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CLIVET WiSAN-YSE1 10.1 Service Manual
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CLIVET WiSAN-YSE1 10.1 Service Manual

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Service Manual
WiSAN-YSE1 10.1 - 40.2
SM23E018GB-00
05-23
R32
02-23

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Summary of Contents for CLIVET WiSAN-YSE1 10.1

  • Page 1 Service Manual WiSAN-YSE1 10.1 - 40.2 SM23E018GB-00 05-23 02-23...
  • Page 3 CONTENTS Part 1 General Information ................4 Part 2 Component Layout and Refrigerant Circuits ........... 5 Part 3 Control ....................22 Part 4 Diagnosis and Troubleshooting ............47 Part 1 General Information Unit Capacities and External Appearance..........4 Water outlet temperature range ............4 ---------------------------------------------------------------------- ---------------------------------------------------------------------...
  • Page 4 WiSAN-YSE1 Service Manual 1 Unit Capacities and External Appearance Table 1-1.1: Aqua Tempo Super II unit capacity range and unit appearances Capacity up to 30kW up to 60kW up to 90kW 10.1 - 14.1 Model 16.2 - 22.2 30.2 - 35.2 Appearance Power 380-415V/3Ph/50Hz...
  • Page 5 WiSAN-YSE1 Service Manual Part 2 Component Layout and Refrigerant Circuits Layout of Functional Components ............6 Piping Diagrams ................... 13 Refrigerant Flow Diagrams ..............18 ---------------------------------------------------------------------- ---------------------------------------------------------------------...
  • Page 6 WiSAN-YSE1 Service Manual 1 Layout of Functional Components Size 10.1 – 14.1 Figure 2-1.1: front view Figure 2-1.2: rear view ---------------------------------------------------------------------- ---------------------------------------------------------------------...
  • Page 7 WiSAN-YSE1 Service Manual Figure 2-1.3: top view ---------------------------------------------------------------------- ---------------------------------------------------------------------...
  • Page 8 WiSAN-YSE1 Service Manual Size 16.2 – 22.2 Figure 2-1.4: front view Figure 2-1.5: rear view ---------------------------------------------------------------------- ---------------------------------------------------------------------...
  • Page 9 WiSAN-YSE1 Service Manual Figure 2-1.6: top view ---------------------------------------------------------------------- ---------------------------------------------------------------------...
  • Page 10 WiSAN-YSE1 Service Manual ---------------------------------------------------------------------- ---------------------------------------------------------------------...
  • Page 11 WiSAN-YSE1 Service Manual Size 30.2 – 35.2 Figure 2.1.7: front view Figure 2.1.8: rear view ---------------------------------------------------------------------- ---------------------------------------------------------------------...
  • Page 12 WiSAN-YSE1 Service Manual Figure 2.1.10: top view ---------------------------------------------------------------------- ---------------------------------------------------------------------...
  • Page 13 2 Piping Diagrams UP TO 30 kW Figure 2-2.1: piping diagram ---------------------------------------------------------------------- ---------------------------------------------------------------------...
  • Page 14 ---------------------------------------------------------------------- ---------------------------------------------------------------------...
  • Page 15 UP TO 90 KW Figure: piping diagram ---------------------------------------------------------------------- ---------------------------------------------------------------------...
  • Page 16 Key components: 1. Compressor Maintains pressure differential between high and low pressure sides of the refrigerant system. 2. Fan: Ventilates the air side heat exchanger. 3. Oil separator: Separates oil from gas refrigerant pumped out of the compressor and quickly returns it to the compressor. Separation efficiency is up to 99%.
  • Page 17 19. Pressure gauge joint (high and low pressure side): Charges or discharges refrigerant. 20. Capillary: Throttles and reduces pressure in the liquid injection cooling pipe. 21. Solenoid valve SV2 (only for size 10.1-22.2): Control the on-off of the liquid injection. It opens at the maximum discharge temperature reaching 105℃ while it closes at the maximum discharge temperature below 95℃...
  • Page 18 3 Refrigerant Flow Diagrams Heating operation Figure 2-3.1: Refrigerant flow during heating operation for sizes 10.1 – 14.1 kW High temperature, high press gas High temperature, high press liquid Low temperature, low pressure Figure 2-3.2: Refrigerant flow during heating operation for sizes 16.2 – 22.2 High temperature, high press gas High temperature, high press liquid Low temperature, low pressure...
  • Page 19 Figure 2-3.3: Refrigerant flow during heating operation for sizes 30.2 – 35.2 High temperature, high press gas High temperature, high press liquid Low temperature, low pressure ---------------------------------------------------------------------- ---------------------------------------------------------------------...
  • Page 20 Cooling and defrosting operation Figure 2-3.4: Refrigerant flow during cooling and defrosting operations for sizes 10.1 – 14.1 High temperature, high press gas High temperature, high press liquid Low temperature, low pressure Figure 2-3.5: Refrigerant flow during cooling and defrosting operations for sizes 16.2 – 22.2 High temperature, high press gas High temperature, high press liquid Low temperature, low pressure...
  • Page 21 WiSAN-YSE Service Manual Figure 2-3.6: Refrigerant flow during cooling and defrosting operations for sizes 30.2 – 35.2 High temperature, high press gas High temperature, high press liquid Low temperature, low pressure ---------------------------------------------------------------------- ---------------------------------------------------------------------...

  • Page 22: Table Of Contents

    WiSAN-YSE1 Service Manual Part 3 Control General Control Scheme Flowchart Stop Operation Standby Control Startup Control Normal Operation Control Protection Control Special Control Unit set-up at commissioning ---------------------------------------------------------------------- ---------------------------------------------------------------------...

  • Page 23: General Control Scheme Flowchart

    WiSAN-YSE1 Service Manual 1 General Control Scheme Flowchart Sections 3-2 to 3-7 on the following pages detail when each of the controls in the flowchart below is activated. Stop operation  Abnormal shutdown  System stops Standby control  Crankcase heater control ...

