identifying MULTI-S model Outdoor unit <When using model 125 >...
Page 10: Specifications
0.20 x 1 External static press. 0 Pa/30 Pa Compressor Type × Quantity Twin rotary hermetic compressor × 1 Manufacture Mitsubishi Electric Corporation Starting method Inverter Capacity control % Cooling 29 to 100 Cooling 24 to 100 Cooling 21 to 100...
Page 11 0.20 x 1 External static press. 0 Pa/30 Pa Compressor Type × Quantity Twin rotary hermetic compressor × 1 Manufacture Mitsubishi Electric Corporation Starting method Inverter Capacity control % Cooling 29 to 100 Cooling 24 to 100 Cooling 21 to 100...
Page 12: Data
DATA 4-1. SELECTION OF COOLING UNITS <Cooling> Design Condition Outdoor Design Dry Bulb Temperature 45ºC Total Cooling Load 10.6 kW Room1 Indoor Design Dry Bulb Temperature 27ºC Indoor Design Wet Bulb Temperature 20ºC Cooling Load 4.6 kW Room2 Indoor Design Dry Bulb Temperature 24ºC Indoor Design Wet Bulb Temperature 18ºC...
Page 13: Correction By Temperature
4-2. CORRECTION BY TEMPERATURE The outdoor units have varied capacity at different designing temperature. Using the nominal cooling capacity value and the ratio below, the capacity can be observed at various temperature. <Cooling> Figure 4 Indoor unit temperature correction To be used to correct indoor unit capacity only Indoor Temperature [°CW.B.] 15.0 16.0...
Page 14 Figure 5 Outdoor unit temperature correction To be used to correct outdoor unit capacity only PUMY-CP100VKM2, PUMY-CP100YKM2 Indoor Temperature 24°C W.B 22°C W.B 20°C W.B 16°C W.B 18°C W.B 19°C W.B Outdoor Temperature [°C D.B.] PUMY-CP112VKM2, PUMY-CP112YKM2 PUMY-CP125VKM2, PUMY-CP125YKM2 Indoor Temperature 24°C W.B...
Page 15: Standard Operation Data (Reference Data)
4-3. STANDARD OPERATION DATA (REFERENCE DATA) PUMY-CP100VKM2 PUMY-CP125VKM2 PUMY-CP140VKM2 Operation PUMY-CP100YKM2 PUMY-CP125YKM2 PUMY-CP140YKM2 Indoor 27/19: 27/19: 27/19: Ambient D.B./ temperature W.B. Outdoor No. of connected units Unit Indoor unit No. of units in operation Model — 25 × 4 25 × 1 + 35 × 3 32 ×...
Page 16 4-4. STANDARD CAPACITY DIAGRAM Before calculating the sum of total capacity of indoor units, please convert the value into the kW model capacity following the formula on "4-1. SELECTION OF COOLING UNITS". 4-4-1. PUMY-CP100VKM2 PUMY-CP100YKM2 <Cooling> 16.0 14.0 12.0 10.0 10.0...
Page 17 4-4-2. PUMY-CP125VKM2 PUMY-CP125YKM2 <Cooling> Before calculating the sum of total capacity of indoor units, please convert the value into the kW model capacity following the formula on "4-1. SELECTION OF COOLING UNITS". 18.0 16.0 14.0 12.0 10.0 10.0 12.0 14.0 16.0 18.0 20.0...
Page 18 4-4-3. PUMY-CP140VKM2 PUMY-CP140YKM2 <Cooling> Before calculating the sum of total capacity of indoor units, please convert the value into the kW model capacity following the formula on "4-1. SELECTION OF COOLING UNITS". 20.0 18.0 16.0 14.0 12.0 10.0 10.0 12.0 14.0 16.0 18.0...
Page 19 Figure 6 to 9. Then multiply by the cooling capacity from Figure 4 and 5 in "4-2. CORRECTION BY TEMPERATURE" to obtain the actual capacity. (1) Capacity Correction Curve Figure 6 PUMY-CP100VKM2 PUMY-CP100YKM2 <Cooling>...
Page 20 Figure 8 PUMY-CP140VKM2 PUMY-CP140YKM2 <Cooling> Total capacity of indoor unit 1.00 0.95 0.90 0.85 11.6 0.80 15.5 20.2 0.75 0.70 0.65 0.60 0.55 0.50 Piping equivalent length (m) (2) Method for Obtaining the Equivalent Piping Length Equivalent length = (length of piping to farthest indoor unit) + (0.3 o number of bends in the piping) (m) TCH095 TCH095.indd 20 TCH095.indd 20...
Page 21: Noise Criterion Curves
4-6. NOISE CRITERION CURVES PUMY-CP100VKM2 PUMY-CP125VKM2 MODE SPL(dB) LINE MODE SPL(dB) LINE COOLING COOLING PUMY-CP100YKM2 PUMY-CP125YKM2 SILENT SILENT SUPER SILENT 1 SUPER SILENT 1 SUPER SILENT 2 SUPER SILENT 2 NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30...
Page 22: Outlines And Dimensions
OUTLINES AND DIMENSIONS Unit: mm TCH095 TCH095.indd 22 TCH095.indd 22 5/9/2565 14:42:12 5/9/2565 14:42:12...
Page 23: Wiring Diagram
WIRING DIAGRAM PUMY-CP100VKM2-U.TH PUMY-CP100VKM2-U-BS.TH PUMY-CP125VKM2-U.TH PUMY-CP125VKM2-U-BS.TH PUMY-CP140VKM2-U.TH PUMY-CP140VKM2-U-BS.TH TCH095 TCH095.indd 23 TCH095.indd 23 5/9/2565 14:42:13 5/9/2565 14:42:13...
Page 24 PUMY-CP100YKM2-U.TH PUMY-CP100YKM2-U-BS.TH PUMY-CP125YKM2-U.TH PUMY-CP125YKM2-U-BS.TH PUMY-CP140YKM2-U.TH PUMY-CP140YKM2-U-BS.TH TCH095 TCH095.indd 24 TCH095.indd 24 5/9/2565 14:42:13 5/9/2565 14:42:13...
Page 25: Necessary Conditions For System Construction
NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION 7-1. TRANSMISSION SYSTEM SETUP TCH095 TCH095.indd 25 TCH095.indd 25 5/9/2565 14:42:14 5/9/2565 14:42:14...
