Do you have a question about the 3PAMSHHQC18-MZO2 and is the answer not in the manual?
Questions and answers
Serge
May 16, 2025
Mini split 18000 . Temp sensor that read room temp . If i test it, how many owms should it be and how many sensors is there.
When my room temp is actualy 22 the room temp on the unit shows 26 and sometime higher. Its been like that since new. The unit is 3 years old.
Summary of Contents for Perfect Aire 3PAMSHHQC18-MZO2
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TECHNICAL & SERVICE MANUAL MULTI-ZONE QUICK CONNECT DUCTLESS MINI-SPLIT SYSTEM OUTDOOR CONDENSER MODEL: 3PAMSHHQC18-MZO2 / 3PAMSHHQC24-MZO3...
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SAFETY SUMMARY IMPORTANT NOTICE ● We pursue a policy of continuing improvement in design and performance of products. The right is therefore reserved to vary specifications without notice. ● We cannot anticipate every possible circumstance that might involve a potential hazard. ●...
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● If circuit breaker or fuse is often activated, stop the system and contact your service contractor. ● Check that the ground wire is securely connected. If the unit is not correctly grounded, it leads to electric shock. Do not connect the ground wiring to gas piping, water piping, lightning conductor or ground wiring for telephone.
1. General 1.1 Features Features Twin Rotary DC Inverter Compressor The twin rotary inverter compressor design reduces friction during operation for smoother rotation with less vibration, while also preventing leakage of refrigerant gas during compression. The result is a far quieter and more efficient air conditioner. ...
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Variety Indoor & Outdoor Unit Type The new line-up expands the range of layout options both indoors and outdoors. More methods, more conveniently. Option Remote Controller A variety of convenient controller systems permit individual control of settings such as temperature, airflow volume, and operation duration.
1.3 Unit installation With the DC inverter technology, one outdoor unit can be connected with 4 indoor units at most. The combination rate range is from 80% to 130%. Max. Combined Quantity of Indoor Units Model(Btu/h) 1.4 Working range Power Supply Working Voltage 198V ~ 253V Voltage Imbalance...
2. SPECIFICATIONS 2. Specifications up to 2 indoor units up to 3 indoor units up to 4 indoor units up to 5 indoor units Type (Free Match) Model Name 3PAMSHHQC18-02 3PAMSHHQC24-MZ03 R410A R410A R410A R410A Cooling capacity 95 ºF Btu/h 18000 24000 32000...
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2. SPECIFICATIONS up to 2 indoor units up to 3 indoor units up to 4 indoor units up to 5 indoor units Type (Free Match) Model Name 3PAMSHHQC18-02 3PAMSHHQC24-MZ03 Max height 1800 2300 3000 3400 Upload refrigerant 63.49 81.13 105.82 15g/m over 15m 15g/m over 22.5m 15g/m over 30m...
4. Electrical data Power supply Applicable voltage Nominal Outdoor Frequency Nominal Voltage(V) Umin(V) Umax(V) Sensitive (Hz) unit Current(A) Current(mA) 18K/24K 208/230 36K/42K 208/230 NOTE: 1. The above compressor data is based on 100% capacity combination of indoor units at the rated operating frequency.
5. Capacities and selection data 5.1 Capacity characteristic charts The following charts show the characteristics of outdoor unit capacity, which corresponds with the operating ambient temperature of outdoor unit. Conditions: ① Pipe length / height difference : 25 ft. (7.6m) / 0 ft. (0m) ②...
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Performance data (Cooling mode) Indoor Air Temp. °F DB / °F WB Indoor Outdoor 64 / 54 70 / 60 75/ 83 80 / 67 85 / 71 90 / 73 units Air Temp. TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC...
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Performance data (Cooling mode) Indoor Air Temp. °F DB / °F WB Indoor Outdoor 64 / 54 70 / 60 75/ 83 80 / 67 85 / 71 90 / 73 units Air Temp. TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC...
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Performance data (Cooling mode) Indoor Air Temp. °F DB / °F WB Indoor Outdoor 64 / 54 70 / 60 75/ 83 80 / 67 85 / 71 90 / 73 units Air Temp. TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC...