  • Page 24: Stop Operation

    WiSAN-YSE1 Service Manual 2 Stop Operation The stop operation occurs for one of the following reasons: 1. Abnormal shutdown: in order to protect the compressors, if an abnormal state occurs the system makes a stop with thermo off operation and an error code is displayed on the unit’s PCB digital displays and on the user interface. 2.

  • Page 25: Startup Control

    WiSAN-YSE1 Service Manual 4 Startup Control 4.1 Compressor Startup Delay Control In initial startup control and restart control (except in defrosting operation), compressor startup is delayed such that a minimum 7 minutes has elapsed since the compressor stopped, in order to prevent frequency compressor on/off and to equalize the pressure within the refrigerant system.
  • Page 26 WSAN-YSi Service Manual 30.2-35.2 - Compressor Start-up Cooling Start-up System startup program: the following startup program is executed when the system is powered on: Heating/Water Heating Start-up System startup program: the following startup program is executed when the system is powered on: ---------------------------------------------------------------------- ---------------------------------------------------------------------...
  • Page 27 WiSAN-YSE1 Service Manual 4.3 Startup Control for Heating Operation Table 3-4.1: Component control during startup in heating mode Wiring diagram Component 16.2-22.2 30.2-35.2 Control functions and states 10.1-14.1 label Inverter compressor A COMP A Controlled according to ambient temperature and ●...

  • Page 28: Normal Operation Control

    WiSAN-YSE1 Service Manual Water side heat exchanger heater EVA-HEAT ● ● ● Water flow switch Water switch ● ● ● Water flow switch heater W-HEAT ● ● ● Controlled according to ambient temperature and Electric auxiliary heat HEAT ● ● ●...
  • Page 29 WiSAN-YSE1 Service Manual Position (steps) Electronic expansion valve EXV-A ● ● ● 30kW: from 0 (fully closed) to 480 (fully open), 60/90kw: fully open controlled according to suction superheat. Position (steps) Electronic expansion valve EXV-B ● ● 60/90kw: from 0 (fully closed) to 2880 (fully open), controlled according to suction superheat.
  • Page 30 WiSAN-YSE1 Service Manual 5.4 Water pump select control When the dial switch S12_2 on the main PCB is switched ON, the system runs “one small pump per unit” mode, when S12_2 is switched OFF, the system runs “one large pump controlled by master unit” mode. ...
  • Page 31 WiSAN-YSE1 Service Manual 5.7 Outdoor Fan Control The speed of the unit fan(s) is adjusted in steps, as shown in Table 3-5.3. Table 3-5.3: Outdoor fan speed steps Fan speed (rpm) 30.2-35.2 Fan speed index 10.1-14.1 16.2-22. 2 FAN 1 FAN 1 FAN 2 FAN 1...

  • Page 32: Protection Control

    WiSAN-YSE1 Service Manual 6 Protection Control High Pressure Protection Control This control protects the refrigerant system from abnormally high pressure and protects the compressor from transient spikes in pressure. Figure 3-6.1: High pressure protection control Normal operation > 4.2MPa < 3.2MPa When P0 protection occurs 3 times in 60 minutes, a manual system restart High pressure protection, error code P0 is displayed...
  • Page 33 WiSAN-YSE1 Service Manual 6.4 Compressor and Inverter Module Protection Control This control protects the compressors from abnormally high currents and protects the inverter modules from abnormally high temperatures. It is performed for each compressor and inverter module. Figure 3-6.4: Compressor current protection control Normal operation Current :30/60kw>...
  • Page 34 WiSAN-YSE1 Service Manual 6.6 DC Fan Motor Protection Control This control protects the DC fan motors from abnormal power supply. DC fan motor protection occurs when the fan module does not receive any feedback from the fan motor. When DC fan motor protection control occurs the system displays the PU error code and the unit stops running. When PU protection occurs 2 times in 120 minutes, the FF error is displayed.
  • Page 35 WiSAN-YSE1 Service Manual 6.8 Air Side Heat Exchanger High Temperature Protection Control This control protects the air side heat exchanger from high temperature. Figure 3-6.9: Air side heat exchanger high temperature protection control Normal operation T3:30kw > 60°C T3:30kw < 50°C 60/90kw>62°C 60/90kw<55°C High temperature protection, error code P7 is displayed...
  • Page 36 WiSAN-YSE1 Service Manual 6.10 Water Side Heat Exchanger Low Temperature Protection Control This control protects the water side heat exchanger from ice formation. Figure 3-6.12: Water side heat exchanger low temperature protection control in normal cooling mode Normal operation Taf2 ≤ 3°C Taf2 >10°C Low temperature protection, error code PE is displayed Notes:...

  • Page 37: Special Control

    WiSAN-YSE1 Service Manual the units stop running. When the suction pressure is above 0.6Mpa, the compressor enters re-start control. It will not display the PC error when the suction pressure drops below 0.6Mpa for 30s for the first time until the suction pressure drops below 0.6Mpa for 30s for the second time in 30 minutes.
  • Page 38 WiSAN-YSE1 Service Manual Notes: 1. The address settings on the unit main PCBs for master unit and slave unit do not change. 7.2 Defrosting Operation In order to recover heating capacity, the defrosting operation is conducted when the unit air side heat exchanger is performing as an evaporator.

