IVT X Series Manual
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IVT X Series Manual

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X11-X15
6 720 619 265-18.1I
Fault tracing tree
6 720 643 196 (2010/02)

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Summary of Contents for IVT X Series

  • Page 1 X11-X15 6 720 619 265-18.1I Fault tracing tree 6 720 643 196 (2010/02)

  • Page 2: Table Of Contents

    Table of Contents Table of Contents Symbol explanations and safety instructions . . 3 Symbol explanations ....3 Safety instructions ....3 Rectify interference .

  • Page 3: Symbol Explanations And Safety Instructions

    Symbol explanations and safety instructions Symbol explanations and safety instructions Symbol explanations Safety instructions Warnings in the text are always marked by a Repairs warning triangle and grey background. B Repairs may only be carried out by an authorised serv- ice technician! B Switch off the main power switch before carrying out There are different warning levels depending on the...

  • Page 4: Rectify Interference

    Rectify interference Rectify interference General • First make a note of the present settings and restore them before leaving the appliance. Before fault tracing commences it is a good idea to • Cover the question at 1. (check step). Depending on establish a picture of the heat pump status: the appropriate answer (yes or no) search in the cor- B Check all temperatures in the main menu.

  • Page 5: Tripped Low Pressure Switch

    Rectify interference 2.3.2 Tripped low pressure switch 6 720 643 196-01.1I Description: Too low pressure in the cooling circuit. Automatic resetting of the pressostat, which must be acknowledged in the display. IMPORTANT! The cooling circuit must be frost protected down to at least -15 °C. Check Action Has the heat pump been stationary for a...
  • Page 6 Rectify interference 6 720 643 196-01.1I Description: Too low pressure in the cooling circuit. Automatic resetting of the pressostat, which must be acknowledged in the display. IMPORTANT! The cooling circuit must be frost protected down to at least -15 °C. Check Action B Check the flow in the collector circuit.

  • Page 7: Tripped High Pressure Switch

    Rectify interference 2.3.3 Tripped high pressure switch 6 720 643 196-02.1I Description: Too high pressure in the cooling circuit. Automatic resetting of the pressostat, which must be acknowledged in the display. Check Action B Manually operate G2 yes: Does the error message recur? Does G2 start? B Measure the connection on terminal yes:...
  • Page 8 Rectify interference 6 720 643 196-02.1I Description: Too high pressure in the cooling circuit. Automatic resetting of the pressostat, which must be acknowledged in the display. Check Action B Check sensors T3, T8 and T9. yes: B Compare the correct table value (ohm B Check whether the sensor is correctly positioned.
  • Page 9 Rectify interference 6 720 643 196-02.1I Description: Too high pressure in the cooling circuit. Automatic resetting of the pressostat, which must be acknowledged in the display. Check Action B Check that the HP switch trips at the yes: Does the error message recur? correct value (31 bar).

  • Page 10: High Hot Gas Temperature T6

    Rectify interference 2.3.4 High hot gas temperature T6 6 720 643 196-03.1I Description: Compressor temperature too high. Automatic resetting, which must be acknowledged in the dis- play. Check Action B Start the heat pump. yes: B Go to temperatures and look at T6. B Check the attachment of the T6, replace sensor if B Use a digital thermometer and meas- necessary.

  • Page 11: High Forward Flow T1

    Rectify interference 2.3.5 High forward flow T1 6 720 643 196-04.1I Description: The set value in Max limit heating system temperature +2K. Check Action B Go to temperatures and look at T1. yes: B Use a digital thermometer and meas- B Check the attachment of the T1, replace sensor if ure at the T1 sensor.
  • Page 12 Rectify interference 6 720 643 196-04.1I Description: The set value in Max limit heating system temperature +2K. Check Action B Check the temp. setting. yes: B Adjust the temperature setting. B Check set point value on T1. Does the error message recur? Is it higher than 65 °C? B Go to temperatures and check the yes:...

  • Page 13: High Temperature Difference Heating System

    Rectify interference 2.3.6 High temperature difference heating system water 6 720 643 196-05.1I Description: The temperature difference between T8 and T9 is greater than X, where X is calculated as a linear function of the compressor frequency. 20Hz=10K and 90Hz=18K. Check Action B Clean the dirt filter on the hot side.

