Optima 300

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Optima 300 Design

Active ventilation / Heat recovery

Display 1,5 / Version 3.1

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Genvex A/S  Sverigesvej 6  DK-6100  Haderslev  Tlf.: +45 7353 2700  www.genvex.dk

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Table of contents

1. Control panel ............................................................................ 3

2. Installation................................................................................. 3

3. Start-up ...................................................................................... 3

4. Operating................................................................................... 4

4.1 Operating and changing date in the operating menu ............... 4

4.2 Main menu ................................................................................ 5

4.3 Date and time ........................................................................... 5

4.4 Calendar ................................................................................... 6

4.5 User menu ................................................................................ 6

4.6 Display menu ............................................................................ 7

4.7 Info operation............................................................................ 9

4.8 Service menu.......................................................................... 10

4.9 Schedule for week program.................................................... 14

4.10 Schedule for defrosting ....................................................... 14

4.11 Schedule for set points ........................................................ 15

5. Function .................................................................................. 16

5.1 Controlling Optima 300 ........................................................... 16

5.2 Extra capacity ......................................................................... 16

5.3 Operating reliability ................................................................. 16

6. Maintenance ............................................................................ 17

6.1 Unit ........................................................................................ 17

6.2 Alarms (error messages) ........................................................ 17

6.3 Dismantling/taking the system out of service ......................... 17

7. Troubleshooting ..................................................................... 18

7.1 High pressure switch .............................................................. 18

7.2 The system is not running ..................................................... 18

7.3 Error on air side ...................................................................... 18

Subject to technical modifications of Optima 300

1. Control panel

The control panel must be mounted on an interior wall that is centrally located in the home.

Since the control panel at the same time functions as a room thermostat, it is important to observe the following:

• Do not expose the control panel to direct sunlight.

• Do not place the control panel on an outer wall.

• Do not recess the control panel in the wall

• Do not place the control panel over a heat source.

A lamp close to the control panel can affect the light sensor so that the control panel will not regulate the light intensity as intended.

On the front of the control panel in the ring there are 7 keys that are used to operate the panel. The function of the keys changes depending on the menu selected. (More information is available under Operation).

There is an infrared movement sensor located under the glass screen. Simply by moving your hand past the control panel you can bring up the menu for daily operating options. (This function can be turned off: See under Main menu/Display/Menu item 5).

The following are located at the bottom of the control panel:

1: SD card

2: Room sensor

3: Light sensor

4: Mini USB port for connection to computer

1: The removable SD card contains all the control models and versions that make the control panel compatible with older versions. The SD card also contains all the languages, menus, help texts, symbols and collected data logs.

During the start-up procedure, the current versions are installed in the control panel so that the control can function without the SD card. However, the help texts will not appear in the display and the data logs will not be saved.

4: In order for a computer to read the data logs, the Genvex data logger program must be installed.

2. Installation

Please see the installation guide.

3. Start-up

The first time the system is started, the control panel display will show: “Choose language”.

Click “Next” to switch between Danish, English, German and French. Press “Enter” when the desired language is shown in the display. The control panel will now load the current program version in the selected language.

The display will show:

• Updating model (loading the current model)

• Wait 1.5 minutes (It takes approximately 1.5 minutes to load the current version)

• Language load (91)

• Language OK

• Menu load (84)

• Menu OK

• Icon load (369)

• Menu OK

• Reset to default

• Restarting……..

• Optima 300 UK

Then the display will then change to:

• The Genvex logo

• Optima 300 UK

• Version number

D (Control panel): X.X

C (Main board): X.X

Finally, the display changes to daily operation and the system is now in operation with the factory setting which is only a basic setting.

The system is now ready to be adjusted with the most optimal air flows and the operational desires and demands for the home in question, e.g. weekly operation, temperatures etc. to achieve the most effective utilisation and operation of the system.


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4. Operating

Optima 300

All Genvex heat pumps of type GE Premium for dwellings are delivered with the Optima 300 control, which has a factory setting so that the system can be put into operation without further setting.

The factory setting is a basic setting that should be adapted to the operating desires and demands for the dwelling in question to achieve the most effective utilisation and operation of the system.

4.1 Operating and changing date in the operating menu

Normally the symbols for daily operating options are displayed and the following keys can be seen.

K1

K2

Daily operation is divided in 7 menu items

K7

K6

K3 - After heating

Use the key next to the symbol “Cooling” to change between + and ÷. If the symbol is set to “+”, the cooling will commence as required. If the symbol is set to “÷”, the cooling will not commence, even if required.

K4 - Main menu

Use this function to enter the main menu and access the sub-items Date and time, Calendar, User menu, Display,

Info operation menu and Service menu.

K5 - Filter

Use this function to reset the filter alarm. The key next to the “Filter” symbol resets the alarm for filter change. To reset the filter alarm, change the filters and hold down the key with the “Filter” symbol until the exclamation mark in the symbol disappears.