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Performance data (Cooling mode) Indoor Air Temp. °F DB / °F WB Indoor Outdoor 64 / 54 70 / 60 75/ 83 80 / 67 85 / 71 90 / 73 units Air Temp. TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC...
5.2 Piping length correction factor Indoor unit Pipe length E Outdoor unit Pipe length A Model Item Piping to each indoor unit ft./m ≤82(25) ≤65.6(20) ≤65.6(20) ≤65.6(20) (A/B/C/D/E) A+B≤ A+B+C≤ A+B+C+D≤ A+B+C+D+E Total length of piping between all ft./m units 164(50) 197(60) 246(75)
5.3 Correction factors according to defrosting operation The heating capacity in previous part, excludes the condition of defrosting operation period. In consideration of defrosting operation, the heating capacity is corrected by the equation below. Corrected heating capacity = Defrost Correction factor x unit capacity OUTDOOR TEMPERATURE [℉...
6. Sound pressure data Outdoor unit Model Model 3.28ft. (1.0m) ahead of the unit; 2.70ft. (0.83m) 3.28ft(1.0m) ahead of the unit; Test condition Test condition high from the bottom of the unit;3.28ft.(1.0m) high 3ft(0.92m) high from the bottom of the unit; from the ground.
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7. REFRIGERANT CYCLE Ambient Temperature Sensor Ambient Temperature Water Level Switch Ambient Temperature Water Level Switch Muffler Liquid Stop Volve High Pressure Ambient Temperature Switch Liquid Temperature Sencor Muffler Water Level Switch 4-Way Valve Pressure Ambient Temperature Switch Suction Discharge Water Level Switch Temperature Temperature...
8. WIRING DIAGRAM 8.2 Control board picture Main control board Description Description Driver EE Data Socket Sensor Signal from Sensor Board DC Motor Communication Signal to Indoor Only for developer AC Power Lin Electronic Expansion Valve B AC Power Nin Electronic Expansion Valve A Earth For developer...
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Sensor board Maintenance board Description Gas B/Liquid B/Gas A/Liquid A sensor Discharge Sensor/ Defrost Sensor /Coil Sensor /Suction Sensor/ Outdoor Sensor High Pressure Switch Liquid C/ Gas C/Liquid D/Gas D sensor (Invalid for 18K) Sensor Signal to Main Board Select Switch Signal to Mainboard to Indoor Communication signal to main board...
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11. WIRING DIAGRAM Main control board 16 15 14 Description Description AC Power Computer Monitor DC Power 7-Segment display DC fan Compressor Overheat Protection Switch IPM-SI Low Pressure Switch Signal to filter board High Pressure Switch 15V & 5V Power Liquid C/Gas C Sensor Discharge/defrost/Coil/Suction/Ambient SI-N...
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11. WIRING DIAGRAM Drive board Description Description IGBT 15V & 5V Power Diodes Rectifier Bridge CPU Code Drive Board Code Communication with Upper System AC Power Input IPM Module...
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8 . WIRING DIAGRAM Drive board Description Description DC Fan Signal Reactor L2 IPM-SI Compressor W Compressor U Compressor V Driver Reactor L1...
8. WIRING DIAGRAM 8.3 Common wiring Electrical wiring diagram Outdoor unit Terminal Note: For some indoor units Power connecting cord Indoor unit A Terminal Indoor unit Outdoor unit Power connecting cord 3(SI) Terminal B 2(L) Power connecting cord Indoor unit B 1(N) Terminal Terminal C...
9. FIELD SETTING 9. Field setting 9.1 Outdoor unit DIP switch Dip Switch Setting of Outdoor Unit Mark of " " indicates the position of dip switches. Switch is valid when is ON. Refrigerant collection function By default setting is OFF. OFF ----normal mode ON----refrigerant collection mode When the power is ON, the dial changed from OFF to ON, enters into refrigerant collection mode.
9. FIELD SETTING 9.2 Running parameter query Outdoor Running parameters can be checked by 7 segment display. 7 segment display Digital Display Switch Outdoor control board ● ● ● Decrease Select Increase There are 3 buttons on the digital display board: 1) Select button: Select to display outdoor/indoor unit parameter.
