mundoclima Aerotherm V17 Series Service Manual
  1. Manuals
  2. Brands
  3. mundoclima Manuals
  4. Air Conditioner
  5. Aerotherm V17 Series
  6. Service manual

mundoclima Aerotherm V17 Series Service Manual

Bibloc unit
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
BIBLOC UNIT - AEROTHERM V17
Service Manual
2nd Version
Thank you very much for purchasing our product.
Before using your unit, please read this manual carefully
SO30160 to SO30172
and keep it for future reference.
English
www.mundoclima.com

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the Aerotherm V17 Series and is the answer not in the manual?

Questions and answers

Related Manuals for mundoclima Aerotherm V17 Series

Summary of Contents for mundoclima Aerotherm V17 Series

  • Page 1 BIBLOC UNIT - AEROTHERM V17 Service Manual 2nd Version Thank you very much for purchasing our product. Before using your unit, please read this manual carefully SO30160 to SO30172 and keep it for future reference. English www.mundoclima.com...
  • Page 2 MUNDOCLIMA AEROTHERM V17 - BIBLOC CONTENTS Part 1 General Information ................3 Part 2 Component Layout and Refrigerant Circuits ........5 Part 3 Control ....................13 Part 4 Diagnosis and Troubleshooting ............27 201703...
  • Page 3 MUNDOCLIMA AEROTHERM V17 - BIBLOC 201703...

  • Page 4: General Information

    MUNDOCLIMA AEROTHERM V17 - BIBLOC Part 1 General Information 1 Unit Capacities ................... 4 2 External Appearance .................. 5 201703...
  • Page 5 MUNDOCLIMA AEROTHERM V17 - BIBLOC 1 Unit Capacities 1.1 Outdoor Unit Capacities Table 1-1.1: Capacity range Capacity 10kW 12kW 14kW 16kW BIBLOC SO30160 SO30162 SO30164 SO30161 SO30163 SO30165 SO30166 V17 (1Ph) Capacity 12kW 14kW 16kW BIBLOC SO30167 SO30168 SO30169 V17 (3Ph) 1.2 Hydronic Box Capacities...
  • Page 6 MUNDOCLIMA AEROTHERM V17 - BIBLOC 2 External Appearance 2.1 Outdoor Unit Appearance Table 1-2.1: Outdoor unit appearance 4/6kW 10/12/14/16kW 2.2 Hydronic Box Appearance Table 1-2.1: Hydronic box appearance 201703...

  • Page 7: Component Layout And

    MUNDOCLIMA AEROTHERM V17 - BIBLOC Part 2 Component Layout and Refrigerant Circuits Layout of Functional Components ............6 Piping Diagrams ..................9 Refrigerant Flow Diagrams ..............12 201703...

  • Page 8: Part 3 Control

    MUNDOCLIMA AEROTHERM V17 - BIBLOC 1 Layout of Functional Components 1.1 Outdoor Unit Layout Models 4 to 8kW Figure 2-1.1: top view Electronic expansion 4-way valve valve Liquid side stop valve Gas side stop valve Figure 2-1.2: front view Air side heat exchanger...
  • Page 9 MUNDOCLIMA AEROTHERM V17 - BIBLOC Models 10 to 16kW Figure 2-1.4: top view 4-way valve Gas side stop valve Liquid side stop valve Figure 2-1.5: front view Air side heat exchanger Upper fan motor Lower fan motor Electric control box...
  • Page 10 MUNDOCLIMA AEROTHERM V17 - BIBLOC 1.2 Hydronic Box Layout Figure 2-1.6: oblique view Air purge valve Water side heat exchanger Backup electric heater Expansion vessel Safety valve Electric control box Water flow switch Water pump Manometer 201703...
  • Page 11 MUNDOCLIMA AEROTHERM V17 - BIBLOC 2 Piping Diagrams 2.1 Outdoor Unit Piping Models 4 to 8kW Figure 2-2.1: piping diagram Legend Compressor Electronic expansion valve Discharge pipe temperature sensor Accumulator Outdoor ambient temperature sensor Stop valve (liquid side) Air side heat exchanger refrigerant outlet temperature sensor...
  • Page 12 MUNDOCLIMA AEROTHERM V17 - BIBLOC Models 10 to 16kW Figure 2-2.2: piping diagram Legend Compressor Accumulator Discharge pipe temperature sensor Stop valve (liquid side) Outdoor ambient temperature sensor Stop valve (gas side) Air side heat exchanger refrigerant outlet temperature sensor...
  • Page 13 MUNDOCLIMA AEROTHERM V17 - BIBLOC 2.2 Hydronic box Piping Figure 2-2.1: piping diagram Legend Air purge valve Water outlet Backup electric heater Water inlet Water side heat exchanger refrigerant outlet (gas pipe) temperature Expansion vessel 13.1 sensor Water side heat exchanger refrigerant inlet (liquid pipe) temperature Refrigerant liquid side 13.2...
  • Page 14 MUNDOCLIMA AEROTHERM V17 - BIBLOC 3 Refrigerant Flow Diagrams Heating and domestic hot water operation Figure 2-3.1: Refrigerant flow during heating or domestic hot water operation Cooling and defrosting operation Figure 2-3.2: Refrigerant flow during cooling and defrosting operations 201703...