K6 - Information

Use this function to get an overview of the current operating condition, e.g. temperatures, fan settings, relay status/ function ON/OFF, alarms, timers etc.

Use the key next to the symbol “Info” to read the operating condition of the unit (more information can be found in the main menu section under the item Info operation).

K7 - Temperature

Use this function to set the room temperature. Press the key next to the “Temperature” symbol to enter the desired temperature between 10 and 30 °C. The current temperature will be displayed at the centre of the screen.

Press the key K4 to enter the main menu and sub-menus and the following keys change function:

K3 K4 K5

K1 - Speed

Use this function to set the fan speed to levels 0-1-2-3-4.

Use the key next to the “Speed” symbol to change between the 4 speeds. The system can also be stopped by holding down the key for 3-4 seconds.

K2 - Forced operation (Party mode)

Use this function/key to set the timer to party mode from

0 to 9 hours. If the number of hours is set to 0, speeds 3 and 4 will run until the speed is changed manually. If the the number of hours is set between 1 and 9 hours, speeds

3 and 4 will automatically reconnect to speed 2 after the number of hours configured, on condition that item 28 of the Service menu is set to ON.

K3 changes to “Arrow down ” and when changing the setting to “÷”.

K4 changes to “Enter”. Press “Enter” to proceed through the menus and sub-menus.

K5 changes to “Arrow up” and when changing the setting to “+”.

K6 changes to “Exit”. Press “Exit” to return to the previous screen.

K7 changes to “Help”. Press “Help” to see a short guide to the current menu item.

The horizontal arrow in the menu shows the current location. To save changes to a menu item, finish by pressing “Enter”.


4.2 Main menu

There is a “Book” symbol at the bottom centre of the screen with the daily operating options. Press this key to enter the main menu.

This menu is divided into 6 menu items

4.3 Date and time

Use this function to set the date and time.

This menu is divided into 6 sub-menu items

Date and time (item 4.3)

Calendar (item 4.4)

User menu

Display

(item 4.5)

(item 4.6)

Info operation (item 4.7)

Service menu (item 4.8)

“Arrow down” or “Arrow up” will change the symbol to a horizontal arrow that shows the current location.

01 Hours

Enter the current hour here.

When changing between summer and winter time you have to manually set the time one hour forward or back.

02 Minutes

Enter the current minute here.

03 Weekday

Enter the current weekday here.

04 Date

Enter the current date here.

05 Month

Enter the current month here.

06 Year

Enter the current year here.

Press “Enter” to access the sub-items of the current menu.

Press “Arrow down” or “Arrow up” again to select the required sub-menu item. When the horizontal arrow is next to a sub-menu item, the 2 lines will change place, the font sizes will change and the text “Set” will be added. Pressing ”Enter” next to the selected sub-menu item will change the background of the item to grey. Use the ”+” and ”-” keys to change the current value. Press “Enter” again to save the change.

If no changes are required, press “Exit” to go back out of the menus. Press “Help” to see a short guide to the menu item. Press one of the keys to exit the help program.

After a short period of non-activity, the control will automatically exit the programs.

Weekday

Monday

Tuesday

Wednesday 3

Thursday 4

1

2

Friday

Saturday

Sunday

5

6

7

Month

January

February

March

April

May

June

July

August

September

October

November

December

7

8

5

6

3

4

1

2

9

10

11

12


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4.4 Calendar

Use this function to configure the setting of each day of the week. Each day can be configured to run with different fan speeds as required. You can copy the configuration from one day to another. You can choose ON or OFF here, i.e. if for a period of time there is nobody home, the daily settings can be turned off and the system will run according to a manual setting, e.g. level 1.

This menu is divided in 9 sub-menu items

03 - to 08

These days can be filled in individually in the same way as under item 02.

09 - Copy day

Use this menu item to copy one day to another, where the same switching times, speeds and temperature lowering are required.

For example: From Thursday to Tuesday.

4.5 User menu

This menu is divided into 5 sub-menu items

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01 - Calendar

Choose between controlling the system manually or controlling the speed (air exchange) and temperature automatically according to a fixed day program. If the menu item is set to OFF, the system will be controlled manually according to the speed and temperature selected. If the menu item is set to ON, the system will be controlled according to the day programs entered in the menu items 02 to 08.

Setting option: ON/OFF.

Factory setting: OFF.

02 - Monday

Up to 10 switching times can be entered for one day. The times can be entered in random order. Enter the hours in the first column, the minutes in the second and the speed in the third column. Use the fourth column to enter the temperature difference by which the temperature should be lowered.

Example: If the temperature is set to 21 °C and you

enter – 2.0 °C, the system will aim at 19 °C.

If the speed has been changed manually on the key under daily operation, the program will return to the day program when the next switching time is passed.