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9. FIELD SETTING Parameter Descriptions Dual Trio Quattro 1 by 5 Fault codes ● ● ● ● Compressor actual frequency ● ● ● ● Compressor driving frequency ● ● ● ● Compressor target frequency ● ● ● ● Compressor exhaust temperature ●...
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9. FIELD SETTING Parameter Descriptions Dual Trio Quattro 1 by 5 Unit D set temperature ○ ○ ● ● Unit D capacity ○ ○ ● ● D.10 Unit D set fan speed ○ ○ ● ● Unit D ac tual suction overheating D.11 ○...
10. PIPING WORK AND REFRIGERANT CHARGE 10. Piping work and refrigerant charge 10.1 MAX.length allowed Indoor unit Model Item Pipe length E Piping to each indoor unit ft./m ≤82(25) ≤65.6(20) ≤65.6(20) ≤65.6(20) (A/B/C/D/E) A+B≤ A+B+C≤ A+B+C+D≤ A+B+C+D+E Total length of piping between all Outdoor unit ft./m units...
10. PIPING WORK AND REFRIGERANT CHARGE 10.3 Air tight test Do use nitrogen when performing air-tight test. Connect the gauge manifold using charging hoses with a nitrogen cylinder to the check joints of the liquid line and the gas line stop valves. Perform the air-tight test. Don't open the gas line stop valves.
12. CONTROL MODE 12. Control mode 1) Cooling Anti-freeze Protection To prevent freezing caused by too low temperature of indoor evaporator, the air conditioner will implement real-time detection over the indoor coil temperature. If the indoor coil temperature is too low, the compressor will be prohibited from increasing the frequency or decrease the frequency even shut down automatically 2) Heating Overload Protection...
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12. CONTROL MODE b. Mode conflict The operating mode of outdoor unit is decided by the operating mode of the indoor unit firstly booted. Indoor unit subsequently booted will firstly determine whether it’s own mode is conflict with the outdoor mode. If so, the indoor unit will automatically shut down after three beeps; If there is no conflict, the indoor unit will boot normally.
14.TROUBLESHOOTING 14. Troubleshooting 14.1 Trouble guide Troubleshooting for normal malfunction Troubleshooting Possible Reason of Abnormality How to Deal With 1. Check power supply circuit; 2. Measure insulation resistance to 1. Power supply failure; ground to see if there is any 2.
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14.TROUBLESHOOTING When the air conditioner failure occurs, the fault code will displays on control board. HOW TO CHECK FAULT CODES 1) 18K Drive failure indicator V17: Ten digit number V18: Single digit number Main control failure indicator V15: Ten digit number V16: Single digit number Main Control Board 2) 18K/24K/36K/42K...
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14.TROUBLESHOOTING Drive fault code display The lamp of drive board flash shows failure occurs. The drive failure lamp flicking times shows the failure code. Driveboard Drivefailure lamp The drive failure lamp flicking times shows the failure code.
14.TROUBLESHOOTING 14.2 Fault codes The following is the fault code table of outdoor units. Table 1 Outdoor fault code Fault Fault description Possible reasons for abnormality How to deal with Remarks code 1.Reconnect the outdoor 1.The outdoor ambient temperature ambient temperature sensor; Outdoor ambient sensor is connected loosely;...
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14.TROUBLESHOOTING Fault Fault description How to deal with Possible reasons for abnormality Remarks code 1. Reconnect the wiring of the 1. The wiring of the overload overload protector; protector is connected loosely. 2. Replace the overload 2. The overload protector fails . protector;...
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14.TROUBLESHOOTING Fault Fault description Possible reasons for abnormality How to deal with Remarks code 1. Reconnect the wiring of the 1. The wiring of the sensor for the sensor for the expansion valve expansion valve C (liquid pipe) is C (liquid pipe). Expansion valve C connected loosely;...
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14.TROUBLESHOOTING Fault Fault description Possible reasons for abnormality How to deal with Remarks code 1.The cable between the control 1.Reconnect the cable between board and the driver board is the control board and the connected loosely; driver board; IPM and control board 2.The cable between the control 2.Replace the communication communication fault...
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14.TROUBLESHOOTING Fault Fault description Remarks Possible reasons f or abnormality How to deal with code EE in MCU is fails, the unit Indoor EEPROM can run, but the function user Replace EE data in MCU. Data 2 fault has set is ineffective. 1.
