Patterson-Kelley MOD-04 ユーザーズマニュアル

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3.  Inspect burner for any signs of deterioration or 

corrosion.  Replace immediately if deterioration 
or corrosion is evident. 

The blower motor is permanently lubricated and 
does not require periodic lubrication. 

This work should be performed by factory-trained 
personnel. 

 

In addition to the recommended monthly service: 

1.  Check burner and clean off any soot or foreign 

material that may have accumulated.  See Sec-
tion 5.2 on "Cleaning the Burner."  Check for 
corrosion of the burner and its parts. If there is 
evidence of deterioration or corrosion, replace 
immediately. 

2.  Inspect combustion chamber through access 

door on front side of boiler.  To remove doors,  
remove fasteners, pull door forward slightly, 
then pull upward.  Note any signs of deteriora-
tion.  Take corrective action as necessary. 

3.  Inspect and clean heat exchanger.  Clean exte-

rior of finned tubes and flush inside of heat ex-
changer as required (separate from system 
flush). 

4.  Examine the venting system at least once a year. 

a.  Check all joints and pipe connections for 

tightness. 

b.  Check pipe for corrosion or deterioration.  If 

any piping needs replacing, do so immedi-
ately. 

5.  Inspect heating system for other problems. This 

work should be performed by factory-trained 
personnel. 

6.  Perform combustion analysis.  

7.  The relief valve should be tested as per the 

valve manufacturer’s recommendations at least 
annually or as indicated by local codes. 

8.  Leak test gas valves. 

 

 

 

 

 

 

 

          

 

 
1.  Follow Lock out / Tag out procedures for Elec-

tric, Gas, and Water connections. 

2.  Remove the top cover of the boiler. 

3.  Disconnect the pilot tube, main gas union, elec-

trode wire, ground wire, mixer core tube, UV 
Scanner, and the 4 burner hold down nuts. 

4.   Remove the burner and mixer core from the 

boiler and place it on the floor. 

5.  Use low pressure air, max. 20 psig, to blow in-

side the burner first, then outside of the burner, 
in order to remove any accumulated dust or lint 
build-up.  Also blow the air down the pilot tube 
to clean away any dust or dirt 

6.  Check that the electrode is not touching the wall 

of the pilot tube.  Also be sure the electrode is 
not cracked and that the ceramic spider is able 
to move up and down freely. 

7.  Use a soft, clean cloth to remove accumulated 

contaminants from the UV radiation tube (UV 
scanner) glass envelope. 

 

UV  
Scanner 

Burner 
Tube

Burner 
Screen 

Pilot 

Tube

Mixer 
Core 

Ignition 
Electrode