Technical Manual for the K series Cassette controller
Contents
1. Do not operate the controller with wet hands Do not press multiple buttons simultaneously Do not press the buttons with sharp objects Ensure the Correct Button is Pressed Ensure all settings are in accordance with the Units User Manual Do not get the controller wet Display Section SE eee 88 i a E S i ad HA egi oo O1 N NAU Display Segments Clock Area Displaying the date time and day of the week 2 Mode Display Showing your choice of Automatic Cooling Dry Fan Only and Heating Modes 3 Timer Area Displaying the next Timer Occurrence and whether the unit will turn On or Off at this time If this is not displayed then the unit is not in Timer Mode 4 Error Code Display Area This displays any applicable error conditions 5 Temperature Display Area This displays the Temperature as meas ured by the unit 6 Set Temperature Display Area This displays the temperature the unit is trying to achieve 7 Fan and Louver Display Area This shows the current fan setting and whether the swing louver is operational 8 Output Device Display Area This shows which output devices are operational These include water pump reversing valve outdoor fan mo tor compressor electric heater and defrost It also displays whether the keyboard lock has been set Operation Switch amp Status LED ON OFF O Located at the top right hand corner of the controller is the Operation Swit2. Use the TEMPERATURE UP amp DOWN buttons to scroll between ON and OFF for that day of the week Press RESET to leave programming mode If you wish to operate the unit manually without time clock operation press the TIMER button until there is no display in the Timer Area To resume press the TIMER button to sl OW ti e it ner Area Bik AR TADE The Error Code Display Area is lit when there is a fault which must be rectified Depending upon the nature of the fault the unit may continue to operate or shut down On seeing an Error Code you should immediately inform your service engineer and give them the fault code An explanation of these fault codes are shown in the appendix of this manual CEER COU DS 4 The Temperature Display Area shows the temperature of the room as measured at the units Air Inlet Pressing the OPTION button allows the temperatures of the other temperature sensors to be displayed here using the TEMPERATURE UP amp DOWN buttons to scroll through them The sensor reference is shown in the Error Code Display Area Press RESET to leave this mode 903 The Set Temperature Display Area shows the temperature the unit is set to achieve when operating This temperature can be increased or decreased using the TEMPERATURE UP amp DOWN buttons In order to achieve the best results we recommend that a setting of between 22C and 24C will give the best results in terms of room comfort Constant changes in set tempera t
3. For further information telephone 01743 466333 Or visit our website at www medalaircon co uk Whilst every care has been taken to ensure that the information included in this docu ment was accurate at the time of printing we reserve the right to change specifications at any time The photographs reproduced in this publication are within the constraints of the printing process and are NOT to be used for matching purposes E amp OE Highcool Series Wired 7 Day Controller for Cassette Air Conditioner Operation Manual A A Read the Manual Risk of Electric Shock Unit is Remotely controlled amp may start without warning C RoHS A N WARNING This air conditioner is not intended for use by persons e including children with reduced physical sensory or mental HighCool capabilities or lack of experience and knowledge unless they _ have been given supervision or instruction concerning use of the appliance by a person responsible for their safety Children should be supervised to ensure they do not play with the air conditioner or remote controller Ref AUX wired controller 16 INTRODUCTION Highcool series cassette split systems are supplied as standard with the Wired 7 Day Controller This controller is a sophisticated device designed to provide easy opera tion to a Highcool series cassette split system At its simplest with the front panel shut the controller can be used to display relevant infor
4. anual to hand If you enter Engineer Setup mode by mistake press RESET to leave without changing any important system parameters 12 Mm B WN eR Control Buttons Opening the panel on the front of the controller reveals the controller buttons which allow you to control the functions of the air conditioner In brief this page describes their main functions 1 2 10 Timer Pressing this button turns the timer function on and off Press ing and holding with the unit off allows the timer to be set Clock Pressing and holding with the unit off allows the date time and day of the week to be set Time Up amp Down These can be used to set the time in Clock Set or Timer Set modes Temperature Up amp Down These can be used to increase or de crease the set temperature Swing This is used to enable or disable the swing louver Mode This is used to switch between operating modes You can use this to select Automatic Cooling Only Heating Only Dehumidification or Fan Only operation for your air conditioner Heater This function is used to control an optional electric heater element if one is fitted Your Highcool air conditioner does not include this device but uses the outdoor unit to generate heat in heating mode Fan This is used to set the fan speed and pressing it will scroll be tween low medium high and automatic fan speeds Option Pressing this allows the user to use the temperature up amp down button