  • Page 14: Low Heat Transfer Fluid (Coll.) In

    Rectify interference 2.3.7 Low heat transfer fluid (coll.) in 6 720 643 196-06.1I Description: The heat transfer fluid (coll.) temperature on the incoming heat transfer (coll.) fluid is below the set protection value (-8 °C). Resets automatically when the temperature has risen 1K. Check Action B Start the heat transfer fluid (coll.)

  • Page 15: Low Heat Transfer Fluid (Coll.) Out

    Rectify interference 2.3.8 Low heat transfer fluid (coll.) out 6 720 643 196-07.1I Description: The temperature on the outgoing heat transfer (coll.) fluid is below the set protection value (- 10 °C). Resets automatically when the temperature has risen 1K. Check Action B Compare the value on T11 in the info...

  • Page 16: T1-T3, T6-T11

    Rectify interference 2.3.9 T1-T3, T6-T11 Check Action B Check the sensor's temperature value yes: Open circuit or short-circuit in the sensor. under Temperatures. Does the display show -52.1 or 160? Does the display show -52.1? yes: Open circuit in the sensor or connection B Check the wiring to the sensor.

  • Page 17: T81 (Pool Control)

    Rectify interference 2.3.11 T81 (pool control) 6 720 643 196-09.1I Check Action B Check the sensor's temperature value yes: Open circuit or short-circuit in the sensor. under Temperatures. Does the display show -52.1 or 195? Does the display show -52.1? yes: Open circuit in the sensor or connection.

  • Page 18: Electric Element Fault

    Rectify interference 2.3.12 Electric element fault 6 720 643 196-10.1I Description: Electric element fault Reset on the overheat protection and must be acknowledged in the display. Check Action B Check the supply to the electrical yes: additional heat (measured on the AHB B Check the wiring in the heat pump.

  • Page 19: Compressor Does Not Reach Correct

    Rectify interference 2.3.15 Compressor does not reach correct frequency Description: Gives an alarm if the actual value of the compressor speed deviates by >5Hz for two minutes. See separate fault tracing tree Check the supply to the inverter circuit board in the ( Chapter 2.4) molex switch on the I/O circuit board.

  • Page 20: Check Connection To Ahb

    Rectify interference 2.3.18 Check connection to AHB Description: No contact with AHB board. 6 720 643 196-15.1I Check Action Is the green LED on the AHB board flash- yes: B Check the CANbus connections and terminations. ing? B Check the CANbus connections and terminations. Didn’t that help? B Replace the AHB board.

  • Page 21: Troubleshooting The Inverter Section

    Rectify interference Troubleshooting the inverter section The heat pump does not run, troubleshooting the inverter section Check Action Is there 3x400V to the heat pump? L1-- yes: L2, L1--L3, L2--L3=400 B Check the main fuse. B Is the contactor connected? yes: B Wait for the time relay to end (9 min).
  • Page 22 Rectify interference The heat pump does not run, troubleshooting the inverter section Check Action Is a ceramic power resistor connected to yes: The resistor should have 16 ohm, replace if neces- relay X52 on the inverter circuit board? sary. Didn’t that help? The resistance must be 16 ohm.

  • Page 23: Alarm From Driver Circuit Board

    Rectify interference Alarm from driver circuit board Alarm from driver circuit board Code Alarm text Check points NAK 0-0 Stoppage due to overheated heat sink. B Check whether the fan runs. B Check for contact paste between the heat sink and electronics.

  • Page 24: Alarm From Heat Transfer Fluid (Coll.) Pump G3

    Rectify interference Alarm from heat transfer fluid (coll.) pump G3 Error message - Interference. - The pump switches itself off, the LED that indicates error messages illuminates red permanently. - After five minutes, the pump starts automatically again. - After the same disturbance occurs six times within 24 hours, the pump switches off permanently, SSM opens and the interface PLR/LON/CAN gives the error message again.
  • Page 25 Rectify interference Warning messages - Interference (only warning) appears. - LED that indicates error messages and SSM relay not activated. - The pump continues to work. Interference can occur any number of times. - The signalled (incor- rect) operating mode may not occur for a longer period of time. The cause must be rectified. Exception: If warn- ings E04 and E05 occur for longer than 5 minutes in operating mode HW they are sent on as error messages.
  • Page 26 Notes 6 720 643 196 (2010/02)
  • Page 27 6 720 643 196 (2010/02)

This manual is also suitable for:

X11X15

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