Altherma User Guide

System User Guide

EKHBH model - heat ing and hot water

2Welcome to your new environment.

This user guide will help you set up and control your Altherma space heating and sanitary hot water system to suit your exact requirements.

The Daikin Altherma is an air-to-water heat pump system designed to provide energy efficient heating and hot water from a renewable energy source (outside air).

Daikin, established in 1924, is the worlds leading manufacturer of heat pump and air conditioning technology. Renowned for its innovative, energy efficient and advanced technology product development, Daikin has a strong commitment to energy conservation, environmental consciousness and safety. www.daikin.eu.

Daikin markets its product range through an extensive worldwide network of distributors. Space Airconditioning plc, established in 1980, is Europes largest independent Daikin distributor. www.spaceair.co.uk.

Welcome

CHILLERS.

3Contents

page

Quick Start for Altherma 4

Getting to know your Altherma Controller 5

Description of Operation Modes 6

Setting the Clock and Day 7

Programming the Schedule Timers (Space Heating) 8 - 9

Copying programmed actions (Space Heating) 9

Example of programming Space Heating 10 - 12

Programming the Schedule Timers (Sanitary Hot Water and Booster Heater) 13

Example of programming Sanitary Hot Water / Booster Heater 14 - 15

Programming the Schedule Timers (Silent Mode) 16

Checking programmed schedules 17

Deleting programmed schedules 18

Schedule of your programmed actions 19

Tips and Helpful Information 20

Warranty, Maintenance and Contact Details 21

Name and Function of Buttons and Icons 22 - 23

4Sanitary Hot Water operation

1. Turn ON the sanitary hot water operation by pressing the sanitary water heating button .The sanitary hot water icon will be displayed.2. Set the required temperature using the sanitary temperature adjust buttons . 3. Turn OFF the sanitary hot water operation by pressing the sanitary water heating button .The sanitary hot water icon will not be displayed.

Space Heating operation

1. Turn ON the space heating operation by pressing the ON / OFF button .The red LED is illuminated.2. Set the required temperature using the temperature adjust buttons .3. Turn OFF the space heating operation by pressing the ON / OFF button .The red LED is not illuminated.

Quick Start for A l therma

2

1 3

2

1 3

5Gett ing to know your Al therma Contro l ler

The ON / OFF button only switches ON the heating function. The red LED is illuminated when the space heating operation is ON.

Set the heating temperature with the temperature adjust buttons.

Set the hot water temperature with the sanitary temperature adjust buttons.

Indicates day of the week. Also shows the selected day when programming the schedule timer. (see programming)

Indicates the current time. Also shows the action time when programming the schedule timer. (see programming)

icon description

space heating active

sanitary hot water active

compressor active

circulating pump active

backup heater active

booster heater active(if sanitary tank is connected)

temperature icon

Press the schedule timer button to activate or deactivate the schedule timer.

The default temperature displayed is the space heating set point. Press the sanitary temperature adjust button down ( ) to display the hot water set point.

Press the sanitary water heating button to switch ON the sanitary hot water. The hot water is only ON when the operation icon is shown on the display.

6Descr ipt ion of the Operat ion Modes

Space Heating operation In space heating operation, heating will be activated as required by the temperature set point. This operation can be turned ON manually by pressing the ON / OFF button or automatically with the schedule timers (see page 8).

Sanitary Hot Water operationIn sanitary hot water operation, the indoor unit will provide hot water via the sanitary tank (if connected). The temperature set point can be adjusted at any time using the sanitary temperature adjust buttons . This operation can be turned ON manually by pressing the sanitary water heating button or automatically with the schedule timers (see page 13). If required the booster heater (located in the sanitary tank) will raise the water temperature to the sanitary hot water temperature set point.

Booster Heater operation*Booster heater mode provides extra heating for the sanitary tank via the booster heater (fitted in the sanitary tank).

Powerful Sanitary Hot Water operation*If hot water is required urgently use the powerful sanitary hot water operation. To activate press the sanitary water heating button for 5 seconds. The operation mode icon and the booster heater icon will flash. Powerful sanitary hot water operation is deactivated automatically when the set sanitary hot water temperature is reached.Note: Powerful sanitary hot water operation overrides the schedule timer.