5. blem Er04 Critical High Pressure Switch Trip Repair Safety Device Tripped Er05 Critical Low Pressure Switch Trip Repair Safety Device Tripped Er06 Critical High Discharge Temperature Repair Safety Device Tripped Er07 Critical Overcurrent Protection Tripped Repair Safety Device Tripped Er08 Critical Comms Fail Indoor to Outdoor Repair Broken Cable or Interference Er11 Critical Drainage Failure Repair Blocked Drains Er12 Critical Electric Heater Ov erheat Repair Safety Device Tripped Explanation of Actions e Investigate Non Critical Failure Requiring Investigation by an engineer e Repair Critical Failure Requiring Investigation by an engineer In the case of a Pr03 or Pr08 failure investigate yourself by checking the condition of the filter and cleaning if necessary Prolonged operation in cooling with a set temperature below 21C or heating above 26C can also cause these conditions In case of a Pr04 failure investigate yourself whether the outdoor unit airflow is obstructed 14 General Description Status LED e Operation IR Receiver Flap Closed Flap Open The controller has a Backlit Liquid Crystal Display Section Status LED and Operation Switch mounted on the top half The lower half is covered by a swing open flap Opening the flap reveals the control buttons These are used to operate the unit The buttons with a yellow border control the timer operation and the others control the units other functions Please Ensure
6. ch and a single Display LED The LED will glow red if the unit is off and green if it is run ning Pressing the operation switch will turn the unit on or off manually If the unit is in timer mode then the timer display section will change when this is done to show when this will regain control of the unit 4 Caring for the Environment We all have a responsibility to care for the environment and the way you use your Highcool air conditioner can help by reducing energy consumption The following recommendations will all help to keep the energy consumed by your Highcool system to a minimum Use the time clock to operate your unit only when it is needed If not using the time clock remember to switch the unit off when a room is unoccupied Choose the operation mode best suited to the season Cooling mode in summer will prevent the heating coming on while Heating mode in winter will prevent unnecessary cooling Use automatic mode only during intermediate periods when both heating and cooling are required Set the temperature to a realistic level and leave it there Be tween 22 amp 24C is our recommendation Setting abnormally high or low temperature settings will increase energy consump tion and may cause erroneous operation Making frequent changes to the set temperature will likewise increase energy consumption with little appreciable difference to comfort Make sure the air inlet and outlet of both indoor and outdoor units are clean an
7. consumption compared with cooling mode Fan Only Mode uses the indoor fan to generate air movement within the room but without cooling or heating the room It is often used to prevent a room getting stuffy Heating Mode allows heating to be used to prevent the room temperature 4 UF 5 i m C A ropping below the set temperature during winter use For your comfort we Eat recommend not setting the temperature above 24C in heating mode I What do you want the unit to do Pressing the mode button scrolls between automatic cooling dry fan only and heating modes Choose the mode most appropriate to your needs Automatic will engage whichever mode is necessary to maintain the set temperature Cooling will cool the room down to the set temperature Dry will remove moisture and cool the room down Fan Only will give air movement in the room without heating and cooling Heating will heat the room up to the set temperature Note the unit will only be able to reach the set temperature if it is powerful enough to do so Your air conditioner is not designed to cool a room down to 20C or less for long periods or heat it up to 25C or more for long periods and depending upon the heating or cooling requirements of your room may be unable to do so at all Setting the Set Temperature Use TEMPERATURE UP amp DOWN to increase or decrease the set tem perature to the required level We recommend between 22C amp 24C for an o
8. d free from anything that might block the air flow Check amp Clean the indoor unit air filters regularly as shown in the Operation and Maintenance Manual If there is another form of heating in the room ensure it is not operating if the air conditioner is in cooling dry or automatic modes If another form of heating is available in the room but your Highcool system is able to heat the room sufficiently on its own then turn the other heating system off Your Highcool system is more efficient that almost all other forms of heating Only use additional heating if the capacity of your unit is not sufficient on its own If you lose this manual or require a spare copies are available to download at highcool co uk Reading these on your computer rather than printing them will save ink and paper Ensure you Highcool air conditioner is serviced regularly by a qualified and trained engineer We recommend taking out a service contract with the company that installed it for you in the first place 13 Advanced Settings Remote Start amp Stop YES NO It is possible to provide the unit with a remote over ride switch to turn the unit on or off remotely using a central time clock or switch Check with your installer whether this has been done and for future refer ence make a note above if this is the case It is still possible to operate the unit using the time clock on the unit while this function is operating but the remote switch will alway
