Watts Aerco TAG-0072 GF-146-E Operation & Maintenance Manual page 131

Natural gas and propane gas modulating condensing boilers and water heaters
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AM Series Boilers and Water Heaters User Manual
CHAPTER 10 – MAINTENANCE
Unscrew the four nuts "B" in Figure 10-6;
10.
Remove the entire fan and burner assembly, detail "C", as shown in Figure 10-6
11.
Figure 10-6: Removing the Fan and Burner Assembly
Cleaning the Burner and Primary Heat Exchanger - Continued
12.
Use a cylindrical brush with plastic bristles to clean the inside of the combustion chamber,
item "H" per Figure 10-6
OMM-0100_E • GF-146 • 11/15/2019
Figure 10-5: Removing the Gas Valve
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Page 131 of 170

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