INVENTUM KZ915GD Coffee Maker Instruction Manual

: June 5, 2024
: INVENTUM

Table of Contents

safety instructions
Product description
Prior to first use
Setting the clock
Making coffee with coffee beans
Making coffee with an extra fine grind
Timer function
Switching off
Cleaning and maintenance
De-scaling
Breakdowns and solutions
Documents / Resources

GRIND & BREW COFFEEMACHINE • GRIND & BREW KAFFEEMASCHINE
grind & brew koffiezetter
KZ915GD

INVENTUM KZ915GD Coffee Maker

Instruction manual

safety instructions

Carefully read the instruction manual in full prior to using the appliance and store the manual in a safe place for future reference.
Only use this appliance for the purposes described in the instruction manual.

Attention! Avoid contact with hot surfaces and/or steam!
Attention! The grinding system in the coffee bean holder is very sharp. Avoid touching it.

Do not remove parts from the appliance while making coffee. This could result in personal injury and/or damage to the appliance.
The appliance must be connected to an alternating current supply, via an earthed wall socket, with a mains voltage that matches the information given on the information plate of the appliance.
Never bend the power cord sharply or allow it to run across hot parts.
Fully unwind the cord to prevent it from overheating.
Never place the appliance near appliances that give off heat, such as ovens, gas cookers, hotplates, etc. Keep the appliance away from walls or other objects that could catch flame, such as curtains, towels (cotton or paper), etc.
Always make sure the appliance is placed on a stable, flat, and heat resistant surface and is only used indoors.
Do not leave the appliance unattended when it is in operation.
Do not use the appliance if the plug, cord or appliance is damaged, if the appliance no longer functions properly, or if it has fallen or become damaged in any other way. If this is the case, consult the retailer or our maintenance service.
If the cord of the appliance is damaged, it should be replaced by the manufacturer, his customer service, or a similarly qualified person in order to prevent hazardous situations.
Do not pull the cord and/or appliance to remove the plug from the wall socket.
Never touch the appliance with wet or damp hands.
Keep the appliance out of reach of children. Children do not see the dangers associated with handling electrical appliances. Therefore, never allow children to operate electrical appliances without supervision. Keep the appliance and cord out of reach of children younger than 8 years of age.
The appliance can be used by children of 8 years and older and by persons with limited physical, sensory or mental capacities or lack of experience or knowledge, provided they use the appliance under supervision or have been instructed about its safe use and understand the hazards it may involve.
Children must not play with the appliance.
The appliance must not be cleaned or maintained by children unless they are over 8 years of age and this is done under supervision.
If the appliance is being cleaned or is not being used, fully switch off the appliance and remove the plug from the socket.
Always make sure the appliance is switched off and cooled down and that the plug has been removed from the socket before you remove parts from the appliance.
If the appliance does not function after it has been switched on, it is possible that the fuse or earth leakage circuit breaker has been activated in the electrical distribution box. The group may be overloaded or an earth leakage current may have occurred.
In case of a breakdown, never make repairs yourself; a tripped safety device in the appliance could indicate a defect that cannot be remedied by removing or replacing this safety device. Only original parts should be used.
The water reservoir deforms when using hot water, therefore only fill it with cold water.
Always use the coffee machine with a closed filter cover.
Do not switch on the appliance when the water reservoir is empty.
Never use a cracked glass jug or a glass jug with a loose or damaged handle.
Handle the glass part carefully when using and cleaning.
Do not place the glass jug containing hot liquid on a hot or cold surface.
Do not use the glass jug for other purposes than described here.
Do not place an empty glass jug back on the hot plate.
Never submerge the appliance, the cord or the plug in water.
This appliance is intended for household and similar use, such as:
– in staff kitchens, shops, offices, and other work environments;
– by guests in hotels, motels, and other residential environments;
– in Bed&Breakfast type environments;
– farms.
If the appliance is not used as intended, no compensation can be claimed in case of defects or accidents and the warranty will be invalidated.

If you decide to stop using the appliance due to a defect, we recommend cutting the cord after removing the plug from the wall socket. Small household appliances do not belong in the dustbin. Take the appliance to the waste processing department concerned in your municipality.