Examples of a day program:

01 07:30 H3 -0,0

02 09:15 H1 -1,0

03 17:00 H3 -0,0

04 18:00 H2 -0,0

05 23:30 H2 -2,0

It is not necessary to use all switching times. If the line is marked by 0, it will be skipped by the control.

01 - Temperature

Set the desired temperature between 10°C and 30°C. In item 19 of the Service menu you can choose between temperature control of sensor in the control panel or of sensor in the extract air of the home.

Setting option: between 10 and 30 °C.

Factory setting: 21 °C.

02 - Cooling

To prevent the cooling of the supply air starting as soon as no heat is required, configure how many degrees the room temperature must be above the configured room temperature in item 1 before the cooling may start. (Cooling costs money).



03 - Cooling ON/OFF

For systems of type Premium equipped with automated cooling, the set point must be configured to ON and the system will cool when the sensor registers a higher temperature than the temperature configured in item 2. If the system is not equipped with automated cooling, configure the set point to OFF.




04 - Timer levels 3 and 4

At speeds 3 and 4, the system will automatically reconnect to speed 2 after the number of hours set in item 17 of the

Service menu by configuring the set point to ON. If the set point is set to OFF, the system will run at speed 3 or 4 until it is manually changed to another speed. The timer can also be operated directly on the key next to the symbol for “Forced operation” on the screen for daily operating options.



05 - Change filter

A filter timer is built-in counting how long the system has been running since the last change of filter. The set point can be set between 1-6, which corresponds to 1-6 months.

It is recommended that the set point should initially be set to 3, corresponding to 3 months.

If the filters are too dirty after the period configured, set the set point to a lower number. If it is not necessary to change the filters after the configured period, the set point can be set to a larger number.

When the timer reaches the configured value for the change of filter, the alarm “Change filter” will flash at the top of the screen saver.

When the filters have been changed, return to the screen with daily operating options and hold down the key for the

“Filter” symbol until the exclamation mark disappears and the system returns to normal operation.

Setting option: between 1 and 6 months.

Factory setting: 3 months.

4.6 Display menu

The menu item with the “Display” symbol. Use this function to configure the following sub-menu items.


01 - Language

Choose between Danish, English, German or French text in the display.

02 - Program info

This menu shows which Optima is fitted on the system and its version number:

Example: Optima 300 UK D: 1.0 C: 3.0

D represents the version number of the control panel.

C represents the version number of the main board.

03 - Screen saver

The following settings can be selected here:

0: Screen saver off (daily operating options are displayed)

1: Screen saver off, but with light dimming

2: Room temperature + light dimming

3: Clock + light dimming

4: Clock and Room temperature + light dimming

5: Black screen + light dimming

Setting option: between 0 and 5.

Factory setting: 3.

04 - Pause time

Use this to set the period from no operation of the symbols on the screen for daily operation until the screen automatically returns to the screen saver.

From daily menu to screen saver variable from 1 to 10 minutes. The other automatic return connections cannot be adjusted. If no key has been pressed within the time intervals indicated below, it will automatically return to the previous screen:

-Change in menu item back to menu item = 30 seconds.

-From menu item to main menu = 2 minutes

-From menu item to daily menu = 2 minutes

Setting option: between 1 and 10 minutes.

Factory setting: 10 minutes.

05 - Auto wake-up

It is possible to deactivate the “Auto wake-up” function, where you can change from the screen saver to the screen with the symbols for the daily operating options by moving your hand past the control panel.

If the function is set to OFF, press any key to display the daily operating options.



”0” OFF

”1” Max sensitive

”2” Level 2

”3” Level 3

”4” Least sensitive

06 - Auto lightness

In the display there is a movement sensor.


Factory setting: ON.


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12 - Safety menu

It is possible to prevent access to selected main menu items so that they can only be changed with a password, which is a 4-digit figure. The first time, press 4 times 0 and then “Enter”. Items 13 to 18 will open. Select the password in item 18, which in future will also be the password to access the menu items 13 to 18.

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07 - Lightness day

Use this to enter the maximum brightness level for the control panel when the room is fully lit.

Setting option: between 0 and 100 %.

Factory setting: 100 %.

08 - Lightness night

Use this to enter the minimum brightness level for the control panel when the room is in complete darkness.



09 - Lightness day screen saver

Use this to enter the maximum brightness level for the screen saver when the room is fully lit.



10 - Lightness night screen saver

Use this to enter the minimum brightness level for the screensaver when the room is in complete darkness.



11 - Reset to factory settings

If the set points are configured so that the system does not function as expected and the cause cannot be established, there are 2 different options to reset the menu items to the factory settings.

- Press 1 to change all menu items to the factory settings except for the menu items for Speed (Level), Filter timer,

Calendar and Defrost temperatures.

- Press 2 to change all menu items to the factory settings.

Note: Before performing a reset, ensure that the currently entered values are noted in the “Table for set values” page 15.


Factory setting: 0 mode.

13 - Date and time

If this item is set to ON, it will not be possible to enter the menu for Date and time without using the selected password in item 18.