Page 26: Refrigerant System Diagram
7-2. Special Function Operation and Settings for M-NET Remote Controller (M-NET remote controller cannot be connected with a refrigerant system which includes branch box.) Refer to 12-9. "SPECIAL FUNCTION OPERATION SETTING" 7-3. REFRIGERANT SYSTEM DIAGRAM Check valve Thermistor (TH7) <Ambient> <High pressure>...
Page 27 7-4. REFRIGERANT SYSTEM DIAGRAM (WHEN USING BRANCH BOX) Condenser/evaporator Room temperature temperature thermistor (TH5 or RT12) thermistor (TH1 or RT11) Check valve Thermistor (TH7) Thermistor (TH6) <Ambient> <High pressure> <Suction pipe> Service port Solenoid Strainer valve (SV1) High pressure Stop valve Thermistor (TH3) sensor (63HS) <Outdoor liquid pipe>...
Page 28 ■ Pipe size (Branch box-indoor unit) Indoor unit series Model number Liquid pipe (mm) Gas pipe (mm) 22–42 (09–13) ø6.35 ø9.52 50 (18) ø6.35 ø12.7 M series or S series 60 (24) ø6.35 ø15.88 71 (26) ø9.52 ø15.88 35–50 (18) ø6.35 ø12.7 P series...
Page 29: System Control
7-5. SYSTEM CONTROL 7-5-1. Example for the System • Example for wiring control cables, wiring method and address setting, permissible lengths, and the constraint items are listed in the standard system with detailed explanation. A. Example of an M-NET remote controller system (address setting is necessary.) Example of wiring control cables Wiring Method and Address Setting 1.
Page 30 • Name, Symbol and the Maximum Remote controller Units for Connection Name Symbol Maximum units for connection — Outdoor unit M-IC Refer to "2-1. SYSTEM CONSTRUCTION." M-NET control Indoor unit M-NET remote M-NET RC Maximum 2 M-NET RC for 1 indoor unit, Maximum 12 M-NET RC for 1 OC controller Permissible Lengths Constraint items...
Page 31 B. Example of a group operation system with 2 or more outdoor units and an M-NET remote controller. (Address settings are necessary.) (51) M-IC M-IC M-IC M-IC (01) (02) (05) (06) M1 M2 S M1 M2 S M1 M2 S M1 M2 S M1 M2 S M1 M2 S...
Page 32 • Name, Symbol, and the Maximum Units for Connection • Maximum line distance via outdoor unit : L [ 500 m (1.25 mm²) • Indoor/outdoor transmission line Maximum distance : L [ 200 m (1.25 mm²) • Remote controller cable length : R [ 10 m (0.5 to 1.25 mm²) If the length exceeds 10 m, use a 1.25 mm²...
Page 33 C. Example of an 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 CITY MULTI series indoor unit. Example of wiring control cables Wiring Method and Address Setting 1.
Page 34 Permissible Lengths Constraint items Indoor/outdoor transmission line Maximum distance: (00) M-IC M-IC [ 200 m (1.25 mm²) (00) (00) MA remote controller cable length: [ 200 m (0.3 to 1.25 mm²) TB15 TB15 M1 M2 S M1 M2 S M1 M2 S M1 M2 S (00) M-NET RC...
Page 35 D. Example of a group operation with 2 or more outdoor units and an MA remote controller. (Address settings are necessary.) M-IC M-IC M-IC M-IC (51) (01) (02) (05) (06) TB15 TB15 TB15 TB15 M1 M2 S M1 M2 S M1 M2 S M1 M2 S M1 M2 S...
Page 36 • Name, Symbol, and the Maximum Units for Connection Maximum line distance via outdoor unit (M-NET cable): L and L [ 500 m (1.25 E more) Indoor/outdoor transmission line Maximum distance (M-NET cable): L and L and L and L [ 200 m (1.25 E or more) MA Remote controller cable length: m and m...
Page 37 E. Example of a system using Branch Box and A-Control indoor unit TB3A TB5/TB15 Branch Box A-IC MA-RC (01) (51) TB3B TB5/TB15 M1 M2 S M1 M2 S A-IC MA-RC (02) TB3C TB5/TB15 A-IC MA-RC (03) (01) TB3D A-IC WL-RC (04) TB3E A-IC...
Page 38 • Name, Symbol, and the Maximum Units for Connection Maximum line distance via outdoor unit (M-NET cable): L [ 500 m (1.25 E or more) Indoor/outdoor transmission line Maximum distance (M-NET cable): L [ 200 m (1.25 E or more) Indoor transmission line Maximum distance (A-Control cable): L [ 25 m (1.5 E) Remote controller cable length: m...
Page 39 F. Example of a system using Branch Box, A-Control indoor unit, and CITY MULTI series indoor unit. TB3A TB5/TB15 Branch Box A-IC MA-RC (01) (51) TB3B TB5/TB15 M1 M2 S M1 M2 S A-IC MA-RC (02) TB3C TB5/TB15 A-IC MA-RC (03) (01) TB3D...
Page 40 • Name, Symbol, and the Maximum Units for Connection Maximum line distance via outdoor unit (M-NET cable): L [ 500 m (1.25 E or more) Indoor/outdoor transmission line Maximum distance (M-NET cable): L and L [ 200 m (1.25 E or more) Indoor transmission line Maximum distance (A-Control cable): L [ 25 m (1.5 E) Remote controller cable length: m...
Page 41: Troubleshooting
TROUBLESHOOTING 8-1. CHECK POINTS FOR TEST RUN 8-1-1. Procedures before test run (1) Before a test run, make sure that the following work is completed. • Installation related : Make sure that the panel of cassette type and electrical wiring are done. Otherwise electrical functions like auto vane will not operate normally.
Page 42 8-1-2. Countermeasures for Error During Test Run • If a problem occurs during test run, a code number will appear 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. Detected Unit Check Check...
Page 43 Check code Serial communication error 0403 (Ed) Abnormal points and detection methods Causes and checkpoints If serial communication between the outdoor multi controller circuit board Wire breakage or contact failure of connector CN2 or and outdoor power circuit board is defective. Malfunction of communication circuit to power circuit board on outdoor multi controller circuit board Malfunction of communication circuit on outdoor...