Product description

Cover bean holder
Coffee bean holder
Rotary knob fine/coarse grind
Operating panel
Filter holder
Filter outlet with drip stop
Glass jug
Hot plate
Release button filter holder
Water reservoir
Gauge glass
Measuring spoon

Prior to first use

Before using the coffee machine for the first time, proceed as follows: Carefully unpack your coffee machine and remove all packaging material and possible promotional stickers. Keep the packaging (plastic bags and cardboard) out of reach of children.
After unpacking the appliance, carefully check it for external damage that may have occurred during transport.
Place the coffee machine on a flat, stable and heat-resistant surface. Check that the voltage stated on the information plate matches the main voltage used in your region.
It is best to clean the interior of the new coffee machine prior to using it for the first time. Clean the appliance as described in section cleaning and maintenance. Then fill the water reservoir with cold water up to the 12 mark and allow the appliance to make two or three runs without coffee.

Setting the clock

Insert the plugin and earthed the socket. When switching on the appliance the time display flashes on the display, indicating the time 12:00. If you do not set the time, the clock will continue to flash when switching on the appliance, and you will not be able to use the timer function of the appliance.
Press the button to set the correct hour (the clock has a 24-hour format).
Press the button to set the correct number of minutes.
Once you have set the time, the clock will stop flashing. When the appliance is disconnected from the mains, the clock must be set again.

Making coffee with coffee beans

Fold up the cover of the water reservoir and – using the glass jug – fill it with cold drinking water to the required level (the lines indicate the number of cups, 2 to 12). Do not fill the reservoir above the 12 mark, otherwise, the water reservoir may overflow. Close the cover of the reservoir.
Press the release button on the side of the appliance to open the filter holder. Make sure the filter outlet with drip stop is placed properly in the holder. Place the permanent coffee filter or a paper coffee filter (size 1 x 4) of which the edges have been folded back in the filter holder. This prevents the filter bag from folding inwards and closing. Then close the filter holder until it snaps closed.
Remove the cover from the coffee bean holder and fill the holder with coffee beans. Place the cover back on the coffee bean holder. We recommend adding not too many coffee beans, to prevent the unused beans from getting damp in the coffee bean holder. A maximum of 200 grams of coffee beans will fit in the holder.
Warning: Only fill the coffee bean holder with coffee beans and make sure that no foreign objects end up in the holder. Also do not use unroasted or damp coffee beans. These might damage the appliance.
Place the glass jug on the hot plate.
Insert the plugin and earthed wall socket and set the clock. Check that the grinding function is switched on, the indicator light at the button does not light up in that case. If the indicator light does light up, press the button once to switch on the grinding function.
Select the number of cups of coffee for which coffee beans should be ground. Press buttons 2-12 (repeatedly) to set the required number of cups of coffee, the available options are 2, 4, 6, 8, 10 or 12 cups of coffee. Adjust this number to the amount of water poured in the water reservoir. The set number of cups of coffee is shown on the display. If you do not set the number of cups of coffee yourself, the appliance will automatically select 12 cups of coffee.
Use the rotary knob on top of the coffee machine to select coarse or fine ground coffee. Turn the knob to the large coffee bean for coarse grind, or to the small coffee bean for a fine grind.
Select the required coffee strength by repeatedly pressing the button . You can choose between 3 options: mild, medium, and strong. The set coffee strength is shown on the display: 1 bean for mild, 2 beans for medium, and 3 beans for strong.
Start the coffee machine by pressing the button. After approximately 3 seconds, the appliance starts grinding the coffee beans, and after about 3 seconds after that, the appliance starts making coffee. While making coffee, a coffee cup symbol is shown on the display, once the filter process has been completed this symbol disappears and 3 beeps will sound.
Once the filter process has been completed, remove the glass jug from the hot plate and pour out the coffee. After making coffee, the hot plate will keep the coffee warm for 35 minutes, after which the appliance automatically goes to the standby position. 3 beep sounds can be heard and after 1 minute the display switches off. 1
Coffee tastes best immediately after it has been made, so do not wait too long before serving. The glass jug can immediately be placed back on the hot plate or you can pour the coffee into a thermos jug.

