Weil-McLain SlimFit Manual page 113

SlimFit
™
commercial condensing gas
Maintenance
Figure 104
Cleanout plate removal/re-installation
Silicone cord must start/end at top center
Cleanout plate
Cleanout plate gasket
Re-install cleanout plate
1. Install a new silicone cord gasket into the groove. See instructions
at right.
2. Re-install the cleanout plate gasket that was removed and
inspected earlier.
3. Position the cleanout plate.
See Figure 106, page 114
4.
the cleanout plate mounting studs and tighten in the staggered
pattern shown for the boiler model until the cleanout plate is
uniformly tightened.
Gradually tighten the cleanout plate nuts in the se-
quence shown in Figure 106, page 114 until torque
reaches 18 N-m/160 in-lbs/13 ft-lbs.
If the tightening is not done using this top-to-bottom,
center out method, the plate could buckle, allowing a
flue gas leakage.
Re-install venturi/blower/mixing tube assembly
1. Follow the procedure on page 101 to re-install the burner, piping
end combustion chamber access plate and the blower/venturi/
mixing tube assembly.
2. Reconnect wiring, including the ignitor ground wire connection
to the top ignitor mounting screw.
Restart and test the boiler
1. Restore gas supply and power to the boiler.
2. Start the boiler and verify operation following the procedures
given in this manual.
Part number 550-100-116/0713
-
(continued)
Silicone cord gasket
. Re-install the hex head nuts on
fired water boiler
Figure 105
Using the cleaning tool
Horizontal
Cleanout plate gaskets —
gasket has been damaged, or the silicone cord
gasket has been damaged or stretched, replace it
before placing the boiler back in operation.
To install the silicone cord gasket:
When installing the silicone cord gasket, the seam
should start at the top middle of the gasket groove.
See Figure 104.
Carefully place the cord in the groove all around
the cleanout plate.
Do not splice pieces together. The gasket must be
installed as one piece.
When inserting the gasket, do not stretch the
cord or stretch around corners. This could cause
the cord not to seal correctly, resulting in possible
flue gas or condensate leakage.
Failure to comply could result in severe personal
injury, death or substantial property damage.
— Boiler Manual
45° Down
45° Up
If the cleanout plate
113