Page 44 Check code Compressor temperature trouble 1102 (U2) Chart 1 of 2 Abnormal points and detection methods Causes and checkpoints (1) If TH4 falls into following temperature conditions; Malfunction of stop valve Over-heated compressor operation caused by ●exceeds 105 [221°F] continuously for 5 minutes shortage of refrigerant ●exceeds 115 [239°F] Defective thermistor...
Page 45 Check code Compressor temperature trouble 1102 (U2) Chart 2 of 2 ●Diagnosis of defects Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards. Diagnosis Remedy Continued from the previous page. Disconnect the thermistor wiring to check the resistance.
Page 46 Check code High pressure (63H/63HS) trouble or 1302 High compressor temperature (TRS) trouble (UE) Chart 1 of 4 Abnormal points and detection methods Causes and checkpoints (1) High pressure abnormality (63H operation) 1. Defective operation of stop valve (not fully open) Abnormal if 63H operates(*) during compressor operation.
Page 47 Check code High pressure (63H/63HS) trouble or 1302 High compressor temperature (TRS) trouble (UE) Chart 2 of 4 ●Diagnosis of defects Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards. Diagnosis Remedy Continued from the previous page. Is the indoor unit filter clogged? Clean the filter.
Page 48 Check code High pressure (63H/63HS) trouble or 1302 High compressor temperature (TRS) trouble (UE) Chart 3 of 4 ●Diagnosis of defects Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards. Diagnosis Remedy Continued from the previous page. Is the resistance detected? Replace the TH7.
Page 49 Check code High pressure (63H/63HS) trouble or 1302 High compressor temperature (TRS) trouble (UE) Chart 4 of 4 ●Diagnosis of defects Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards. Diagnosis Remedy Continued from the previous page. Is the resistance detected? Replace the SV1.
Page 50 Check code Superheat due to low discharge temperature trouble 1500 (U7) Chart 1 of 2 Abnormal points and detection methods Causes and checkpoints If the discharge superheat is continuously detected −15ºC [−27°F](*) or less for Disconnection or loose connection of TH4 5 minutes even though the indoor LEV has minimum open pulse after the Defective holder of TH4 compressor starts operating for 10 minutes.
Page 51 Check code Superheat due to low discharge temperature trouble 1500 (U7) Chart 2 of 2 ●Diagnosis of defects Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards. Diagnosis Remedy Continued from the previous page. Is the resistance detected? Replace the indoor LEV.
Page 52 Check code Refrigerant shortage trouble 1501 (U2) Chart 1 of 2 Abnormal points and detection methods Causes and checkpoints (1) When all of the following conditions have been satisfied: Defective operation of stop valve (not fully open) 1. The compressor is in operation. Defective thermistor 2.
Page 53 Check code Refrigerant shortage trouble 1501 (U2) Chart 2 of 2 ●Diagnosis of defects Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards. Diagnosis Remedy Continued from the previous page. Is the resistance detected? Replace the thermistor. Check the 63HS voltage.
Page 54 Check code Closed valve in cooling mode 1501 (U2) Abnormal points and detection methods Causes and checkpoints If stop valve is closed during cooling operation. Outdoor liquid/gas valve is closed. Malfunction of outdoor LEV (LEV-A) (blockage) When both of the following temperature conditions have been satisfied for 20 minutes or more during cooling operation.
Page 55 Check code Freeze protection of branch box or indoor unit 1503 (P6) Abnormal points and detection methods Causes and checkpoints The purpose of the check code is to prevent indoor unit from freezing or Wrong piping connection between indoor unit and dew condensation which is caused when a refrigerant keeps flowing into branch box the unit in STOP.
Page 56 Check code Compressor current interruption (Locked compressor) 4100 (UF) Chart 1 of 2 Abnormal points and detection methods Causes and checkpoints If overcurrent of DC bus or compressor is detected before 30 seconds Closed stop valve since the compressor starts operating. Decrease of power supply voltage Looseness, disconnection or converse of compressor wiring connection...
Page 57 Check code Compressor current interruption (Locked compressor) 4100 (UF) Chart 2 of 2 ●Diagnosis of defects Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards. Diagnosis Remedy Continued from the previous page. Set the model selection switch correctly, Are they set properly? then restart.
Page 58 Check code Compressor overcurrent interruption 4210 (UP) Chart 1 of 2 Abnormal points and detection methods Causes and checkpoints If overcurrent of DC or the compressor is detected within 30 seconds since Closed outdoor stop valve the compressor starts operating. Decrease of power supply voltage Looseness, disconnection or reverse phase of compressor wiring connection...
Page 59 Check code Compressor overcurrent interruption 4210 (UP) Chart 2 of 2 ●Diagnosis of defects Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards. Diagnosis Remedy Continued from the previous page. Connect the compressor wiring (U, V and Are they connected properly? W phase) properly, then turn the power back ON.
Page 60 Check code Voltage shortage /Overvoltage/PAM error/L1 open phase/ 4220 Primary current sensor error/Power synchronization signal error (U9) Chart 1 of 2 Abnormal points and detection methods Causes and checkpoints If any of following symptoms are detected; Decrease/increase of power supply voltage L1 open-phase (Y model only) ●Decrease of DC bus voltage to 200 V(\/model), 350 V (Y model) Primary current sensor failure...
Page 61 Check code Voltage shortage/overvoltage/PAM error/L1 open phase/primary 4220 current sensor error/power synchronization signal error (U9) Chart 2 of 2 ●Diagnosis of defects Make sure to turn the power OFF before connecting/disconnecting The black square (■) indicates a switch position. any connectors, or replacing boards. Diagnosis Remedy Continued from the previous page.
Page 62 Check code Heat sink temperature trouble 4230 (U5) Abnormal points and detection methods Causes and checkpoints If TH8 detects a temperature outside the specified range during Blocked outdoor fan compressor operation. Malfunction of outdoor fan motor Blocked airflow path Thermistor <Heat sink> TH8: Rise of ambient temperature Characteristic defect of thermistor...
Page 63 Check code Power module trouble or overcurrent trouble 4250 (U6) Abnormal points and detection methods Causes and checkpoints If overcurrent of DC bus or compressor is detected 30 seconds after the Closed outdoor stop valve compressor starts operating. To determine the source of abnormality, Decrease of power supply voltage either the compressor or the power module, drive the power module Disconnection, looseness or conversed connection...