Silent Mode operation The outdoor unit will work at reduced capacity to reduce noise. The indoor heating capacity will also drop.

Hot Start operation / Defrost operation During hot start operation the pump will remain off until a certain refrigerant heat exchanger temperature is reached, guaranteeing correct start up of the heat pump.Due to low outdoor temperatures freezing of the outdoor heat exchanger may occur. Defrost operation clears this automatically and the system returns to space heating or hot water operation.

Schedule TimersThe schedule timer allows you to programme the space heating and sanitary hot water. You can add, browse or delete programmes whenever you want with the schedule timer.1. Space heating - You can programme 5 different actions each day of the week.2. Sanitary hot water - You can programme 5 different actions per day which are automatically actioned every day of the week. 3. Silent mode - You can programme 5 different actions per day which are automatically actioned every day of the week. 4. Booster heater* - You can programme 5 different actions per day which are automatically actioned every day of the week.

*This operation uses the booster heater therefore is not as energy efficient as utilising the outdoor unit.

Note: For further description of functions and icons see pages 22-23.

7Sett ing the Clock and Day

4 2

1 3

To set the Clock and Day

1. Hold down the schedule timer button for 5 seconds.

The clock read-out and the day of week indicators start flashing.

2. Use the time adjust button to adjust the clock.

Each time the timer up and down buttons are pressed, the time will increase / decrease by 1 minute. Keeping the timer up and down buttons pressed will increase / decrease the time by 10

minutes. The clock is always displayed in 24 HR format.

3. Use the temperature adjust buttons to select the day of the week.

4. Press the programming button once to confirm the current set time and day of the week.

The clock read-out and the day of week indicators stop flashing.

8Programming the Schedule T imers (Space Heat ing)

Space Heating Timers

You have to set a separate timer for the space heating operation and the sanitary hot water operation (see page 13).

You can programme up to 5 actions for each day of the week.

1. Press the programming button . The selected MODE ( ) is flashing - MON is selected.

2. Press the programming button to confirm the selected mode. The MODE and actual DAY will be flashing.

3. Select the day to programme using the timer adjust buttons . The selected MODE and DAY is flashing.

4. Press the programming button to confirm the selected day.DAY, MODE and TIME is flashing. TEMPERATURE SET POINT is displayed.

5. Press the programming button for 5 seconds to enter programming mode.DAY, MODE, TIME, SCHEDULE and TEMPERATURE SET POINT is flashing. Schedule 1 is indicated .

6. Use the programming button to select the schedule you wish to programme 1 to 5 .

Note: Always start with schedule 1 which will normally be an ON time.

7. Use the weather dependent set point button to select one of 3 actions:

Note: Press the weather dependent set point button once to change to between these actions. i. ON - will be displayed by the temperature set point . Set the required heating temperature with the temperature adjust buttons or ii. OFF - will be displayed by the OFF icon. (NO temperature will be displayed). or iii. Set auto temperature function - will be displayed by the weather dependent set point icon . (NO temperature will be displayed). (See helpful information for more details.)

8. Use the timer adjust buttons to select the required action time .

Repeat steps 6 to 8 for other schedules for the selected day.

1 2 4

5 6 9

3 7

7

10

8

Note: This function is disabled if room thermostat or external input is utilised.

99. Press the programming button for 5 seconds to confirm the schedules are saved.

The schedule timer returns to step 4. Select the next day to programme or use copy function (see below).

10. When you have set all the required schedules for the week press schedule timer button several times to return to normal operation screen.Note: If you wish to quit the schedule timer at any point, without saving any schedules, press the schedule timer button several times.

Press schedule timer button to activate or deactivate the schedules.

Note: The schedules are ONLY activated when the schedule timer icon is shown in the display. If the

schedules are not activated there will be NO schedule timer icon.

Copying programmed actions to the next day

1. Press the programming button . The actual mode is flashing.

2. Select the required mode with the timer adjust buttons . The selected mode is flashing.

3. Press the programming button to confirm the selected mode. The actual day is flashing.

4. Use the timer adjust up button and the timer adjust down button to select the day you want to copy from. The selected day is flashing.

