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Revision Notes: Revision A (ECO #C07970) initial release.
Revision B (ECO #C08023) reflects changes made to FIG. 6-3 on page
32 for Mass approval and changes made to FIG. 5-3 on page 28.
Revision C (ECO #C08179) reflects the addition of three (3) new vent
manufacturers (pg. 16 - Table 2A).
Revision D (ECO #C08585) reflects edits made to FIG. 4-4 and the
addition of Fixed or Variable Flow Primary in place of Full Flow.
Revision E (ECO #C08841) reflects changes made to #3 on page 42
additional information added to the humidity warning on page 7, along
with references to the Dual Fuel Supplemental Manual.
Revision F (ECO C09629) reflects the update of the AHRI and ASME
logos on page 6 and the update of condensate disposal information and
Figure 8-1 on page 39.
Revision G (ECO C10325) reflects a kit number correction (Neutralizer
kit) and the addition of version 4, software update (pg. 49).
Revision H (ECO C10391) reflects the change in the Label and Wiring
diagrams on pages 58 and 59 (ECO C10391).
Revision I (ECO C11129) reflects changes made to the Ratings (page
6), the Common Venting section, page 18 and (ECR 05455) the addition
of #7 in the Before Locating the Boiler section on page 7.
Revision J (ECO C11613) reflects the addition of models 4.0 and 5.0.
Revision K (ECO C12612) reflects edits made to Table 5A on page 25
(R05939), note added to FIG. 5-5 on page 30, the addition of the Lead/
Lag statement on page 18, along with edits made to Table 9A - Flue
Products Chart.
Revision L (ECO C12875) reflects the updates made to Table 5A on
page 25, an updated Low Voltage Field Wiring Connections diagram
in FIG. 7-3 on page 38 and a note added to the "Flow sensing device"
section on page 48.
Revision M (ECO #C13628) reflects the addition of the corrosive
contaminant warning on page 3 (R06313), temperature adjustment on
page 47 for the temperature difference between the inlet and outlet
sensor, along with service clearance edits made on pages 7 and 8
and updates made to Table 6B on page 33 - Gas Pipe Sizing Chart
(R06621).
FB-I-O Rev M
09/13
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