14 - Calendar

If this item is set to ON, it will not be possible to enter the menu for Calendar without using the selected password in item 18.



15 - User menu

If this item is set to ON, it will not be possible to enter the

User menu without using the selected password in item 18.



16 - Display

If this item is set to ON, it will not be possible to enter the menu for Display without using the selected password in item 18.



17 - Service menu

If this item is set to ON, it will not be possible to enter the Service menu without using the selected password in item 18.




18 - Password

Enter the selected password here and use this also in item

12 to enter items 13 to 18. If you forget your password, contact Genvex Service department for assistance. To change the password, enter a new password in this item and press “Enter”. The password has now been changed.

4.7 Info operation

The Info operation menu provides an overview of the current operating status of the system. If you want to see the operating status of the system over a period of operation, connect the control panel to a computer and use the

Optima data logger program. The system monitors the operating status every minute and stores the data for up to one year on the SD card.

This menu is divided in 5 pages

Current temperature

Press “Enter” next to the Info operation menu. The first screen displayed shows the current temperatures.

Supply air

Extract air

Bypass damper

Water valve in % in% in % in %

Current setting of operation relays

Press “Arrow down” again to display the current status of the operation relays. For extra electrical heat level R5, R6 and R7, an extra relay circuit board is fitted with R10, R11 and R12. When R5 is ON, R10 is ON. When R6 is ON,

R11 is ON. When R7 is ON, R12 is ON.

R1 Compressor

R2 After heating

R3 Preheating

R4 Defrosting

R5 Heat level 2(R10)



R8 Cooling

R9 Help function

T1 Supply air

T2 Room

T3 Fresh air

T4 Exhaust air

T5 Before evaporator

T6 Evaporator

T7 Extract air

T8 Frost protection

T9 Extra sensor

Current fan speed

Press “Arrow down” to display the current percentage fan speeds and the opening of the bypass damper and of the water valve.


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Current list of alarms

Press “Arrow down” again to display the current alarms.

An alarm it is activated if ON appears beside it. At ON there is an alarm, which can also be seen on the screen saver and the display for daily operating options. At the top it says alarm. The Info operation menu shows the type of alarm. When the timer for changing filter reaches the set value, the alarm “Change filter” will flash at the top of the screen saver. The alarm will read OFF when the error has been corrected or the filter is changed and reset.

Alarm

Control stopped

Change filter

Frost protection

Com error

Pressure switch

Status Error at „ON“

ON/OFF Filter not changed after 14 days/ Frost protection error/The system is equipped with an external switch between terminals 28 and 29. “Alarm” will be displayed when these are short-circuited and the system has stopped.

ON/OFF The filters should be changed.

ON/OFF The temperature of the water after heater is too low (frost danger).

ON/OFF The control panel cannot communicate with the main board between display and printed circuit board).

ON/OFF The high pressure switch is disconnected due to excessive pressure in the refrigerant circuit.

Hour counters (2 pages)

Press “Arrow down” again to display the hour counters, which count from the day the system is put into operation.

The figures shown should be multiplied by 10. This shows how many hours the system has been running, how many hours the system has run at the various speeds and how many hours the relays have been connected (ON).

Total time

Level 0

Level 1

Level 2

Level 3

Level 4

Relay 1 Compressor

Relay 2 After heating

Relay 3 Preheating

Relay 4 Defrosting

Relay 5 Heat level 2 (R10)



Relay 8 Cooling

Relay 9 Help relais

Press Exit to return to the main menu.

4.8 Service menu

Use this function to configure the following sub-menu items.


10 - Level 1 Supply air

Level 1, which is the lowest speed, is usually used when there is nobody home. Both fans can be configured independently of each other for all levels so that the air flow in the supply air and in the extract air is equal, which provides optimal operation.

The adjustment of the system must be performed with specialised air measurement equipment and can be performed without the use of the main regulating damper.

It is not recommended to configure the air flows without expert advice. Incorrect configuration can lead to major energy consumption or unpleasant indoor climate.



11 - Level 2 Supply air

Level 2 is the recommended speed of the system in order to provide the optimal indoor climate and it should be adjusted to the ventilation requirement of the home.



12 - Levels 3 and 4 Supply air

Level 3 is the highest speed that can be configured. It is used e.g. if there are many guests or there is a lot of activity in the kitchen.

Setting option of level 3: between 0 and 100 %.

Factory setting of level 3: 75 %.

Level 4 is used mainly in summer to lower the indoor temperature. Remember that a higher air exchange rate increases the energy consumption.

Setting option of level 4: cannot be configured.


13 - Level 1 Extract air

The fan speed is adjusted until the same air flow is achieved as the supply air on level 1.




14 - Level 2 Extract air

The fan speed is adjusted until the same air flow is achieved as the supply air on level 2.