  • Page 39: Unit Set-Up At Commissioning

    WiSAN-YSE1 Service Manual Connecting this port, system running heating mode, disconnecting this port, system running cooling mode.  The default water outlet temperature setting in heating mode is 45°C and in cooling mode is 7°C. The default hysteresis temperature setting is 2°C. ...
  • Page 40 WiSAN-YSE1 Service Manual General DIP switch setting overview: Single unit Cascade system Pump on board S12_2 ON S12_2 ON External pump S12_2 ON S12_2 OFF Temperature compensation (under service password) TEMPERATURE compensation Press "▲ " or "▼ " to select “TEMPERATURE COMPENSATION” under the “SERVICE MENU” page. Press “ ”...
  • Page 41 WiSAN-YSE1 Service Manual 15∽30℃ T4_Heat_2 T4 temperature 2 15℃ 0∽30℃ Offset_H return temperature 10℃ Periodic pump setting Figure 2.37. Water pump switch time setting interface "Pump on time" sets the running time when the pump is forced on, the setting range is 5~60, the default is 5, and the adjustment range is 5;...
  • Page 42 WiSAN-YSE1 Service Manual Title Effect Predetermined Area Default Heat1 Enable System backup heater No/Yes T_Heat1_Delay Activation time 60……240 min 90 min DT_Heat1_OFF ∆ T off in relation to set point 2……10°C 5 °C T4_Heat1_ON Air temperature below which Heat1 is -5……13°C 5°C activated...
  • Page 43 WiSAN-YSE1 Service Manual Adjustment Parameter role Predetermined area Defaults range Heat1 enable Electric heating 1 enable Yes/No T-Heat1-Delay Heat1 opening delay 60~240 min 90min 5min dTw_Heat1_Off Stop hysteresis temperature 2~10°C 5°C 1℃ [SF1] T4_Heat1_On T4 start temperature -5~20°C 5°C 1℃ All electric heating 2 are not allowed to All heat2 disable Yes/No...
  • Page 44 WiSAN-YSE1 Service Manual Energy saving/demand limit (da tastiera) SERVICE MANUAL This menu is used to configure parameters related to system energy saving. After entering, as shown in Figure 2.42. Figure 2.42. Energy saving configuration interface The result of energy saving setting is converted into energy saving mode and sent to the system, and the corresponding relationship is shown in Table 2.8.
  • Page 45 WiSAN-YSE1 Service Manual priority This menu is used to configure parameters related to hot water production. If the system has no hot water production function, you cannot enter this submenu.. After entering, the interface is shown in Figure 2.16. Figure 2.16. Hot water configuration interface Switch configuration items and modify setting values by selecting keys (default value Select address=00, DHW switch=No, DHW first=No).
  • Page 46 WiSAN-YSE1 Service Manual ---------------------------------------------------------------------- ---------------------------------------------------------------------...
  • Page 47 WiSAN-YSE1 Service Manual Part 4 Diagnosis and Troubleshooting Unit Electric Control Box Layout Unit PCBs Error Code Table Troubleshooting Appendix to Part 5 Adjustments How to install the Inverter board ---------------------------------------------------------------------- ---------------------------------------------------------------------...
  • Page 48 WiSAN-YSE1 Service Manual 1 Unit Electric Control Box Layout Size 10.1-14.1 Figure 4-1.1: Electric control box front view- top layer AC filter board Low voltage terminal Power supply terminal Main control board Figure 4-1.2: Electric control box front view-bottom layer Fan module Compressor module Electric reactor...
  • Page 49 WiSAN-YSE1 Service Manual Size 16.2-22.2 Figure 4-1.3: Electric control box front view-top layer Main control board AC filter board Power supply terminal High voltage terminal Low voltage terminal Figure 4-1.4: Electric control box side view-bottom layer Electric reactors Compressor modules Fan modules ---------------------------------------------------------------------- ---------------------------------------------------------------------...
  • Page 50 WSAN-YSi Service Manual Size 30.2-35.2 Figure 4-1.5: Electric control box front view-top layer Main control board AC filter board Power supply terminal High voltage terminal Low voltage terminal Figure 4-1.6: Electric control box side view-bottom layer Electric reactor Compressor module Fan module ---------------------------------------------------------------------- ---------------------------------------------------------------------...
  • Page 51 2 Unit PCBs 2.1 Types The units have four PCBs – main control board, three phase AC filter board, DC fan inverter module board and compressor inverter module board. The locations of each PCB in the unit electric control boxes are shown in Figures 4-1.1 to 4-1.6 in Part 4, “Unit Electric Control Box Layout”.
  • Page 52 WiSAN-YSE1 Service Manual Table 4-2.1:Unit main PCB Label in Figure 4-2.1 Code Content Voltage CN58 Signal output port for filter board relay 0 or 12V DC CN91 Reserve port 0 or 12V DC CN19 ON/OFF signal input port for system low pressure 0 or 5V DC CN69 Temperature detection port (Tp1/Tp2/Tz/7/Taf1)
  • Page 53 WiSAN-YSE1 Service Manual Table 4-2.1:Unit main PCB CN48-5/6 Pump-V 0-10V output CN48-3/4 V1 V2 performance capacity limitation 0-10V input without CN48 IN & OUT polarity CN48-1/2 TEMP SWITCH on/off input CN18 USB INTERFACE for software updating 5V DC DSP1 Digital tube display 0 or 5V DC DSP2 Port for water flow switch...
  • Page 54 WiSAN-YSE1 Service Manual 2.2.2 Function of buttons SW3 to SW6 Table 4-2.3: Function of buttons SW3 to SW6 Button Function Down Menu 2.2.3 Digital display output Table 4-2.4: Digital display output in different operating states Unit state Parameters displayed on DSP1 Parameters displayed on DSP2 DSP1 Standby...
  • Page 55 WiSAN-YSE1 Service Manual Table 4-2.5a: Compressor inverter module PCB Code Content Voltage Label in Figure 4-2.2a CN10 Port for current detection port(CN15) of main control board 0~5V DC 400V AC Port for three-phase power supply of filter board 0~400V AC Port for compressor connection CN17 DC bus current transformer...
