Question about Dayton G73 Utility Heater
I just installed a used unit heater in my shop today. I had to convert it from NG to LP. I was tickled to see it worked fine, then finished the instalation with routing a new vent stack. Since installing the "stack", the heater intermittantly pops and cracks, reignition "flashes", etc.....Do you think the stack has restricted the air flow enough to be cutting out the vacuum switch? The hi-limit? What should I do? Any suggestions where to start? THANX!
SOURCE: dayton mod#3e219b gas heater
air compressor output should be 3.5 psi. to the fuel nozzle. the cowlings purpose is to channel the air-fan output through the rear vanes of the combustion chamber. if these openings are restricted then air can't get into the chamber. check to see that the fan blades aren't jammed against the cowling. if they won't spin then you won't get any air through the unit.
Posted on Dec 26, 2007
Have you tried the flue vent? If not, an easy way to check this would be to take the vent pipe off of the unit and see if it continues to have the problem. In most cases, this happens when you have blocked return air or dirty filters, flue blocked, or induction is blocked from switch or housing. One other possibility would be a dirty/clogged a coil which isn't allowing sufficient air to push out causing the limit to trip. I hope this helps somewhat.
Posted on Feb 07, 2010
Dayton is primarily sold by www.Grainger.com . You must purchase a re-jetting kit (Natural Gas Valve) from them to accomplish this.
Grainger Part # Natural Gas Valve
Item # 1FEK5
Natural Gas Valve, For Use With 5VD61, 5VD63, 5VD65 DAYTON
1FEK5 4401 Usually ships
1-3 Days 1 $144.30 Sale Price$115.44 See All: Parts
Posted on Sep 23, 2011
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