  • Page 15: Table Of Contents

    MUNDOCLIMA AEROTHERM V17 - BIBLOC Part 3 Control 1 Stop Operation ..................14 2 Standby Control ..................14 3 Startup Control ..................15 4 Normal Operation Control ............... 17 5 Protection Control ................... 19 6 Special Control ..................22 7 Role of Temperature Sensors in Control Functions ........24...

  • Page 16: Stop Operation

    MUNDOCLIMA AEROTHERM V17 - BIBLOC 1 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 outdoor unit PCB digital displays and on the user interface.

  • Page 17: Startup Control

    MUNDOCLIMA AEROTHERM V17 - BIBLOC 3 Startup Control 3.1 Compressor Startup Delay Control In initial startup control and in restart control (except in oil return operation and defrosting operation), compressor startup is delayed such that a minimum of the set re-start delay time has elapsed since the compressor stopped, in order to prevent frequent compressor on/off and to equalize the pressure within the refrigerant system.
  • Page 18 MUNDOCLIMA AEROTHERM V17 - BIBLOC Figure 3-4.3: compressor startup program when Models 10 to 16kW ambient temperature is at or below 4°C Compressor rotation speed (rps) Target rotation speed 82rps 66rps 56rps 42rps 38rps 33rps 24rps Time (s) Notes: Once the first, 40-second stage of the program is complete, the program proceeds to the subsequent stages in a step-by-step fashion and exits when the target rotation speed has been reached.

  • Page 19: Normal Operation Control

    MUNDOCLIMA AEROTHERM V17 - BIBLOC 4 Normal Operation Control 4.1 Component Control during Normal Operation Table 3-5.1: Component control during heating and domestic hot water operations Wiring diagram Component Control functions and states 4-8kW 10-16kW label Controlled according to load requirement from...
  • Page 20 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.4 Four way Valve Control The four-way valve is used to change the direction of refrigerant flow through the water side heat exchanger in order to switch between cooling and heating/DHW operations. Refer to Figures 2-3.1 and 2-3.2 in Part 2, 3 “Refrigerant Flow Diagrams”.

  • Page 21: Protection Control

    MUNDOCLIMA AEROTHERM V17 - BIBLOC 5 Protection Control 5.1 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 >...
  • Page 22 MUNDOCLIMA AEROTHERM V17 - BIBLOC the discharge temperature drops below 90°C, the compressor enters re-start control. Figure 3-6.4:Low discharge temperature protection control Normal operation Discharge temperature ≤ 15°C for Discharge temperature ≥ 27°C more than 5 minutes Low discharge temperature protection, error code EA is displayed When the discharge temperature is at or below 15°C for more than 5 minutes, the system displays EA protection and the...
  • Page 23 MUNDOCLIMA AEROTHERM V17 - BIBLOC refrigerant system restarts once the compressor re-start delay has elapsed. When the phase voltage is below 172V, the system displays H7 protection and the unit stops running. When the AC voltage rises to more than 180V, the refrigerant system restarts once the compressor re-start delay has elapsed.

