FLEXIT K2.1 Air Handling Unit with Kitchen Hood and Control Automation User Manual

K2.1 Air Handling Unit with Kitchen Hood and Control Automation

Product Information

Product Name: Flexit K2.1
Model: ART.NO. 700114, 700116, 700118, 700119, 700122, 700123,
700124, 700126
Type: Air handling unit with kitchen hood and control
automation
Manufacture Date: 2021-10
User Manual: Included

Functional Description

The Flexit K2.1 is an air handling unit that includes a kitchen
hood and control automation. It is designed to provide ventilation
and heating for residential and commercial buildings. The unit
features a heating element for temperature control and operation of
the kitchen hood for extraction of air from the kitchen. The
product ensures proper indoor air quality by supplying fresh
outdoor air while extracting stale air and odors.

CI60 Control Unit Overview

The CI60 control unit is a component of the Flexit K2.1 system.
It provides user-friendly controls for adjusting ventilation
settings, temperature, and operating modes. Detailed information on
the CI60 control unit can be found in the user manual.

Symbols Used

• Supply air
• Extract air
• Extract air from kitchen
• Exhaust air
• Outdoor air
• DANGER: ELECTRICITY
• DANGER! DO NOT TOUCH
• FRONT
• EXAMPLE OF NIPPLE LOCATIONS (shown as left-hand model)
• EXAMPLE OF NIPPLE LOCATIONS (shown as a right-hand model)

Safety Instructions

• Read all the safety instructions and warning texts before using
  the unit to avoid electric shock or injury.

• Installation and maintenance must be carried out by qualified
  electricians.

• If any electrical parts need replacement, contact the
  manufacturer, the manufacturer’s service agent, or a similarly
  qualified person.

• Do not use the unit to extract combustible or flammable
  gases.

• Before opening the doors, turn off the heat, let the fans
  continue running to cool down the unit, unplug it, and wait for 2
  minutes.

• The unit should not be operated by children under 8 years old
  or individuals with reduced sensory or physical capacity, lack of
  experience or knowledge, unless supervised and instructed
  properly.

• Keep the unit out of reach of children and prevent them from
  playing with it.

• Regular cleaning and maintenance should be supervised to ensure
  safe use.

• The unit is designed to provide ventilation air in homes and
  commercial buildings. It should not be stopped except during
  service/maintenance or in case of an accident.

• Do not operate the unit without filters in place.

• Installation or repair involving water connections must be
  carried out by an authorized plumber.

• Water connections must be approved by a plumber to prevent
  water leaks.

Product Usage Instructions

1. Read the user manual provided with the Flexit K2.1 air handling
   unit.

2. Familiarize yourself with the functional description and
   control unit overview sections.

3. Ensure that the electrical installation of the unit is
   performed by a qualified electrician.

4. Follow the safety instructions mentioned above to prevent
   accidents and ensure safe use of the product.

5. For proper ventilation and heating, adjust the CI60 control
   unit settings according to your preferences. Refer to the user
   manual for detailed instructions on operating the control
   unit.

6. Regularly clean and maintain the unit as instructed in the user
   manual to ensure optimal performance and longevity.

7. If there are any issues or concerns with the product, contact
   the manufacturer or their authorized service agent for
   assistance.

111139EN-17 2021-10
Flexit K2.1
ART.NO. 700114, 700116, 700118, 700119, 700122, 700123, 700124, 700126
USER MANUAL
Air handling unit with kitchen hood and control automation

K2.1
2

Contents
1. Functional Description…………………………………………………………………………………….6 1.1. Heating element………………………………………………………………………………………………. 6 1.2. Operation of kitchen hood……………………………………………………………………………… 6
2. Cleaning/Maintenance…………………………………………………………………………………….7 2.1. Fans………………………………………………………………………………………………………………….. 7 2.2. Filters ……………………………………………………………………………………………………………….. 8 2.3. Changing the brush strips ………………………………………………………………………………. 8 2.4. Rotor ………………………………………………………………………………………………………………… 9 2.5. Tightening of rotor belt …………………………………………………………………………………… 9 2.6. External cleaning……………………………………………………………………………………………… 9 2.7. Mounting of door……………………………………………………………………………………………10 2.7.1. Kitchen hood…………………………………………………………………………………………………..11
3. CI60 control unit overview …………………………………………………………………………… 13 4. CI60 in use…………………………………………………………………………………………………… 14
4.1. General……………………………………………………………………………………………………………14 4.2. Increasing/reducing air supply ………………………………………………………………………14 4.3. Adjusting the air supply………………………………………………………………………………….14 4.4. Temperature adjustment ………………………………………………………………………………14 4.5. Filter replacement ………………………………………………………………………………………….14 4.6. Alarm……………………………………………………………………………………………………………….14 4.7. Reset ……………………………………………………………………………………………………………….15 5. CI600 control unit overview …………………………………………………………………………. 15 6. CI600 in use…………………………………………………………………………………………………. 16 6.1. General……………………………………………………………………………………………………………16 6.2. Idle mode ……………………………………………………………………………………………………….16 6.3. Menu navigation …………………………………………………………………………………………….16 6.4. Start menu………………………………………………………………………………………………………16 6.5. Operating status …………………………………………………………………………………………….16 7. CI600 main menu ………………………………………………………………………………………… 17 7.1. Fan speeds ……………………………………………………………………………………………………..17 7.2. Max. timer……………………………………………………………………………………………………….17 7.3. Settings……………………………………………………………………………………………………………17 7.4. Temperature …………………………………………………………………………………………………..17 7.6. Daily/weekly timer…………………………………………………………………………………………..18 7.5. Timer……………………………………………………………………………………………………………….18 7.7. Time and date…………………………………………………………………………………………………19 7.8. Language ………………………………………………………………………………………………………..19 7.9. Filter ………………………………………………………………………………………………………………..19 7.10. Alarm……………………………………………………………………………………………………………….19 7.11. Operating information……………………………………………………………………………………19 8. CI600 advanced user menu …………………………………………………………………………. 20 8.1. PIN …………………………………………………………………………………………………………………..20 8.2. Advanced user………………………………………………………………………………………………..20 8.3. Temperature regulation…………………………………………………………………………………20 8.4. Fan control ……………………………………………………………………………………………………..21 &RQJXUDWLRQ ………………………………………………………………………………………………….22 8.6. Operating time ……………………………………………………………………………………………….23 8.7. Service …………………………………………………………………………………………………………….24 8.8. Menu tree ……………………………………………………………………………………………………….25 9. Maintenance table ………………………………………………………………………………………. 26 10. Troubleshooting ………………………………………………………………………………………….. 27 11. Complaints ………………………………………………………………………………………………….. 28 12. Waste handling……………………………………………………………………………………………. 28

