USA

Upgrading Your Hottop Coffee Roaster

  Over the years there have been four models of Hottop Coffee Roasters with variations in the "P" and "B" models. Even with those changes, the basic design has remained quite constant. This allows Hottop to offer upgrade kits which will give older Hottop Coffee Roasters virtually all the benefits and function of the newer models.
  Before considering an upgrade please be aware that some of the upgrades require disassembling the roaster nearly completely. Before ordering please be sure that you are capable of completing the task.
NOTE: In particular, upgrading to the "K" or to "-2" or to "-2K" from earlier models (non -2 and non K models) is quite involved.

PLEASE, read ALL information on this page as well as the ENTIRE upgrade procedure before ordering!

Please feel free to contact us by E-Mail if you have any questions.

 
~ Important Upgrade Instructions ~

When Upgrading FROM a KN-8828 and KN-8828D models
TO a KN-8828P-2 or a KN-8828B-2K

Specifically, pay attention to step #19a and #19b
Those steps cover important points necessary to allow later
control panels to operate with these two earlier models of machines.

When Installing the following kits in any machine:
UK-100, UK-101, UK-102, UK-103, and UK-104
Use the instructions found HERE.

For all KN-8828B-2K+ kits:
UK-105 - UK-106 - UK-107 - UK-108
Use the installation instructions found HERE.
The PDF owner's/operation manual for these kits is available HERE.

If you do not have the emergency eject function installed in the machine (as evidenced by the "pull knob"
under the main fan on the back cover of the roaster), we highly recommend using kit UK-106 or UK-108.

NOTE: The KN-8828B and KN-8828B-2 control panels are no longer available.
    Those panels have been superseded by the KN-8828B-2K. The temperature sensor for the earlier "B" control panels (the button style sensor) is not compatible with the K-thermocouple sensor which must be used with the B-2K and P-2K control panels.
    If replacing a KN-8828B or KN-8828B-2 control panel you have your choice of replacing just the control panel with a KN-8828P-2 or you may upgrade to the "K" system (KN-8828P-2K or KN-8828B-2).

Please feel free to contact us by E-Mail if you have any questions.

NOTE: When upgrading control systems be sure to download the latest owners manual. There may be differences in the safety and control systems programmed into the control panel of which you are unaware that affect operation.

 
How to Use the Upgrade Matrix
1) Find your current roaster model along the top in the lavender squares. It is important to correctly and accurately identify your model. To do so, please refer to THIS guide.
2) Find the model you wish to convert to along the left in the blue-green squares.
3) Where the row and column converge will indicate if the conversion is possible or recommended, and what parts will be necessary.
Example: To upgrade from a KN-8828B to a KN-8828P-2K you would use the upgrade kit, part "UK-102."
Note: To make the matrix easier to read, we have not used the "KN" text in the model designations.
 
UPGRADE
MATRIX
8828 *1 8828D *1 8828B 8828B-2 8828B-2K 8828P 8828P-2 8828P-2K 8828B-2K+
8828
X X X X X X X X
8828-2 UK-100 X X X X X X X X
8828D P-12b
X X X X X X X
8828D-2 P-12b &
UK-100
UK-100 X X X X X X X
8828B NLA NLA
NLA NLA NLA NLA NLA NLA
8828B-2 NLA NLA UK-100
NLA NLA NLA NLA NLA
8828B-K

P-31 &
P-19b &
UK-103

P-31 &
P-19b &
UK-103
UK-103 X X UK-103 X X X
8828B-2K P-31 &
P-19b &
UK-101
P-31 &
P-19b &
UK-101
UK-101 UK-103
UK-101 UK-103 P-12e X
8828P P-12kb P-12kb P-12d X X
X X X
8828P-2 P-12kb &
UK-100
P-12kb &
UK-100
P-12d &
UK-100
P12-d X UK-100
X X
8828P-K X X UK-104 *1 X X UK-104 X X X
8828P-2K X X UK-102 *1 UK-104 *1 P-12f UK-102 *1 UK-104 *1
X
8828B-K+ UK-107 UK-107 UK-105 X X UK-105 X X X
8828B-2K+ UK-108 UK-108 UK-106 UK-105 UK-105 UK-106 UK-105 UK-105
 

COLOR CODING
The color coding in the above matrix only represents the relative difficulty of each upgrade. Be aware that these "ratings" are of a general nature. You are the best judge as to whether you possess the skills and experience to successfully complete them.

  MOST DIFFICULT - Requires removing all major components inside roaster (eject mechanism, motor, heating element, fusible link, etc.) and disassembling the frame to replace horizontal frame member. Requires good organizational skills.
DIFFICULT- Requires the removal of the roast chambers rear wall. Easier than the "red" level because the frame does not have to be disassembled. Still requires removing nearly all the same components as the red level
SLIGHTLY DIFFICULT - Requires disconnecting all wires on the main circuit board in order to be able to remove the base and replace the main circuit board. Easier than the "ORANGE" level because the major components do not need to be removed.
EASY - This change would only require the switching of the control panel by removing the old one and installing the replacement. Normally would not require any further disassembly.
X POINTLESS or NOT RECOMMENDED - An unnecessary downgrade. For example, there is no need to go from a "-2" model to one without the emergency eject mechanism.
NLA NO LONGER AVAILABLE- A discontinued item.
 
Available Upgrade Parts and Kits
  Below are the parts and kits indicated in the above grid. The part numbers are links to the Hottop Online Store's ordering page for each part. The ordering page has a more detailed description of each item.
Part
Number
Image
Description
Part
Number
Image
Description
UK-100
"-2" Upgrade Kit
  P-12b
"D"
Control
Panel
UK-101
"B-2K" Upgrade Kit
  P-12kb
"P"
Upgrade Kit
UK-102

"P-2K" Upgrade Kit

NOTE: must have existing
chaff tray switch *1

  P-12d
"P-2"
Control
Panel
(also replaces
"P" panel)
UK-103
"B-K" Upgrade Kit
  P-12e
"B-2K"
Control
Panel
UK-104

"P-K" Upgrade Kit

NOTE: Must have existing
chaff tray switch *1

  P-12f
"P-2K"
Control
Panel
UK-105
"B-K+"
Upgrade Kit
  UK-106  

"B-2K+" upgrade kit

"B-K+" kit
with
"-2" Kit


UK-107

"B-K+"
for KN-8828
and
KN-8828D
Upgrade Kit

These two
kits for the
KN-8828
and
KN-8828D
ONLY!

UK-108
 

"B-2K+"
for KN-8828
and
KN-8828D

"B-K+" kit
with
"-2" Kit

P-31
Main
Circuit Board for all
P and B models
  P-19b
"P" and "B"
Main
Control
Cable
The Following Are No Longer Available
No
Longer
Available

"B"
Upgrade Kit
See UK-103
above

 
No
Longer Available

"B"
and
"B-2"
Control
Panel
See UK-103
above

*1 -UK-102 and the UK-104 - These kits may only be installed on a machine with an existing chaff tray switch.
  If your machine displays a notice that the chaff tray needs to be removed before the next roast can begin, it has a chaff tray switch.
If you are not sure, remove your chaff tray and look into the void where the tray slides. Look along the right side of that cubby area and you will see the activating arm of the switch in a cutout of the metal frame.
 
All specifications subject to change without notice.

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