  • Page 56 WiSAN-YSE1 Service Manual Table 4-2.5b: Compressor inverter module PCB Code Content Voltage Label in Figure 4-2.2b Port for three-phase power supply of filter board 400V AC Port for compressor connection 0~400V AC Low voltage power supply for fan driven board 18-22V DC CN20 IC25...
  • Page 57 WiSAN-YSE1 Service Manual 9.xx T5: DHW temperature 10.xx Taf1: Water tank antifreeze temperature, antifreeze protection 11.xx Taf2: exchanger outlet temperature, antifreeze protection 12.xx Tw: common outlet water temperature, after the last unit 13.xx Twi: inlet water 14.xx Two: outlet water 15.xx Tz: Total condenser outlet temperature 16.xx...
  • Page 58 WiSAN-YSE1 Service Manual defrosting on timer) EEPROM error: 1: Error; 0: No error 38.xx Defrosting plan 39.xx initial frequency 40.xx Tc: Saturation temperature corresponding to high pressure in heating mode 41.xx Te: Saturation temperature corresponding to low pressure in cooling mode 42.xx T6a: exchanger inlet temperature 43.xx...
  • Page 59 WiSAN-YSE1 Service Manual 1.2 Fan Module Board Figure 4-2.3: Fan module PCB for all models Table 4-2.7: Fan module PCB Label in Figure Code Content Voltage 4-2.5 Communication port for inverter module 0~5V DC Communication port between fan modules or communication port between fan module and main control board EEPROM debug port...
  • Page 60 WiSAN-YSE1 Service Manual 1.3 AC Filter Board Figure 4-2.4: AC filter board for size 10.1-14.1 Notes: Label descriptions are given in Table 4-2.9. Table 4-2.9: AC filter board for size 10.1-14.1 Label in Code Content Voltage Figure 4-2.6 310V DC Port for fan module PCB Port for power supply of compressor inverter module 310V DC...
  • Page 61 WiSAN-YSE1 Service Manual Figure 4-2.5: AC filter board for size 16.2-35.2 Notes: 1. Label descriptions are given in Table 4-2.10. Table 4-2.10: AC filter board for size 16.2-35.2 Label in Figure 4-2.5 Code Content Voltage CN30 Relay signal Terminal from main control board(CN21) 310V DC CN36 Terminal for power supply of compressor inverter board...
  • Page 62 WiSAN-YSE1 Service Manual Table 4-2.10: AC filter board for size 16.2-35.2 (continued) L1&N:230V~ L2&N:230V~ Three-phase power input L3&N:230V~ 1.4 Fan Module Power Board Figure 4-2.6: Fan module power board for size 16.2-35.2 Notes: Label descriptions are given in Table 4-2.11. Table 4-2.11: Fan power board for size 16.2-35.2 Label in Figure 4-2.6 Code...
  • Page 63 Table 4-3.1: Error Code Table (continued) 3 Error Code Table Table 4-3.1: Error Code Table Error code Serial number Content Remarks Displayed on main PCB and user Main control parameter memory EEPROM failure interface Displayed on main PCB and user Phase sequence failure of main control board check interface Displayed on main PCB and user...
  • Page 64 Table 4-3.1: Error Code Table (continued) System high-pressure protection or discharge Displayed on main PCB and user temperature protection interface Displayed on main PCB and user System low pressure protection interface Displayed on main PCB and user Tz/7 Coil final outlet temperature too high interface Displayed on main PCB and user T4 ambient temperature too high in cooling mode...
  • Page 65 Table 4-3.1: Error Code Table (continued) Displayed on main PCB and user Pressure sensor error interface Displayed on main PCB and user Suction temperature sensor error interface Displayed on main PCB and user DC fan failure interface Displayed on main PCB and user DIP inconsistency of multiple water pumps interface Displayed on main PCB and user...
  • Page 66 4 Troubleshooting 4.1 Warning Warning  All electrical work must be carried out by competent and suitably qualified, certified and accredited professionals and in accordance with all applicable legislation (all national, local and other laws, standards, codes, rules, regulations and other legislation that apply in a given situation). ...
  • Page 67 4.2 E0/H9 Troubleshooting 4.2.1 Digital display output 4.2.2 Description  1E0 indicates main PCB EEPROM error.  1H9 indicates IPM inverter module (compressor A) EEPROM error.  2H9 indicates IPM inverter module (compressor B) EEPROM error.  All units stop running. ...
  • Page 68 4.2.4 Procedure E0/H9 Main PCB or IPM inverter module Ensure the EEPROM is connected EEPROM is not connected properly properly EEPROM damaged Replace the EEPROM Replace Main PCB or IPM inverter module PCB Notes: Main PCB EEPROM is designated IC10 on the main PCBs (labeled 38 in Figure 4-2.1 in Part 4, 2.2 “Main PCB”). Compressor inverter module PCB EEPROM is designated IC25 on compressor inverter module PCB (labeled 6 in Figure 4-2.2a and labeled 4 in Figure 4-2.2b in Part 4, 2.3 “Compressor inverter module PCB”).
  • Page 69 4.3 E1 Troubleshooting 4.3.1 Digital display output 4.3.2 Description  Phase sequence error.  Unit stops running.  Error code is displayed on main PCB and user interface. 4.3.3 Possible causes  Power supply phases not connected in correct sequence. ...
  • Page 70 4.3.4 Procedure The phase sequence of the 3-phase Exchange any two of the 3-phase wires power supply is incorrect Ensure all supply terminals are securely Some power supply terminals are fastened loosened Check the power supply equipment The power supply is abnormal Replace refrigerant system main PCB Notes: Loosened power supply terminals can cause the compressors to operate abnormally and compressor current to be very large.
  • Page 71 4.4 E2 Troubleshooting 4.4.1 Digital display output 4.4.2 Description  Communication error between unit and user interface.  All units stop running.  Error code is displayed on main PCB and user interface. 4.4.3 Possible causes  Communication wires between unit and user interface are not connected properly. ...
  • Page 72 4.4.4 Procedure Communication wires P Q E have short circuited, disconnected or are Reconnect the communication wires misconnected Communication wires P Q E are not Connect the communication wires in a connected in a daisy chain daisy chain Wires between main PCB and electric control box communication Ensure the wires are connected properly terminals block are loosened...