K2.1

3

Symbols used
These products bear a number of symbols used for labelling the actual product and in installation and user documentation.

K2.1

Supply air

Extract air

Extract air from kitchen

Exhaust air

Outdoor air

DANGER: ELECTRICITY

DANGER! DO NOT TOUCH

FRONT
EXAMPLE OF NIPPLE LOCATIONS (shown as left-hand model)

FRONT
EXAMPLE OF NIPPLE LOCATIONS (shown as a right-hand model)

DANGER! When a text box is

!

this colour, it means that a life-

threatening or serious personal

injury may be the consequence of

not following the instructions.

CAUTION! When a text box is this

!

colour, it means that material

damage may be the consequence

of not following the instructions.

4

NOTICE! When a text box is this

!

colour, it means that a poor

utilisation ratio or product

operating issues may be the

consequence of not following the

instructions.

INFO! When a text box is this
i FRORXULWbPHDQVWKDWLWFRQWDLQV
important information.

! SAFETY INSTRUCTIONS

· To avoid the risk of fire, electric

!

shock or injury, read all the safety

instructions and warning texts

before using the unit.

· All electrical connections must

be carried out by qualified

electricians.

· If the power lead is damaged, it

must be replaced by the

manufacturer, the manufacturer’s

service agent or a similarly

qualified person.

· The unit must not be used to

extract combustible or flammable

gases.

· It is the installer’s responsibility to

carry out a full safety and function

assessment of the appliance.

· Before opening the door: switch

off the heat, let the fans continue

IRUbPLQXWHVWRUHPRYHKRW

air, unplug the unit and wait

2 minutes before opening the

doors, as the unit contains

elements that must not be

touched when hot.

· This appliance may be used by

children of 8 years or above or

by persons with reduced sensory

capacity or reduced physical or

mental capacity, or by persons

lacking experience or knowledge,

provided they have received

instruction in the safe use of the

appliance or are supervised to

ensure safe use and providing

they are aware of the risks.

· The product is not suitable for

use by children. Children must

not be allowed to play with the

appliance. Children must not

carry out cleaning or maintenance

without supervision.

K2.1

5

· This unit is only designed for

!

ventilation air in homes and

commercial buildings.

· To maintain a good indoor

climate, comply with regulations

and avoid condensation damage,

the unit must never be stopped

apart from during service/

maintenance or in connection

with an accident.

· The unit must not be operated

without the filters being in place.

· All plumbing work must be

carried out by an authorised

plumber.

· The location of the water battery

must be approved by a plumber

owing to the risk of water leaks.

· Tumble dryers must not be

!

connected to the unit.

· The room must have a separate,

adequate air supply when

products such as gas cookers,

gas heaters, fireplaces, wood-

burning stoves, oil-fired boilers,

etc., are used.

1. Functional Description
See “8.8. Menu tree” at page 25 for component description.
Cold outdoor air passes through one half of the rotor (HR-R), while warm extract air passes through the other half, without the two mixing. Using this principle, a large proportion of the heat in the extract air is transferred to the supply air – the heat store principle (see system sketches). If the outdoor temperature is extremely low, a thermostat-controlled heating element (EB) also ensures that the supply air has the desired temperature. This supply air is passed via ducts and valves to living rooms and bedrooms. The extract air is extracted either from WKH VDPH URRP RU YLD GRRU JDSVRYHURZ JUDWLQJV WR toilets and wet rooms. The used air is passed via a duct VVWHP EDFN WR WKH XQLW JLYHV R LWV KHDW DQG LV H[SHOOHG from the building via a roof cowl, combi-box or wall grating. When there is no need for heat recovery (for example in the summer), the rotor stops.
1.1. HEATING ELEMENT
The heating element is protected against overheating by WKH WKHUPRVWDW ) ZKLFK VZLWFKHV R DW r& $V DQ additional safety measure, the thermostat (F10) switches R DW r& 7KHUPRVWDW ) QHHGV WR EH UHVHW PDQXDOO by pressing the reset button. <RX ZLOO QG WKH WKHUPRVWDW E RSHQLQJ WKH XQLW GRRUV (located directly over the heating element).
1.2. OPERATION OF KITCHEN HOOD
A – Knob for damper and for forced ventilation B – Pushbutton for light When cooking, open the damper by turning damper switch A.

1. Turn the knob to level 1. The damper will be half open.
2. Turn the knob to level 2. The damper will be fully open.
3. Turn the knob to level 3 and the unit will increase the air volume to speed 3 (forced ventilation).
4. You will need to turn the damper back manually ZKHQ FRRNLQJ LV QLVKHG
   B
   INFO! This is purely a ventilation
   i system and not a heating system.
   The home must be heated in the normal manner.
   6

K2.1
A

2. Cleaning/Maintenance

2

1

DANGER! Before opening the

!

door of the heat recovery unit

or carrying out maintenance on

the kitchen hood: VZLWFKRWKH

heat, let the fans continue for

three minutes to remove hot air,

3

disconnect power from the unit

and wait 2 minutes before opening

the doors.