  • Page 24: Special Control

    MUNDOCLIMA AEROTHERM V17 - BIBLOC 6 Special Control 6.1 Oil Return Operation In order to prevent the compressor from running out of oil, the oil return operation is conducted to recover oil that has flowed out of the compressor and into the refrigerant piping. When the oil return operation is being conducted, the outdoor unit refrigerant system main PCB displays code d0.
  • Page 25 MUNDOCLIMA AEROTHERM V17 - BIBLOC Table 3-7.3: Component control during defrosting operation Wiring diagram Component 4-8kW 10-16kW Control functions and states label Inverter compressor COMP Runs at defrosting operation rotation speed DC fan motor / Upper DC fan motor FAN1 / FAN_UP...

  • Page 26: Role Of Temperature Sensors In Control Functions

    MUNDOCLIMA AEROTHERM V17 - BIBLOC 7 Role of Temperature Sensors in Control Functions Figure 3-7.1: Location of the temperature sensors on M-Thermal Split systems Notes: The names and functions of the temperature sensors labelled 1 to 12 in this figure are detailed in Table 3-7.1.
  • Page 27 MUNDOCLIMA AEROTHERM V17 - BIBLOC Table 3-7.1: Names and functions of the temperature sensors Sensor Number Sensor name Mode Control functions code ƒ Electronic expansion valve control Heating ƒ Discharge superheat control Discharge pipe temperature ƒ Electronic expansion valve control sensor ƒ...
  • Page 28 MUNDOCLIMA AEROTHERM V17 - BIBLOC 201703...

