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Flame Rectification/Conductance
Flame Supervision Devices
4
Chemical Engineering
Professional
10/28/2015

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Term

Flame Rectification (Conductance)

KEYWORDS

Definition

A method of flame proving.

Flame converts AC voltage to DC voltage.

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If DC current not detected, the appliance will shut down.

Voltage is passed by electrode in the flame.

Term
Flame Rectification/Conductance Where Found
Definition
Boilers,SOME COOKERS,Fires WAU , and water heaters.
Term
Flame Rectification (Conductance) TESTS
Definition

1)Operate appliance. Spark should cease after flame has ignited.

2) Turn off the gas. Unit will attempt re-ignition (1 sec)

 

3When gas is turned back on, it must ignite gas smoothly.

 

4) Unit can go to lockout after attempts at igniting OR may continue sparking.

Term
Flame Rectification (Conductance) FAULTS
Definition

1.Sparking can continue after flame has established.

 

2.If used to light pilot first,it may not switch on main burner.

 

3.Can be slow in recognising flame failure.

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