  • Page 73 4.5 E3, E4, E5, E7, Eb, Ed, EF, EP, EU, F9,Fb, Fd Troubleshooting 4.5.1 Digital display output ---------------------------------------------------------------------- ---------------------------------------------------------------------...
  • Page 74 4.5.2 Description indicates a combined water outlet temperature sensor error indicates a water outlet temperature sensor error indicates an air side heat exchanger refrigerant outlet temperature sensor T3A error indicates an outdoor ambient temperature sensor error indicates a water side heat exchanger anti-freezing temperature sensor Taf2 error indicates a discharge pipe temperature sensor of system A error indicates a discharge pipe temperature sensor of system B error indicates a water inlet temperature sensor error...
  • Page 75 4.5.4 Procedure E3 / E4 / E5 / E7 / Eb / Ed /EE/ EF / EP / EU / Fb / F9 / Fd Temperature sensor or pressure sensor Ensure the sensor is connected properly connection on main PCB is loosened Temperature or pressure sensor has Replace the sensor short-circuited or failed...
  • Page 76 4.6 E8 Troubleshooting 4.6.1 Digital display output 4.6.2 Description  Power phase protector output error  When this error occurs in the main unit, all units stop running. When this error occurs in the slave unit, the slave unit stop running. ...
  • Page 77 4.6.4 Procedure The phase sequence of the 3-phase Exchange any two of the 3 phase wires power supply is incorrect Ensure all power supply phases is Power supply phases lost complete Ensure all supply terminals are securely Some power supply terminals are loosened fastened The power supply is abnormal...
  • Page 78 4.7 E9 Troubleshooting 4.7.1 Digital display output 4.7.2 Description  Water flow failure.  E9 indicates a water flow switch error. When an E9 error occurs 3 times in 60 minutes, a manual system restart is required before the system can resume operation. ...
  • Page 79 4.7.4 Procedure Ensure the switch is connected properly and Water flow switch connection on main check the palette and switch are clean PCB is lost Check the water piping and valves. Make sure the water piping is clean, there is no Water flow is insufficient air in the water piping and all valves are open.
  • Page 80 4.7.4 Procedure Water pressure switch connection on Ensure the switch is connected properly main PCB is lost Make sure the water pressure is enough, there is no air in the water piping and the Water pressure is insufficient system is vented. Water pressure switch is damaged Replace the water pressure switch Replace main PCB...
  • Page 81 4.8 EC Troubleshooting 4.8.1 Digital display output 4.8.2 Description  EC indicates that the number of slave units detected by master unit has decreased.  All units stop running.  Error code is only displayed on the user interface. 4.8.3 Possible causes ...
  • Page 82 4.8.4 Procedure Some units in the system are Power on all the units powered off The power supply is abnormal Check the power supply equipment Troubleshoot as for an E2 error Notes: Check digital display on the main PCB. If digital display is on, the main PCB is powered on, if digital display is off, the main PCB is powered off. For size 16.2-35.2 L, refer to Figure 4-2.1 in Part 4, 2.2 “Main PCB”...
  • Page 83 4.9 EH Troubleshooting 4.9.1 Digital display output 4.9.2 Description  EH indicates system self-check in the factory, it will not display in the normal operating. ---------------------------------------------------------------------- ---------------------------------------------------------------------...
  • Page 84 4.10 P0 Troubleshooting 4.10.1 Digital display output 4.10.2 Description  Discharge pipe high pressure or discharge temperature switch protection. When the discharge pressure rises above 4.2MPa or discharge temperature rises above 115°C, the system displays P0 protection and all units stop running. When the discharge pressure falls below 3.2MPa or discharge temperature fall below 90°C, P0 is removed and normal operation resumes.
  • Page 85 4.10.4 Procedure High pressure switch or discharge Ensure High pressure switch or discharge temperature switch connection on main temperature switch are connected PCB is lost properly High pressure switch or discharge Replace the high pressure switch or temperature switch have short-circuited discharge temperature switch or failed The high pressure side is blocked, caused...
  • Page 86 4.11 P1 Troubleshooting 4.11.1 Digital display output 4.11.2 Description  P1 indicates suction pipe low pressure protection. When the suction pressure falls below 0.14MPa, the system displays P1 protection and all units stop running. When the pressure rises above 0.3MPa, P1 is removed and normal operation resumes.
  • Page 87 4.11.4 Procedure Insufficient refrigerant caused by Add refrigerant or inspect the system for refrigerant leakage leaks The low pressure side is blocked, caused Inspect the system and fix the error. If the by crushed or bent pipe, blocked EXV, or filter is blocked by ice, the piping should dirty filter be cleaned...
  • Page 88 4.12 P4, P5 Troubleshooting 4.12.1 Digital display output 4.12.2 Description  P4 indicates current protection on Phase A of system A.  P5 indicates current protection on Phase A of system B.  When the compressor current rises above the protection value 24A, the system displays P4 or P5 protection and all units stop running.
  • Page 89 4.12.4 Procedure P4/P5 The power supply is abnormal Check the power supply equipment Discharge part of the refrigerant. Add oil Excess refrigerant if it leaks during discharge process Flush all refrigerant then vacuum the System contains air or nitrogen system and recharge refrigerant. Add oil to the system if it leaks The condenser heat exchange is poor Inspect the system and fix the error...
  • Page 90 4.13 P6 Troubleshooting 4.13.1 Digital display output 4.13.2 Description  P6 indicates compressor inverter module protection.  When P6 error occurs, a manual system restart is required before the system can resume operation. The cause of P6 error should be addressed promptly in order to avoid system damage. ...
