Patterson-Kelley MOD-04 ユーザーズマニュアル

 30 

•  Check the cabinet pressure for a minimum of 

0.3" w.c. 

•  Check burner is clean (refer to Section 5.2). 
 

In the event the pilot flame is not detected by the 
UV scanner during the 10 second trial-for-ignition 
period (Step 9), the pilot gas valve and spark igni-
tion are de-energized.  At this time a safety lockout 
occurs which de-energizes all outputs from the pro-
grammer except Terminal A, which is connected to 
the "Flame Failure" indicator.  A manual reset of the 
programmer (located inside the control panel) is 
required. 

 

In the event of a main flame failure during a firing 
period, the main fuel valves are de-energized and 
the programmer immediately goes into "lockout" 
mode.   If flame failure occurs and the indicator is 
illuminated, the programmer must be manually re-
set. 

 

 

If any “Manual Reset” limit device trips, 

reset without determining and correcting the cause. 

 

(Flame safeguard, high or low gas pressure, 

high temperature limit, stack temperature.)