Flexit Spirit K2R User manual

102608E-01
2009-10
User manual and
installation instructions
Air handling unit with kitchen hood
FLEXIT SPIRIT K2 R

2
Contents
User instructions
1 Functional Description 4
1.1 Heating element 4
1.2 Operation of kitchen hood 4
2 Cleaning/Maintenance 5, 6, 7
3 Maintenance table 8
4 Troubleshooting 9
Installation instructions
5 Installation/Preliminaries 10
5.1 Inspection/Maintenance 10
5.2 Space Required 10
5.3 Location requirements 10
5.4 Recommended sound attenuation for wall-mounting 11
6 I nstallation of Flexit SPIRIT K2 R 12
6.1 Installing the volume hood 12
7 Connection of unit and electrical work 13
7.1 Connection of unit 13
7.2 Electrical work 13
7.3 Automatic Control 13
7.4 External components 13
8 Sizes/Physical Dimensions 14
8.1 Dimensioned sketch 14
9 General Drawings and System Drawings 15
10 Capacity and sound data 16
10.1 Capacity diagram, sound data, specifications - K2 R AC 16
10.2 Capacity diagram, sound data, specifications - K2 R EC 17
11 Technical data 18
12 Adjusting the Kitchen Hood 19
12.1 Forced Ventilation 19
13 Adjustment Curves 20
13.1 Forced ventilation 20
14 Final checks/first use 21
14.1 Final Checks 21
14.2 First use 21
15 EC Declaration of Conformity 22
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 may occur.

3
It is the installer's responsibility to carry out a full safety and function assessment of the appliance
To reduce the risk of fire, electric shock or injury, read all the safety instructions and warning texts before
using the appliance.
• This unit is only designed for ventilation air in buildings.
• It must not be used to extract combustible or flammable gases.
• Remove the power plug before commencing any service and maintenance work.
• Before opening the door, current to the unit must be turned off and the fans must have had time to stop (min. 3 mins.).
• The unit contains heating element which must not be touched when it is hot.
• The unit must not be operated without the filters being in place.
• Do not cook substances which could catch fire under the ventilator.
• Do not leave a saucepan or frying pan containing oil or grease unsupervised.
• Follow the instructions in the user manual.
To maintain good indoor air quality, comply with regulations and to avoid condensation damage the unit must never be stopped
apart from during service/maintenance or in connection with an accident.
Important Safety Instructions:
!
According to IEC/EN 60335-1
Note that the product is not designed for operation by person with impaired
physical, motor or mental abilities. The product must also not be used by
persons who lack experience or knowledge, unless they have received guid-
ance or instructions in operating the product safely by a person responsible
for safety.
EXAMPLE OF NIPPLE LOCATION
(shown as right-hand model)
HIGH VOLTAGE
DANGER! DO NOT TOUCH
Symbols Used
These products bear a number of symbols used for
labelling the actual product and in installation and user
documentation.
NB! When a text bears this symbol, damage to
equipment or a poor utilisation ratio may result if
instructions are not followed.
CAUTION When a text bears this symbol, it
means that personal injury or serious damage to
the equipment may result if the instructions are
not followed.
!
1
1
2
2
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A A
B B
C C
D D
Date
Status
Description
Project
Stocknumber
Drawn
Approved
Projection Scale
Replaces: Replaced by:
24.03.2009 leif
Etikett sikkerhetsbryter
G2-1A
102732
2:1
102732
Type:
Material:
Colour:
Adhesiv:
Opaque
Glossy vinyl
White
Permanent
35,0
14,0
SAFETY SWITCH