  • Page 29: Mundoclima Aerotherm V17 - Bibloc Part

    MUNDOCLIMA AEROTHERM V17 - BIBLOC Part 4 Diagnosis and Troubleshooting 1 Electric Control Box Layout ............... 28 2 PCBs ......................31 3 Error Code Table ..................45 4 Troubleshooting ..................47 5 Appendix to Part 4 ................... 98 201703...
  • Page 30 MUNDOCLIMA AEROTHERM V17 - BIBLOC 1 Electric Control Box Layout 1.1 Outdoor Unit Electric Control Box Layout Models 4 to 8kW Figure 4-1.1: electric control box Power supply terminals Communication terminal blocks Main PCB Inverter module Capacitor Transformer Models 10 to 16kW (1Ph) Figure 4-1.3:...
  • Page 31 MUNDOCLIMA AEROTHERM V17 - BIBLOC Models 10 to 16kW (3Ph) Figure 4-1.4: electric control box front view – top layer Main PCB Communication terminal blocks Power supply terminals Figure 4-1.5: electric control box front view Figure 4-1.6: electric control box side view –...
  • Page 32 MUNDOCLIMA AEROTHERM V17 - BIBLOC 1.2 Hydronic Box Electric Control Box Layout Figure 4-1.7: (1Ph) electric control box Main PCB Backup electric heater contactors Tank electric heater circuit breaker Backup electric heater circuit breaker Transformer Lighting filter board Power supply terminals...
  • Page 33 MUNDOCLIMA AEROTHERM V17 - BIBLOC 2 PCBs 2.1 Outdoor Unit PCBs There are three types of main PCB: one for the 4kW to 8kW single phase models, one for the 10kW to 16kW single phase models and one for the 12kW to 16kW three phase models. In addition to the main PCB, all models have an inverter module and the three phase models also have a filter board.
  • Page 34 MUNDOCLIMA AEROTHERM V17 - BIBLOC Table 4-2.1:outdoor unit main PCB Label in Figure Code Content 4-2.2 CN28 Bridge rectifier input connection L to inverter module Refrigerant system main PCB connection CN27 Bridge rectifier input connection N to inverter module CN10...
  • Page 35 MUNDOCLIMA AEROTHERM V17 - BIBLOC Figure 4-2.2: outdoor unit inverter module Table 4-2.2: outdoor unit inverter module Label in Code Content Figure 4-2.3 CN101, Connections to main PCB for refrigerant system CN105 U V W Compressor connections IPM module input port N...
  • Page 36 MUNDOCLIMA AEROTHERM V17 - BIBLOC Models 10 to 16kW (1Ph) Figure 4-2.3: outdoor unit main PCB 14 13 Notes: Label descriptions are given in Table 4-2.3. 201703...
  • Page 37 MUNDOCLIMA AEROTHERM V17 - BIBLOC Table 4-2.3: outdoor unit main PCB Label in Code Content Figure 4-2.4 Yellow: High pressure switch connection CN12 Red: Low pressure switch connection CN24 Suction pipe temperature sensor (Th) connection CN28 Pressure sensor connection Discharge pipe temperature sensor (Tp) connection...
  • Page 38 MUNDOCLIMA AEROTHERM V17 - BIBLOC Figure 4-2.4: outdoor unit inverter module PCB A Table 4-2.5: outdoor unit inverter module Label in Code Content Figure 4-2.5 Reserved IPM module input port N Compressor connections PFC module output port N PFC module output port P...
  • Page 39 MUNDOCLIMA AEROTHERM V17 - BIBLOC Models 10 to 16kW (3Ph) Figure 4-2.5: outdoor unit main PCB 21 20 Notes: Label descriptions are given in Table 4-2.5. 201703...
  • Page 40 MUNDOCLIMA AEROTHERM V17 - BIBLOC Label in Figure 4-2.5 Code Content CN250 Power supply for the main PCB CN36 Port for pressure sensor Port for suction temperature sensor Port for discharge temperature White: Outdoor ambient temperature sensor (T4) connection Black: Air side heat exchanger refrigerant outlet temperature sensor...
  • Page 41 MUNDOCLIMA AEROTHERM V17 - BIBLOC Figure 4-2.6: outdoor unit inverter module Label in Figure 4-2.6 Code Content +15V port MCU connection Compressor connections IPM module input port P IPM module input port N Refrigerant system main PCB connection 201703...
  • Page 42 MUNDOCLIMA AEROTHERM V17 - BIBLOC Figure 4-2.7: outdoor unit filter board Label in Figure 4-2.7 Code Content Power supply L3 Power supply L2 Power supply L1 Power supply N GND_1 Ground wire Power supply for load such as 4-way valve and crank heater of...
  • Page 43 MUNDOCLIMA AEROTHERM V17 - BIBLOC 2.2 Hydronic Box PCB Figure 4-2.8: Hydronic box main PCB Notes: Label descriptions are given in Table 4-2.8. 201703...
  • Page 44 MUNDOCLIMA AEROTHERM V17 - BIBLOC Table 4-2.8: Main PCB for hydronic box Label in Code Content Figure 4-2.1 Solar energy signal input connection Transformer power output CN36 Power supply to user interface CN12 Remote switch connection Water flow switch connection...
  • Page 45 MUNDOCLIMA AEROTHERM V17 - BIBLOC 2.3 Check Buttons 2.3.1 Refrigerant system SW2 check button Button SW2 is used to check the parameters of the refrigerant system. Refer to Table 4-2.1 First, press Button SW2 for 3 seconds and the first parameter (operating mode) will be displayed. Then, on each subsequent press, the next parameter is displayed.
  • Page 46 MUNDOCLIMA AEROTHERM V17 - BIBLOC 2.3.2 Hydronic system SW4 check button Button SW4 is used to check the parameters of the hydronic system. Refer to Table 4-2.10. First, press Button SW4 for 3 seconds and the first parameter (operating mode) will be displayed. Then, on each subsequent press, the next parameter is displayed.