15 - Levels 3 and 4 Extract air

The air flow of level 3 is adjusted to the same air flow as the supply air on levels 3 and 4 (item 12).

Setting option of level 3: between 0 and 100 %.

Factory setting of level 3: 75 %.

Setting option of level 4: cannot be configured.


panel is not installed centrally in the home.

For room regulation, set the set point to 0.

For extract air regulation, set the set point to 2.

Setting option: 0/2.


20 - Preheating ON

If a preheater is installed in the fresh air channel, the set point must be configured to ON. Configure the desired preheating temperature in item 21 in the Service menu.



21 - Preheating

If preheating is set to ON in item 20 of the Service menu , the set point must be configured to the fresh air temperature, at which the preheater should connect.

Setting option: between -15 and 0 °C.

Factory setting: -10 °C.

16 - (T2) Fine tuning

It is possible to fine tune the room sensor of the control panel so the correct current room temperature is displayed.



17 - Timer levels 3 and 4

If automatic reconnection is used for speeds 3 or 4, you can enter how many hours the system should run on level

3 or 4 before it automatically returns to level 2.

The set point can be configured between 1 and 9 hours.

Setting option: between 1 and 9 hours.

Factory setting: 3 hours.

18 - Filter/stop

To ensure that the filters are changed when the alarm

“Change Filter” flashes on the screen of the control panel, the set point can be configured to ON. The system will then stop automatically after 14 days if the filters have not been changed.

If this precaution is not required, the set point can be configured to OFF and the system will continue to operate.



19 - Method of regulation

There are 2 options:

1. Room regulation (T2 sensor)

2. Extract air regulation (T7 sensor)

Room regulation is the normal option.

Extract air regulation normally applies when the control

22 - Regulation water

If a water after heater with a motor-operated valve is installed in the system it may be necessary to adjust the regulation time. The less regulation time, the faster the motor-operated valve will regulate.

Setting option: between 1 and 250 seconds.

Factory setting: 20 seconds.

23 - Regulation electricity

If an electrical preheater or an electrical after heater is installed, it may be necessary to adjust the regulation time.

Setting option: between 1 and 30 minutes.

Factory setting: 3 minutes.

24 - Minimum air flow

In order to achieve optimal performance of the system, the air flows should correspond to at least the air flows listed in the data sheet for the unit in question. If the supply air flow and the extract air flow are set lower than the minimum requirement, the heat pump will stop and only preheated air from the heat exchanger will be blown into all the living rooms.




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25 - Frost protection

If a water after heater with motor-operated valve is installed in the system, a frost protection sensor must be fitted to the water after heater and the set point configured to ON. If no frost protection sensor is installed, the set point must be configured to OFF.



26 - Frost protection temperature

If frost protection in item 25 is set to ON, the frost protection temperature must be configured to the temperature where the system should stop and the motor-operated valve open completely for the flow of hot water.



27 - Help function

This function can be used for the following:

Setpoint. Function

0 The relay is off

1

2

3

4

5

6

The relay is on when the system is running. This can e.g. be used to open and close the fresh air damper and the exhaust air damper

The relay is on when extra heat is required or when the circulating pump should run when heating with water after heating is required

The relay is on when the alarm “Change filter” is active. This can be used to activate an external alarm

The relay is on when extra cooling is required. This function is used if a preheater is also fitted to the system

The control can handle an earth heat exchanger by a damper.

The relay will be on for one of the following two conditions:

•

•

The outdoor temperature, sensor T9, is lower than the value configured in item 26 (frost protection temperature, typically set at

5 °C).

The outdoor temperature, sensor T9, is more than 1° above the temperature configured in item 1 and 1 ° above the current room temperature

The relay is on when the temperature in the bedroom is 1 ° higher as the temperature set in item 40.



28 - System stop

Here you choose if it should be possible to stop the system by pressing the key for speed (K1) in the operating menu for 3-4 seconds. If the set point is OFF, the system cannot be turned off.



29 - Stop defrosting

As default the defrosting period ends when the evaporator has reached a temperature of 5 °C. It may be necessary to change this temperature to a higher value under special operating conditions where the evaporator is not completely defrosted.



Please note: It is not recommended to configure the item without expert advice.

30 - Compressor start/stop

The default temperature difference between start/stop compressor is ± 0.4°. It is recommended to change the temperature difference under special operating conditions.

Setting option: between 0.1 and 1.0 °.

Factory setting: 0.4°.

Please note: It is not recommended to configure the item without expert advice.

31 - Constant ON

If the other heating system of the home is not connected to the heat pump system, the other heating system, e.g. furnace, can stop the heat pump so that the heat pump system with heat exchanger only blows preheated air into all rooms. This will cause increasing problems with draught as the temperature falls outside. Systems without heat exchangers will blow fresh air directly in. Configuring the set point to ON will disconnect the room sensor. The heat pump will always operate and blow in warm air when the fresh air temperature is below the temperature configured in item 32. If the set point is configured to OFF, the room sensor will regulate the heat pump regardless of the fresh air temperature.




