Owner`s manual

Now that you have a basic understanding of how a Program roasts coffee, you can begin to create and

modify your own Programs. This section will help you understand the parameters of programming the

KN-8828P-2K.

This chart visually shows the eight Program Segments and the temperature range of each available

for programming. You will notice that the chart resembles a staircase, with the steps rising in temperature

as you progress along the roasting process. Here are some hints, tips, features, and facts that will help you

create successful Programs:

• Generally speaking, coffee should not be allowed to cool off during the roast. Chemical changes are

taking place in the coffee beans, and if they lose too much heat during the roast the reaction can be

harmed and the taste of the coffee will be negatively affected. It is ﬁne to maintain a temperature level,

but dropping the beans’ temperature should generally be avoided.

• A program is made up of up to eight

Segments. Each Segment will have a setting

for time, temperature, and fan speed.

• The smallest amount of time in a Program

is 10:00, and the greatest is 22:00. A Program

must have at least 4 programmed Segments

(Example: 3 segments at 3:00 each, plus one

additional Segment of at least 1:00).

• You do not need to use all eight segments

when roasting. A Segment can be eliminated

from the Program by entering “0:01” for its

time.

• If the user desires a temperature to be held

for more than three minutes (each Segment’s

maximum programmed time) consecutive

segments can be programmed for the same

temperature. For example, Segments 3 and

4 can both be programmed for “300” and 3

minutes each, totaling 6 minutes, to hold the

temperature at that level once it is reached.

• In any given Segment, or portion of a

Segment, once the programmed temperature

is achieved, the KN-8828P-2K will cycle

the heating element to hold that temperature until the time for that Segment expires.

• If the temperature for a Segment is not achieved during its programmed time, the program will still

move on to the next segment. During this time the heating element will stay on until the temperature

programmed for the current Segment is reached. This can be used for a more rapid temperature rise.

• It is not important for the roaster to reach a programmed temperature in a Segment. Setting a high,

unattainable temperature in a Segment is a way to force the heating element to stay on during that time

period.

• Because of the amount of time it takes for the KN-8828P-2K to increase the temperature in the roasting

chamber, drastic changes should be avoided unless a Program is created that gives sufﬁcient time for

the rise in temperature before time runs out for the Program. When creating Programs, if you take into

account that the KN-8828P-2K can change temperature at a rate of between 0.2 F/sec - 0.5 F/sec, you can

create a more accurate and controlled Program.

Understanding Programs and Segments - KN-8828P-2K