Vallox Capto KTC A User manual

Manual
Document
D3903
Valid from
1.1.2019
Updated
30.7.2019
MANUAL
Model
Vallox Capto KTCA
Type
279842
The Vallox Capto KTC A cooker hood is designed to be used above
the cooker top, or as a general extraction valve in the kitchen.
The hood has a timer damper and a guard function.

2
MANUAL
VENTILATION CONTROL
In ventilation systems that allow the resident to boost extraction
during cooking, this is done using the adjustment damper of the
hood.
The KTC A cooker hood excludes a fire damper.
USING THE COOKER HOOD
The cooker hood has a sliding glass that can be pulled out of
the cooker hood. It is recommended that the sliding glass be
pushed or pulled from the aluminum strip on its front edge.
Pull the glass out of the cooker hood for maximal extraction
capacity.
 Position of the damper
In normal circumstances, the damper must be closed
(the signal light is o), which boosts the extract air flow from
other premises.
The damper must be open (the signal light is turned on)
when the user wants to increase the extract air flow from
the cooker hood e.g.
• when the cooker top or the oven is used for cooking or
• the load in the kitchen is exceptional due to the use
of strong detergents, presence of a large number of
people, or similar.
Touch the button on the damper to open it and to start the
timer. The damper will close automatically within 60 minutes.
 Cooker hood light
Turn the light on or o by pressing the light switch. The light
is dimmable. Adjust the brightness by pressing the light
switch when the light is turned o until the brightness is
adequate.
 Settings button
The settings button is roughly 2 cm to the left from the light
switch.
Front panel buttons
The front panel of the cooker hood has three buttons.
PLEASE NOTE!
• Neglecting the cleaning of the grease filter can
cause a fire hazard.
• The outer surfaces of the hood can become hot
when the cooker or the oven is turned on.
• Flaming is forbidden underneath the cooker hood.
• Always follow the instructions provided on
adjusting the eciency of ventilation.
• Enable a sucient supply airflow into the room
if the cooker hood and non-electric devices are
used simultaneously.
Other functions
Guard function
The cooker hood is equipped with a guard function that is
activated when the temperature of the cooker hood exceeds
60°C or after a sudden increase in temperature (> 8°C/min).
In such a case, all signal lights of the cooker hood and the
LED light will flash. If this kind of alarm is noticed before fire
damage, it can be acknowledged by pressing any of the
cooker hood buttons.
Pre-setting of light brightness
To modify the pre-setting of light brightness:
1. Turn on the light, close the damper.
2. Press the settings button for roughly 3 seconds until the
setting mode signal light starts to flash.
3. Adjust the brightness of the light by pressing the light
button until the brightness is adequate.
4. To save the setting, press the settings button for roughly
3 seconds until the setting mode signal light stops to
flash.
To read about the other functions of the settings button, go
to our website, www.vallox.com.
WARNING!
The unit is not intended for use by children under 8 or
by persons with reduced sensory, physical or mental
capabilities, or whose lack of knowledge and experience
do not ensure safe operation of the unit. Such persons
can use the unit under supervision, or by following the
instructions of someone who is responsible for their
safety. Do not let children play with the unit or to clean
or maintain it without supervision.