32 - Constant

If constant ON is selected in item 31, the desired fresh air temperature can be set.



33 - Reduction

For very low fresh air temperatures, lowering the supply air flow is recommended in order to improve the operating conditions of the heat pump and to also achieve a higher supply air temperature, even though the same air flow will be extracted. If the set point is configured to ON, the supply air flow will be lowered when the fresh air temperature falls below the temperature configured.

If the set point is configured to OFF, there will be no reduction of the supply air flow. This configuration applies when a preheater is installed in the fresh air side. If a furnace is installed in the home, this setting should be used with care.



37 - After heating

If an after heater is fitted to the system, you can decide when you want the after heater to operate.

If the set point is configured to OFF, the after heater will not work, even if required. If the set point is set to ON, the after heater will engage as required. It configures itself according to the temperature set in item 1 minus 1 °.



38 - Extra electrical preheating ON

If an electrical preheater with several levels over the extra relay circuit board is fitted to the system, the set point must be configured to ON. If there is no extra relay circuit board, the set point must be configured to OFF.



39 - Extra electrical preheating

If the extra electrical preheating is set to ON in item 38, the set point must be configured to the desired fresh air temperature at which the electrical preheater should heat the fresh air before the unit.



34 - Reduced supply air flow

When the set point is configured to ON in item 33, it is recommended that the fresh air temperature is set to -10 °C.

The set point can be configured between -15 and 0°C.



35 - Supply air flow

When the set point is configured to ON in item 33, it is recommended to configure the reduced supply air flow to

20 % under the value configured in item 11.



36 - Restriction of cooling

In order to prevent the system from beginning to cool in winter, regardless of the room temperature, the fresh air temperature can be configured to the temperature desired before the cooling function engages. It is recommended that the temperature is configured to at least 15 °C.



40 - Bedroom

If a lower temperature is desired in the bedroom or in any other room than the value configured in item 1 in the User menu, there is an option to fit extra dampers between the supply air duct and the duct connection for the bedroom and control the temperature in the room in question by a room sensor (T9) by configuring the set point to 6 in item 27.




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1)

2)

3)

4)

5)

6)

7)

8)

9)

10)

4.9 Schedule for week program

Hours

Monday

Minutes Speed Red. T2

1)

2)

3)

4)

5)

6)

7)

8)

9)

10)

Hours

Tuesday


6)

7)

8)

9)

10)

1)

2)

3)

4)

5)

Hours

Thursday


4)

5)

6)

7)

8)

1)

2)

3)

9)

10)

Hours

Sunday


Red. T2 = Reduced room temperature

(Night set-back)

6)

7)

8)

9)

10)

1)

2)

3)

4)

5)

Hours

Friday


1)

2)

3)

4)

5)

6)

7)

8)

9)

10)

Hours

Wednesday


6)

7)

8)

9)

10)

1)

2)

3)

4)

5)

Hours

Saturday


4.10 Schedule for defrosting

Before evaporator °C

15

14

13

12

11

10

9

8

7

2

1

0

-1

6

5

4

3

-2

-3

-4

Evaporator °C

-4

-4

-5

-6

-2

-2

-2

-3

-6

-7

-7

-2

-2

-2

-2

-2

-2

-2

-2

-2


4.11 Schedule for set points

Item Headline

(4.5) 1 Temperature

2 Cooling

3 Cooling ON/OFF

4 Timer levels 3 and 4

5 Change filter

(4.8) 10 Level 1 Supply air

11 Level 2 Supply air

12 Level 3 and 4 Supply air

13 Level 1 Extract air

14 Level 2 Extract air

15 Level 3 and 4 Extract air

16 (T2) Fine tuning

17 Timer level 3 and 4

18 Filter/stop

19 Method of regulation

20 Preheating ON/OFF

21 Preheating

22 Regulation water

23 Regulation electricity

24 Minimum air flow

25 Frost protection

26 Frost protection temperature

27 Help functions

28 System stop

29 Stop defrosting

30 Compressor start/stop

31 Constant ON

32 Constant

33 Reduction

34 Reduced supply air

35 Supply air flow

36 Restriction of cooling

37 After heating

38 Extra electrical preheating ON

39 Extra electrical preheating

40 Bedroom

OFF

0

OFF

÷ 10 °C

20 sec.

3 min.

30

OFF

5 °C

0

Factory setting

21 °C

5 °C

OFF

OFF

3 months

30 %

50 %

75 / 100 %

30 %

50 %

75 / 100 %

÷ 3 °C

3 hours

OFF

5 °C

0,4°

OFF

5 °C

OFF

÷ 10 °C

50 %

15 °C

OFF

OFF

÷ 10 °C

20 °C

Configuration area

10 - 30 °C

3 - 10 °C

ON / OFF

ON / OFF

1 - 6 months

0 - 100 %

0 - 100 %

0 - 100 %

0 - 100 %

0 - 100 %

0 - 100 %

÷ 5 - 0 °C

1 - 9 hours

ON / OFF

0 - 2

ON / OFF

÷ 15 - 0 °C

1 - 250 sec.