  • Page 47: Refrigerant Flow Diagrams

    MUNDOCLIMA AEROTHERM V17 - BIBLOC 3 Error Code Table Table 4-3.1: Error code table Error Content Displayed on Remarks code User interface and hydronic box E0, E8 Water flow failure main PCB User interface and outdoor unit Phase sequence error...
  • Page 48 MUNDOCLIMA AEROTHERM V17 - BIBLOC Table 4-3.1: Error code table (continued) Auxiliary heat source water outlet temperature sensor User interface and hydronic box Sensor T1B error main PCB Water side heat exchanger water outlet temperature User interface and hydronic box...
  • Page 49 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4 Troubleshooting 4.1 Warning Warning ƒ All electrical work must carried by competent and suitably qualified, certified 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 50 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.2 E0, E8 Troubleshooting 4.2.1 Digital display output 4.2.2 Description ƒ Water flow failure. ƒ E0 indicates E8 has displayed 3 times. When an E0 error occurs, a manual system restart is required before the system can resume operation.
  • Page 51 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.2.4 Procedure E0 / E8 Water flow switch connection on Ensure the switch is connected properly hydronic box main PCB is loose Check the water piping and valves. Make sure the water piping is clean, there is no...
  • Page 52 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.3 E1 Troubleshooting 4.3.1 Digital display output 4.3.2 Description ƒ Phase sequence error. ƒ Only applies to 3-phase models. ƒ M-Thermal Split stops running. ƒ Error code is displayed on outdoor unit main PCB and user interface.
  • Page 53 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.3.4 Procedure The phase sequence of the 3-phase Exchange any two of the 3 phase wires power supply is incrorrect Ensure all supply terminals are securely Some power supply terminals are loose fastened The power supply is abnormal...
  • Page 54 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.4 E2 Troubleshooting 4.4.1 Digital display output 4.4.2 Description ƒ Communication error between hydronic box and user interface. ƒ M-Thermal Split stops running. ƒ Error code is displayed on hydronic box main PCB and user interface.
  • Page 55 MUNDOCLIMA AEROTHERM V17 - BIBLOC 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...
  • Page 56 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.5 E3, E4, H2, H3, Ed, HA, H5, H9 Troubleshooting 4.5.1 Digital display output 4.5.2 Description ƒ E3 indicates a backup electric heater water outlet temperature sensor error. ƒ E4 indicates a domestic hot water tank temperature sensor error.
  • Page 57 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.5.4 Procedure E3 / E4 / H2 / H3 / Ed / HA / H5 / H9 Temperature sensor connection on Ensure the sensor is connected properly hydronic box main PCB is loose Temperature sensor has short-circuited...
  • Page 58 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.6 E5, E6, E9, EA Troubleshooting 4.6.1 Digital display output 4.6.2 Description ƒ E5 indicates an air side heat exchanger refrigerant outlet temperature sensor error. ƒ E6 indicates an outdoor ambient temperature sensor error. ƒ E9 indicates a suction pipe temperature sensor error.
  • Page 59 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.6.4 Procedure E5 / E6 / E9 / EA Temperature sensor connection on Ensure the sensor is connected properly outdoor unit main PCB is loose Temperature sensor has short-circuited Replace the sensor or failed Replace outdoor unit main PCB...
  • Page 60 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.7 EE Troubleshooting 4.7.1 Digital display output 4.7.2 Description ƒ Hydronic box main PCB EEPROM error. ƒ M-Thermal Split stops running. ƒ Error code is displayed on hydronic box main PCB and user interface. 4.7.3 Possible causes ƒ...
  • Page 61 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.8 HF Troubleshooting 4.8.1 Digital display output 4.8.2 Description ƒ Refrigerant system main PCB EEPROM error. ƒ M-Thermal Split stops running. ƒ Error code is displayed on outdoor unit main PCB and user interface. 4.8.3 Possible causes ƒ...
  • Page 62 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.9 H0 Troubleshooting 4.9.1 Digital display output 4.9.2 Description ƒ Communication error between outdoor unit main control chip and hydronic box main control chip. ƒ M-Thermal Split stops running. ƒ Error code is displayed on hydronic box main PCB, outdoor unit main PCB and user interface.