5. Press the programming button and schedule timer buttons together for 5 seconds. The setting icon will be displayed for one second to comfirm action.

The display will show the next day indicating that the programme has been copied from the previous day.

6. Repeat step 5 to copy to other days.

Press the schedule timer button several times to return to previous step or normal operation screen.

Programming the Schedule T imers (Space Heat ing)

10

Programming the Schedule T imers (Space Heat ing example)

Example: Space Heating Timers To programme 5 actions for MONDAY

Action 1 - Turn ON space heating at 6:00 @ 50oCAction 2 - Turn OFF space heating at 10:00Action 3 - Turn ON space heating at 16:00 @ 45oCAction 4 - Turn OFF space heating at 21:00Action 5 - Turn OFF space heating at 23:59(Action 5 is set to ensure if you manually turn ON the space heating

after 21:00 it will turn OFF when you go to bed.)

Action 1 - Turn ON space heating at 6:00 @ 50oC

1. Press the programming button . The HEATING icon ( ) is flashing - MON is selected.

2. Press the programming button to confirm heating mode. The HEATING icon and MON will be flashing.

3. Select MON to programme using the timer adjust buttons . The selected MODE and MON is flashing.

4. Press the programming button to confirm the selected MON.MON, HEATING icon and TIME is flashing. TEMPERATURE SET POINT is displayed.

5. Press the programming button for 5 seconds to enter programming mode.MON, HEATING icon, TIME, SCHEDULE and TEMPERATURE SET POINT is flashing. Schedule 1 is indicated .

6. Use the programming button to select the schedule 1.

7. Use the weather dependent set point button to select ON. i. ON - will be displayed by the temperature set point. Set the heating temperature to with the temperature adjust buttons .

8. Use the timer adjust buttons to select the action time .

1 2 4

5 6

3 7

7

8

11


1

2

3

Action 2 - Turn OFF space heating at 10:00

1. Use the programming button to select the schedule 2 .

2. Use the weather dependent set point button to select OFF. ii. OFF - will be displayed by the OFF icon. 3. Use the timer adjust buttons to select the action time .

1

2

3 2

Action 3 - Turn ON space heating at 16:00 @ 45oC


2. Use the weather dependent set point button to select ON. i. ON - will be displayed by the temperature set point. Set the heating temperature to with the temperature adjust buttons . 3. Use the timer adjust buttons to select the action time .

12




2. Use the weather dependent set point button to select OFF. ii. OFF - will be displayed by the OFF icon. 3. Use the timer adjust buttons to select the action time .

Press the programming button for 5 seconds to confirm the schedules 1 to 5 are saved.

The schedule timer returns to step 4 (see page 8). Select the next day to programme or use copy function (see page 9).

When you have set all the required schedules for the week press schedule timer button several times to return to normal operation screen.

Note: To programme 1, 2, 3 or 4 actions, simply press the programming button for 5 seconds after the selecting the correct time for the final action.



2. Use the weather dependent set point button to select OFF. ii. OFF - will be displayed by the OFF icon 3. Use the timer adjust buttons to select the action time .

1

2

3

1

2

3

13

Sanitary Hot Water orBooster Heater Timers(For a description of modes please see page 6)

You can programme up to 5 actions per day for each mode. There is NO individual day to select or set. One schedule will automatically be programmed for ALL seven days of the week.

Select the sanitary hot water temperature set point during normal operation using sanitary temperature adjust buttons. This is not done during programming mode.

To programme sanitary hot water or booster heater.

1. Press the programming button . The actual MODE is flashing.

2. Use the timer adjust buttons to select the required mode or . The selected MODE is flashing.

3. Press the programming button to confirm the selected mode. Selected MODE icon and TIME is flashing.

4. Press the programming button for 5 seconds to enter programming mode. MODE icon, TIME and schedule 1 is flashing.

5. Use the programming button to select the schedule you wish to programme.

6. Use the timer adjust buttons to select the required action time.

7. Use the weather dependent set point button to select or deselect OFF if required for the schedule.

Repeat steps 5 to 7 for other schedules.