  • Page 91 Table 4-4.1: Specific error codes for error xH4 Specific error code Content Inverter module protection DC bus low voltage protection DC bus high voltage protection MCE error Zero speed protection Phase sequence error Compressor frequency variation greater than 15Hz within one second protection Actual compressor frequency differs from target frequency by more than 15Hz protection Notes: 1.
  • Page 92 4.13.5 First troubleshooting step To troubleshoot xP6 errors, firstly ensure that the DC bus wire is connected correctly. The DC bus wire should run from the N terminal on the inverter module, through the current sensor (in the direction indicated by the arrow on the current sensor), and end at the N terminal on the DC filter board for size 10.1-14.1.
  • Page 93 Figure 4-4.4: Measuring resistances among compressor Figure 4-4.5: Measuring resistances between compressor terminals terminals and ground  If the resistances are normal, go to Step 2. Step 2: Check inverter module  The DC voltage between terminals P1 and N1 should be 1.414 times the local power supply voltage. The DC voltage between terminals P and N should be 537-586V (power supply voltage specification: 380~415V 3N~).
  • Page 94 4.13.7 xL1/xL4 troubleshooting Step 1: Check inverter module  Check the DC voltage between terminals P and N. The normal value is 537-586V (power supply voltage specification: 380~415V 3N~). If the voltage is lower than 300V, go to Step 2. Figure 4-4.7: Inverter module terminals ---------------------------------------------------------------------- ---------------------------------------------------------------------...
  • Page 95 Step 2: Check rectifier wiring circuit  If the wires are loosened, fasten the wires. If the wires are OK, replace the main PCB. Figure 4-4.8: Rectifier and AC filter board in electric control box Check AC filter board wiring Check drive board input wiring 4.13.8 xL2 troubleshooting Step 1: Check inverter module...
  • Page 96 4.13.9 xL8/xL9 troubleshooting Step 1: Check compressor  The normal resistances of the inverter compressor are 0.3-2Ω among U V W and in MΩ range/infinite between each of U V W and ground. If any of the resistances differ from these specifications, the compressor has malfunctioned. ...
  • Page 97 4.13.10 Compressor replacement procedure Figure 4-4.10: Draining oil from a compressor Step 1: Remove faulty compressor and remove oil  Remove the faulty compressor from the unit.  Before removing the oil, shake the compressor so as to not allow impurities to remain settled at the bottom.
  • Page 98  If the oil drained from the faulty compressor is spoiled in Step 3, replace the faulty compressor and other compressor in the system. ( size 10.1-14.1 has one compressor; size 16.2-35.2 has two compressors ) Step 7: Vacuum drying and refrigerant charging ...
  • Page 99 4.14 P7 Troubleshooting 4.14.1 Digital display output 4.14.2 Description  High temperature protection of air side heat exchanger refrigerant outlet temperature sensor or air side heat exchanger refrigerant total outlet temperature sensor in cooling mode. When the air side heat exchanger refrigerant outlet temperature is higher than 60°C or air side heat exchanger refrigerant total outlet temperature is higher than 61°C for more than 3 seconds, the system displays P7 protection and all units stop running.
  • Page 100 4.14.4 Procedure Air side heat exchanger refrigerant outlet Ensure the temperature sensor is temperature sensor or air side heat connected properly exchanger refrigerant total outlet temperature sensor is loosened Fan motor wiring connection is Ensure motor wiring wrong connected properly Air side heat exchanger refrigerant outlet temperature sensor or air side heat exchanger refrigerant total outlet...
  • Page 101 4.15 P9 Troubleshooting 4.15.1 Digital display output 4.15.2 Description  High temperature difference between water side heat exchanger water inlet and water outlet temperatures protection.  All units stop running.  Error code is displayed on main PCB and user interface. 4.15.3 Possible causes ...
  • Page 102 4.15.4 Procedure Water side heat exchanger water inlet / Ensure the temperature sensor is outlet temperature sensor is loosened connected properly Water side heat exchanger water inlet / outlet temperature sensor has Replace the temperature sensor short-circuited or failed Water piping contains air Purge air from the water system The water flow rate is not sufficient, caused by crushed or bent water piping,...
  • Page 103 4.16 Pb Troubleshooting 4.16.1 Digital display output 4.16.2 Description  Water side heat exchanger anti-freeze protection.  All units stop running.  Error code is displayed on main PCB and ANTI.FREEZE icon is displayed on user interface. 4.16.3 Possible causes ...
  • Page 104 4.17 PC Troubleshooting 4.17.1 Digital display output 4.17.2 Description  Water side heat exchanger low pressure protection.  All units stop running.  Error code is displayed on main PCB and user interface. 4.17.3 Possible causes  Low pressure switch not connected properly or has malfunctioned. ...
  • Page 105 WiSAN-YSE1 Service Manual 4.17.4 Procedure Low pressure sensor connection on main Ensure the sensor is connected properly PCB is loosened Low pressure sensor has short-circuited Replace the sensor or failed Insufficient refrigerant caused by Add refrigerant or inspect the system for refrigerant leakage leaks The low pressure side is blocked, caused...
  • Page 106 WiSAN-YSE1 Service Manual 4.18 PH Troubleshooting 4.18.1 Digital display output 4.18.2 Description  Ambient temperature too high protection in heating mode.  All units stop running.  Error code is displayed on main PCB and user interface. 4.18.3 Possible causes ...
  • Page 107 WiSAN-YSE1 Service Manual 4.18.4 Procedure T4 temperature sensor connection on Ensure the sensor is connected properly main PCB is loosened T4 temperature sensor has Replace the sensor short-circuited or failed Replace main PCB Notes: Temperature detection is port CN1 on the main PCB (labeled 10 in in Figure 4-2.1 in Part 4, 2.2 “Main PCB”) . Measure sensor resistance.