  • Page 63 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.10 H1 Troubleshooting 4.10.1 Digital display output 4.10.2 Description ƒ Communication error between outdoor unit main control chip and the inverter driver chip. ƒ M-Thermal Split stops running. ƒ Error code H1 is displayed on outdoor unit main PCB and user interface.
  • Page 64 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.11 H6, HH Troubleshooting 4.11.1 Digital display output 4.11.2 Description ƒ H6 indicates a DC fan error. ƒ HH indicates that H6 protection has occurred 10 times in 2 hours. When an HH error occurs, a manual system restart is required before the system can resume operation.
  • Page 65 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.11.4 Procedure H6 / HH Strong wind is blowing towards the Changer the outdoor unit’s installation fan, making the fan running in the wrong direction or build a shelter to protect the direction fan from strong wind...
  • Page 66 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.12 H7 Troubleshooting 4.12.1 Digital display output 4.12.2 Description ƒ Abnormal main circuit voltage. ƒ M-Thermal Split stops running. ƒ Error code is displayed on outdoor unit main PCB and user interface. 4.12.3 Possible causes ƒ...
  • Page 67 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.12.4 Procedure Power supply voltage is not within ±10% of rated voltage or a (on 3-phase models) Provide normal power supply phase is missing Wires between outdoor unit main PCB, AC filter board (on 3-phase models) and...
  • Page 68 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.13 H8 Troubleshooting 4.13.1 Digital display output 4.13.2 Description ƒ Pressure sensor error. ƒ M-Thermal Split stops running. ƒ Error code is displayed on outdoor unit main PCB and user interface. 4.13.3 Possible causes ƒ Pressure sensor not connected properly or has malfunctioned.
  • Page 69 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.14 P0, HP Troubleshooting 4.14.1 Digital display output 4.14.2 Description ƒ P0 indicates suction pipe low pressure protection. When the suction pressure falls below 0.05MPa, the system displays P0 protection and M-Thermal Split stops running. When the pressure rises above 0.15MPa, P0 is removed and normal operation resumes.
  • Page 70 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.14.4 Procedure P0 / PH 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...
  • Page 71 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.15 P1 Troubleshooting 4.15.1 Digital display output 4.15.2 Description ƒ Discharge pipe high pressure protection. When the discharge pressure rises above 4.4MPa, the system displays P1 protection and M-Thermal Split stops running. When the discharge pressure falls below 3.2MPa, P1 is removed and normal operation resumes.
  • Page 72 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.15.4 Procedure High pressure switch connection or Ensure the pressure switch is connected pressure sensor connection on outdoor properly unit main PCB is loose Pressure sensor has short-circuited or Replace the pressure sensor failed The high pressure side is blocked, caused...
  • Page 73 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.16 P3 Troubleshooting 4.16.1 Digital display output 4.16.2 Description ƒ Compressor current protection. ƒ When the compressor current rises above the protection value (Single phase 4/6kW models 18A, single phase 8kW model 20A, single phase 10 to 16kW models 31A, three phase models 15A), the system displays P3 protection and M-Thermal Split stops running.
  • Page 74 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.16.4 Procedure The power supply is abnormal Check the power supply equipment The condenser heat exchange is poor Inspect the system and fix the error The high pressure side is blocked, caused Inspect the system and fix the error...
  • Page 75 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.17 P4 Troubleshooting 4.17.1 Digital display output 4.17.2 Description ƒ Discharge temperature protection. ƒ When the compressor the discharge temperature rises above 115°C, the system displays P4 protection and M-Thermal Split stops running. When the discharge temperature falls below 83°C, P4 is removed and normal operation resumes.