1 - 30 min.

0 - 100

ON / OFF

0 - 10 °C

0 - 5

ON / OFF

0 - 15 °C

0,1 - 1,0°

ON / OFF

0 - 10 °C

ON / OFF

÷ 15 - 0 °C

0 - 100 %

0 - 20 °C

ON / OFF

ON / OFF

÷ 15 - 0 °C

10 - 25 °C

Date Date Date Date


15

16

5. Function

5.1 Controlling Optima 300

Regulation of room temperature

The room temperature is controlled by the room sensor

T2, which is fitted in the control panel.

If a temperature of e.g. 21 °C has been configured, the compressor will start when the room temperature falls to

20.6 °C. The compressor will stop when it has heated up the room temperature to 21.4 °C.

If the compressor cannot maintain the room temperature, the motor-operated valve (systems with water after heaters) will begin to regulate (PI regulation) when the room temperature has fallen to 20 °C.

For systems with an electrical after heater divided into up to 4 levels, the first level will engage when the room temperature has fallen to 20 °C.

If the regulation time is set to e.g. 3 minutes, the room sensor will measure after 3 minutes whether the room temperature is now above or below 20 °C.

Level 2 will engage if the temperature is still below 20 °C.

When the room temperature at some point reaches , the electrical heat levels will begin to disconnect at 3 - minute intervals.

When the cooling (from +3 to +10 °C) starts, the supply and extract air fans engage at speed 3 and the refrigerant valve MA 7 opens so that the condenser on the supply side functions as an evaporator and the evaporator on the extract side as a condenser.

When the room temperature has fallen 1 °C, the compressor stops and the fans return to normal operation. The refrigerant valve MA 7 does not close until the bypass function is closed.

If an extra refrigerant device is fitted to the system, this will engage when the room temperature is 2 °C higher than start cooling. Systems with an electrical preheater will regulate in the same way as an electrical after heater.

Defrosting

The system begins defrosting when the difference between the temperature before the evaporator and the temperature of the evaporator becomes too big, which occurs when ice forms on the evaporator.

The solenoid valve MA 4 opens, the supply air fan and the electrical heaters stop until the ice has melted and the evaporator has reached a temperature of about 5 °C.

Then the solenoid valve closes again and the supply air fan and the electrical heating coils start again.

5.2 Extra capacity

Electrical after heating

If the heat requirement exceeds the capacity of the unit, the electrical after heating (additional equipment) can be configured to ON in the main menu by the shortcut key.

5.3 Operating reliability

High pressure switch

In order to protect the compressor from exceeding its range of application, a high pressure switch is built in that will disconnect when the pressure becomes too high.

Activate the red reset button on the pressure switch when the cause of the fault has been established.

Overriding the supply air fan

If the supply air temperature exceeds 45 °C, the speed of the supply air fan will begin to increase. The supply air temperature will be maintained at 45 °C, if possible.

Overriding the extract air fan

If the exhaust air temperature for cooling exceeds 45 °C, and the speed of the extract air at level 3 is not set to 100

%, the extract air fan speed will begin to increase.

The exhaust air temperature will be maintained at 45 °C, if possible.


6. Maintenance

Follow the following instructions to achieve optimal performance:

Make sure that the counterbalancing weights on the fan wheels are not removed, as this will lead to disequilibrium and cause a higher level of noise and also wear to the fans.

Supply air and extract air valves

Clean the valves by drying with a dry cloth.

Make sure that the valves do not turn around, causing a change in the air flow.

Before opening the unit, turn off the power/pull out the plug and wait until the fans have stopped completely.

A couple of days after the primary installation check that the condensation outlet is working.

Environmental requirements

When repairing or dismantling the unit, statutory environmental regulations must be observed regarding recycling and destruction of various materials.

6.1 Unit

Filters

When the alarm “Change filter” flashes in the control panel display, the filters must be changed. Stop the system by the circuit breaker of the unit or by the circuit breaker on the terminal board. Open the front cover/filter drawers and remove the filters. After having changed the filters, reset the filter timer. The time interval for cleaning/changing the filters can be adjusted in the operating menu.

6.2 Alarms

(error messages)

Filter timer

The control has a filter timer in order to ensure that the filters are changed and optimal performance is maintained.

When the timer reaches the configured value, the alarm

“Change filter” will flash in the display until the filters have been changed. After having changed the filters, press the key for the filter symbol until the exclamation mark disappears and the system returns to normal operation.

Data error

This error message will appear if no communication is possible between the display and the control. Check that the cable connection is correct on terminals 21 to 24.

There is a danger of cuts from sharp discs.

The discs must not be damaged.