8. Press the programming button for 5 seconds to confirm the schedules set.

Programme returns to step 2.

9. Press the schedule timer button several times to return to normal operation.


Note: The schedules are ONLY activated when the schedule timer icon is shown in the display.

Programming the Schedule T imers (Sani tary Hot Water )

1 3 4

5 8

2 6

7

9

This function is only available if sanitary tank is connected.

14

Programming the Schedule T imers (Hot Water example)

Example: Sanitary Hot Water Timers

To programme 2 actions

Action 1 - Turn ON sanitary hot water at 17:00Action 2 - Turn OFF sanitary hot water at 20:00

Note: Select the sanitary hot water temperature set point during normal operation using sanitary temperature adjust buttons. This is not done during programming mode. Action 1 - Turn ON sanitary hot water at 17:00


2. Use the timer adjust buttons to select sanitary hot water mode. SANITARY HOT WATER icon is flashing.

3. Press the programming button to confirm the selected mode. SANITARY HOT WATER icon and TIME is flashing.

4. Press the programming button for 5 seconds to enter programming mode. SILENT MODE, TIME and schedule 1 is flashing.

5. Use the programming button to select schedule 1 .


7. Use the weather dependent set point button to select ON. (ON is selected if OFF is NOT displayed).

1 3

4 5

2 6

7

15

Programming the Schedule T imers (Hot Water example)

Programming the Schedule T imers (Hot Water example / Booster Heater )

Action 2 - Turn OFF sanitary hot water at 20:00

1. Use the programming button to select schedule 2.


3. Use the weather dependent set point button to select .


5. Press the schedule timer button several times to return to normal operation screen.

Note: These programmed schedules are ONLY activated when the schedule timer icon is shown in the display.

1 4

5 2

3

Booster Heater Timers

Booster heater mode can ONLY be programmed to turn OFF the booster heater (fitted in the sanitary tank).

The booster heater provides extra heating for the sanitary tank and will automatically come ON if the outdoor unit cannot provide the required capacity (for further details see the installation and operation manuals).

If you are using the sanitary hot water operation for example, during more expensive electricity hours (if on economy 7 or 10 tariffs) and would NOT like the booster heater to come ON, use this programme to switch it OFF.

To programme the booster heater to come OFF during your programmed sanitary hot water operations, follow the same steps for programming sanitary hot water as described on page 13.

Note: You can programme up to 5 OFF actions per day for the booster heater. There is NO individual day to select or set. One schedule will automatically be programmed for ALL seven days of the week.

16

Programming the Schedule T imers (S i lent Mode)

Silent Mode Timers

The outdoor unit runs extremely quietly during normal space heating and sanitary hot water operation. Across the outdoor unit range the average sound level is 51 dB(A). This can be reduced further by 6 dB(A) in silent mode.

During silent mode (average 45 dBA) the outdoor unit will work at reduced capacity to reduce noise.

Programme the silent mode to come ON during your programmed space heating / sanitary hot water operations. To programme silent mode.


2. Use the timer adjust buttons to select the silent mode . SILENT MODE is flashing.

3. Press the programming button to confirm the selected mode. SILENT MODE icon and TIME is flashing.

4. Press the programming button for 5 seconds to enter programming mode. SILENT MODE icon, TIME and schedule 1 is flashing.

5. Use the programming button to select the schedule you wish to programme.

6. Use the timer adjust buttons to select the required action time.

7. Use the weather dependent set point button to select or deselect OFF if required for the schedule.

Repeat steps 5 to 7 for other schedules.


Programme returns to step 2.

9. Press the schedule timer button several times to return to normal operation.


Note: The schedules are ONLY activated when the schedule timer icon is shown in the display.