4
1 Functional Description
See page 15 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 (EB1) 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 the same room or via door gaps/
overflow gratings to toilets and wet rooms. The used air is
passed via a duct system back to the unit, gives off its heat
and is expelled 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
the thermostat (F20), which switches off at 60°C. As an
additional safety measure, the thermostat (F10) switches
off at 85°C. Thermostat F10 needs to be reset manually by
pressing the reset button.
You will find the thermostat by opening the unit doors
(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 (when
cooking is finished).
Fig. 1
This is purely a ventilation system and not a
heating system. The home must be heated in the
normal manner.
For user
B ( 1 : 1 )
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6
A A
B B
C C
D D
Date
Status
Description
Project
Stocknumber
Drawn
Approved
Projection Scale
Replaces: Replaced by:
18.02.2009 leif
G2-1A
1:5
351600
B
B ( 1 : 1 )
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A A
B B
C C
D D
Date
Status
Description
Project
Stocknumber
Drawn
Approved
Projection Scale
Replaces: Replaced by:
18.02.2009 leif
G2-1A
1:5
351600
B
B A

5
2 Cleaning/Maintenance
1. Hold the door by its upper edge, which has a recessed
grip.
2. Pull the door to release it from its catch.
3. Change your grip and lift the door off. NB! The door
weighs 10 kg.
For user
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.
Dismantle the fan as follows: Open the doors as instructed.
EC fan: Release the screw at the front of the fan. Pull out the
electric quick-release contact for the motor. The fan can
now be pulled carefully down and out of the unit.
AC fan: Pull the fan out half way. Pull out the contact behind
the fan. The fan can now be pulled out.
Filters:
To preserve a healthy indoor air quality, it is important to
change filters when they are dirty. Dirty filters lead to:
How often the filters need to be changed depends on the
degree of contamination of the air where they are installed.
In general, the filters need to be changed once a year,
preferably in the autumn (after the pollen season). In areas
with a lot of dust and contamination, the filters should be
changed in the spring and autumn. The supply air filter and
extract air filter consist of a compact filter (F7). These are
pushed into place.
It is recommended that you order a filter subscription to
ensure full benefit from the system and the cheapest prices.
When changing the filter, check that the whole unit
is working normally.
Rotor:
As the unit has filters with a high impermeability class
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.
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 give
stainless steel an anti-fingerprint coating must not be used
either.
Before opening the door of the heat recovery
unit or carrying out maintenance on the kitchen
hood: switch off the heat, let the fans continue for three
minutes to remove hot air, disconnect power from the
unit and wait 2 minutes before opening the doors.
!
Increased air resistance in the filter – less air in
the home – risk of bacterial growth in the filter
– in the worst case scenario, the system can be
damaged.
!
Remember that the door is heavy (10 kg) when
lifting it off the unit.
!
1
2
3
Fig. 2
Remember first to remove the safety lock at the
top of the door.
!
safety lock

6
Do not use detergent that is harmful to
aluminium or the environment.
Fig. 3
C ( 1 : 2 )
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A A
B B
C C
D D
Date
Status
Description
Project
Stocknumber
Drawn
Approved
Projection Scale
Replaces: Replaced by:
12.02.2009 leif
351600_dør3
C
C ( 1 : 2 )
1
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A A
B B
C C
D D
Date
Status
Description
Project
Stocknumber
Drawn
Approved
Projection Scale
Replaces: Replaced by:
12.02.2009 leif
351600_dør3
C
C ( 1 : 2 )
1
1
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A A
B B
C C
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Date
Status
Description
Project
Stocknumber
Drawn
Approved
Projection Scale
Replaces: Replaced by:
12.02.2009 leif
351600_dør3
C
123
Mounting of door:
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.

