NOZZLE MIX SYSTEMS
TROUBLE SHOOTING NOZZLE-MIX GAS BURNERS
A. Symptom: Not enough gas to burner.
Causes: 1. Regulator outlet pressure too low.
2. Gas piping and valves between regulator and burner too small. 3. Gas supply pressure does not meet requirements for burner. (See burner bulletin) 4. Bleeder set for lower percentage than necessary. 5. Foreign matter in piping between regulator and burner.
B. Symptoms: Sealed-in burner unstable. Causes: 1. Too rich or too lean. (See burner bulletin for characteristics) 2. Tile broken loose from mounting plate. 3. Plugs left out of mounting plate. 4. Tile in bad condition. C. Symptoms: Open fired burner unstable. Causes: 1. Too rich or too lean. (See burner bulletin for characteristics)
2. Extension tile not used where required. (See burner bulletin) 3. Suction in chamber pulling so much air in through register that normal gas supply is not adequate. 4. Tile in bad condition.
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