Making coffee with an extra fine grind

Fold up the cover of the water reservoir and – using the glass jug – fill it with cold drinking water to the required level (the lines indicate the number of cups, 2 to 12). Do not fill the reservoir above the 12 mark, otherwise, the water reservoir may overflow. Close the cover of the reservoir.
Press the release button on the side of the appliance to open the filter holder. Make sure the filter outlet with drip stop is placed properly in the holder. Place the permanent coffee filter or a paper coffee filter (size 1 x 4) of which the edges have been folded back in the filter holder. This prevents the filter bag from folding inwards and closing.
Fill the coffee filter with the required amount of coffee (extra fine grind) and softly shake it until the coffee is distributed evenly. According to your taste, you can use 1 level measuring spoon per cup of coffee. This is approximately 5-7 grams of coffee per cup. Then close the filter holder until it snaps closed.
Place the glass jug on the hot plate.
Insert the plugin and earthed wall socket and set the clock. Check that the grinding function is switched off, if so, the indicator light at the button lights up. If the indicator light does not light up, press the button once to switch off the grinding function.
When making coffee with an extra-fine grind, there is no need to set the number of cups of coffee with buttons 2-12. The appliance will make coffee until the water reservoir is empty.
Select the required coffee strength by repeatedly pressing the button . You can choose between 3 options: mild, medium, and strong. The set coffee strength is shown on the display: 1 bean for mild, 2 beans for medium, and 3 beans for strong.
Start the coffee machine by pressing the button. The machine is operational and the coffee will be made. While making coffee, a coffee cup symbol is shown on the display, once the filter process has been completed this symbol disappears and 3 beeps will sound.
Once the filter process has been completed, remove the glass jug from the hot plate and pour out the coffee. After making coffee, the hot plate will keep the coffee warm for 35 minutes, after which the appliance automatically goes to the standby position. 3 beep sounds can be heard and after 1 minute the display switches off.
Coffee tastes best immediately after it has been made, so do not wait too long before serving. The glass jug can immediately be placed back on the hot plate or you can pour the coffee into a thermos jug.

Timer function

To have the coffee machine brew coffee automatically at the required time, you can set the timer function.

Prepare the coffee-making process by following steps 1 to 8 from the section making coffee with coffee beans and 1 to 7 from the section making coffee with an extra-fine grind.
Check that the time is set correctly. If necessary, you can adjust the time, as shown in the section setting the clock.
Then hold the button for about 2-3 seconds to set the timer function. The clock starts to flash.
Set the required start time. Press the button to set the correct hour (the clock has a 24-hour format) and press the button to set the correct number of minutes.
Press the button to confirm the start time and switch on the timer function. When the timer function is switched on, a clock symbol appears on the display and the indicator led at button lights up. The coffee machine will now make coffee at the time set by you. After switching on the timer function, the display automatically switches to the standby position if it is not used within a period of 1 minute. Any set indicator lights continue to light up. The display will be activated again once the set time has been reached.

If you want to switch off the timer function after setting it, press the button once more. The indicator led switches off, indicating that the timer function is switched off. If you press the button once more, the timer function is switched back to the already set time. If you want to adjust the time, hold down the button for 2-3 seconds, as described above.

Switching off

When the appliance is switched on and is not being used for 1 minute, the display automatically switches to the standby position. Any set indicator lights continue to light up. After 35 minutes of keeping warm, the appliance also switches to the standby position automatically.
Press the button to activate the appliance again, but do note that in this way you will also immediately adjust the coffee strength setting.
Attention! If you want to switch off the appliance completely, you must remove the plug from the socket. The hot plate cools down slowly after switching off and could remain hot for some time.

Do not forget to remove the paper filter bag and throw it away or to remove the permanent filter and rinse it clean. Swing open the filter holder and remove the filter. Throw away the filter bag. When using the permanent filter, empty it, clean it and use it again.
Allow the appliance to cool down properly first, before removing the filter.

Attention: This coffee machine comes with a drip stop. This means that the flow of coffee is stopped immediately when the glass jug is removed. The filter holder is closed off, as a result of which the flow of coffee is stopped. Be sure to place back the glass jug as quickly as possible to prevent the filter from overflowing. When making coffee, do not touch the cover to prevent burns due to hot steam.

Cleaning and maintenance

Regularly clean the coffee machine. This is not only beneficial for the life span of the appliance, it also ensures optimum use of the appliance and, of course, good tasting coffee.

Cleaning should involve the following:

Prior to cleaning, always check that the coffee machine is switched off, and cooled down and that the plug has been removed from the socket.
Remove all separate components of the appliance and clean them after each use in hot water and a mild washing-up liquid.
Then rinse thoroughly with hot water and wipe dry.
Regularly clean the outside of the appliance and the hot plate with a slightly damp cloth and then wipe it dry with a dry cloth.
Clean the interior of the bean reservoir in the same way.
Attention! The grinding system in the coffee bean holder is very sharp. Avoid touching it.
Place back all components correctly in the appliance.

Attention:

Never use aggressive and/or abrasive cleaning agents when cleaning.
Never submerge the appliance, cord or plug in water.