7
Kitchen hood:
Wipe the volume hood with a damp cloth and detergent.
The filter must be cleaned roughly twice a month with normal
use. Dismount the filter (see figs. 4 and 5) and place it in hot
water with washing-up liquid. The filter cassette can 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 filter cassette and
press it up so that it fixes to the snap locks.
The risk of fire increases if the volume hood is not cleaned as
often as specified.
For user
1
1
2
2
3
3
4
4
5
5
6
6
A A
B B
C C
D D
etaD
sutatS
noitpircseD
tcejorP
rebmunkcotS
nwarD
devorppA
noitcejorP elacS
:secalpeR :yb decalpeR
9002.20.81 fiel
006153
123
Fig. 5
1
1
2
2
3
3
4
4
5
5
6
6
A A
B B
C C
D D
etaD
sutatS
noitpircseD
tcejorP
rebmunkcotS
nwarD
devorppA
noitcejorP elacS
:secalpeR :yb decalpeR
9002.20.81 fiel
006153
123
Fig. 4
1
1
2
2
3
3
4
4
5
5
6
6
A A
B B
C C
D D
etaD
sutatS
noitpircseD
tcejorP
rebmunkcotS
nwarD
devorppA
noitcejorP elacS
:secalpeR :yb decalpeR
9002.20.91 fiel
A1-2G
5:1
006153
Fig. 6
To change the fluorescent tube, remove the lamp glass
by pressing the snap locks in the direction of the arrow,
Fig. 6.
The fluorescent tube can now be accessed for
replacement.
International
ILCOS code
Philips
designation
Osram
designation
Light
source FSD-11-G23 PL-S 2-pin DULUX-S
Power 11W 11W 11W
Earth G23 G23 2-pin G23 2-pin

8
3 Maintenance table
Component Interval
Filters Filters should be changed at least once a year. You are advised to change them twice a year. 6-12 months
Before and after the pollen season. Check that the filter seal is completely tight.
Fans Fans should be cleaned at least once a year to maintain fan efficiency. 12 months
Heat exchanger Check that the surfaces are clean. Check that the sealing strips lie in against the heat exchanger. 12 months
Make sure that rotor driving belt is in good condition and well adjusted. 12 months
Kitchen hood Wash the grease filter. Check that the damper is clean and closes fully. 2 weeks
Seals Check that the seals in the unit are intact. 12 months
Valves To be cleaned at least once a year. 12 months
Air intake Check that no leaves and other items are caught in the grille. 12 months
Roof cowl If the unit has a roof cowl, this must be checked for leaves and the like. 12 months
Also check that the drain slots are open.
Ducts Check that the ducts are clean. 10 years
For user

9
4 Troubleshooting
For user
In the case of a power cut, the unit will automat-
ically return to normal operation (user's settings)
when starting up again.
For other types of fault which close down the
control panel/manual terminal,see separate in-
structions for the automatic control system.
If none of this helps, please contact your sup-
plier for service. Please state the model desig-
nation and serial number (on the rating plate
inside the unit/open door).
Type of fault: Remedial action:
Cold draughts Check which supply temperature has been selected. See operating panel.
Check that the rotor is rotating.
Check that heating comes on.
Needs new extract filter.
Fans not working 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.
Low air volume Check the speed the unit is set to.
Check that the filters fit tightly.
Check the intake grille.
The unit has a safety switch which cuts off
power when the door is removed.

10
5 Installation/Preliminaries
See separate documentation for installation of ducts, valves,
etc.
5.1 Inspection/Maintenance
The unit must be installed with space for service and
maintenance such as filter replacement and cleaning the
fans and recovery system.
The control cable with plug for automatic control on top of
the unit must be easily accessible.
5.2 Space Required
Type A B C
K2 R 335 mm 2 x 2 mm 215-380 mm
A: Space in front of unit
B: Space at side of unit
C: Space above unit
These are minimum requirements and only take service
needs into account. National statutory requirements for
electrical safety may deviate from this. Check which rules
apply in your country.
5.3 Location requirements
The unit has been designed for location in the kitchen over
the cooker as it contains an integrated kitchen hood. The
unit is available in left or right versions
(exhaust air nipple to the left or right), depending on what is
the most favourable in relation to the duct location.
For fitter
The unit is designed for indoor installation.
C=215-380mm
A=335mm
Filter
596mm
B=2mm B=2mm
(filter)
C=215-380mm
A=335mm
Filter
596mm
B=2mm B=2mm
Fig. 7
Cover on top of unit
(optional extra)
70mm
(volume hood) 700mm
(unit)
845mm
INSTALLATION INSTRUCTIONS

