AUX Highcool Series Installationshandbuch

For further information telephone 01743 466333

Or visit our website at www.medalaircon.co.uk

Whilst ever 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 an 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&OE.

Read the Manual Risk of Electric Shock Unit is Remotely controlled

& may start without warning

WARNING

This air conditioner is not intended for use by persons

(including children) with reduced physical, sensory or mental

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. hildren

should be supervised to ensure they do not play with the air

conditioner or remote controller.

Ref— AUX wired controller

Highcool Series

Wired 7 Day ontroller

for assette Air onditioner

Operation Manual

INTRODU TION

Highcool series cassette split systems are supplied as standard with the

Wired 7 Day ontroller.

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 information 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 ontroller can be

used to operate your Highcool cassette split system in order to get the

most from it.

ONTENTS

P2 Introduction

P3 General Description

P4 Display Section

P5 ontrol Buttons

P6—9 Understanding the Display

P10-12 Operating the ontroller

P13 aring for the Environment

P14 Appendix 1—Fault odes

P15 Appendix 2—Engineers Notes

P15 Appendix 3—Timer hart

P15 Fault ode 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 assist with setting up the Weekly Timer you may use the

table below in order to record the settings for each day.

Day On Time AM/PM Off Time AM/PM ON/OFF

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sunday

Fault Code Log

In order to assist with the identification of any faults, please fill in the date, time, Fault

ode and Action Taken for each time a fault code is displayed.

DATE TIME ODE A TION

Appendix 1

Fault Codes

The Error heck display area of the L D 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.

Recovera le 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 Ty pe Meaning Action Likely Cause

r01 Recoverable Indoor Unit ipe Sensor Fault Repair Faulty Sensor

r02 Recoverable Outdoor Unit ipe Sensor Fault Repair Faulty Sensor

r03 Recoverable Indoor Unit Freezing Inv estigate Dirty Filter or Set Temp Low

r04 Recoverable Ov erload Condition in Cooling Inv estigate Outdoor Unit Obstructed

r05 Recoverable Outdoor Discharge Sensor Fault Repair Faulty Sensor

r06 Recoverable Indoor Unit Air Sensor Fault Repair Faulty Sensor

r08 Recoverable Indoor Unit Ov erheating Inv estigate Dirty Filter or Set Temp High

r11 Recoverable Drain ump Struggling to Cope Inv estigate artially Blocked Drains

Eo00 Critical Comms Fail Indoor to Control Repair Broken Cable or Interference

Eo03 Critical Electrical hase roblem Repair ow er Supply roblem

Er04 Critical High ressure Sw itch Trip Repair Safety Dev ice Tripped

Er05 Critical Low ressure Sw itch Trip Repair Safety Device Tripped

Er06 Critical High Discharge Temperature Repair Safety Device Tripped

Er07 Critical Ov ercurrent rotection Tripped Repair Safety Dev ice 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

•

Investigate—Non ritical Failure Requiring Investigation by an engineer

•

Repair— ritical 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

21 or heating above 26 can also cause these conditions.

In case of a Pr04 failure investigate yourself whether the outdoor unit airflow is obstructed.

Flap Closed Flap Open

Status LED

Operation

Re eiver

General Description

The controller has a Backlit Liquid rystal 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 -

• Do not operate the controller with wet hands

• Do not press multiple buttons simultaneously

• Do not press the buttons with sharp objects

• Ensure the orrect Button is Pressed

• Ensure all settings are in accordance with the Units User Manual

• Do not get the controller wet

Display Segments

1. Clock Area—Displaying the date, time and day of the week

2. Mode Display—Showing your choice of Automatic, ooling, 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.

Display Section

Operation Switch & Status LED

Located at the top right hand corner of the controller is the Operation Switch 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.

ON/OFF

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.

• hoose the operation mode best suited to the season. ooling

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 & 24 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 and free from anything that might block the air-

flow.

• heck & lean 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.