INFO! Remember first to remove
i the safety lock at the top of the
door.
safety lock

1. Hold the door by its upper edge, which has a recessed grip.
2. Pull the door to release it from its catch. &KDQJHRXUJULSDQGOLIWWKHGRRUR NB! The door
weighs 10 kg.
2.1. FANS
The fans must be cleaned once a year. Clean the fan blades with a grease solvent on a cloth – or with brush and compressed air if possible. NB! Do not use water.

NOTICE! If the kitchen hood is used

!

often, the extract air fan must be

checked and if necessary cleaned

every four to six months.

The fans are removed as follows:

DANGER! Remember that the door

· /LIWRWKHGRRUDVLQGLFDWHG

!

is heavy (10 kg) when lifting it off

the unit.

· Remove the cover of the electrical compartment. · Pull out the fans’ electrical quick-release contacts. · Pull out the fans.

K2.1

7

K2.1

2.2. FILTERS
7KHOWHUVKDYHDOLPLWHGOLIHDQGWRSUHVHUYHDKHDOWK indoor air quality it is important to change them when they are dirty.
+RZ RIWHQ WKH OWHUV QHHG WR EH FKDQJHG GHSHQGV RQ the degree of contamination of the air where they are LQVWDOOHG Q JHQHUDO WKH OWHUV QHHG WR EH FKDQJHG at least once a year, preferably in the autumn (after the pollen season). In areas with a lot of dust and FRQWDPLQDWLRQ WKH OWHUV VKRXOG EH FKDQJHG LQ WKH spring and autumn.
‘LUW OWHUV FDQ DPRQJ RWKHU WKLQJV OHDG WR · Reduced performance of the unit · The unit becoming dirty · Humidity damage · Reduced indoor air quality
$ OWHU VXEVFULSWLRQ LV UHFRPPHQGHG WR HQVXUH IXOO EHQHW IURP WKH VVWHP

Change both filters (supply air and

!

exhaust air) at the same time.

Make sure that the filter is not

!

damaged during fitting. A damaged

filter reduces the unit’s power and

air purity.

Clogged filters may reduce heat

!

recovery in the ventilation unit and

cause humidity damage.

Please note that a complaint may be rejected if you use D OWHU RWKHU WKDQ DQ RULJLQDO )OH[LW OWHU )RU WKH ULJKW OWHU VHH $FFHVVRULHV XQGHU RXU XQLW RQ Flexit’s website.
2.3. CHANGING THE BRUSH STRIPS
The brush strips become worn over time. If they do not sit tightly against the rotary wheel-type heat exchanger, it may be necessary to change them (product code 102686). Alternatively, they can be moved closer to the URWRU DV WKH DOXPLQLXP SUROH WKH DUH PRXQWHG LQ KDV two grooves.

DANGER! Unplug before starting! !

Proceed as follows: Disconnect the rotor’s quick-release contact by pressing the release down and pulling the contact (see Fig. 1-1). Pull the rotor module straight out (see Fig. 1-2).
Fig. 1

Check that the filter’s seal is intact

!

before inserting the filter.

Then push the filter properly into

place to prevent air leakage.

2

CAUTION! The unit must not be

!

used without a filter.

It is important to use a Flexit

!

original filter.

1

I RX XVH D OWHU RWKHU WKDQ D )OH[LW RULJLQDO OWHU the ventilation unit may not work as intended. Flexit therefore accepts no liability for any operating faults
8

5HPRYHWKHVFUHZLQWKHFHQWUHRIWKHDOXPLQLXPSUROH DQGSXOOWKHSUROHRXWVHH)LJ Pull the brush strips out of the groove. Move them up from level 1 to level 2 (see Fig. 3), or replace them with new ones if they are completely worn out.
Fig. 2

2.5. TIGHTENING OF ROTOR BELT
The rotor belt can be tightened by releasing the screws (one on each side) holding the rotor motor in place (see Fig. 4). Reposition the rotor motor, thereby tightening the belt (see Fig. 5). Tighten the screws again.

Fig. 3

Fig. 4

level 1

level 2
2.4. ROTOR
$VWKHXQLWKDVOWHUVZLWKDKLJKLPSHUPHDELOLWFODVV installed, it is not usually necessary to clean the rotor. If for various reasons it should still be necessary, dust can be removed with a soft brush. Further cleaning is possible if you remove the rotor, spray it with fat-soluble detergent and then blow it clean from the opposite side. Distance approximately 60mm and max. pressure 8,0 bar. Ensure that the motor is not exposed to water during cleaning. Ensure that all seals around the rotor are intact and tight.

Fig. 5
2.6. EXTERNAL CLEANING
Many kitchen surface cleaners contain chemicals that may damage the product’s plastic components. Therefore use a soft cloth moistened with warm water and a neutral detergent to clean the outside of the product. Important! Do not use abrasive cleaners or scouring powder, as they will damage the colour. Products that JLYHVWDLQOHVVVWHHODQDQWLQJHUSULQWFRDWLQJPXVWQRW be used either.
1%7RUHPRYHQJHUSULQWVIURPWKHVWDLQOHVV YHUVLRQZHUHFRPPHQGDSSOLQJEDERLOZLWKDVRIW FORWK

CAUTION! Do not use detergent

!

that is harmful to aluminium or the

environment.