  • Page 76 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.17.4 Procedure Discharge pipe temperature sensor Ensure the temperature sensor is connection on outdoor unit main PCB is connected properly loose Backup electric heater water outlet temperature sensor connection, domestic hot water tank temperature Ensure the temperature sensor is...
  • Page 77 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4-2.5 in Part 4, 2.1 “Outdoor Unit PCBs”). Backup electric heater water outlet temperature sensor and water side heat exchanger water outlet temperature sensor connections are port CN6 on the hydronic box main PCB (labeled 8 in Figure 4-2.1 in Part 4, 2.2 “Hydronic Box PCB”). Domestic hot water tank temperature sensor connection is port CN13 on the hydronic box main PCB (labeled 9 in Figure 4-2.1 in Part 4, 2.2 “Hydronic Box PCB”).
  • Page 78 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.18 P5 Troubleshooting 4.18.1 Digital display output 4.18.2 Description ƒ High temperature difference between water side heat exchanger water inlet and water outlet temperatures protection. ƒ M-Thermal Split stops running. ƒ Error code is displayed on hydronic box main PCB and user interface.
  • Page 79 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.18.4 Procedure Water side heat exchanger water inlet / Ensure the temperature sensor is outlet temperature sensor is loose connected properly Water side heat exchanger water inlet / outlet temperature sensor has Replace the temperature sensor...
  • Page 80 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.19 P6 Troubleshooting for single-phase models 4.19.1 Digital display output 4.19.2 Description ƒ Inverter module protection. ƒ M-Thermal Split stops running. ƒ Error code P6 is displayed on the user interface. Specific error code L0, L1, L2, L4, L5, L7, L8 or L9 is displayed on the outdoor unit main PCB.
  • Page 81 MUNDOCLIMA AEROTHERM V17 - BIBLOC Table 4-4.2: Errors indicated on LED1/2 LED1/2 flashing pattern Corresponding error Flashes 8 times and stops for 1 second, then repeats L0 - Inverter module protection Flashes 9 times and stops for 1 second, then repeats...
  • Page 82 MUNDOCLIMA AEROTHERM V17 - BIBLOC Figure 4-4.1: Replacing an inverter module Paint a layer of thermally conductive silica gel on the PFC module Paint a layer of thermally conductive silica gel on the IPM module Situation 2: L0 or L4 error appears immediately after the compressor starts up...
  • Page 83 MUNDOCLIMA AEROTHERM V17 - BIBLOC Situation 3: L0 or L4 error appears after the compressor has been running for a period of time and the compressor speed is over 60rps L0 / L4 Repaint the thermally conductive silica Inverter module has overheated...
  • Page 84 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.19.7 L1/L2 troubleshooting The normal DC voltage between terminals P and N on inverter module is 310V in standby and 380V when the fan motor is running. If the voltage is lower or higher than the normal voltage, the unit displays an L1 or L2 error.
  • Page 85 MUNDOCLIMA AEROTHERM V17 - BIBLOC Figure 4-4.3: Bridge rectifier Single or three phase AC power input DC power output: DC power output: Schematic diagram positive pole negative pole Situation 2: L1 or L2 error appears after the compressor has been running for a period of time and the compressor...
  • Page 86 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.20 P6 Troubleshooting for three-phase models 4.20.1 Digital display output 4.20.2 Description ƒ Inverter module protection. ƒ M-Thermal Split stops running. ƒ Error code P6 is displayed on the user interface. Specific error code L0, L1, L2, L4, L5, L7, L8 or L9 is displayed on the outdoor unit main PCB.
  • Page 87 MUNDOCLIMA AEROTHERM V17 - BIBLOC The specific error codes can also be obtained from the LED indicators LED1/LED2 on the outdoor unit main PCB. Refer to Figure 4-2.5 in Part 4, 2.1 “Outdoor Unit PCBs”. Table 4-4.4: Errors indicated on LED1/2...
  • Page 88 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.20.6 L0 troubleshooting Situation 1: L0 error appears immediately after the outdoor unit is powered-on Communication wire between outdoor Ensure communication wire is connected unit main PCB and inverter module (10 properly pins) not connected properly...
  • Page 89 MUNDOCLIMA AEROTHERM V17 - BIBLOC Situation 2: L0 error appears immediately after the compressor starts up DC bus wire is not connected properly Ensure DC bus wire is connected properly Compressor has malfunctioned Replace the compressor Replace the main PCB...
