Watts Aerco TAG-0072 GF-146-E Operation & Maintenance Manual page 130

AM Series Boilers and Water Heaters User Manual
CHAPTER 10 – MAINTENANCE
Rotate the air inlet elbow connector "B" (Figure 10-3) in the up direction.
5.
Pull in the left direction "C" the air inlet silencer and remove it from the fan.
6.
Figure 10-3: Removing the Air Inlet Silencer
Unscrew nut "H" (Figure 10-4). Take note of the gasket between nut "H" and the gas valve
7.
and remove the electrical plug from the gas valve.
Figure 10-4: Removing the Nut & Spring from the Gas Valve
Remove spring "A", as indicated in Figure 10-4, using a screwdriver.
8.
Cleaning the Burner and Primary Heat Exchanger - Continued
Remove the gas valve from its position (see Figure 10-5). Note the O-ring "L" per Figure 6-5.
9.
OMM-0100_E • GF-146 • 11/15/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 130 of 170