K2.1

9

2.7. MOUNTING OF DOOR
Fig. 6

K2.1

1

2

3

1. Lower the front edge of the door into the leading edge of the unit.
2. The guide pins on the door must pass through the base of the unit.
3. Push the top edge of the door to lock it.

DANGER! For safety reasons,

!

always mount the door

screw when you’re finished

maintaining the ventilation unit!

10

2.7.1. Kitchen hood Wipe the volume hood with a damp cloth and detergent..

Fig. 7

NOTICE! The filter must be cleaned

!

roughly twice a month with normal

use.

‘LVPRXQWWKHOWHUVHHJVDQGDQGSODFHLWLQKRW water ZLWKZDVKLQJXSOLTXLG7KHOWHUFDVVHWWHFDQ also be washed in the dishwasher. Several times a year the volume hood should be cleaned internally. Wipe it internally with a damp cloth and detergent. Replace the OWHUFDVVHWWHDQGSUHVVLWXSVRWKDWLW[HVWRWKHVQDS

Fig. 8

K2.1

11

DANGER! The risk of fire increases

!

if the volume hood is not cleaned

as often as specified.

7RFKDQJHWKHXRUHVFHQWWXEHUHPRYHWKHODPSJODVV by pressing the snap locks in the direction of the arrow, Fig. 9. 7KHXRUHVFHQWWXEHFDQQRZEHDFFHVVHGIRU replacement.

Light source
Power Earth

International ILCOS code DR-6/830-G23
6W G23

Sylvania designation
ToLEDo Lynx S G23 6W/830 SL
6W
G23

Osram designation
DULUX S LED EM 6 W/830 G23
6W
G23

Fig. 9

Type of lamp LED Single-ended two-pin plug-in G23 base T12 Recommended max. lamp power 6 W

K2.1

12

3. CI60 control unit overview

8

3

4

9

1*

5

10

2

6

11

7

12

No. Description 1* Switch for increased ventilation 2 Switch for decreased ventilation 3 Indication of MAX speed 4 Indication of NORMAL speed 5 Indication of MIN speed 6 Indication of ALARM 7 Indication of FILTER REPLACEMENT 8 Potentiometer for adjusting extract air at NORMAL
speed 9 Potentiometer for adjusting supply air at NORMAL
speed 10 Switch for additional heating OFF/ON 11 Potentiometer for adjusting supply air temperature 12 Switch to reset the alarm

7KHJXUHVDUHXVHGDVUHIHUHQFHVLQVXEVHTXHQWGHVFULSWLRQV
Nos. 8, 9 and 10 are used to adjust the unit before it is XVHG IRU WKH UVW WLPH

K2.1

13

K2.1

4. CI60 in use
4.1. GENERAL
The control unit consists of a touch panel with pushbuttons, LEDs for indication and adjustment potentiometers and switches for adjusting the ventilation unit. The control unit communicates with the ventilation unit via a low-voltage cable.

4.2. INCREASING/REDUCING AIR SUPPLY
Use switches 1 and 2 to increase and reduce the fan VSHHG DQG WKXV WKH DLU RZ ‘LHUHQW VSHHGV GHSHQGLQJ on the operating situation.

MIN NORMAL MAX

‘R QRW XVH GXULQJ UVW HDU RI RSHUDWLRQ RU when the building is in use.
Used under normal conditions. In this setting, the air supply must be adjusted according to current regulations.
Used if there is a need for increased air supply on account of increased occupancy or a higher humidity level, for example during showering or when clothes are being dried. This setting is usually used for limited periods of time.

7KH GLHUHQW VSHHGV DUH LQGLFDWHG ZLWK /(‘V DQG

4.3. ADJUSTING THE AIR SUPPLY
$W 1250$/ VSHHG OHYHO WKH DLU RZ PXVW EH DGMXVWHG according to project data. Potentiometer 9 is used for the supply air level and potentiometer 8 for the extract air level. The adjustment range is 20-100% of the maximum level according to the scale of the potentiometer.

Factory settings:

MIN

[HG

NORMAL 75% (variable)

MAX

[HG

9

8

10

11

4.4. TEMPERATURE ADJUSTMENT
The temperature required in the supply air can be set with potentiometer 11. The adjustment range is 10 – 30 r& 8VLQJ WKH IDFWRU VHWWLQJV LV UHFRPPHQGHG
If necessary, the ventilation unit’s heating can also be switched ON/OFF with switch 10. In this case only the rotating heat exchanger is used as a source of heat. It is best to leave it in ON position, as the unit will then respond automatically when there is a need for additional heating.

ON

OFF

ITEM 10

4.5. FILTER REPLACEMENT
Every six months, LED 7 lights up to remind you that it is WLPH WR UHSODFH WKH DLU OWHUV LQ WKH XQLW 6HH VHFWLRQ IRU PRUH LQIRUPDWLRQ RQ OWHU UHSODFHPHQW
After the activity has been carried out, the indicator must be reset. See more under the Reset section.

4.6. ALARM

If anything unforeseen occurs with the

ventilation unit, indicator 6 lights up.

!

The signal given by the indicator depends on

the reason for the indication.

A permanent light indicates: · Fault return water detector (B5) · Heat recovery fault (B)

$ SHUPDQHQW OLJKW ZLWK LQGLFDWRU 01 VSHHG DVKLQJ indicates: · Fault supply air detector (B1) · Fault extract air detector (B3) · Fault outdoor air detector (B4)

$ DVKLQJ OLJKW LQGLFDWHV · Overheating thermostat fault (applies only to electric
heating) · )DXOW LQ H[WHUQDO UHVPRNH GHWHFWRU DFFHVVRU · Heat recovery fault (A) · Additional heating fault (applies only if the unit has a
water battery)

12 14

4.7. RESET
$IWHU WKH OWHU KDV EHHQ UHSODFHG RU WKH FDXVH RI WKH alarm repaired, the alarm must be reset. This is done by pressing switch 12.
If the indicator goes out, the action has been carried out correctly. If the indicator remains on, the fault has not been repaired correctly.