  • Page 90 MUNDOCLIMA AEROTHERM V17 - BIBLOC Situation 3: L0 error appears within 2 seconds of compressor start-up U V W wire between inverter module and Ensure U V W wire is connected properly compressor is not connected properly Communication port for connection to...
  • Page 91 MUNDOCLIMA AEROTHERM V17 - BIBLOC Condition 4: L0 error appears after the compressor has been running for a period of time and the compressor speed is over 60rps Repaint the thermally conductive silica Inverter module has overheated gel on the PFC and IPM modules (on the...
  • Page 92 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.20.7 L1/L2 troubleshooting Figure 4-4.7: P, N terminals voltage The normal DC voltage between terminals P and N on inverter module is 540V. If the voltage is lower than 300V, the unit displays an L1 error; if the voltage is higher than 800V, the unit displays an L2 error.
  • Page 93 MUNDOCLIMA AEROTHERM V17 - BIBLOC Check the +15V circuit according to corresponding wiring diagram. If CN5 on inverter module output voltage is not +15V means the inverter module is failed. If voltage output of inverter module is +15V means main PCB is failed.
  • Page 94 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.20.8 L4 troubleshooting Situation 1: L4 error appears immediately after the outdoor unit is powered-on Replace the main PCB Situation 2: L4 error appears after the compressor has been running for a period of time and the compressor speed is 20...
  • Page 95 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.21 Pb Troubleshooting 4.21.1 Digital display output 4.21.2 Description ƒ Water side heat exchanger anti-freeze protection. ƒ M-Thermal Split stops running. ƒ Error code is displayed on outdoor unit main PCB and ANTI.FREEZE icon is displayed on user interface.
  • Page 96 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.22 Pd Troubleshooting 4.22.1 Digital display output 4.22.2 Description ƒ High temperature protection of air side heat exchanger refrigerant outlet in cooling mode. When the air side heat exchanger refrigerant outlet temperature is higher than 62°C for more than 3 seconds, the system displays Pd protection and M-Thermal Split stops running.
  • Page 97 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.22.4 Procedure Air side heat exchanger refrigerant outlet Ensure the temperature sensor is temperature sensor is loose connected properly Air side heat exchanger refrigerant outlet temperature sensor has short-circuited Replace the temperature sensor or failed...
  • Page 98 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.23 PP Troubleshooting 4.23.1 Digital display output 4.23.2 Description ƒ Water side heat exchanger inlet temperature is higher than outlet temperature in heating mode. ƒ M-Thermal Split stops running. ƒ Error code is displayed on hydronic box main PCB and user interface.
  • Page 99 MUNDOCLIMA AEROTHERM V17 - BIBLOC 4.23.4 Procedure Water side heat exchanger water inlet / Ensure the temperature sensor is outlet temperature sensor is loose connected properly Water side heat exchanger water inlet / outlet temperature sensor has Replace the temperature sensor...
  • Page 100 MUNDOCLIMA AEROTHERM V17 - BIBLOC 5 Appendix to Part 4 5.1 Temperature Sensor Resistance Characteristics Table 4-5.1: Outdoor ambient temperature sensor, water side heat exchanger refrigerant inlet / outlet (liquid / gas pipe) temperature sensor, air side heat exchanger refrigerant out temperature sensor and suction pipe temperature sensor resistance characteristics...
  • Page 101 MUNDOCLIMA AEROTHERM V17 - BIBLOC Table 4-5.2: Compressor 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...
  • Page 102 MUNDOCLIMA AEROTHERM V17 - BIBLOC Table 4-5.3: Water side heat exchanger water inlet / outlet temperature sensor, backup heater exchanger outlet water temperature sensor and DHW temperature sensor resistance characteristics Temperature Temperature Temperature Temperature Resistance Resistance Resistance Resistance (kΩ) (kΩ) (kΩ)
  • Page 103 ASK FOR MORE INFORMATION Phone: (+34) 93 446 27 81 eMail: info@mundoclima.com TECHNICAL ASSISTANCE Phone: (+34) 93 652 53 57 www.mundoclima.com...

This manual is also suitable for:

So30161So30162So30163So30164So30165So30167 ... Show all

Table of Contents