  • Page 108 WiSAN-YSE1 Service Manual 4.19 PE Troubleshooting 4.19.1 Digital display output 4.19.2 Description  Water side heat exchanger low temperature protection.  All units stop running.  Error code is displayed on main PCB and user interface. 4.19.3 Possible causes  Temperature sensor not connected properly or has malfunctioned. ...
  • Page 109 WiSAN-YSE1 Service Manual 4.19.4 Procedure Taf temperature sensor connection on Ensure the sensor is connected properly main PCB is loosened Taf temperature sensor has Replace the sensor short-circuited or failed Insufficient refrigerant caused by Add refrigerant or inspect the system for refrigerant leakage leaks The low pressure side is blocked, caused...
  • Page 110 WiSAN-YSE1 Service Manual 4.20 PL/C7 Troubleshooting 4.20.1 Digital display output 4.20.2 Description  PL indicates inverter module temperature protection. When the main inverter module temperature rises above 82 the system displays PL protection and all the units stop running. When the inverter module temperature drops below 60°C, the compressor enters re-start control ...
  • Page 111 WiSAN-YSE1 Service Manual 4.20.4 Procedure PL/C7 The inverter module heat sink is blocked Clean or replace the heatsink or dirty The screws connecting the heatsink to Tighten the screws and make sure the the inverter module are loosened heatsink is well-connected Cooling Pipe temperature higher than 55 Refrigerant cooling pipe is blocked degree...
  • Page 112 WiSAN-YSE1 Service Manual 4.21 PU/FF Troubleshooting 4.21.1 Digital display output 4.21.2 Description  1PU/FF indicates fan module A protection.  2PU /FF indicates fan module B protection.  When PU error occurs 10 times in 120 minutes, FF will display, a manual system restart is required before the system can resume operation.
  • Page 113 WiSAN-YSE1 Service Manual 4.21.4 Procedure PU/FF Some power wires or communication Ensure power and communication wires wires of fan module are not connected are connected properly properly Remove obstruction or replace the fan The fan motor is blocked or has failed motor The power supply is abnormal Check the power supply equipment...
  • Page 114 WiSAN-YSE1 Service Manual 4.22 F0 Troubleshooting 4.22.1 Digital display output In the error code, 1 representing compressor system A and 2 representing compressor system B. 4.22.2 Description  1F0 indicates a communication error between the main control chip and the compressor A inverter driver chip. ...
  • Page 115 WiSAN-YSE1 Service Manual Notes: Compressor inverter module address is set through dial switch S7 on the inverter module. The compressor inverter module A/B location refers to the wiring diagram. S7 on inverter module Inverter module address 00 for compressor inverter module A 01 for compressor inverter module B Communication wire from outdoor main PCB CN65 to inverter module CN8/CN9.
  • Page 116 WiSAN-YSE1 Service Manual 4.23 H5 Troubleshooting 4.23.1 Digital display output 4.23.2 Description  Abnormal power supply voltage.  All units stop running.  Error code is only displayed on main PCB and user interface. 4.23.3 Possible causes  Unit power supply voltage at or above 260V or drops below 165V or a phase is missing. ...
  • Page 117 WiSAN-YSE1 Service Manual 4.23.4 Procedure ODU power supply voltage at or above 260V or drops below 165V or a Provide normal power supply phase is missing Wires between outdoor main PCB, AC filter boards and electric control box Ensure the wires are connected properly power supply terminals are loosened High voltage circuit error has occurred, such as the compressor has...
  • Page 118 WiSAN-YSE1 Service Manual 4.24 F6 Troubleshooting 4.24.1 Digital display output 4.24.2 Description  DC bus voltage protection.  Only occurred in standby status.  Error code is displayed on main PCB and user interface. 4.24.3 Possible causes  Abnormal power supply voltage ...
  • Page 119 4.25 HE Troubleshooting 4.25.1 Digital display output 4.25.2 Description  Electronic expansion valve connection error.  All units stop running.  Error code is only displayed on the unit with the error. 4.25.3 Possible causes  Electronic expansion valve coil not connected properly or has malfunctioned. ...
  • Page 120 4.25.4 Procedure Electronic expansion valve coil Ensure the sensor is connected properly connection on main PCB is loosened Electronic expansion valve coil has Replace the EXV malfunctioned Replace main PCB Notes: Electronic expansion valve coil connections are ports CN70 CN71 CN72 on the main PCB (labeled 16 in Figure 4-2.1 in Part 4, 2.2 “Main PCB”). The normal resistances between EXV coil wiring terminals RED and white / yellow / orange / blue are 40-50Ω.
  • Page 121 4.26 F2 Troubleshooting 4.26.1 Digital display output 4.26.2 Description  Insufficient protection of discharge superheat.  All units stop running.  Error code is only displayed on main PCB and user interface. 4.26.3 Possible causes  Discharge pipe temperature sensor connected properly or has malfunctioned. ...
  • Page 122 4.26.4 Procedure Discharge temperature sensor Ensure the sensor is connected properly connection on main PCB is loosened Temperature or pressure sensor has Replace the sensor short-circuited or failed Electronic expansion valve coil Ensure the valve is connected properly connection on main PCB is loosened Electronic expansion valve coil has Replace the EXV malfunctioned...
  • Page 123 4.27 F4 Troubleshooting 4.27.1 Digital display output 4.27.2 Description  When a L0 or L1 error occurs 3 times in 60 minutes, F4 will display, a manual system restart is required before the system can resume operation. 4.27.3 Possible causes ...
  • Page 124 4.28 FP Troubleshooting 4.28.1 Digital display output 4.28.2 Description  FP indicates pump in a combination system dial to different status. When the FP displayed, a manual system restart is required before the system can resume operation.  All units stop running. ...
