Not a member yet?
Click here to register.

Forgotten your password?
Request a new one here.
You must login to post a message.

03/01/2024 8:52 AM
nguyenanh, coffee drink ?

02/29/2024 1:31 PM
welcome cup, peternh

02/27/2024 2:10 AM
Airtimid and Foolmeonce, welcome to forum

02/26/2024 5:58 PM
kinkades Welcome

02/26/2024 11:46 AM
seidler Welcome

In Memory Of Ginny

Latest Donations
dmccallum - 10.00
JackH - 25.00
snwcmpr - 10.00
Anonymous - 2.00
Anonymous - 5.00
Users Online
Guests Online: 6

Members Online: 0

Total Members: 8,121
Newest Member: nguyenanh

View Thread

Who is here? 1 guest(s)
 Print Thread
roasting with popper - help installing dimmer
Hi there.

After reading lots of articles and watching videos, I still need help with modding my popper. The question is: is it possible to just cut 1 wire and install a dimmer to control just the heating, and leave the fan always running 100%?

This is a photo of the popper:

Another angle:
(You can more clearly see the input wire, and the earth wire going up to the bean container at the top. )

This is my interpretation of elements:
1 - input cable 220v
2 - switch on/off wires (I had removed the switch to disassemble the thing)
3 - circuit board that I don't know what it's for (may be transformer?)
4 - thermo cutoff?
5 - don't know - some security fuse?
6 - these wires come from the circuit board and enter the metal base, I assume to the heating element?

So I have a 1 phase dimmer, 220v 4a, and want to control the heating with it.

What wire can I cut and install the dimmer on?

I am inclined to cut the brown wire that comes from the #4 thermo cutter. It comes from the bottom through the circuit board and is originally the brown wire from the 220v input cable...

Depends how is your fan wired, taking its low voltage from a main heater split (parallel), or having its own series resistor.
Only in the second case you can mount the dimmer and let fan always 100%, which is not so good, imo...
This detail can't be seen from your pictures, it's internal to the blower build.
To find the connection type, I would unsolder the rightmost white wire, which probability to be fan power is 90%, and measure the resistance against the other wires.

The circuit board host the rectifier diodes bridge (motor is DC), and a LC filter, to
cut the motor brush sparks noise.
The 5 is indeed looking as a security fuse, but the placement is strange, usually this is inside the blower... so I guess is a current fuse, not thermal.
Jump to Forum:

Similar Threads

Thread Forum Replies Last Post
New to roasting. Could you help me with roasting advice? Roasting Coffee 24 02/18/2024 10:45 PM
Hottop KN-8828P-2K - Roasting Profiles HotTop Roaster 7 02/09/2024 7:05 AM
New to roasting and could use helpful advice w/SR800 roasting. Roasting Profiles 8 01/29/2024 9:36 AM
Re roasting underdeveloped coffee beans Roasting Coffee 5 01/02/2024 11:17 PM
Adventures in fluidbed roasting Roasting Coffee 25 10/19/2023 5:56 PM
Homeroasters Association Logo, and all Content, Images, and Icons © 2005-2016 Homeroasters Association - Logos are the property of their respective owners.
Powered by PHP-Fusion Copyright © 2024 PHP-Fusion Inc
Released as free software without warranties under GNU Affero GPL v3
Designed with by NetriX
Hosted by skpacman