1 3 4

5 8

2 6

7

9

Explanation of sound levelsdB(A) Perceived loudness Sound

0 Treshold of hearing -20 Extremely soft Rustling leaves, quiet room40 Very soft Refrigerator humming60 Moderately loud Normal conversation, restaurant80 Very loud City traffic, lorry100 Extremely loud Symphonic orchestra, farm tractor120 Treshold of feeling Jet taking off

17

Programming the Schedule T imers (S i lent Mode)

Browse Mode

1. Press the programming button . MON is selected and mode is flashing.

2. Press the timer adjust buttons to select the mode to check (browse).

3. Press the programming button to confirm selected mode. MON and the selected mode are flashing.

4. Press the programming button .Schedule 1 and settings are indicated.

5. Press the timer adjust buttons to indicate and check other programmed schedules.

6. Press the schedule timer button to return to the selected day.

7. Press the timer adjust buttons to select the next day to check.

8. Press the programming button to select schedule 1 for the next day.

9. Repeat from step 5 to check all programmed schedules.

Press the schedule timer button several times to return to previous step or normal operation

screen.

Checking Programmed Schedules (Browse Mode)

18

To delete a programmed day for Space Heating

1. Press the programming button . The selected mode ( ) is flashing. MON is selected.

2. Confirm the selected mode with the programming button .The actual DAY will be flashing.

3. Select the day to programme using the timer adjust buttons .The selected DAY is flashing.

4. Press the programming button and the weather dependent set point button simultaneously for 5 seconds to delete the selected day.

The setting icon will appear and disappear to confirm deletion.

To delete a programme for Sanitary Hot Water, Booster Heater or Silent Mode

1. Press the programming button . The actual mode is flashing.

2. Use the timer adjust buttons to select the mode you wish to delete.The selected mode is flashing.

3. Press the programming button and the weather dependent set point button simultaneously for 5 seconds to delete the selected mode.

The setting icon will appear and disappear to confirm deletion.

De let ing Programmed Schedules

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Schedule of your programmed act ions

space heatingaction time set temp oC ON OFF

MONDAY

1 :

2 :

3 :

4 :

5 :

TUESDAY

1 :

2 :

3 :

4 :

5 :

WEDNESDAY

1 :

2 :

3 :

4 :

5 :

THURSDAY

1 :

2 :

3 :

4 :

5 :

FRIDAY

1 :

2 :

3 :

4 :

5 :

SATURDAY

1 :

2 :

3 :

4 :

5 :

SUNDAY

1 :

2 :

3 :

4 :

5 :

sanitary hot wateraction time set temp oC ON OFF

1 :

2 :

3 :

4 :

5 :

silent modeaction time set temp oC ON OFF

1 :

2 :

3 :

4 :

5 :

booster heateraction time set temp oC ON OFF

1 :

2 :

3 :

4 :

5 :

20

T ips and Helpfu l In format ion

The clock is always displayed in the 24 HR format. The clock will not change to GMT or BST during the year. Please adjust the clock when appropriate in the spring and autumn.

The schedules are ONLY activated when the schedule timer icon is shown in the display. If the schedules are not activated there will be NO schedule timer icon. Turning OFF the schedule timer will effect ALL programmed operations (i.e. space heating, sanitary hot water, booster heater and silent mode).

If 2 or more actions are programmed for the same day and the same time, only the action with the HIGHEST action number will be executed.

If you do not require the Altherma to be operating for a period of time e.g. a long holiday, simply press the schedule timer button to turn OFF the schedule timer (NO schedule timer icon displayed).

If you are operating the Altherma manually press the ON / OFF button to switch OFF the space heating.Press the sanitary water heating button to switch OFF the sanitary hot water. (Operation mode icons and are only displayed when ON).

The powerful sanitary hot water and booster heater operations use the booster heater therefore are not as energy efficient as utilising the outdoor unit.

In the set auto temperature function for space heating, the Altherma will adjust the temperature set point according the outside temperature. The minimum and maximum temperature values are set in the field settings. This mode will provide extra energy savings please see the installation and operational manuals for more information.

Press the weather dependent set point button for 5 seconds (until the set temperature display is flashing) to check the current; 3 Space heating water temperature 3Outside temperature 3Sanitary hot water temperature (useful if your are waiting to have a shower)Use the temperature adjust buttons to scroll between the different temperatures. Press the weather dependent set point button to return to normal operation.

