Fuel selenoid
- Thread starter fluh01
- Start date
Russ Johnson
Equipment Expert
Many of the 12 volt burners have a cad cell flame sensor on them, but they use them to sense flame..not flame out. If the device were to be mounted on your home furnace, once the burner starts, it has to establish a flame within 15 seconds or the cad cell locks out the burner. On a 12 volt, once the cad cell sees a flame front, it drops the transformer out to conserve battery amperage. Does your machine have one at all? If not, one may be retrofitted to your burner. It may require mounting an electrical box on the side of your burner and you'll have to do some re-wiring.
Hotwaterwizard
Hotsy Service Tech
Well something to think about.
The Flame sensor cuts the power to the Coil when a flame is established.
There may be a way to use this Idea.
The problem is that these devices work to start the burn process then they time out when the flame is going. So we are Dead in the water there. So the solution is found elsewhere.
Lets look at a Stationary Natural Gas machine and how it works. The pilot light has a sensor on it that will not keep the burner running if there is no heat on the sensor. A Thermocoupler. Well even with that we have a problem using it with a Diesel Burner. We have no heat to start with so we are dead in the water from the get go.
Then we have the problem of trigger gun control. When we let off of the trigger the heat stops and our Imaginary device will trip off and stop the burner from lighting again.
Hmmm we have to put some thought into this.
The Flame sensor cuts the power to the Coil when a flame is established.
There may be a way to use this Idea.
The problem is that these devices work to start the burn process then they time out when the flame is going. So we are Dead in the water there. So the solution is found elsewhere.
Lets look at a Stationary Natural Gas machine and how it works. The pilot light has a sensor on it that will not keep the burner running if there is no heat on the sensor. A Thermocoupler. Well even with that we have a problem using it with a Diesel Burner. We have no heat to start with so we are dead in the water from the get go.
Then we have the problem of trigger gun control. When we let off of the trigger the heat stops and our Imaginary device will trip off and stop the burner from lighting again.
Hmmm we have to put some thought into this.
Hotwaterwizard
Hotsy Service Tech
Wayne Makes one here it is.
http://www.waynecombustion.com/accessories.cfm
Oil Primary Control
The Wayne Primary Control for oil burners is a 115V Safety Control which automatically shuts down the burner if no flame is present. It is available in 15, 30 and 45 seconds. This control is inexpensively priced and can directly replace the Honeywell or Carlin. All units for wholesale are individually boxed and come with a 3-Year Warranty.
Beckett Makes one too Here it is
http://www.beckettcorp.com/product/productdetail.asp?detailid=17
Features
Interrupted-Duty Ignition--extends the life of the ignition system (igniter/transformer and electrodes) and reduces component noise.
Limited Recycle/Limited Reset--minimizes the number (2) of times the homeowner can hit the reset button.
Communications Port--enables the control to communicate with service instruments, security systems or data acquisition equipment.
Diagnostic LED--a service tool that indicates cad cell resistance and operational status (lockout, recycle, etc.).
Ambient Range from -40 to +150 F
Optional Features--15 second pre-purge, selectable post-purge and alarm contacts.
http://www.waynecombustion.com/accessories.cfm
Oil Primary Control
The Wayne Primary Control for oil burners is a 115V Safety Control which automatically shuts down the burner if no flame is present. It is available in 15, 30 and 45 seconds. This control is inexpensively priced and can directly replace the Honeywell or Carlin. All units for wholesale are individually boxed and come with a 3-Year Warranty.
Beckett Makes one too Here it is
http://www.beckettcorp.com/product/productdetail.asp?detailid=17
Features
Interrupted-Duty Ignition--extends the life of the ignition system (igniter/transformer and electrodes) and reduces component noise.
Limited Recycle/Limited Reset--minimizes the number (2) of times the homeowner can hit the reset button.
Communications Port--enables the control to communicate with service instruments, security systems or data acquisition equipment.
Diagnostic LED--a service tool that indicates cad cell resistance and operational status (lockout, recycle, etc.).
Ambient Range from -40 to +150 F
Optional Features--15 second pre-purge, selectable post-purge and alarm contacts.