11
5.4 Recommended sound attenuation for
wall-mounting
For wall mounting, the (included) wall bracket fixed to the unit
is used.
The unit must not be placed on a wall with rooms on the
other side which are sensitive to noise. The wall must be
sound-insulated. If necessary, use double plasterboards on
the wall.
Interrupted studs must be used.
For fitter
40 mm
720 mm
min 600 mm
spikerslag
gips
steinull
min 500(650) mm
Recommended 500mm*
*min. req. 650mm for gas cookers
Min. req. 450mm

12
6 Installation of Flexit SPIRIT K2 R
Flexit SPIRIT K2 R is designed for installation in the kitchen
above the cooker, see Fig. 11. The unit is supplied in left and
right-hand versions depending on what suits duct locations
best (Chap. 5.1).
The unit must be wall-hung from a mounting bracket (Fig. 8)
at the top using the enclosed screws. It must also be screwed
to the wall at the bottom edge of the unit. Remove 2 plastic
plugs to access the mounting holes. For secure mounting, it is
necessary to use extra nailing strips (noggins). The location
of these is shown in Fig. 8.
NB! The wall must have good sound insulation, see Chap. 6.4.
The wall must be completely flat behind the ventilation unit.
If the kitchen hood area is tiled, a suitable liner plate must be
mounted behind the unit. The distance between the bottom
of the grease filter and the cooker should be at least 50 cm
for electric cookers and 65 cm for gas cookers. For the
external dimensions of the unit, see the dimensioned drawing
in Chap. 5.1.
6.1 Installing the volume hood
For fitter
A ( 1 : 1 )
A
1
2
3
3
1
2
Fig. 9
1. Mount the two sides.
2. Attach the two angles.
3. Fix the glass profile.
Fig. 10
Fig. 11
596 mm
B=2mm B=2mm
fixing, top edge
40 mm
720 mm
min 600 mm
spikerslag
gips
steinull
min 500(650) mm
Fig. 8
fixing lower edge
40 mm
720 mm
min 600 mm
spikerslag
gips
steinull
min 500(650) mm
Recommended
500mm*
*min. req. 650mm for gas cookers
Min. req. 450mm
gypsum
studs
rockwool

13
7.3 Automatic Control
The control pack is included in the unit package. The
low-voltage cable must be laid between the unit and the
switch unit. See separate manual for automatic control
included in pack.
7.4 External components
See wiring diagram enclosed with unit.
7 Connection of unit and electrical
work
7.1 Connection of unit
• Ensure that the ducts arrive at the right muff coupling. See
the marking on the unit (top/bottom and behind door).
The symbols are explained on page 3 and the location is
shown in the dimensioned drawing in Chap. 5.
• Pull the duct insulation well up to the unit.
• To avoid condensation, it is very important for the outdoor
air duct and the exhaust air duct to have insulation and a
plastic muff pulled right down to the unit.
NB! Use tape to seal the plastic sleeve to the unit
but do not compress the insulation.
• Lay the outdoor air duct with a slight incline towards the
outdoor air cap so that any water that enters drains out
again.
• If there is a short distance between the unit and the
exhaust point, sound insulation must be installed to ensure
that the requirements for the outdoor sound level are met.
• Ducts must have good sound insulation, particularly above
the unit.
7.2 Electrical work
The unit is suppied with a 1.8 m cable with plug.
The cable leaves the top of the unit and is connected to a
230V 50 Hz single-phase earthed power point located within
a convenient distance. The plug must be used as a service
switch.
NB! Make sure the power point for the unit is not boxed in.
See Chap. 13 for fuse sizes.
A low-voltage cable (with connector) leaves the unit for
use on the control panel. It is important to retain easy
access to this plug - in case of any fault or when replac-
ing the unit.
For fitter
The unit must be installed with a separate earth
leakage circuit breaker.
The low-voltage cable must be laid minimum
30 cm from the 230 V cable and in the case of
chased mounting be laid in 20 mm electrical
piping.
All electrical work must be carried out by au-
thorised personnel. 1
2
Service