Heating water according to the latest Part L1A and B regulations suggest: 345 - 55oC for radiators 335 - 40oC for underfloor heating 360oC for sanitary hot water (recommended by WRAS to be 50oC)** Please note: Storing water at 60oC is to prevent microbial growth (legionella). This is not necessary with the Altherma as it has built in controls to perform the prevention of microbial growth (legionella) by weekly boosting the water temperature up to 70oC to sanitise the system. This allows you to safely store water at lower temperatures for maximum efficiency.

If your electricity supplier provides economy 7 or 10 tariffs (cheaper electricity for 7 or 10 hours per day), programme the Altherma and other home devices (washing machine / dishwasher etc.) to operate during these times to maximise energy cost savings.

DO NOT SwiTcH Off THE mAiN pOwEr SUpply TO THE AlTHErmA. A pOwEr SUpply iS rEqUirED TO mAiNTAiN THE prOGrAmmED OpErATiONS AND TO AcTiON THE wEEKly lEGiONEllA prOTEcTiON.

21

Warranty, maintenanceand contact deta i ls

The equipment:

i) Outdoor unit

ii) Indoor hydro-box

iii) Daikin hot water cylinder

is covered by a 2 year warranty from date of possession or 3 years from date of commissioning (see

commissioning certificate in this pack). The warranty is conditional to the followings:

1. The installation of the Altherma is carried out as per the manufacturers

recommendations.

2. The entire installaton is carried out in accordance with WRAS regulatons and is

installed by a Part G approved plumber.

3. The electrical installation (power distribution) is carried out to Part P regulations.

4. The interconnecting refrigeration pipe work is installed by certified refrigeration

engineers with Refrigeration Handling certification or CITB approved.

5. The equipment is maintained annually by an approved maintenance company,

certified by Daikin / Space Air.

(Failure to maintain the Altherma correctly will invalidate the warranty).

For more information on maintenance and trouble shooting please see the the Maintenance and Fault

Code Guide.

for warranty clarification, claims or general queries please contact Space Air on 01483 252 265 - monday to friday 9am - 5pm.

IMPORTANT

When contacting Space Air you will be asked for your specific Altherma serial number. Please have the

information below to hand before making contact.

YOUR ALTHERMA SERIAL NUMBER:

22

1. HEATING ON / OFF BUTTON The ON / OFF button starts or stops the heating function of the unit. When the unit is connected with an external room thermostat, this button is not operable and the icon is shown.Pressing the ON / OFF button consecutively too many times may cause malfunction of the system (max. 20 times per hour).

Note: Pushing the button has no inuence on the sanitary hot water. Sanitary hot water is only switched ON or OFF by means of the

button or via the schedule timer.

2. OPERATION LEDThe operation LED is illuminated during space heating operation. The LED blinks if a malfunction occurs. When the LED is OFF space heating is inactive while the other operation modes can still be active.

3. OPERATION MODE ICONSThese icons indicate the current operation mode(s): space heating , sanitary hot water ( ) or silent mode ( ). Within limits, different modes can be combined, e.g. space heating and sanitary hot water. The corresponding mode icons will be displayed simultaneously. If the sanitary water tank is not installed, the icon will never be displayed.

4. EXTERNAL CONTROL ICONThis icon indicates that an external room thermostat with higher priority is controlling your installation. This external room thermostat can start and stop the space heating operation. When an external room thermostat is connected, the schedule timer for space heating will not function.

5. DAY OF THE WEEK INDICATORThis indicator shows the current weekday. When reading or programming the schedule timer, the indicator shows the set day.

6. CLOCK DISPLAYThe clock display shows the current time. When reading or programming the schedule timer, the clock display shows the action time.

7. SCHEDULE TIMER ICONThis icon indicates that the schedule timer is enabled.

8. ACTION ICONSThese icons indicate the programming actions for each day of the schedule timer.

9. OFF ICON This icon indicates that the OFF action is selected when programming the schedule timer.

10. INSPECTION REQUIRED These icons indicate that inspection is required on the installation. Consult maintenance.

11. SET TEMPERATURE DISPLAYThe display shows the current set heating temperature of the installation.Press the sanitary temperature adjust button (no. 33) down to display the current set hot water temperature.