Advanced Settings

Remote Start & 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. heck

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 always 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 &

DOWN buttons. The sensor reference is shown in the Error Display Segment. P 01 is

the indoor unit air temperature sensor, P 02 is the indoor pipe temperature sensor,

P 04 is not used and always shows 0, P 05 is the outdoor coil temperature sensor and

P 07 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 Manual to hand. If

you enter Engineer Setup mode by mistake press RESET to leave without changing any

important system parameters.

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. 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.

2. Clock—Pressing and holding with the unit off allows the date, time and

day of the week to be set.

3. Time Up & Down—These can be used to set the time in lock Set or

Timer Set modes.

4. Temperature Up & Down—These can be used to increase or de-

crease the set temperature.

5. Swing—This is used to enable or disable the swing louver

6. Mode—This is used to switch between operating modes. You can use

this to select Automatic, ooling Only, Heating Only, Dehumidification

or Fan Only operation for your air conditioner.

7. 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.

8. Fan—This is used to set the fan speed and pressing it will scroll be-

tween low, medium, high and automatic fan speeds.

9. Option—Pressing this allows the user to use the temperature up &

down buttons to interrogate the various temperature sensors in the

indoor and outdoor units.

10. 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

The lock Area shows the Date, Time and Day of the week

Pressing and holding the LO K button with the unit off allows these parameters to be

scrolled through and changed using the TIME UP & DOWN buttons to increase and de-

crease the setting and the LO K button to scroll to the next function. After setting the

date, time and day of the week press RESET to leave the programming mode.

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

order to maintain the desired room temperature. For your comfort we rec-

ommend setting the temperature to between 22 & 24 in automatic mode.

ooling 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 22 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 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

dropping below the set temperature during winter use. For your comfort we

recommend not setting the temperature above 24 in heating mode.

What do you want the unit to do?

Pressing the mode button scrolls between automatic, cooling, dry, fan

only and heating modes. hoose the mode most appropriate to your

needs.

• Automatic will engage whichever mode is necessary to maintain

the set temperature

• ooling 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 20 or less for long

periods or heat it up to 25 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 & DOWN to increase or decrease the set tem-

perature to the required level. We recommend between 22 & 24 for

an optimum 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 Key oard Lock

Press and hold RESET for six seconds to turn the keyboard lock on

and off.

Getting Started

Setting the Time, Date & Day of the Week

1. Press and hold LO K until a beep is heard

2. One of the segments of the Time Display will flash

3. Use TIME UP & DOWN to set that segment

4. Use LO K to scroll to the next segment

5. Use RESET to finish when the time, date and day of the week

have been set.

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 L D

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 & DOWN to set whether the unit will

run that day or not.

4. Use TIME UP & DOWN to change the flashing segment to the

desired setting.

5. Use TIMER to scroll to the next segment

6. When the day of the week changes go back to step 3

7. When each day has a start and stop time and has been set to

on or off press RESET

Typical settings are 8.00am start and 5.00pm stop with Monday to Friday set to ON and

Saturday and Sunday set to OFF.

Ena ling or Disa ling 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 L D section.

2. Press OPERATION (ON/OFF in the top right hand corner of the

controller) to switch the unit on or off.

3. If the unit is on then the display LED will glow green. If it is off

then it will glow red.

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 & 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. Use the TEMPERATURE UP & 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

show the Timer Area.

The Error ode 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 ode 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.

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 & DOWN buttons to scroll through them.

The sensor reference is shown in the Error ode Display Area. Press RESET to leave this

mode.

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 & DOWN buttons.

In order to achieve the best results we recommend that a setting of between 22 and

24 will give the best results in terms of room comfort. onstant changes in set tempera-

ture 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 & 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.

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 21 or in heating or automatic modes above 25 . Under cer-

tain conditions the units internal controls may over ride the fan speed selected by the

user.

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 Swing Louver which are shown separately in the

Fan & 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.

The Outdoor Fan is used to reject heat from the room in cooling or dry modes or

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 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

any ice formed on the outdoor heat exchanger. This will happen from time to

time to allow the system to operate efficiently.

The Keyboard Lock is used to prevent unauthorised access to the controller.

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.

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