De-scaling

Regularly de-scale your coffee machine. The de-scaling intervals depend on the hardness of the mains water and the frequency at which the coffee machine is being used. We recommend de-scaling the coffee machine approximately after every 60 times of making coffee. Due to scaling, the heating element can become obstructed. This causes overheating, as a result of which the coffee machine is switched off automatically as a safety precaution and will no longer function. The coffee machine will have to be repaired. You can de-scale the coffee machine with a special de-scaling agent for coffee machine or with kitchen-grade vinegar. If you use a special de-scaling agent for coffee machines, you must observe the instructions on the packaging of this agent.

When using kitchen-grade vinegar, proceed as follows:

Remove the plug from the socket, allow the appliance to cool down properly, and remove all separate components.
To remove any remaining water, hold the appliance upside down above the sink.
Place all separate components back in the appliance and place an empty filter bag in the filter holder. Fill the water reservoir with clean, cold water and cold kitchen-grade vinegar up to the 12 mark. The water and kitchen-grade vinegar ratio should be 4:1.
Insert the plugin and earthed wall socket and set the clock. Check that the grinding function is switched off, if so, the indicator light at the button lights up. If the indicator light does not light up, press the button once to switch off the grinding function.
Press the button to start the de-scaling process.
The de-scaling process has been completed when the water reservoir and coffee filter are empty. Empty the glass jug and remove the filter bag from the filter holder, once the appliance has cooled down. Repeat steps 1 and 2 to allow any remaining water to run out of the water reservoir and place all separate components back in the appliance.
After de-scaling, allow a full reservoir of cold water to flow through the appliance at least 3 times, to remove all de-scaling liquid and vinegar residues and thus prevent a sour taste in the coffee.

Attention! If the coffee machine has not been used for some time, e.g. due to vacation, it is recommended to remove and clean all separate components. Then place the cleaned separate components back in their place and allow the coffee machine to make one run with clean water. In this way, you will prevent a possible foreign taste.

Breakdowns and solutions

In case of a breakdown, you must:

switch off the appliance, if possible;
remove the plug from the socket;
apply for a repair;
some small problems can be resolved by the user himself, using the instructions in the table below. Check all points in the table in sequence, before contacting the maintenance or customer service.

Breakdown (code)	Cause	What to do
The appliance is not working.	The plug is not properly i n the socket.	Make

sure the plug is placed properly in the wall socket.
The appliance does not start at the required time.| The current time is not set correctly.| Check the set time and correct it if necessary.
The timer is not set correctly.| Check the set time and correct it if necessary.
The coffee does not enter the glass jug.| The glass jug is not placed correctly under the drip stop.| Make sure the glass jug is placed correctly and neatly centered under the drip stop.
An unsuitable glass jug is being used.| Only use the provided glass jug.
The cover is not placed properly on the glass jug.| Make sure the cover is placed properly on the glass jug.
The filter process takes a very long time.| The appliance is severely calcified.| Clean the appliance as indicated in section de-scaling.
A lot of steam is released when making coffee.| The appliance is severely calcified.| Clean the appliance as indicated in section de-scaling.
The coffee does not taste good.| The amount of coffee powder is too high or too low.| Adjust the amount of coffee powder according to your taste.
The coffee strength is set too high or too low.| Adjust the coffee strength according to your taste.
The drinking water used is too high in calcium.| Use different drinking water.
The appliance is severely contaminated.| Clean the appliance as indicated in section cleaning and maintenance.
The appliance has not been properly rinsed after de-scaling.| Clean the appliance several times, as indicated in the section prior to first use.
The coffee used has been stored in a warm, damp location, making it unfit for use.| Use fresh coffee and store unused coffee in a cool and dry location. Properly close an opened package and store it in a refrigerator to keep the coffee fresh.
Coffee is escaping from the side of the appliance during the filter process.| The paper coffee filter used has folded inwards or tilted.| Press the button@ to interrupt the filter process. Remove the plug from the socket and allow the appliance to cool down. Then remove the paper coffee filter, clean the appliance, and set the appliance once more. Do make sure you place the coffee filter in the appliance in the correct way.
There is an oily film on freshly made coffee.| Coffee beans contain fats and oils that can accumulate in the appliance during the grinding process. When used often,
the oily film on the coffee may increase.| Regularly clean the appliance and, if necessary, use a type of coffee bean with lower oil content.

Attention: Never repair a fault yourself. When the solution is not mentioned in the table above, please contact the maintenance department or customer service department.

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KZ915GD /01.0621
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