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14.TROUBLESHOOTING NOTE 1: If the indoor unit can not start or the indoor unit stops itself after 30s, at the same time the unit do not display the fault code, please check the fire and the socket of the control board. NOTE 2: If the indoor unit displays the 75,76,77,78 fault code after you turn on the unit, please check the TEST seat of the indoor control board or the TEST detection circuit to see whether short circuit...
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14.TROUBLESHOOTING Table 3 Drive fault code (18K) Fault Fault description Possible reasons for abnormality How to deal with code Inverter DC voltage overload fault 1. Power supply input is too high 1. Check power supply Inverter DC low voltage fault or too low;...
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14. TROUBLESHOOTING Table 4 Drive Fault Code (24K/36K/42K) Fault Fault description How to deal with Possible reasons for abnormality code 1. Check compressor wire; 1. Compressor wire is not connected properly; 2. Change driver board ; 2. Bad driver board components; Q axis current 3.
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14.TROUBLESHOOTING Fault Fault description How to deal with Possible reasons for abnormality code 1. Voltage input is too low; 1. Check the power supply. Low DC voltage 200V 2. Drive board fault. 2. Change the driver board. Driver board read EE 1.
15. CHECKING COMPONENTS 15. Checking components 15.1 Check refrigerant system TEST SYSTEM FLOW Conditions: ① Compressor is running. ② The air condition should be installed in good ventilation. Tool: Pressure Gauge Technique: ① see ② feel ③ test See ----- Tube defrost. Feel ----- The difference between tube’s temperature.
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15. CHECKING COMPONENTS Test system flow Cooling mode Test system pressure. The pressure on the Is the low pressure high side. normal at service part ? Recharge refrigerant after air purging with If the pressure is The pressure on the the vacuum close to static low side.
15. CHECKING COMPONENTS 15.2 Check parts unit 1. Fan motor Model: ZWK511A805001 Model: SIC-71FW-D8121-136K 36K/42K Model: SIC-81FW-F1138-1 2. Compressor Compressor examine and repair EATF200D22UMT Model: EATF250D22UMT 36K/42K Model: EATF400D64UMTA DC Inverter & Power Controller Compressor...
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15. CHECKING COMPONENTS Test in resistance. TOOL: Multi-meter. Test the resistance of the winding. The compressor fails if the resistance of winding is 0 (short circuit)or∞(open circuit). Familiar error: 1) Compressor motor lock. 2) Discharge pressure value approaches static pressure value. 3) Compressor motor winding abnormality.
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15. CHECKING COMPONENTS 5. Fuse Checking continuity of fuse on PCB ASS’Y. Remove the PCB ASS’Y from the electrical component box. Then pull out the fuse from the PCB ASS’Y.Check for continuity by a multimeter as shown below. Fuse Fuse PCB Ass'Y 6.
16. DISASSEMBLY AND ASSEMBLY FOR COMPRESSOR AND MOTOR 16. Disassembly and assembly for compressor and motor The special tools for compressor & motor disassembly and assembly: Tool Hexagon Screwdriver Hexagon Socket Outdoor unit 18K/24K Important: Before disassembly and assembly, make sure that the power to the system has been disconnected and verified as voltage free.
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15. DISASSEMBLY AND ASSEMBLY FOR COMPRESSOR AND MOTOR 36K/42K Important: Before disassembly and assembly, make sure that the power to the system has been disconnected and verified as voltage free. Step Illustration Handling Instruction 1. Remove the top cover, handle 1.
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5401 Dansher Road Countryside, IL 60525 844-4PA-AIRE 844-472-2473 support@perfectaire.us 877-997-2473 supportcanada@perfectaire.us CANADA SUPPORT www.perfectaire.us Printed in China 0321_M661...
Need help?
Do you have a question about the 3PAMSHHQC18-MZO2 and is the answer not in the manual?
Questions and answers
Mini split 18000 . Temp sensor that read room temp . If i test it, how many owms should it be and how many sensors is there. When my room temp is actualy 22 the room temp on the unit shows 26 and sometime higher. Its been like that since new. The unit is 3 years old.