NB! If thermostat F10 trips, the unit will have to be opened up and physically reset EHIRUH resetting on the panel. If the alarm trips repeatedly, contact the service company or distributor.

5. CI600 control unit overview

6

1*

7

2

8

3

9

4

5

No. Description 1* UP/INCREASE switch 2 BACK/CANCEL/NO switch 3 DOWN/DECREASE switch 4 OK/YES switch 5 OHJE 6 Display 7 Indication of OPERATION/OK – Green light 8 Indication of FILTER REPLACEMENT – Yellow light 9 Indication of ALARM – Red light

7KHJXUHVDUHXVHGDVUHIHUHQFHVLQVXEVHTXHQWGHVFULSWLRQV

K2.1

15

K2.1

6. CI600 in use
6.1. GENERAL
The control unit consists of a colour display, a touch panel and indicators (LEDs). The unit communicates with the ventilation unit via a low-voltage cable.

6.2. IDLE MODE
If the touch panel is not used, the control unit will, after a certain period of time, enter idle mode, in which operating information will be displayed.

A

BC

13.08.2009
16:43

18°C 22°C

– NORMAL

D

EF

A.

Time and date

B.

Outdoor air temperature

C.

Room temperature

D.

Current speed

E.

Additional heating activated/deactivated

F.

Daily/weekly timer active

6.3. MENU NAVIGATION
Buttons 1 and 3 are used to navigate through the menu lines. The cursor is illustrated by the line being light blue. If it is possible to make a selection on the current menu line, this is displayed with OK? to the right of the line. A VHOHFWLRQ LV FRQUPHG E SUHVVLQJ EXWWRQ If a menu line contains submenus, this is illustrated with D ! VLJQ DW WKH HQG RI WKH OLQH

SETTINGS

TEMPERATURE

TIMER

DAY/WEEK SETTINGS

OK?

TIME AND DATE

LANGUAGE

FILTER

ALARM

ADVANCED USER

OPERATING INFORMATION

If you select a function that has numerical values, the current value is displayed with a light blue cursor. The value is changed with buttons 1 and 3 and is then FRQUPHG E SUHVVLQJ EXWWRQ

TIME AND DATE

TIME

DAY MONTH YEAR

13 : 45 04.07.09 OK?

If several values can be changed, the cursor jumps to WKH ULJKW ZKHQ D VHOHFWLRQ LV FRQUPHG ZLWK EXWWRQ The procedure is repeated until all values have been changed to the desired values.
If you want to cancel a function or return to the previous menu screen, use button 2.
%XWWRQ DFWLYDWHV D KHOS WH[W WKDW EULH GHVFULEHV WKH current menu screen.

6.4. START MENU
When the system is started, a start menu is opened.

START MENU

LANGUAGE

OK?

TIME AND DATE

MAIN MENU

The basic language and date settings are set in this menu. When this activity has been carried out, you choose to go to the main menu.
6.5. OPERATING STATUS
In normal operation without problems, the green LED 7 OLJKWV XS WR FRQUP WKDW HYHUWKLQJ LV ZRUNLQJ QRUPDOO +RZ DQ SUREOHPV DHFW WKH VVWHP LV GHVFULEHG LQ subsequent sections.

16

7. CI600 main menu
7.1. FAN SPEEDS
The main menu contains various choices. Most concern fan speeds. The speed selected is indicated with large fan symbols and bold font.

MAIN MENU

MIN

NORMAL

OK?

MAX

MAX TIMER

7.2. MAX. TIMER
This menu item activates a function that increases the speed to MAX for a limited period of time before subsequently returning to the speed selected previously. The period of time can be adjusted under the SETTINGS menu item.

MAIN MENU

MIN

NORMAL

OK?

MAX

MAX TIMER

SETTINGS

To change the speed, move the cursor with buttons 1 and 3.

MAIN MENU

MIN

NORMAL

MAX

OK?

MAX TIMER

SETTINGS

7KHQ FRQUP RXU VHOHFWLRQ ZLWK EXWWRQ DQG WKH VSHHG selected is highlighted with large fan symbols and bold font.

MAIN MENU

MIN

NORMAL

MAX

OK?

MAX TIMER

SETTINGS

SETTINGS

When the function is active, the time is counted down on the display. If you select TIMER OFF, the function will be cancelled and the speed will return to the previous selection.

7.3. SETTINGS
Under the SETTINGS menu item, you can adapt the system as you want.

SETTINGS

TEMPERATURE

TIMER

DAY/WEEK SETTINGS

OK?

TIME AND DATE

LANGUAGE

FILTER

ALARM

ADVANCED USER

7.4. TEMPERATURE
Here you set the temperature for the air that enters the building.
TEMPERATURE

MIN

Must not be used when the home is in use.

Must not be used in the first year of operation.

NORMAL Used under normal conditions. With this setting, the air supply must be adjusted according to current regulations.

MAX

Used if there is a need for increased air supply on account of higher occupancy or a raised humidity level, for example during showering or when clothes are being dried. This setting is normally used for limited periods.

K2.1

18 °C

OK?

HEATING ELEMENT ON/OFF

:H UHFRPPHQG DGMXVWLQJ WKH WHPSHUDWXUH WR PD[ r so that the air is mixed optimally with the air already in the building.
17

K2.1

In the HEATING ELEMENT OFF/ON menu item, the additional heating in the ventilation unit can be switched R Q VXFK FDVH RQO WKH URWDWLQJ KHDW H[FKDQJHU LV used as a source of heat.
If necessary, the ventilation unit’s heating can also be WXUQHG R Q WKLV FDVH RQO WKH URWDWLQJ KHDW H[FKDQJHU is used as a source of heat. It is best to leave it ON, as the unit will then respond automatically when there is a need for additional heating.
NB! This is not possible if the unit is installed with a water battery.
I WKH KHDWLQJ HOHPHQW LV VZLWFKHG R WKLV VPERO is displayed when the display enters idle mode.