9. en each day has a start and stop time and has been set to on or off press RESET SON Typical settings are 8 00am start and 5 00pm stop with Monday to Friday set to ON and Saturday and Sunday set to OFF Enabling or Disabling the Time Clock If a start or stop time is shown in the Timer Display section the time clock is active If it is not then it is inactive Press TIMER to enable or disable the time clock Operating the System Manually 1 Ensure the time clock is disabled by pressing TIMER if there is a start or stop time displayed in the Timer Display LCD section 2 Press OPERATION ON OFF in the top right hand corner of the controller to switch the unit on or off oF If the unit is on then the display LED will glow green If it is off then it will glow red Om wi GO E aN i The Timer Area is only lit during timer operation and shows the time when the timer will next turn the unit on or off If the unit is in timer operation and the OPERATION button is pressed then the timer area will advance to the next applicable setting as the OPERATION button over rides the current setting Setting the timer can only be carried out when the unit is off Press and hold the TIMER button You can then set a start and stop time for every day of the week using the TIME UP amp DOWN buttons to increase or decrease the time and the TIMER button to scroll between the settings For every day of the week you can select the unit to either run or not
10. ist with setting up the Weekly Timer you may use the table below in order to record the settings for each day Monday fo Tuesday fo Wednesday Z o l o T Thursday fo Friday fo Saturday fo Sunday Fault Code Log In order to assist with the identification of any faults please fill in the date time Fault Code and Action Taken for each time a fault code is displayed DATE TIME CODE ACTION 15 Appendix 1 Fault Codes The Error Check display area of the LCD display may in the event of a fault show the symbol of a spanner and a fault code This is a list of fault codes in order for you to advise your service and maintenance engineer of the likely problem Not all faults will generate a fault code Faults are divided into two types as below Recoverable Errors P Codes These faults will not always stop the unit but will affect its performance They will clear if the problem resolves itself Critical Errors E Codes These will cause the unit to shut down and should be investigated by an engineer as soon as possible Code Type oo Action Likely Cause Pr06 Recoverable Indoor Unit Air Sensor Fault Repair Faulty Sensor Pr08 Recoverable Indoor Unit Ov erheating Inv estigate Dirty Filter or Set Temp High Pr11 Recoverable Drain Pump Struggling to Cope Investigate Partially Blocked Drains Eo00 Critical Comms Fail Indoor to Control Repair Broken Cable or Interference Eo03 Critical Electrical Phase Problem Repair Power Supply Pro
11. mation about the units operation and allow the user to switch the unit on and off Opening the controller front panel allows all of the controllers functions to be accessed Pressing any of the buttons below the front panel once gives User Level Access Pressing and holding certain buttons will give Service Level Access At its most sophisticated the controller can switch the unit on or off at different times each day of the week or not run the unit at all on some days It can tell you what the unit is doing and whether it has a fault even what that fault is This manual is designed to show how the 7 Day Wired Controller can be used to operate your Highcool cassette split system in order to get the most from it CONTENTS P2 Introduction P3 General Description P4 Display Section P5 Control Buttons P6 9 Understanding the Display P10 12 Operating the Controller P13 Caring for the Environment P14 Appendix 1 Fault Codes P15 Appendix 2 Engineers Notes P15 Appendix 3 Timer Chart P15 Fault Code Log Appendix 2 Notes for Engineer The controller is provided with special screws for fixing it to the wall Please use these to avoid damaging the controller The controller uses Low Voltage control cable avoid running this close to High Voltage cables in order to avoid interference The controller uses the RS485 data protocol The cable colours are Earth Black A Green B Yellow 12V Red Appendix 3 In order to ass
12. ptimum comfort level Setting the Auto Swing Louver Press SWING while the unit is operating to start or stop this function Setting the Indoor Fan Speed Press FAN while the unit is running to increase or decrease the indoor fan speed or choose automatic fan speed to let the unit choose the most appropriate Setting the Keyboard Lock Press and hold RESET for six seconds to turn the keyboard lock on and off 11 10 Getting Started Setting the Time Date amp Day of the Week Press and hold CLOCK until a beep is heard One of the segments of the Time Display will flash Use TIME UP amp DOWN to set that segment Use CLOCK to scroll to the next segment Use RESET to finish when the time date and day of the week have been set ee Setting the Time Clock Each day has a start time stop time and whether the time clock is active for that day of the week The time clock is only activated if a start or stop time is shown in the Timer Display segment of the LCD Display This must be done with the unit off 1 Press and hold TIMER until a beep is heard 2 The Timer Display will be shown as well as a day of the week and a large ON or OFF One of the segments will flash 3 Use TEMPERATURE UP amp DOWN to set whether the unit will run that day or not 4 Use TIME UP amp DOWN to change the flashing segment to the desired setting Use TIMER to scroll to the next segment When the day of the week changes go back to step 3 Wh