14
8 Sizes/Physical Dimensions
8.1 Dimensioned sketch Flexit SPIRIT K2 R
For fitter
(Shown as right-hand model)(Shown as left-hand model)
514
227
371
84
129
229
514
227
371
84
129
229

15
9 General Drawings and System
Drawings
General Diagram (Rotary Wheel-type Heat
Exchanger)
1 (FI2) Extract filter F 7
2 (FI1) Supply air filter F 7
3 (EB1) Heating element
4 (F10-20) Overheating thermostat (heating) (Reset)
5 (M1) Supply air fan
6 (M2) Extract air fan
7 (HR-R) Rotary wheel-type heat exchanger
8 (M4) Rotor motor
9 Control unit
10 Kitchen hood
11 Adjustment switch
12 Damper adjustment
System drawing (electric battery)
B1 Supply air temperature sensor
EB1 Heating element
F10 Overheating thermostat, manual reset
F20 Overheating thermostat, automatic reset
FI1 Supply air filter
FI2 Extract air filter
M1 Supply air fan
M2 Extract air fan
HR-R Rotary wheel-type heat exchanger
M4 Rotor motor
K Kitchen hood
DA4 Damper
DA4
K
FI1
M1 M2
EB1
F10
F20
M4
FI2
B1
HR-R
Outdoor Supply Extract Exhaust
 air air air air
Outdoor Supply Extract Exhaust
air air air air
For fitter
(Shown as left-hand model. The right-hand version is a mirror image.)
6
11
2
7
3
8
9
5
1
10
12
4

16
300
80
0
100
200
300
Pa
m
3/h
200
0 100
400
W
0
20
40
60
040 80
l/s
60
20
230V
150V
190V
105V
85V
120V
170V
230V
150V
120V
85V
190V
170V
105V
60V 60dB(A) 65dB(A) 70dB(A)
60V
55dB(A)
50dB(A)
10 Capacity and sound data
10.1 Capacity diagram, sound data, specifications - K2 R AC
Supply air side (with F7 filter)
Data for supply air is measured in accordance with ISO 5136,
"In-duct method".
Radiated noise is measured in accordance with ISO 9614-2.
Bruel & Kjær measuring equipment, type 2260.
Air capacity at various capacity settings in Volt.
Supply air fan power consumption at various capacity settings.
Sound power level LwA, cf. correction table.
Sound data is given at sound power level LwA in the capacity diagrams
and is corrected with the table below for the various octave bands.
Radiated noise produces Lw in the various octave bands and total
LwA. This is read directly from the supply air table.
Correction factor for
Hz 63 125 250 500 1000 2000 4000 8000 LwA
Supply air 3 2 -2 -5 -5 -6 -13 -29
Extract air 18 14 1 -12 -14 -28 -37 -43
Radiated -46 -39 -29 -36 -40 -44 -54 -58 -33,5
Extract air side (with F7 filter)
Power consumption in Watt
Contact resistance (Pa)
Air flow rate, m3/h - Pressure correction factor
0
40 80
l/s
60
20
W
0
20
40
60
80
0
100
200
300
400
Pa
230V
150V
190V
85V
60V
170V
230V
150V
120V
85V
190V
170V
105V
60V
60dB(A)
64dB(A)
55dB(A)
45dB(A)50dB(A)
120V
105V
m3/h
200
0 300
100
For fitter
Power consumption in Watt
Contact resistance (Pa)
Air flow rate, m3/h - Pressure correction factor
Yellow field: SFP < 1.0 per fan
Yellow field: SFP < 1.0 per fan