Page 64 Check code Fan trouble (Outdoor unit) 4400 (U8) Abnormal points and detection methods Causes and checkpoints If no rotational frequency is detected, or detected a value outside the Malfunction of fan motor specified range during fan motor operation. Disconnection of CNF connector Defective outdoor multi controller circuit board ●Diagnosis of defects Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards.
Page 65 Check code Compressor temperature thermistor (TH4) open/short 5101 (U3) <Detected in outdoor unit> Abnormal points and detection methods Causes and checkpoints If TH4 detects to be open/short. Disconnection or contact failure of connectors (The open/short detection is disabled for 10 minutes after compressor Characteristic defect of thermistor starts.) Defective outdoor multi controller circuit board...
Page 66 Check code Suction pipe temperature thermistor (TH6) open/short 5102 (U4) <Detected in outdoor unit> Abnormal points and detection methods Causes and checkpoints If TH6 detects to be open/short. Disconnection or contact failure of connectors (The open/short detection is disabled during 10 seconds to 10 minutes Characteristic defect of thermistor after compressor starts.) Defective outdoor multi controller circuit board...
Page 67 Check code Outdoor liquid pipe temperature thermistor (TH3) open/short 5105 (U4) Abnormal points and detection methods Causes and checkpoints If TH3 detects to be open/short. Disconnection or contact failure of connectors (The open/short detection is disabled during 10 seconds to 10 minutes Characteristic defect of thermistor after compressor starts.) Defective outdoor multi controller circuit board...
Page 68 Check code Ambient temperature thermistor (TH7) open/short 5106 (U4) Abnormal points and detection methods Causes and checkpoints If TH7 detects to be open/short Disconnection or contact failure of connectors Open: −40°C [−40°F] or less Characteristic defect of thermistor Short: 90°C [194°F] or more TH7: Thermistor <Ambient>...
Page 69 Check code HIC pipe temperature thermistor (TH2) open/short 5109 (U4) Abnormal points and detection methods Causes and checkpoints If TH2 detects to be open/short. Disconnection or contact failure of connectors Open: −40°C [−40°F] or less Characteristic defect of thermistor Short: 90°C [194°F] or more TH2: Thermistor <HIC pipe>...
Page 70 Check code Heat sink temperature thermistor (TH8) open/short 5110 (U4) Abnormal points and detection methods Causes and checkpoints If TH8 (Internal thermistor) detects to be open/short. Disconnection or contact failure of connectors Open: −34.8°C [−30.6°F] or less Characteristic defect of thermistor Short: 102°C [215.6°F] or more Defective outdoor multi controller circuit board TH8: Thermistor <Heat sink>...
Page 71 Check code High pressure sensor (63HS) trouble 5201 (F5) Abnormal points and detection methods Causes and checkpoints When the detected pressure in the High pressure sensor is 1kgf/F or Defective High pressure sensor less during operation, the compressor stops operation and enters into Decrease of internal pressure caused by gas an anti-restart mode for 3 minutes.
Page 72 Check code Low pressure sensor (63LS) trouble 5202 (F3) Abnormal points and detection methods Causes and checkpoints When the detected pressure in the Low pressure sensor is −2.3kgf/F Defective Low pressure sensor or less, or 23.1kgf/F or more during operation, the compressor stops Decrease of internal pressure caused by gas operation with a check code <5202>.
Page 73 Check code Primary current error 5300 (UH) Abnormal points and detection methods Causes and checkpoints If the detected current sensor input value (primary current) during Decrease/trouble of power supply voltage compressor operation is outside the specified range. Disconnection of compressor wiring Input sensor trouble on outdoor power circuit board ●Diagnosis of defects Make sure to turn the power OFF before connecting/disconnecting...
Page 74 Check code Duplex address error 6600 (A0) Abnormal points and detection methods Causes and checkpoints If 2 or more units with the same address exist. There are 2 units or more with the same address in their controller among outdoor unit, indoor unit, Fresh Master, Lossnay or remote controller Noise interference on indoor/outdoor connectors ●Diagnosis of defects...
Page 75 Check code Transmission processor hardware error 6602 (A2) Abnormal points and detection methods Causes and checkpoints If the transmission line shows "1" although the transmission processor A transmitting data collision occurred because of a transmitted "0". wiring work or polarity change has performed while the power is ON on either of the indoor/outdoor unit, Fresh Master or Lossnay Malfunction of transmitting circuit on transmission...
Page 76 Check code Transmission bus BUSY error 6603 (A3) Abnormal points and detection methods Causes and checkpoints An abnormality when no transmission status caused by transmitting The transmission processor is unable to transmit due data collision continues for 8 to 10 minutes. to a short-cycle voltage such as noise is mixed on An abnormality when data cannot be output on the transmission line the transmission line.
Page 77 Check code Signal communication error with transmission processor 6606 (A6) Abnormal points and detection methods Causes and checkpoints If the data of unit/transmission processor were not normally transmitted. Accidental disturbance such as noise or lightning surge If the address transmission from the unit processor was not normally Hardware malfunction of transmission processor transmitted.
Page 78 Check code No ACK error 6607 (A7) Chart 1 of 4 Abnormal points and detection methods Causes and checkpoints Represents a common error detection The previous address unit does not exist since An abnormality detected by the sending side controller when receiving the address switch was changed while in electric no ACK from the receiving side, though signal was once sent.
Page 79 Check code No ACK error 6607 (A7) Chart 2 of 4 Abnormal points and detection methods Causes and checkpoints The cause of displayed address and attribute is on the Fresh Master While the indoor unit is operating with multi side. refrigerant system Fresh Master, an abnormality An abnormality detected by the indoor unit if receiving no ACK when is detected when the indoor unit transmits signal...
Page 80 Check code No ACK error 6607 (A7) Chart 3 of 4 Note: ●Diagnosis of defects When the address of the outdoor unit is displayed as abnormal, the Make sure to turn the power OFF before connecting/disconnecting outdoor circuit board may be faulty. If the unit is not restored after any connectors, or replacing boards.
Page 81 Check code No ACK error 6607 (A7) Chart 4 of 4 ●Diagnosis of defects Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards. Diagnosis Remedy Continued from the previous page. Apply the correct kind of transmission line, Is the correct kind of transmission then perform the procedure 1.