  • Page 125 4.29 P3 Troubleshooting 4.29.1 Digital display output 4.29.2 Description  High temperature protection of ambient temperature sensor in cooling mode. When the ambient temperature is higher than 65°C, the system displays P3 protection and all units stop running. When the ambient temperature returns drops below 58°C, P3 is removed and normal operation resumes.
  • Page 126 4.29.4 Procedure Ambient temperature sensor is Ensure the temperature sensor is loosened connected properly Fan motor wiring connection is Ensure fan motor wiring is wrong connected properly Ambient temperature sensor has Replace the temperature sensor short-circuited or failed The fan or fan motor is blocked or Inspect the system and fix the error damaged Inspect the system and fix the error...
  • Page 127 5 Appendix to Part 5 5.1 Temperature Sensor Resistance Characteristics Table 5-5.1: Outdoor ambient temperature sensor and outdoor heat exchanger or plate heat exchanger temperature sensor resistance characteristics Temperature Resistance Temperature Resistance Temperature Resistance Temperature Resistance (°C) (kΩ) (°C) (kΩ) (°C) (kΩ) (°C)
  • Page 128 Table 5-5.2: Compressor top temperature sensor and discharge pipe temperature sensor resistance characteristics Temperature Temperature Temperature Temperature Resistance Resistance Resistance Resistance (kΩ) (kΩ) (kΩ) (kΩ) (°C) (°C) (°C) (°C) 542.7 68.66 13.59 3.702 511.9 65.62 13.11 3.595 483.0 62.73 12.65 3.492 455.9 59.98...
  • Page 129 Table 5-5.3: Inverter module temperature sensor resistance characteristics Temperature Temperature Temperature Temperature Resistance Resistance Resistance Resistance (kΩ) (kΩ) (kΩ) (kΩ) (°C) (°C) (°C) (°C) 971.4 109.0 19.70 5.000 912.8 103.9 18.97 4.855 858.2 99.02 18.26 4.705 807.3 94.44 17.59 4.566 759.7 90.11 16.94...
  • Page 130 5.2 Normal Operating Parameters of Refrigerant System Under the following conditions, the operating parameters given in Tables 5-5.4 and 5-5.5 should be observed:  If the outdoor ambient temperature is high, the system is being run in normal cooling mode with the following settings: temperature 5°C.
  • Page 131 WSAN-YSi Service Manual 6 - ADJUSTMENTS UNLOCK To lockout / unlock.   To modify current setpoint MENU To open the various menus from the HOME screen To move the cursor, change the selection or change the set value. The parameter ...
  • Page 132 WSAN-YSi Service Manual Menu structure Press “ ” for 3 seconds to unlock the keypad. Setting PROJECT MENU (pwd: 5432) ◆ Entering the password: Select "PROJECT MENU", and press " " to enter the menu. The screen prompts the user to enter the password, as shown below: Set unit air-conditioning: Press "▼"...
  • Page 133 WSAN-YSi Service Manual Press "▲" or "▼" to select item to be set and press “◄” or “ ►” to set value. Press “ ” to confirm. Back to homepage if there is no operation within 60s. Detailed setup information: Setting range T_FROST 20∽180min...
  • Page 134 WSAN-YSi Service Manual ◆ Inverter pump output setting: △PAF 0∽0.2MPa Select “INV PUMP RATIO” and entry the following HISTORICAL SETTING 04/06/2020 12:00A page to select pump: use in the case of multiple HISTORICAL SETTING 04/06/2020 12:00A pumps, do not send instructions for single pump. HISTORICAL SETTING 04/06/2020 12:00A ◆...
  • Page 135 WSAN-YSi Service Manual Press "▲" or "▼" to select “SELECT ADDRESS” and ◆ State query press “◄” or “►” to select address value. Press "▲" or "▼" to select clear or not, and press “◄” or “►” to Press "▲" or "▼" to select “STATE QUERY” under select YES or NO, and press “...
  • Page 136 WSAN-YSi Service Manual ◆ Heat control HEAT1 means pipe electric heating in cooling/heating mode. HEAT2 means tank electric heating or gas boiler in DHW mode. Press "▲" or "▼" to select “HEAT CONTROL” under “SERVICE MENU” page. Press “ ” and enter Press "▲"...
  • Page 137 WSAN-YSi Service Manual Parameter setting requirements are as follows: Default Adjustment range value range PUMP ON TIME 5∽60min PUMP OFF TIME 0∽60min ---------------------------------------------------------------------- ---------------------------------------------------------------------...
  • Page 138 WSAN-YSi Service Manual ◆ Manual Defrost: Press "▲" or "▼" to select “MANUAL DEFROST” under “SERVICE MENU” page. Press “ ” and enter submenu. Press “◄” or “►” to set value. Press “ ” to confirm or “ ” to go back. ◆...
  • Page 139 WSAN-YSi Service Manual 7 How to install the Inverter board: 1. Open the front panel of the electric control box before installing the Inverter board, take a picture of the original settings and wiring positions, and record the position of the cables and the terminals; 2.
  • Page 140 WSAN-YSi Service Manual ② After coating the thermal grease surface and before installation, please keep the two heat dissipation surfaces free from any attachments to avoid impurities adhering to the heat dissipation surface and causing poor heat dissipation. ③ Every time an inverter board with thermal grease is installed, please clean both sides of the thermal grease before fixing the board, and re-lay the thermal grease.
  • Page 141 WSAN-YSi Service Manual Pre-tightened sequence:①→②→③→④ Final fastening sequency:①→②→③→④ The fixing torque value of wiring screw on board is determined according to the size of screw, where M4 reference torque 1.0- 1.2 Nm, M5 reference torque 1.5- 1.8 Nm. The above torque requirements are tightening torques. If pre-tightening is required according to actual assembly requirements, the pre-tightening torque is 20%-30% of the tightening torque 8.
  • Page 142 WSAN-YSi Service Manual ---------------------------------------------------------------------- ---------------------------------------------------------------------...
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  • Page 145 CLIVET SPA Via Camp Lonc 25, Z.I. Villapaiera - 32032 Feltre (BL) - Italy Tel. + 39 0439 3131 - Fax + 39 0439 313300 - info@clivet.it www.clivet.com...

This manual is also suitable for:

Wisan-yse1 14.1Wisan-yse1 16.2Wisan-yse1 22.2Wisan-yse1 30.2Wisan-yse1 35.2
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