HEATING ELEMENT ON/OFF

HEATING ELEMENT

ON OK?

7.6. DAILY/WEEKLY TIMER
The programming of the timer begins by selecting the day.

DAY / WEEK SETTINGS

MONDAY

TUESDAY

OK?

WEDNESDAY

THURSDAY

FRIDAY

SATURDAY

SUNDAY

A new menu screen appears under each day.
TUESDAY
1 08:00-16:00 MIN 16° 2 16:00-18:00 NORMAL 18° 3 18:00-19:00 MAX 16° 4 19:00-24:00 NORMAL 18°

7.5. TIMER
Here you set the time you want for the MAX TIMER function. This is used when the function is activated from the main menu.
TIMER

60 min

OK?

7R DGMXVW WKH WLPH LQWHUYDO IRU 0$; 70(5 VHHbFKDSWHU 8.4 under “Timer”.

(DFK GD FDQ EH SURJUDPPHG ZLWK IRXU GLHUHQW WLPH intervals. Adjust the start and stop times for each interval and then adjust the desired speed and temperature. To activate the interval, select a green tick. A red cross means that the interval is not activated. If necessary, then select another interval and repeat the procedure.

NOTICE! The following rules apply

!

to the programming:

· A time interval with a higher

number can never be started

before a previous one has been

finished.

· The stop time can never appear

before the start time.

$IWHU RX KDYH QLVKHG SURJUDPPLQJ D GD UHSHDW WKH procedure for other days.
When the timer is active, this symbol is displayed when the display enters idle mode.
If there is no new time interval registered after the QLVKHG SHULRG WKH VSHHG DQG WHPSHUDWXUH UHWXUQ WR the setting that was previously active.

18

7.7. TIME AND DATE
The time and date can be adjusted in this dialog.
TIME AND DATE
TIME DAY MONTH YEAR
13 : 45 04.07.09 OK?

7.8. LANGUAGE
The language selected can be changed in this dialog.

LANGUAGE

NORSK

ENGLISH

OK?

SVENSKA

DEUTCH

NEDERLANDS

SUOMI

DANSK

The normal time is 6 – 12 months, depending on the environment.
:KHQ WKH OWHU DODUP LV WULJJHUHG WKH HOORZ LQGLFDWRU 8 lights up and an information text appears. Follow the instructions in the text. It is possible to go directly to this dialog from the message or via the menu tree. After the DODUP KDV EHHQ UHVHW WKH FRXQWGRZQ WR WKH QH[W OWHU replacement begins.

7.10. ALARM
If a problem occurs in the operation of the ventilation unit, an alarm will be triggered. The red indicator 9 lights up and an information text appears in the display. Follow the instructions in the text. It is possible to go directly to this dialog from the message or via the menu tree.
NB! If thermostat F10 trips, the unit will have to be opened up and physically reset before resetting on the panel. If the alarm is tripped repeatedly, contact the service company or distributor.

ALARM

RESET ALARM

OK?

7.9. FILTER
A reminder appears regularly in the display. In this GLDORJ WKH WLPH LQWHUYDO FDQ EH DGMXVWHG DQG WKH OWHU alarm reset.

FILTER

INTERVAL CHANGE OF FILTER

RESET FILTER ALARM

OK?

INTERVAL CHANGE OF FILTER

6 MND

OK?

7.11. OPERATING INFORMATION
This general screen displays current temperature values, whether the daily/weekly timer is active and activity as 0-100% for cooling, heat exchanger and additional heating.

OPERATING INFORMATION

SET TEMPERATURE DAY / WEEK SETTINGS SUPPLY AIR EXTRACT AIR OUTDOOR AIR RETURN WATER HEAT RECOVERY SYSTEM COOLING HEATING

22° AKTIV 22° 21° 0° 35° 100% 0% 100%

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K2.1

8. CI600 advanced user menu
INFO! For more information on the
i “Advanced User” menu, refer to
the “CI600 Reference Manual” on Flexit’s homepage.
8.1. PIN
To access the menu item, you need to enter the PIN 1 0 0 0.
PIN CODE

1 0 0 0

OK?

Regulation type If supply air regulation is selected, no further settings can be set here. If extract air regulation is selected, the max. and min. supply air temperatures can also be VSHFLHG

REGULATION TYPE
REGULATION MAX SUPPLY AIR TEMP MIN SUPPLY AIR TEMP

EXTR OK? 35° 15°

Cooling
INFO! Flexit does not supply or
i project cooling machines.

8.2. ADVANCED USER
This menu contains functions for monitoring, FRQJXUDWLRQ DQG WURXEOHVKRRWLQJ QIRUPDWLRQ WR do with adjustment can be found in the installation instructions. Complete documentation of all menus, LQFOXGLQJ FRQJXUDWLRQ IRU DFFHVVRULHV DQG H[WUDV HWF is described in the CI600 reference manual, which is DYDLODEOH DW ZZZH[LWFRP

ADVANCED USER

TEMPERATURE REGULATION

FAN REGULATION

OK?

CONFIGURATION

OPERATING TIME

FACTORY SETTINGS

SERVICE

8.3. TEMPERATURE REGULATION
Q WKLV PHQX VFUHHQ RX FRQJXUH WKH WHPSHUDWXUH regulation and cooling functions.

TEMPERATURE REGULATION

REGULATION TYPE

COOLING

NEUTRAL ZONE

OK?

