Weil-McLain Standing Pilot Cast Iron Gas Boiler CGA25SPDN Manuale Utente

46

Part Number 550-101-009/0107

(cont.)

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and remove draft hood after turning off power to 
the boiler.

2.  Use a bright light to inspect the boiler flue collector 

and heating surfaces.

3.  If the vent pipe or boiler interior surfaces show 

evidence of soot, follow 

 in this manual section. Remove the flue 

collector and clean the boiler if necessary after closer 
inspection of boiler heating surfaces.

4.  If there is evidence of rusty scale deposits on boiler 

surfaces, check the water piping and control system 
to make sure the boiler return water temperature is 
properly maintained (per this manual).

5.  Reconnect vent and draft hood. Replace all boiler 

components before returning to service.



leaks from the boiler. If found, locate source of leaks 
and repair.

"URNERS

 

The boiler contains ceramic 

fiber and fiberglass materials. 
Use care when handling these 
materials per instructions on 

 of this manual. Fail-

ure to comply could result in 
severe personal injury.

 

If insulation is damaged or 

displaced, do not operate 
the boiler. Replace or reposi-
tion insulation as necessary. 
Failure to replace damaged 
insulation can result in a fire 
hazard, causing severe person-
al injury, death or substantial 
property damage.

1.  After turning off power to the boiler, remove the 

jacket door and base access panel (

, item 

, 

page 62).

2.  Inspect burners and all other components in the  

boiler base.

3.  If burners must be cleaned, raise rear of each 

burner to release from support slot, slide forward 
and remove. Then brush and vacuum the burners 
thoroughly, making sure all ports are free of debris. 
#AREFULLY

4.  Inspect the base insulation.

a.  Pay attention to the 

on page 68 

regarding working with insulation materials.

B

against all four sides of the base.

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LUBRICATED



circulators requiring oil, following circulator man-
ufacturer’s instructions. Over-oiling will damage the 
circulator.

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1.  Perform all start-up procedures given in Section 

 

of this manual.



 is correct and that fill 

system is working properly.



 (if used) is at the right con-

centration and that inhibitor level is correct.

4. 

, per manual Sections 

 and 

, 

verifying no indications of leakage and all piping 
and connections are in good condition.

5. Read the 

 

(manual Section 

) applying to the boiler.

6.  Start the boiler following appropriate 

 (manual Section 

).