Fulton Caliber (CAL) Condensing Hydronic Boiler - Manual (Page 27)

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SECTION 2
CAL-IOM-2014-0129
INSTALLATION
2-21
upward pitch can be maintained.
6. When penetrating a non-combustible wall, the hole through the wall must
be large enough to maintain the pitch of the vent and provide sealing. Use
adhesive material to seal around the vent on both sides of the wall. When
penetrating a combustible wall, a wall thimble must be used. See Figure 8
for installation instructions. Minimum wall thickness through which vent
system may be installed is 3.25 inches (82.5 mm). Maximum wall thickness
through which vent system may be installed is 20 inches (508 mm).
FIGURE 10 - VENTING TERMINATIONS
 Wall Thimble Installation
Adhere to the following for installation (see Figure 11):
1. The thimble is inserted through the wall from the outside. Secure the
outside fl ange to the wall with nails or screws, and seal with adhesive
material.
2. Install the inside fl ange to the inside wall, secure with nails or screws, and
seal with adhesive material.
3. Pass the vent pipe through the thimble from the outside and join to the
rest of the vent system.
!
WARNING
All information in this manual is for
reference and guidance purposes,
and does not substitute for required
professional training, conduct,
and strict adherence to applicable
jurisdictional/professional codes and
regulations.
Do not use any dangerous source of
fi re or smoke (e.g., lighter, candle) to
test equipment at any time.
Assure all electrical connections are
powered down prior to attempting
replacement or service of electrical
components or connections of the
boiler.
4
CAUTION
Never install a barometric damper on
fl ue systems designed with positive
pressure.