EXT. TEMP. CONTROL

In this dialog, the cooling function is activated and the parameters MIN OUTDOOR AIR TEMP for supply of cooling and MIN SPEED for supply of cooling are VSHFLHG I D ‘; FRROLQJ PDFKLQH LV XVHG WKH VXSSO GHOD LQWHUYDO FDQ EH VSHFLHG

COOLING
COOLING MIN OUTDOOR TEMP MIN SPEED RESTART DELAY COOLNESS RECOVERY

AV OK? 18° MIN 180 s

It is also possible to activate a function to recover cooling in the building using the rotating heat exchanger. Enter WKH GHVLUHG GLHUHQFH EHWZHHQ WKH RXWGRRU DQG LQGRRU air temperatures for when the function is activated.

COOLNESS RECOVERY
COOLNESS RECOVERY DIFF

OFF OK? 1°

20

Neutral zones To achieve more even temperature regulation, the neutral zones can be set in this menu.

NEUTRAL ZONE
COOLNESS RECOVERY HEAT RECOVERY SYSTEM

2° OK? 1°

SUPPLY AIR
MIN SPEED NORMAL SPEED MAX SPEED

50% OK? 75% 100%

External temperature control Control of the temperature settings from an overall system must be entered in this menu. In this case, the temperature settings in the control unit are overridden.

EXT. TEMP. CONTROL
EXT. TEMP. CONTROL

OFF OK?

Factory settings:

MIN

50%

NORMAL 75%

MAX

100%

Timer Settings are entered in this menu for the speed and time WKDW DUH WR DSSO WR WKH 0$; 70(5 IXQFWLRQ LQ WKH PDLQ menu.

TIMER
STANDARD SPEED STANDARD TIME

MAX OK? 30 m

8.4. FAN CONTROL
7KH IDQV DUH VHOHFWHG DQG FRQJXUHG LQ WKLV PHQX screen.

FAN REGULATION

SUPPLY AIR

EXTRACT AIR

TIMER

OK?

AIR VOLUME COMP

$LURZUDWHFRPSHQVDWLRQ This function can be activated via an input on the control card. The speeds required for each fan are selected here. The function can be used with a kitchen fan or other device that requires additional supply air.

AIR VOLUME COMPENSATION

SUPPLY AIR EXTRACT AIR

MAX OK? MIN

Adjustment (supply air and extract air) This dialog is identical for the supply air and extract air fans. The fans are adjusted individually to the desired capacity for the respective speed.

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21

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8.5. CONFIGURATION
7KH JHQHUDO FRQJXUDWLRQ LV VHW LQ WKLV PHQX VFUHHQ

CONFIGURATION

SENSORS

FIRE/SMOKE

COMMUNICATION

OK?

START/STOP SEQUENCE

REST MODE

If the pressure guard is activated, an external sensor must be connected to the control card. The sensor UHSODFHV WKH LQWHJUDWHG OWHU WLPH FRQWURO

FILTER GUARD
ACTIVATION

OFF OK?

Sensors The temperature sensors can be calibrated in this menu to be better coordinated with the real situation, and a pressure sensor is activated as a pressure guard instead of the integrated time control.

SENSORS

SUPPLY AIR

EXTRACT AIR

OUTDOOR AIR

OK?

RETURN WATER

FILTER GUARD

Fire/Smoke This function requires an external sensor to be connected to the control card.

FIRE/SMOKE
MODE

1 OK?

The menu screen is identical for all temperature sensors DQG WKH FDQ EH DGMXVWHG ZLWKLQ DQ LQWHUYDO RI r&

SUPPLY AIR
CALIBRATION

0 OK?

Mode 1 2 3 4

Supply air fan STOP MAX STOP MAX

Extract air fan STOP MAX MAX STOP

22

Communication Proceed to the “HOME/AWAY”submenu. This function can be used to make the unit run on other operating settings using an external switch.
NB! 7KH VHWWLQJV KDYH QR HHFW XQOHVV DQ H[WHUQDO VZLWFK is connected.
The settings are entered for the AWAY selection. Speed and temperature can be selected, plus how long after DFWLYDWLRQ WKH QHZ VHWWLQJ VKRXOG WDNH HHFW

COMMUNICATION

HOME/AWAY

OK?

8.6. OPERATING TIME
This menu screen displays the ventilation unit’s total operating time and how much time has passed since the ODVW OWHU UHSODFHPHQW

OPERATIONS COUNTER

OPERATING TIME FILTER STOP MIN NORMAL MAX ROTOR HEATING ELEMENT

459.7 TIM 459.7 TIM 0.0 TIM 123.0 TIM 161.4 TIM 178.0 TIM 0.4 TIM 0.3 TIM

Standby mode In this menu you can adjust the time it takes before the display enters idle mode.

REST MODE
TIME DELAY

2 min OK?

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23

K2.1

8.7. SERVICE

INFO! Passwords are only revealed
i in consultation with Flexit’s service
department.

De-icing The integrated de-icing function is not activated at the time of delivery of the ventilation unit. 7KH IXQFWLRQ FDQ EH FRQJXUHG DQG DFWLYDWHG LQ WKLV menu screen.
Search path for menu selection Main menu/Settings/Advanced user/Service/Defrosting

DE-ICING
DE-ICING START TEMPERATURE PERIOD TIME FREQUENCY ROTOR SPEED START FAN REDUCTION PERIOD TIME FREQUENCY FAN SPEED

OFF OK? -9° 60 min 1/TIM 15 -14° 60 min 1/TIM 50%

De-icing Activates/deactivates the function.
Start temperature The start temperature for the defrosting function is set here. The temperature in question is the outdoor temperature.
Period time Period time for de-icing operation.
Frequency Decides how many times the period shall be repeated per hour.
Rotor speed When the start temperature has been reached, the speed of the drive motor of the rotating heat exchanger LV UHGXFHG WR WKH VSHFLHG 530
Start fan reduction As an additional safety function, the speed of the supply DLU IDQ FDQ EH UHGXFHG 7KLV WDNHV HHFW DW WKH VHW outdoor temperature.