Page 82 Check code No response frame error 6608 (A8) Abnormal points and detection methods Causes and checkpoints Abnormal if receiving no response command while already received ACK. Continuous failure of transmission due to noise, etc The sending side searches the error in 30 seconds interval for 6 times Decline of transmission voltage/signal caused by continuously.
Page 83 Check code MA communication receive error 6831, 6834 (E0/E4) Chart 1 of 2 Abnormal points and detection methods Causes and checkpoints Detected in remote controller or indoor unit: Contact failure of remote controller wirings Irregular Wiring When the main or sub remote controller cannot receive signal from (A wiring length, number of connecting remote indoor unit which has the "0"...
Page 84 Check code MA communication receive error 6831, 6834 (E0/E4) Chart 2 of 2 ●Diagnosis of defects Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards Diagnosis Remedy Continued from the previous page. Refer to the chapter "Electrical Work".
Page 85 Check code MA communication send error 6832 6833 (E3/E5) Chart 1 of 2 Abnormal points and detection methods Causes and checkpoints Detected in remote controller or indoor unit. There are 2 remote controllers set as main. Malfunction of remote controller sending/receiving circuit Malfunction of sending/receiving circuit on indoor controller board...
Page 86 Check code MA communication send error 6832 6833 (E3/E5) Chart 2 of 2 ●Diagnosis of defects Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards Diagnosis Remedy Continued from the previous page. Refer to the chapter "Electrical Work".
Page 87 Check code Total capacity error 7100 (EF) Abnormal points and detection methods Causes and checkpoints When the total capacity of connected indoor units exceeds the specified The total of number on connected indoor unit model capacity (130% of the outdoor unit capacity), check code <7100> is names exceeds the specified capacity level.
Page 88 Check code Capacity code error 7101 (EF) Abnormal points and detection methods Causes and checkpoints When a connected indoor unit is incompatible, a check code <7101> is The model name of connected indoor unit (model code) displayed. is read as incompatible. The connectable indoor units are: ·...
Page 89 Check code Connecting excessive number of units 7102 and branch boxes (EF) Abnormal points and detection methods Causes and checkpoints When the connected indoor unit exceeds the limit, a check code <7102> is Connecting more indoor units and branch boxes than displayed.
Page 90 Check code Address setting error 7105 (EF) Chart 1 of 2 Abnormal points and detection methods Causes and checkpoints The address setting of connected unit is wrong. There is a unit without correct address setting in the range specified in "7-5. SYSTEM CONTROL". ●Diagnosis of defects Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards.
Page 91 Check code Address setting error 7105 (EF) Chart 2 of 2 ●Diagnosis of defects Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards. Diagnosis Remedy <M-NET RC (main)> Check whether the M-NET RC (main) address is set in 000, or in the range of 101 to 150.
Page 92 Check code Incompatible unit combination error 7130 (EF) Abnormal points and detection methods Causes and checkpoints When the connected indoor unit is not compatible with the outdoor unit, Connecting indoor unit(s) which is not authorized to the outdoor unit detects the error at startup. connect to the outdoor unit.
Page 93 8-2. THE FOLLOWING SYMPTOMS DO NOT REPRESENT TROUBLE (EMERGENCY) Symptom Display of remote controller CAUSE Even the cooling (heating) "Cooling (Heating)" blinks The indoor unit cannot cool (Heat) if other indoor units are operation selection button is heating (Cooling). pressed, the indoor unit cannot be operated.
Page 94 8-3. INTERNAL SWITCH FUNCTION TABLE The black square (■) indicates a switch position. TCH095 TCH095.indd 94 TCH095.indd 94 5/9/2565 14:42:46 5/9/2565 14:42:46...
Page 95 ■ The black square ( ) indicates a switch position. TCH095 TCH095.indd 95 TCH095.indd 95 5/9/2565 14:42:46 5/9/2565 14:42:46...
Page 96 TCH095 TCH095.indd 96 TCH095.indd 96 5/9/2565 14:42:46 5/9/2565 14:42:46...
Page 97 8-4. OUTDOOR UNIT INPUT/OUTPUT CONNECTOR State (CN51) A Distant control board E Lamp power supply B Relay circuit F Procure locally C External output adapter (PAC-SA88HA-E) G Max. 10m CN51 D Outdoor unit control board Error display lamp Compressor operation lamp X, Y: Relay (coil rating: ≤...
Page 98: How To Check The Parts
8-5. HOW TO CHECK THE PARTS Parts name Checkpoints Thermistor (TH2) Disconnect the connector then measure the resistance with a tester. <HIC pipe> (At the ambient temperature 10 to 30:) Thermistor (TH3) Normal Abnormal <Outdoor liquid pipe> Thermistor (TH4) 160 to 410 k" <Compressor>...
Page 99 Check method of DC fan motor (fan motor/outdoor multi controller circuit board) 1. Notes: · High voltage is applied to the connector (CNF1) for the fan motor. Pay attention to the service. · Do not pull out the connector (CNF1) for the motor with the power supply on. (It causes trouble of the outdoor multi controller circuit board and fan motor.) 2.
Page 100 8-6. HOW TO CHECK THE COMPONENTS <Thermistor feature chart> Low temperature thermistors • Thermistor <HIC pipe> (TH2) • Thermistor <Outdoor liquid pipe> (TH3) • Thermistor <Suction pipe> (TH6) • Thermistor <Ambient> (TH7) Thermistor R0 = 15 k" ± 3 % B constant = 3480 ±...
Page 101 <HIGH PRESSURE SENSOR> • Comparing the High Pressure Sensor Measurement and Gauge Pressure By configuring the digital display setting switch (SW1) as shown in the figure below, the pressure as measured by the high pressure sensor appears on the LED1 on the control board. The figure at left shows that the switches 1 through 4 are set to ON and 5 through 8 are set to OFF.
Page 102 <LOW PRESSURE SENSOR> • Comparing the Low Pressure Sensor Measurement and Gauge Pressure By configuring the digital display setting switch (SW1) as shown in the figure below, the pressure as measured by the low pressure sensor appears on the LED1 on the control board. The figure at left shows that the switches 1 through 4 are set to ON and 5 through 8 are set to OFF.