13. s take priority over any local setting Temporary Start Stop If the unit is operating in time clock mode then pressing the OPERA TION button will temporarily advance the operation The unit will stop if it is running or start if it is off The Timer Display will change to the next on or off period and at this time will resume time clock opera tion Temporary Timer Pressing TIMER when not in time clock mode will allow a temporary on or off time to be set This is set in a similar manner to setting the time clock and once the time is set pressing RESET will allow the unit to function under this temporary setting Alternatively pressing TIMER will cancel the temporary timer setting and pressing it again will re sume time clock operation Service Engineers Pressing OPTION will allow you to interrogate the various temperature sensors in the indoor and outdoor unit by scrolling through them using the TEMPERATURE UP amp DOWN buttons The sensor reference is shown in the Error Display Segment PCO1 is the indoor unit air temperature sensor PCO2 is the indoor pipe temperature sensor PC04 is not used and always shows 0 PCO5 is the outdoor coil temperature sensor and PCO7 the compressor discharge sensor Pressing and holding OPTION will allow you to enter Engineer Setup mode Details are available in the Service Manual Parameters in the Engineer Setup mode should only be changed by suitably qualified personnel with a copy of the Service M
14. s to interrogate the various temperature sensors in the indoor and outdoor units Reset This can be used when you are in any programming mode to return to standard operational mode Pressing and holding this button allows the keyboard lock to be set Understanding the Display cuaa a ad MBD Boe TME Wel THU FR 24T The Clock Area shows the Date Time and Day of the week Pressing and holding the CLOCK button with the unit off allows these parameters to be scrolled through and changed using the TIME UP amp DOWN buttons to increase and de crease the setting and the CLOCK button to scroll to the next function After setting the date time and day of the week press RESET to leave the programming mode Al 288 69 GH 0 The Mode Area shows which mode the unit is currently set to work in This is set using the MODE button on the controller Automatic mode allows the unit to automatically select heating or cooling in A order to maintain the desired room temperature For your comfort we rec ommend setting the temperature to between 22 amp 24C in automatic mode Cooling Mode allows cooling to be used to prevent the room temperature exceeding the set temperature during summertime use For your comfort we recommend not setting the desired temperature below 22C in cooling mode Dry or Dehumidification Mode uses the units cooling function to reduce the humidity in the room It is designed to make the room comfortable with reduced energy
15. ss to the controller
16. ure will not give better comfort but will increase energy consumption Operating the unit with an abnormally low set temperature in cooling or abnormally high set temperature in heating for extended periods may also cause erroneous operation The Fan amp Louver Display Area shows the fan speed and also whether the automatic swing louver is operational To start or stop the swing louver mechanism press the SWING button All four louvers operate simultaneously and can not be controlled individually This function can only be set when the unit is running To change the fan speed press the FAN button when the unit is running This will scroll between high medium low and automatic fan speeds i E gp 22 23 85 23382 5 so Saga ey aE a Pe er Sanne oe aan by 8 nt Swing Louver Low Fan Speed Medium Fan Speed High Fan Speed Automatic Fan Speed is shown by the display continually changing from low to me dium to high fan speed In order to prevent malfunction it is strongly recommended not to use the low or medium fan speed settings when using the unit in cooling or automatic modes with a set temperature below 21C or in heating or automatic modes above 25C Under cer tain conditions the units internal controls may over ride the fan speed selected by the user D a a The Output Device Display Area is designed to show which of your sys tems internal components are operating at that moment in time except for the Indoor Fan and S
17. wing Louver which are shown separately in the Fan amp Louver Display Area It can also display if the keyboard lock is set The Internal Drain Pump is used to remove condensate water produced during cooling automatic and dry modes from the indoor unit The Reversing Valve is used to reverse the flow of refrigerant in order to allow the unit to heat instead of cool This is lit in heating mode collect heat from outside in heating mode The compressor is used to pump refrigerant around the system to allow the unit to heat or cool It is located in the outdoor unit The Outdoor Fan is used to reject heat from the room in cooling or dry modes or The electric heat symbol is used to show when an optional electric heater device is energised Your Highcool unit does not have this heater and if it is displayed you can cancel it using the HEATER button It has no effect on your unit The Defrost Symbol shows when the unit is in heating but has stopped to melt NEF any ice formed on the outdoor heat exchanger This will happen from time to time to allow the system to operate efficiently When it is lit none of the keys on the controller can be used This allows the operator to set the units operating mode and start stop times then prevent others from interfering with the operation of the system It is enabled or disabled by pressing and holding the RESET button for six seconds A The Keyboard Lock is used to prevent unauthorised acce
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