17
10.2 Capacity diagram, sound data, specifications - K2 R EC
For fitter
0
100
200
300
Pa
m
3
/h
200
0 300
100
400
040 80
l/s
60
20
W
0
20
40
60
80
40%
80%
60%
100%
100%
60%
80%
40% 65dB(A)70dB(A)
60dB(A)
55dB(A)
Supply air side (with F7 filter)
Data for supply air is measured in accordance with ISO 5136,
"In-duct method".
Radiated noise is measured in accordance with ISO 9614-2.
Bruel & Kjær measuring equipment, type 2260.
Air capacity at various capacity settings in %
Supply air fan power consumption at various capacity settings.
Sound power level LwA, cf. correction table.
Sound data is given at sound power level LwA in the capacity diagrams
and is corrected with the table below for the various octave bands.
Radiated noise produces Lw in the various octave bands and total
LwA. This is read directly from the supply air table.
Correction factor for Lw
Hz 63 125 250 500 1000 2000 4000 8000 LwA
Supply air 3 2 -2 -5 -5 -6 -13 -29
Extract air 18 14 1 -12 -14 -28 -37 -43
Radiated -41 -35 -33 -39 -40 -49 -50 -60 -33,5
Extract air side (with F7 filter)
Power consumption in Watt
Contact resistance (Pa)
Air flow rate, m3/h - Pressure correction factor
0
100
200
300
Pa
m3/h
200
0 300
100
400
0
40 80
l/s
60
20
W
0
20
40
60
80
40%
80%
60%
100%
100%
60%
80%
40% 55dB(A)
60dB(A)63dB(A)
50dB(A)
45dB(A)
Power consumption in Watt
Contact resistance (Pa)
Air flow rate, m3/h - Pressure correction factor
Yellow field: SFP < 1.0 per fan
Yellow field: SFP < 1.0 per fan

18
11 Technical data
11.1 Technical data Flexit SPIRIT K2 R
AC EC
Rated voltage 230 V/50 Hz 230 V/50 Hz
Fuse size 10 A 10 A
Rated current, total 3.85 A 4.0 A
Rated power, total 900 W 930 W
Rated power, electric batteries 700 W 700 W
Output fans 2 x 60 W 2 x 76 W
Fan type B-wheel F-wheel
Fan motor control Transformer 0-10 V
Max. fan speed 2,500 RPM 1,970 RPM
Automatic control standard CS 50 CS 50
Filter type (SUP/EXTR) F7/F7 F7/F7
SUP filter dimensions (WxHxD) 130x335x50 mm 130x335x50 mm
EXTR filter dimensions (WxHxD) 130x335x50 mm 130x335x50 mm
Weight 56 kg 56 kg
Duct connection Dia. 125 mm (sleeve) Dia. 125 mm (sleeve)
Duct connection kitchen fan
Height 700 mm* 700 mm*
Width 598 mm 598 mm
Depth 510 mm** 510 mm**
* without volume hood and duct connection, see Chap. 5
** see Chap. 5
For fitter

19
For fitter
12 Adjusting the Kitchen Hood
If basic ventilation is desired via the kitchen hood, the
damper from the factory must be replaced. Replace it with a
damper with adjustment options. This is not supplied with the
unit.
12.1 Forced Ventilation
The unit has 4 forced ventilation options:
1. (Switch on front of unit.) This gives a half-open damper
which will increase the air volume passing through the hood.
2. Turn the knob to position 2. This gives a fully open
damper which will allow even more air through the kitchen
hood.
3. Turn the knob to position 3. This will give a fully-open
damper which will allow even more air through the kitchen
hood, in that the fans go to speed 3.
4. The air volume through the unit can also be increased by
setting the fans to speed 3 via the control panel (external
panel). See separate instructions.
The damper needs closing again manually. There is no timer
in the damper. Closed in position O.
The air entering the unit through the kitchen hood does not
pass through the rotary heat exchanger (by-pass).
B ( 1 : 1 )
1
1
2
2
3
3
4
4
5
5
6
6
A A
B B
C C
D D
Date
Status
Description
Project
Stocknumber
Drawn
Approved
Projection Scale
Replaces: Replaced by:
18.02.2009 leif
G2-1A
1:5
351600
B

20
13 Adjustment Curves
13.1 Forced ventilation Flexit SPIRIT K2 R
Max. air volume through kitchen hood in case of forced air volume
For fitter
Measurements have been taken at 2/3 pressure in the
extract air duct and 1/3 pressure in the exhaust air duct
before opening the damper.