3© Vallox Oy - All rights reserved
MANUAL
MAINTENANCE
Keep the cooker hood clean. Wipe outer surfaces regularly
with water containing a small amount of a mild detergent.
Clean o any grease stains immediately. Do not use abrasive
or corrosive detergents or tools.
Keep the grease filter clean to ensure an adequate extract air
flow. The grease filter must be washed with warm water and
detergent at least 1-2 times a month.
Light
The cooker hood has a long-lasting LED lighting module. If
the light is not working, contact a servicing company.
Removing and mounting the grease filter
Removing the filter Mounting the filter
1234
38 mm
5
min. 426mm /
650mm
50mm
20mm
• Pull the locking device of the grease filter towards the
front edge of the cooker hood while pulling the grease
filter downwards until it comes o.
• Wash the grease filter and leave to dry.
• Mount the grease filter back in place. Push the front
edge of the filter into the pins on the cooker hood, and
click the rear edge in place.
NOTE! Ensure that the locking device points
downwards.
Figure 5.
Location of the L strip when the lowest hood mounting
height is used.
PLEASE NOTE!
The minimum distance of the bottom edge of the hood
to an electric cooker is 426 mm and to a gas cooker
650 mm.
PLEASE NOTE!
• The cooker hood must not be connected to a flue that
is used for removing combustion gases (e.g. from a
wood- or gas-burning fireplace, cooker, or stove).
• Regulations on leading extraction air outdoors must
be observed.
INSTALLATION
In the example, the bottom of the sides and the rear of the
cooker hood are level with the bottom of the top cabinets
(see figures 1-2). In this case, a specially made cover panel
is needed to hide the hood. The height of the cover panel is
roughly 210 mm.
The hood can also be installed higher, even so that it touches
the frame of the spice cabinet. In this case, rear corners need
to be sawn o from the spice cabinet frame (see figure 3). In
this mounting method, the height of the hood cover panel is
100 mm.
When the lowest possible mounting height is used, the
bottom edge of the sliding glass, when pushed inside the
hood, is level with the bottom of the top cabinet frames
(see figure 4). The L strip is mounted on the wall as shown
in figure 5. In this mounting method, the height of the hood
cover panel is roughly 248 mm.
Figure 1.
Remove the spice cabinet. Mount the L strip on the wall so
that it is level.
The L strip fully covers the gap between the hood and the
wall and also makes it easier to balance the hood in place
during mounting.
If the top cabinet frames are less than 305 mm deep, the
longer edge of the L strip is mounted on the wall. The
perforations on the lower surface of the L strip can be
covered using white plastic studs.
Figure 2.
Place the hood on top of the L strip so that it is level and
fasten the hood on the top cabinet frames with four screws. It
is vital that the hood is both vertically and horizontally level.
The front panel of the hood must be at the same depth as the
outer surface of the top cabinet doors.
Figure 3.
If the highest possible hood mounting height is used, saw o
diagonal pieces measuring at least 20x50 mm from the spice
cabinet frame.
Figure 4.
The cooker hood when the lowest possible mounting height
is used.
PLEASE NOTE!
• The power outlet used for the cooker hood must
be easy to access.

MANUAL
D3903/30.7.2019
External electrical connection
Measuring and adjusting performance values
Standard ventilation
The volume flow rate of the air inside the cooker hood is measured
with the damper closed and, where required, adjusted based on
the static pressure loss and the performance scheme of the cooker
hood.
• The static pressure loss is measured from the hole in the damper
using the measuring tube found in the accessory bag (see figure).
• Determine the volume flow rate from
the performance scheme based
on the measured pressure and the
number of open holes in the damper.
Adjustment:
• Cover the required number of holes
in the damper with the magnetic
strip that is delivered with the cooker
hood.
dp
Boost ventilation
The volume flow rate of the air inside the cooker hood is measured
with the damper open based on the static pressure loss and the
performance scheme of the cooker
hood.
• Measure the static pressure loss of
the cooker hood. The measuring
point must be located 2 times the
duct diameter above the outlet
collar of the cooker hood (see
figure).
• Determine the volume air flow
based on the measured pressure
and the performance scheme (with the damper open).
2 3 4 5 6 7 8 9 20 30 40 50 60 7010
20
30
40
50
60
70
80
90
200
300
400
10
100
7
4 65
3
45
40
35
30
25
2
45
8
40
35
30
25
Airflow, dm³/s
Static pressure loss Pa
Damper open
Adjustment position
L
pA
, dB(A)
Standard ventilation
(settings 2-8)
dp
Measuring point,
min. 2 x duct diameter
Vallox Oy | Myllykyläntie 9-11 | 32200 LOIMAA | FINLAND | www.vallox.com
Customer Service [phone] | Aftersales [phone]
ALARM
TACHO
GND
0-11V
+ - IN OUTIN OUT
FIRE
ALARM
RS 485
A B GND
N
L
DAMPER 1 2 3
LIGHT
N L
FAN N L
L
External feed based on
the position of the hood
damper. 230VAC/4A
Terminal box on top of the hood
N
LA
L*
DAMP
IN OUT
PE
HOUSE
AUTOMATION
POSITION OF
THE DAMPER
GUARD
FUNCTION
3 POTENTIAL FREE
CONTACT DATA
24VDC/5A
MODE PIEZO
CONTACT DATA:
GUARD FUNCTION:
NORMAL SITUATION = OPEN
ACTIVATED = CLOSED
HOUSE AUTOMATION:
NORMAL SITUATION = OPEN
ERROR SITUATION
(HOOD OR VENTILATION UNIT) = CLOSED
ACTIVATED GUARD FUNCTION = FLASHING
POSITION OF THE DAMPER:
DAMPER CLOSED = CONTACT OPEN
DAMPER OPEN = CONTACT CLOSED
STANDARD VENTILATION
Damper closed
Setting Holes open/
damper
2 2
3 3
4 4
5 5
6 6
7 7
8 8
Measuring tubes that leave at the of top the hood are intended to
be connected to the smoke limiter that is sold as an accessory. If
the assembly does not include a smoke limiter, the tubes are left
unconnected. Separate air flow measurement instructions are
delivered with the smoke limiter.