Period time Period time for de-icing operation.
Frequency Decides how many times the period shall be repeated per hour.
Fan speed As an additional safety function, the speed of the supply DLU IDQ FDQ EH UHGXFHG 7KLV WDNHV HHFW DW WKH VHW outdoor temperature.

De-icing – Parameters

Parameter De-icing Start temperature Period time Frequency Rotor speed Fan reduction Period time Frequency Fan speed

Default OFF -9 60 1 15 -14 60 1 50

Range OFF/ON (-5) ­ (-45) 1­60 1­10 15­180 (-5) ­ (-45) 1­60 1­10 20­100

Unit r& min. no./hour rpm r& min. no./hour %

24

8.8. MENU TREE

MAIN MENU

TEMPERATURE

HEATING ELEMENT ON/OFF

TIMER DAY/WEEK SETTINGS
TIME AND DATE

MONDAY SUNDAY

LANGUAGE FILTER ALARM

RESET FILTER ALARM FILTER CHANGE INTERVAL

ADVANCED USER

PIN

REGULATION TYPE

COOLING

NEUTRAL ZONE

TEMPERATURE REGULATION

EXT. TEMPERATURE CONT.

FAN CONTROL

SUPPLY AIR

CONFIGURATION

EXTRACT AIR

OPERATING TIME

TIMER

FACTORY SETTINGS

AIR FLOW RATE COMP.

SERVICE

K2.1

SYSTEM INFORMATION PRODUCTION DATA TEST ALARM SPECIAL FUNCTIONS DE-ICING PARAMETERS

SENSORS FIRE/SMOKE COMMUNICATION START/STOP SEQUENCE IDLE MODE
25

COOLING RECOVERY
SUPPLY AIR EXTRACT AIR OUTDOOR AIR RETURN WATER FILTER GUARD HOME/AWAY

K2.1

9. Maintenance table

Component Filters
Fans
Heat exchanger Kitchen hood Seals Valves Air intake Roof cowl
Ducts

Filters should be changed at least once a year. You are advised to change them twice a year. %HIRUHDQGDIWHUWKHSROOHQVHDVRQ&KHFNWKDWWKHOWHUVHDOLVFRPSOHWHOWLJKW
)DQVVKRXOGEHFOHDQHGDWOHDVWRQFHDHDUWRPDLQWDLQIDQHFLHQFIWKHNLWFKHQKRRGLVXVHG often, the extract air fan must be checked and if necessary cleaned every four to six months.
Check that the surfaces are clean. Check that the sealing strips lie in against the heat exchanger. Make sure that rotor driving belt is in good condition and well adjusted.
:DVKWKHJUHDVHOWHU&KHFNWKDWWKHGDPSHULVFOHDQDQGFORVHVIXOO
Check that the seals in the unit are intact.
To be cleaned at least once a year.
Check that no leaves and other items are caught in the grille.
If the unit has a roof cowl, this must be checked for leaves and the like. Also check that the drain slots are open.
Tarkista, että kanavat ovat puhtaat.

Interval 6-12 months
4 months
12 months
2 weeks 12 months 12 months 12 months 12 months
10 years

26

10. Troubleshooting

INFO! In the case of a power cut,
i the unit will automatically return to
normal operation (user’s settings) when starting up again.

Type of fault Cold draughts
Fans not working
Low air volume

Remedial action
Check which supply temperature has been selected. See operating panel. Check that the rotor is rotating. Check that heating comes on. 1HHGVQHZH[WUDFWOWHU
Check that the power to the unit is connected. Check that the overheating thermostat has not cut out. Reset by pressing the button. Also needs correcting on the automatic control panel. Check that the unit has not been set in stop position.
Check the speed the unit is set to. &KHFNWKDWWKHOWHUVWWLJKWO Check the intake grille.

INFO! If none of this helps, please
i contact your supplier for service.
Please state the model designation and serial number (on the rating plate inside the unit/open door).

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27

K2.1

11. Complaints

Warranty claims will only be valid

i

if the instructions in the manuals

have been followed.

Complaints about this product may be raised in accordance with the applicable terms of sale, SURYLGHGWKDWWKH SURGXFWKDVEHHQXVHGDQGPDLQWDLQHGFRUUHFWO The right of complaint may be voided if the system is used incorrectly or maintenance is grossly neglected.
Complaints as a result of incorrect or defective installation must be submitted to the installation company responsible.
Filters are consumables.

12. Waste handling
The symbol on the product shows that this product must not be treated as household waste. It must be taken to a collection point for recycling electrical and electronic equipment.
By ensuring correct disposal of the equipment, you will help to prevent the negative consequences for the environment and health that incorrect handling may entail.
For further information on recycling this product, please contact your local authority, your refuse collection company or the company from which you purchased it.

Our products are subject to continuous development and we therefore reserve the right to make changes.
We also disclaim liability for any printing errors that PDbRFFXU

28

K2.1

29

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K2.1

31

Flexit participates in the ECP programme for RAHU. &KHFNRQJRLQJYDOLGLWRIFHUWLFDWH ZZZHXURYHQWFHUWLFDWLRQFRP

The product is listed in the database for building products that can be used in Nordic Swan Ecolabelled buildings.

Flexit AS, Televeien 15, N-1870 Ørje www.flexit.no

References

• art.no
• Bedre inneklima - Flexit

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