AAON LZ Series, Установка, эксплуатация и обслуживание

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3. Insert the male end into the female section.
Push the units together and turn them until
half of the bead on the male end is covered by
the flared edge of the female end. This
creates the needed airtight seal for Category
II, III, or IV appliances. Align the seams on
the vent lengths and orient them upward on
all horizontal applications.
4. Tighten the locking band with a nut driver
until snug, plus a quarter turn. Before
proceeding, recheck all joints end ensure that
all male sections extend to the top of the
flared female end and all clamps are
tightened.
Figure 22 - Correct Joint Connection
Figure 23 - Incorrect Joint Connection
5. Attach vent piping to the vent connector on
the boiler and run vertically through the roof
of the unit. All vent pipes and fittings will be
stainless steel components.
6. The air intake piping must terminate in a
down turned 180
°
return pipe no further than
2 feet horizontally from the center of the vent
pipe. The placement avoids recirculation of
flue products into the combustion air stream.
7. The vent piping must terminate in an up
turned coupling with the top of the coupling
or rain cap at least 36 inches above the air
intake.
For units with stainless steel piping, all
components must be installed in
accordance with the manufacturer’s
instructions to ensure all joints are
secure and sealed correctly.
WARNING
For units with multiple boilers,
terminate all vent pipes at the same
height and all air intake pipes at the
same height to avoid recirculation of
flue products. Failure to do so may
result in property damage, personal
injury, or death.
WARNING