Vacuum cleaning or using pressurised air on the filters is not recommended.

Filter performance may be impaired.

G4 = Standard filter (basic filter class G4)

F5 = Fein filter (fine filter class F5)

F7 = Pollen filter (fine filter class F7)

21 Signal

22 Signal

23 10 Volt

24 0 Volt

Frost protection error

This error message will be displayed if a water after heater is fitted to the system and the temperature of the water after heater is too low, causing a danger of frost burst. The control will stop the system and open the motor-operated valve to keep the heater warm.

Pressure switch error

When the high pressure switch disengages, the message

“Pressure switch” will appear in the display until the red reset key of the pressure switch is activated.

Condensed water and condensation outlet

The condensation trays must be cleaned of dirt every autumn. Fill the condensation trays with water and check that the water drains away. If not, the outlets must be cleaned.

Check that the evaporator discs are also clean.

Heat exchanger

Inspect the heat exchanger every 3 years. If it is dirty, remove it and wash it in warm water with soap and rinse with a hand shower.

Fans

Inspect the fans for dirt in the fan wheels every 3 years.

Remove the front cover from the unit. Clean the fans with a brush, a bottle cleaner or a paint brush.

6.3 Dismantling/taking the system out of service

The following must be performed:

The power supply, i.e. the electric cables, must be disconnected. Disconnect the condensation outlet and power cables for any after heater/preheater. Disconnect cables for the control panel and demount ducts.

If the system should to be taken out of service, the ducts must be demounted to avoid condensed water in the system and in the ducts.

Close all supply air and extract air valves.


17

18

7. Troubleshooting

7.1 High pressure switch

The high pressure switch protects the heat pump from excessive pressure in the refrigerant circuit. In the event of disturbances, the high pressure switch will stop the compressor. The system will restart when the high pressure switch is reset manually.

Before unscrewing the front cover, turn off the power to the system.

Take off the front cover by removing the screws.

Press the red button for RESET.

7.3 Error on air side

No supply air to the living rooms

Error possibility:

• The fresh air filter is blocked by dirt and leaves in autumn or by snow and ice in winter.

• The unit is defrosting (the supply air fan is disconnected during defrosting)

No extract air from the wet rooms

Error possibility:

• The extract filter is blocked.

Cold air supply

Error possibility:

• The heat exchanger is blocked by dirt or ice.

• The extract filter is blocked.

If the error of your unit is none of the above listed errors, please contact:

• Within the guarantee period (0-2 years):

The installer from whom you have bought the system.

• After the guarantee period (2 years ->):

The installer from whom you have bought the system or the Genvex service department

(+45 7353 2765).

Before calling, please write down the data from the inscription plate (silver plate on the unit).

7.2 The system is not running

The system has stopped

Check the following:

• Is the display illuminated?

• Is the heat pump disconnected via the clock program?

• Is the high pressure switch disengaged?

• Is the cable attached between the control and the control panel?

• Has the filter not been changed (alarm “Change filter”)?

• Frost protection error.

Condensed water is leaking from the unit

Error possibility:

• The Condensation outlet is blocked by dirt.

• The condensation outlet is not adequately protected against freezing at low outdoor temperatures.

• The drain trap is not installed correctly.



19

Denmark

Genvex A/S

DK - 6100 Haderslev

Tel.: +45 73 53 27 00

Fax: +45 73 53 27 07

E-Mail: [email protected]

Belgium

Artiklima bvba

B - 9220 Hamme

Tel.: +32 (0) 52 41 25 41

Fax: +32 (0) 52 41 29 66


Ireland

ECO Systems Ireland Ltd

Co. Antrim BT54 6PH

Tel.: (UK 028) (ROI 048) +44 2076 8708

Fax: (UK 028) (ROI 048) +44 2076 9781


Croatia

Pichler & CO d.o.o.

10000 Zagreb

Tel.: + 385/ (0) 1/ 65 45 407

Fax: + 385/ (0) 1/ 65 45 409


Slovenia

Pichler & CO d.o.o.

2000 Maribor

Tel.: +386/ (0) 2/460 13 50

Fax: +386/ (0) 2/460 13 55


Great Britain

Total Home Environment Ltd

GB- Moreton in Marsh, GL 56 0JQ

Tel.: +44 (0) 845 260 0123

Fax: +44 (0) 1608 652490


Austria

J.Pichler Lufttechnik GmbH

A-9021 Klagenfurt

Tel.: +43 (0) 463 / 3 27 69

Fax: +43 (0) 463 / 3 75 48


world wide ...

Billund

Hamburg

Copenhagen

Intelligent ventilation systems from Genvex A/S

As ventilation specialists, we offer a product range that covers all aspects of modern ventilation equipment, from passive ventilation units with highly effective counter current heat exchangers to units with integrated heat pumps that are extremely energy-efficient for heating and cooling.

Published by Genvex A/S, Sverigesvej 6, DK-6100 Haderslev

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