Weil-McLain SlimFit 2 Series Manual page 103

SlimFit ® Series 2
Maintenance
Figure 93
Cleanout plate removal/re-installation
Silicone cord must start/end at top center,
add a dap of silicone over joint.
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.
4. See Figure 95, page 104. Re-install the hex head nuts
on 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
sequence shown in Figure 95, page 104 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 91 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 pro-
cedures given in this manual.
Part number 550-100-561/0224
commercial condensing gas
(continued)
Silicone cord gasket
- — Boiler Manual
fired water boiler
Figure 94
Using the cleaning tool
Horizontal
Cleanout plate gaskets — If the cleanout
plate gasket has been damaged, or the
silicone cord gasket has been damaged or
stretched, replace it before placing the boiler
back in operation.
Replace cleanout plate gasket:
Replace the red silicone cord with new from
Annual Maintenance kit or cover plate replace-
ment kit.
Make sure any old silicone has been properly
removed.
Loosely hold gasket in hands, leave enough
slack that when inserting into both upper cor-
ners of the machined groove so there is a slight
sag in the middle.
Carefully press the top portion of the gasket
into the groove
Loosely grab the bottom portion of the gas-
ket, and insert into the bottom corners of the
machined groove, again trying to leave a little
slack in all of the straight portions of the groove.
Carefully press the gasket into the sides and
bottom portions of the machined groove.
Failure to comply could result in severe per-
sonal injury, death or substantial property
damage.
45° Down
45° Up
103