Cheatography
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A reference sheet for Oil Burner Adjustment / Diagnosis
This is a draft cheat sheet. It is a work in progress and is not finished yet.
Nozzle Selection
Always check boiler manufacturer for nozzle size and setting first based on boiler requirements and BTU needs |
Rule of thumb (NOT ALWAYS) If gun has a retention head use a 60 Degree or less |
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CAD Cell Diagnosis
Testing Ohms for CAD Cell |
Good CAD Cell |
Dark/No Light 20K+ Ohms |
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Light/Fire On Low Numbers 400-800 Ohms |
Bad CAD Cell |
Light/Fire is on Ohms reading in the thousands or 0 |
Pump Solenoid Test |
Cleancut should be 400-500 ohms, Suntec 494-526 ohms and Riello 1215-1485 between terminals 1&2. Outside these parameters, you have a bad coil. |
Testing Oil Pump/Supply Line
Put on Pressure Gauge on Pump Outlet |
Run pump for a few seconds then shut down. |
Once shut down pressure will drop 20%, if pump does NOT hold at this pressure and continues to fall = Bad Pump |
Vacuum Test- micro bubbles start @ 6" of vacuum issues at 8"-10" |
Place Vacuum Gauge INLINE on inlet of pump, DONT run pump dry |
Start burner and OPEN bleeder....Close bleeder @ 15" vacuum and shut off burner |
Pump should hold vacuum for 5 minutes, if 15" CANNOT be achieved or CANNOT HOLD for 5 minutes, CHANGE PUMP |
To test SUPPLY LINE for leaks.. Shut OFF TANK supply and install Vacuum Gauge Inline |
Start Burner then Close Valve BETWEEN Pump and Vacuum Gauge @ 10-15" and shut down burner |
Vacuum should hold for 10 minutes |
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Primary Controls
Intermittent- Spark is contsantly ON |
Stack Switch (Thermo Primary) Most Common Honeywell RA117A |
Interrupted- Spark shuts off after ignition of flame |
Power (HOT) Line 1, Neutral to Line 2, Motor & Oil Solenoid to "Motor" (Line 3), If its has Interrupted Control wire to "ING" (Line 4), For Intermittent Control Connect to "Motor" (Line 3) |
Intermittent CANNOT be used for Interrupted Controls, But you adapt a Interrupted Control for a Intermittent Control |
Two Wire Thermostats Connect "W" & "B"--Three Wire RED to "R" WHITE to "W" BLACK to "B" |
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