Page 103: Test Point Diagram
8-7. TEST POINT DIAGRAM Outdoor multi controller circuit board <CAUTION> TEST POINT 1 is high voltage. Model selection Function selection CN51 External signal Test run Manual defrost Model selection output CN102 Function selection Connect to the M-NET P.B SWP2 board) Display selection SWP1 CN40,CN41...
Page 104 Outdoor power circuit board PUMY-CP100VKM2-U.TH PUMY-CP100VKM2-U-BS.TH PUMY-CP125VKM2-U.TH PUMY-CP125VKM2-U-BS.TH PUMY-CP140VKM2-U.TH PUMY-CP140VKM2-U-BS.TH Brief Check of POWER MODULE If they are short-circuited, it means that they are broken. Measure the resistance in the following points (connectors, etc.). Connect to the outdoor controller circuit 1.
Page 105 Outdoor power circuit board Brief Check of POWER MODULE If they are short-circuited, it means that they are broken. PUMY-CP100YKM2-U.TH Measure the resistance in the following points (connectors, etc.). PUMY-CP125YKM2-U.TH PUMY-CP140YKM2-U.TH 1. Check of DIODE MODULE PUMY-CP100YKM2-U-BS.TH L1 - P1 , L2 - P1 , L3 - P1 , L1 - N1 , L2 - N1 , L3 - N1 PUMY-CP125YKM2-U-BS.TH 2.
Page 106 M-NET power circuit board Connect to the outdoor multi controller circuit board (CN102) 1–2: 24–30 V DC 3–4: 24–30 V DC Connect to the electrical parts box • Connect to the outdoor noise filter circuit board (CNAC1) (Y) • Connect to the outdoor power circuit board (CNAC1) (V) 1–3: 220–240 V AC TCH095...
Page 107 Outdoor noise filter circuit board PUMY-CP100VKM2-U.TH PUMY-CP100VKM2-U-BS.TH PUMY-CP125VKM2-U.TH PUMY-CP125VKM2-U-BS.TH PUMY-CP140VKM2-U.TH PUMY-CP140VKM2-U-BS.TH LI1, LI2, LI3, NI POWER SUPPLY LI1-LI2/LI2-LI3/LI3-LI1: 400 V AC input LI1-NI/LI2-NI/LI3-NI: 230 V AC input (Connect to the terminal block (TB1)) Connect to the elec- trical parts box...
Page 108 8-8. OUTDOOR UNIT INFORMATION DISPLAY SW: setting 0..OFF 1..ON TCH095 TCH095.indd 108 TCH095.indd 108 5/9/2565 14:42:56 5/9/2565 14:42:56...
Page 109 TCH095 TCH095.indd 109 TCH095.indd 109 5/9/2565 14:42:56 5/9/2565 14:42:56...
Page 110 TCH095 TCH095.indd 110 TCH095.indd 110 5/9/2565 14:42:57 5/9/2565 14:42:57...
Page 111 TCH095 TCH095.indd 111 TCH095.indd 111 5/9/2565 14:42:57 5/9/2565 14:42:57...
Page 112 TCH095 TCH095.indd 112 TCH095.indd 112 5/9/2565 14:42:57 5/9/2565 14:42:57...
Page 113 TCH095 TCH095.indd 113 TCH095.indd 113 5/9/2565 14:42:57 5/9/2565 14:42:57...
Page 114 TCH095 TCH095.indd 114 TCH095.indd 114 5/9/2565 14:42:57 5/9/2565 14:42:57...
Page 115 TCH095 TCH095.indd 115 TCH095.indd 115 5/9/2565 14:42:57 5/9/2565 14:42:57...
Page 116: Electrical Wiring
ELECTRICAL WIRING This chapter provides an introduction to electrical wiring for the CITY MULTI series, together with notes concerning power wir- ing, wiring for control (transmission wires and remote controller wires), and the frequency converter. 9-1. OVERVIEW OF POWER WIRING Use a separate power supply for the outdoor unit and indoor unit.
Page 117 <When power is supplied separately> PUMY-CP•VKM2 series ～ /N 220-230-240 V, 50 Hz ～ /N 220-230-240 V, 50 Hz ～ /N 220 V, 60 Hz ～ /N 220 V, 60 Hz S1/S2/S3 S1/S2/S3 PUMY-CP•YKM1 series S1/S2/S3 S1/S2/S3 S1/S2/S3 S1/S2/S3 3N～380-400-415 V, 50Hz L1/L2/L3/N 3N～380 V, 60 Hz A Switch (Breakers for Wiring and Current Leakage)
Page 118 9-2-2. Cross section area of Wire for Main Power and ON/OFF capacities <Outdoor unit> When power is supplied to outdoor unit and branch box separately Minimum Wire Cross-sectional area (mm²) Power Supply Breaker for Wiring * Breaker for Current Leakage Model Main Cable Branch...
Page 119: Wiring Transmission Cables
9-3. WIRING TRANSMISSION CABLES 9-3-1. Types of control cables 1. Wiring transmission cables Types of transmission cables Shielding wire CVVS, CPEVS, or MVVS Cable diameter More than 1.25 mm Remarks Within 200 m 2. M-NET Remote control cables Types of remote control cables Shielding wire (2-core) CVVS, CPEVS, or MVVS Cable diameter 0.5 to 1.25 mm...
Page 120 9-4. SYSTEM SWITCH SETTING In order to identify the destinations of signals to the outdoor unit, indoor units, and remote controller of the CITY MULTI series, each microprocessor must be assigned an identification number (address). The addresses of outdoor unit, indoor units, and remote controller must be set using their settings switches.
Page 121 9-6. METHOD FOR OBTAINING ELECTRICAL CHARACTERISTICS WHEN A CAPACITY AGREEMENT IS TO BE SIGNED WITH AN ELECTRIC POWER COMPANY The electrical characteristics of connected indoor unit system for air conditioning systems, including the CITY MULTI series, depend on the arrangement of the indoor and outdoor units. First read the data on the selected indoor and outdoor units and then use the following formulas to calculate the electrical characteristics before applying for a capacity agreement with the local electric power company.
Page 122: Refrigerant Piping Tasks
REFRIGERANT PIPING TASKS 10-1. REFRIGERANT PIPING SYSTEM Line-Branch Method Connection Examples (Connecting to 4 Indoor Units) Line-Branch Method Connection Examples (Connecting to 4 Indoor Units) Outdoor Unit First Branch Indoor unit Total Piping Length A+B+C+a+b+c+d [ 120 m Total Piping Length A+B+C+a+b+c+d [ 120 m Permissible Farthest Piping Length...
