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1. Remove jacket top panel.
2. Remove and discard inner stack adapter panel.
3. Install jacket top panel.
4. Insert tabs of outdoor top into keyholes located on
jacket top panel (4 places). See Detail A.
5. Snap tabs on outdoor top into the locked position
of the keyhole so the top will not pull out. See
Detail B.
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1. Lower outdoor top onto unit. Position top so it is
centered on unit from side to side and front to rear.
2. Tighten the (4) screws (as indicated in Fig. 8) until
they come in contact with the unit jacket top, then
evenly tighten all (4) screws to secure to unit.
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Boilers are shipped with outdoor vent terminal factory
installed.
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1. Shut-off main electrical power switch to boiler.
2. Turn heater manual switch located in upper control
panel to the "OFF" position.
3. Shut-off gas supply and water supply to the boiler.
4. Mount drafthood on boiler and attach with the
sheet metal screws provided. Drafthood should be
positioned with the vent sensor located on the
front left side (see next page).
5. Remove plastic plug from left side of boiler jacket
and install the plastic grommet provided.
6. Route flue sensor wire harness through the grom-
met installed in Step 5.
7. Remove door and locate wire from roll-out sensor
to high limit with the male/female connector.
8. Disconnect male/female connector and attach to
the 2 wires from drafthood vent sensor harness.
Outdoor Top
(Shipped Loose with Heater)
Detail A Detail B
Fig. 6: Installing Outdoor Top—Models 181-401 & 182-
400
Fig. 7: Installing Outdoor Top—Models 514–824
JACKET TOP
F
ASTENING
SCREW
Fig. 8: Installing Outdoor Top Detail—Models 514–824