12. SETTINGNot used. For installation purposes only.

13. NOT AVAILABLE This icon is displayed whenever a non-installed option is addressed or a function is not available.

14. DEFROST / STARTUP MODE ICONThis icon indicates that the defrost / startup mode is active.

15. COMPRESSOR ICONThis icon indicates that the compressor in the outdoor unit of the installation is active.

16. BACKUP HEATER These icons indicate that the backup heater is operating. The backup heater provides extra heating capacity in case of low ambient outdoor temperature (high heating load).

17. BOOSTER HEATER ICONThis icon indicates that the booster heater is active. The booster heater is located in the sanitary water tank and provides auxiliary heating. The icon will not be displayed if the sanitary tank is not installed.

11735 6 248

13

25

26

111921144

79

121022

34

27

28

23 20

333231

29

30

2161815

Name and Funct ions of Buttons and Icons

23

11735 6 248

13

25

26

111921144

79

121022

34

27

28

23 20

333231

29

30

2161815

18. PUMP ICONThis icon indicates that the circulation pump is active.

19. OUTDOOR TEMPERATURE DISPLAYWhen this icon is ashing, the outdoor ambient temperature is displayed.

20. WEATHER DEPENDENT SET POINT ICONThis icon indicates that the controller will adapt the temperature set point automatically, based on the outdoor ambient temperature.

21. TEMPERATURE ICONThis icon is displayed when the water outlet temperature of the indoor unit, the outdoor ambient temperature and the sanitary water tank temperature are shown. The icon is also displayed when the temperature set point is set in schedule timer programming mode.

22. TEST OPERATION ICONThis icon indicates that the unit runs in test mode.

23. FIELD SET CODEThis code represents the code from the field set list.

24. ERROR CODE This code refers to the error code list and is for service purposes only.

25. SPACE HEATING/COOLING BUTTONThis button allows manual switching between cooling or heating mode (provided the unit is not a heating only unit). When the unit is connected with an external room thermostat, this button is not operable and the icon is shown.

26. SANITARY WATER HEATING BUTTONThis button enables or disables heating of the sanitary water. This button is not used when the sanitary water tank is not installed.

27. WEATHER DEPENDENT SET POINT BUTTONThis button enables or disables the weather dependent set point function which is available in space heating operation only. If the controller is set in permission level 2 or 3 (refer to the installation manual), the weather dependent set point button will not be operable.

28. INSPECTION/TEST OPERATION BUTTONThis button is used for installation purposes only.

29. PROGRAMMING BUTTONThis multi-purpose button is used to program the controller. The function of the button depends on the actual status of the controller or on previous actions carried out by the operator.

30. SCHEDULE TIMER BUTTONThe main function of this multi-purpose button is to enable/disable the schedule timer. The button is also used to program the controller. The function of the button depends on the actual status of the controller or on previous actions carried out by the operator. If the controller is set in permission level 3, the schedule timer button will not be operable.

31. TIME ADJUST BUTTON and These multi-purpose buttons are used to adjust the clock, to toggle between temperatures (water outlet temperature of the indoor unit, outdoor ambient temperature and sanitary water temperature) and in schedule timer programming mode.

32. TEMPERATURE ADJUST BUTTONS andThese multi-purpose buttons are used to adjust the current set point in normal operation mode or in schedule timer programming mode. In weather dependent set point mode the buttons are used to adjust the shift value. Finally, the buttons are also used to select the weekday while configuring the clock.

33. SANITARY TEMPERATURE ADJUST BUTTONS and These buttons are used to adjust the current set point of the sanitary water temperature. The buttons are not used when the sanitary water tank is not installed.

34. SILENT MODE BUTTONThis button enables or disables silent mode. If the controller is set in permission level 2 or 3, the silent mode button will not be operable.

Name and Funct ions of Buttons and Icons

System User Guide

Altherma System User Guide // Issue One // 2007Space Airconditioning plc has compiled this User Guide to the best of its knowledge. Space Airconditioning plc explicitly rejects any liability for any direct or indirect damage arising from or related to the use and/or interpretation of this User Guide. This document is produced by and the property of Space Airconditioning plc. All copyrights are reserved.

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Altherma User Guide