Page 123 Header-Branch Method Connection Examples Header-Branch Method (Connecting to 4 Indoor Units) Header-Branch Method Connection Examples Connection Examples (Connecting to 4 Indoor Units) (Connecting to 4 Indoor Units) Outdoor Unit First Branch Outdoor Unit Indoor unit First Branch Permissible Total Piping Length A+a+b+c+d [ 120 m Indoor unit Total Piping Length...
Page 124 Note: Pipe re-branching after the header branching is not possible. Note: Pipe re-branching after the header branching is not possible. Method of Combined Branching of Lines and Method of Combined Branching of Headers Lines and Headers Connection Examples Connection Examples Method of Combined Branching of Lines and (Connecting to 5 Indoor Units) (Connecting to 5 Indoor Units)
Page 125 10-2. REFRIGERANT PIPING SYSTEM (WHEN USING BRANCH BOX) AOutdoor unit BBranching joint CBranch box DIndoor unit Branch box Method Connection Examples (Connecting to 8 Indoor Units) Total piping length A + B + C + a + b + c + d + e + f + g + h [ 120 m Farthest piping length (L) A + C + h [ 80 m ( A + C [ 55 m, h [ 25 m) Permissible...
Page 126 A Outdoor Unit B First joint C Branch header (CMY) D Branch box E CITY MULTI Indoor unit F M, S, P series Indoor unit Mixed Method Connection Examples (Connecting to 1 Branch box) Total piping length A+B+C+D+E+a+b+c+d+e+f+g+h+i+j [ 120 m Farthest piping length (L1) A+E+a or A+B+C+e [ 70 m Farthest piping length.
Page 127 A Outdoor Unit B First joint C Branch header (CMY) D Branch box E CITY MULTI Indoor unit F M, S, P series Indoor unit Mixed Method Connection Examples (Connecting to 2 Branch boxes) Total piping length A+B+C+D+E+a+b+c+d+e+f+g+h+i+j+k [ 120 m Farthest piping length (L1) A+E+a [ 70 m Farthest piping length.
Page 128: Precautions Against Refrigerant Leakage
10-3. PRECAUTIONS AGAINST REFRIGERANT LEAKAGE 10-3-1. Introduction R410A refrigerant of this air conditioner is non-toxic and non-flammable but leaking of large amount from an indoor unit into the room where the unit is installed may be deleterious. To prevent possible injury, the rooms should be large enough to keep the R410A concentration specified by ISO 5149-1 as follows.
Page 129: Disassembly Procedure
DISASSEMBLY PROCEDURE : Indicates the visible parts in the photos/figures. : Indicates the invisible parts in the photos/figures. PHOTOS/FIGURES OPERATING PROCEDURE 1. Removing the service panel and the top panel Photo 1 (1) Remove 3 service panel fixing screws (5 × 12), and slide Top panel fixing screws Top panel the hook on the right downward to remove the service...
Page 130 PHOTOS/FIGURES OPERATING PROCEDURE 4. Disassembling the electrical parts box (VKM type) Photo 5 Multi controller circuit M-NET power board* board (MULTI.B.) (1) Disconnect all the connectors on the multi controller cir- (M-NET P.B.) cuit board. (2) Remove 2 screws 1 which fix the plate holding the mul- ticontroller circuit board and the electrical parts box.
Page 131 PHOTOS/FIGURES OPERATING PROCEDURE 6. Removing the thermistor <HIC> (TH2), the thermistor Photo 10 <Compressor> (TH4) and Compressor protector (TRS) (1) Remove the service panel. (See Photo 1) (2) Remove the top panel. (See Photo 1) (3) Disconnect the following connectors on the controller circuit board in the electrical parts box.
Page 132 PHOTOS/FIGURES OPERATING PROCEDURE 10. Removing the solenoid valve coil (SV1) and the solenoid Photo 14 valve (1) Remove the service panel. (See Photo 1) High pressure (2) Remove the top panel. (See Photo 1) sensor (3) Disconnect the connector SV1 (Gray) on the multi controller circuit board in the electrical parts box.
Page 133 PHOTOS/FIGURES OPERATING PROCEDURE Photo 16 13. Removing the compressor (MC) (1) Remove the service panel. (See Photo 1.) (2) Remove the top panel. (See Photo 1.) (3) Remove the electrical parts box. (Refer to procedure 3) (4) Remove the valve bed by removing the following screws: •...
Page 134: Remote Controller
REMOTE CONTROLLER 12-1. REMOTE CONTROLLER FUNCTIONS <PAR-41MAA> Controller interface The functions of the function buttons change depending on the screen. Refer to the button function guide that appears at the bottom of the LCD for the functions they serve on a given screen. When the system is centrally controlled, the button function guide that corresponds to the locked button will not appear.
Page 135 Display The main display can be displayed in two different modes: ˝Full˝ and ˝Basic˝. The initial setting is ˝Full˝. To switch to the ˝Basic˝ mode, change the setting on the Main display setting. (Refer to operation manual included with remote controller.) <Full mode>...
Page 136 Menu structure Main menu Press the button. Move the cursor to the desired item with the buttons, and press the button. Operation Vane · 3D i-See · Vent. (Lossnay) High power Comfort Manual vane angle 3D i-See sensor Vertical air direction Horizontal air direction Timer menu Timer...
Page 137 Continue from the previous page. Maintenance menu Error information Filter information Cleaning Auto descending panel Descending operation Descending adjustment Service menu Test run menu Test run Drain pump test run Maintenance information Collect model names and serial No. Model name input Serial No.
Page 138 Main menu list Main Setting and display items Setting details menu Operation Vane · 3D i-See · Vent. Vane: Use to set the vertical air direction. (Vane.Vent. (Lossnay)) Louver: Use to set the horizontal air direction. 3D i-See sensor: This setting is available only for the air conditioners that support easy setting function of motion sensing air direction.
Page 139 Main Setting and display items Setting details menu Initial Basic Main/Sub When connecting 2 remote controllers, one of them needs to be designated as setting setting a sub controller. Clock Use to set the current time. Daylight Set the daylight saving time. saving time Administrator The administrator password is required to make the settings for the following...
Page 140 <PAR-SL97A-E> Controller interface Transmission area Transmission indicator Remote controller display Timer indicator *For explanation purposes, all of the items that appear in the display are shown. *All items are displayed when the Reset button is pressed. Operation areas ON/OFF button Temperature setting buttons Fan Speed button (Changes fan speed) Timer Off button...
Page 141 <PAR-SL100A-E> Controller interface Transmission area Remote controller display Set Temperature buttons OFF/ON button Mode button (Changes operation mode) Fan Speed button (Changes fan speed) Airflow button (Changes up/ i-see button* down airflow direction) Timer ON button Menu button Timer OFF button SET/SEND button Weekly timer ON/OFF button* CANCEL button...
Page 142 <PAR-U02MEDA> Controller interface ▌1 Occupancy Sensor The occupancy sensor detects vacancy for energy saving control. ▌2 Brightness Sensor The brightness sensor detects the brightness of the room for energy saving control. ▌3 Temperature & Humidity Sensor The sensor detects the room temperature and the relative humidity. ▌4 LED Indicator The LED indicator indicates the operation status in different colors.
Page 143: Error Information
12-2. ERROR INFORMATION When an error occurs, the following screen will appear. Check the error status, stop the operation, and consult your dealer. 1. Check code, error unit, refrigerant address, date and time of occur- Error information rence, model name, and serial number will appear. Error code The model name and serial number will appear only if the informa- Error unit...
Page 144 • Checking the error information While no errors are occurring, page 2/2 of the error information can be Maintenance menu viewed by selecting ˝Error information˝ from the Maintenance menu. Error information Filter information Errors cannot be reset from this screen. Cleaning Main menu: Cursor...
Page 145: Service Menu
12-3. SERVICE MENU Maintenance password is required 1. Select ˝Service˝ from the Main menu, and press the [ ] button. Main Main menu *At the main display, the menu button and select ˝Service˝ to make Service the maintenance setting. 2. When the Service menu is selected, a window will appear asking for the pass- Service menu word.
Page 146 12-4. TEST RUN 12-4-1. PAR-41MAA 1. Select ˝Service˝ from the Main menu, and press the [ ] button. Test run Input maintenance info. Settings Check Others Select ˝Test run˝ with the F1 or F2 button, and press the [ ] button. 2.
Page 147 12-4-2. PAR-SL97A-E Measure an impedance between the power supply terminal block on the outdoor unit and ground with a 500 V Megger and check that it is equal to or greater than 1.0 MΩ. TEST RUN 1. Turn on the main power to the unit. TEST RUN 2.
Page 148 12-4-4. PAR-U02MEDA Test run [MON] 10:45 Test run Fan speed Air direction Address Remain 2:00 　＞　＞ Pipe 　＞　＞ 9.0°C 　＞　＞　＞　＞ Auto Swing Louver LOSSNAY 　＞　＞　...
Page 149: Function Setting
12-5. FUNCTION SETTING 12-5-1. PAR-41MAA Settings menu 1. Select ˝Service˝ from the Main menu, and press the [ ] button. Function setting Lossnay Select ˝Setting˝ from the Service menu, and press the [ ] button. Service menu: Cursor Select ˝Function setting˝, and press the [ ] button.
Page 150 12-5-2. PAR-SL97A-E Functions can be selected with the wireless remote controller. Function selection using wireless remote controller is available only for refriger- ant system with wireless function. Refrigerant address cannot be specified by the wireless remote controller. [Flow of function selection procedure] Flow of function selection procedure The flow of the function selection procedure is shown below.
Page 151 12-5-3. PAR-SL100A-E 1. Going to the function select mode Press the button between of 5 seconds. (Start this operation from the status of remote controller display turned off.) [CHECK] is lit and ˝00˝ blinks. (Fig. 1) Press the button to set the ˝50˝. Direct the wireless remote controller toward the receiver of the indoor unit and press the button.
Page 152: Error History
12-6. ERROR HISTORY 1. Select ˝Service˝ from the Main menu, and press the [ ] button. Test run Input maintenance info. Settings Check Others Select ˝Check˝ with the F1 or F2 button, and press the [ button. 2. Select ˝Error history˝ with the F1 or F2 button, and press Check menu the [ ] button.
Page 153: Self-Diagnosis
12-7. SELF-DIAGNOSIS 12-7-1. PAR-41MAA 1. Select ˝Service˝ from the Main menu, and press the [ ] button. Diagnosis Self check Select ˝Check˝ from the Service menu, Remote controller check and press the [ ] button. Service menu: Select ˝Diagnosis˝ from the Check menu, Cursor and press the [ ] button.
Page 154 12-7-2. PAR-SL97A-E When a malfunction occurs to air conditioner, both indoor unit and outdoor unit will stop and operation lamp blinks to inform unusual stop. < Malfunction-diagnosis method at maintenance service> Refrigerant [Procedure] address display 1. Press the CHECK button twice. CHECK •...
Page 155: Remote Controller Check
12-8. REMOTE CONTROLLER CHECK If operations cannot be completed with the remote controller, diagnose the remote controller with this function. 1. Select ˝Service˝ from the Main menu, Diagnosis and press the [ ] button. Self check Remote controller check Select ˝Check˝ from the Service menu, Service menu: and press the [ ] button.
Page 156 12-9. SPECIAL FUNCTION OPERATION SETTING <PAR-U02MEDA> *M-NET remote controller cannot be connected with a refrigerant system which includes branch box. It is necessary to perform “group settings” and “Interlocked LOSSNAY” 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, and clear entries, etc.
Page 157 (a) Group setting Use this screen to register the indoor units and the AHC to be controlled from the controller. 1. Select an indoor unit or an AHC address in the [Address] field. [Group setting] The number of units that can be registered. Indoor unit: 16 units maximum Address AHC: 1 unit maximum...
Page 158 HEAD OFFICE: TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO100-8310, JAPAN MITSUBISHI ELECTRIC CONSUMER PRODUCTS (THAILAND) CO., LTD. 700/406 MOO 7, TAMBON DON HUA ROH, AMPHUR MUANG, CHONBURI 20000 THAILAND Published: Sep. 2022. No. TCH095 Specifications are subject to change without notice.

Mitsubishi Electric PUMY-CP100VKM2 Technical & Service Manual

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