Revision Notes: Revision A (ECO #C05747) initial release. Refl ects
the new model numbers for the Knight XL upgrade.
Revision B (ECO #C06188) refl ects changes made to FIG. 6-10 (ECR
#R03474) remove ghost pipe, changes made to FIG.’s 6-7, 6-9, and
6-11 (R03563) change the direction of the arrows, and edits made to
the ladder and wiring diagrams (ECO #C06158).
Revision C (ECO #C06234) refl ects changes made to the Service
Reminder feature.
Revision D (ECO #C07981) refl ects the layout in InDesign, edits made
ECR04077 - combustible water pipes change from 1” to a 1/4”, changes
made to Table 3B on page 20, ECR03940 - addition of the rope gasket
warning, ECR03740 - changes made to FIG’s 7-1 thru 7-4 pages 46
and 47, changes made to Table 3A on page 18, ECR03727 - 400 - 601
reference applied incorrectly on pages 15 and 16, add O-temp switch.
Revision E (ECO #C09197) refl ects additional information added to the
humidity warning on page 8, edits made to the O-Temp switch defi nition
on page 4, along with updates made to the SMART SYSTEM control
(ECR #R04523).
Revision F (ECO #C09803) refl ects the addition of the new Polypropylene
Vent material section, rearranging the vent section, and the addition of
the AHRI and ASME logos (R05009).
Revision G (ECO #C10143) refl ects updates made to the ignition timing
information.
Revision H (ECO #C11814) refl ects the addition of Metal Fab and
Security Chimney as approved suppliers along with placing check
valves on the outlet side of the pump on all of the piping diagrams and
updates made to the polypropylene de-rate amounts (R06316).
Revision I (ECO #C14411) refl ects the removal of the page number
reference on page 15, the addition of the corrosive contaminant
warning on pages 3 and 8 (R06313), changes made to Table 7A - Gas
Piping Chart on page 48 (R6621), along with condensate trap changes
(R6594) and updating the fl ex piping information (R06464) on page 21.
Revision J (ECO #C14713) refl ects high altitude updates.
Revision K (ECO #C15251) refl ects the addition of the burner door
temperature switch updates (R6322).
Revision L (ECO C17014) refl ects the standardization of pressure drop
information on pages 47 and 48.
Revision M (Change# 500000695) refl ects the addition of ICC venting
options on page 22 (R06799) along with edits made to the piping
diagrams on pages 41 - 45 (C16461) and the addition of the California
contaminant warning on page 3 (R07228).
Revision N (PCP# 3000001144 / CN# 500002277) refl ects the addition
of edits made to Boiler Water on page 3, along with the addition of the
Important and Notice items under General Piping Information on page
36, as well as edits to section 10 (Start-up) on pages 55 and 56. SAP
part numbers have been updated.
Revision P (PCP# 3000002352 / CN#
500002601
) refl ects an update to
the venting materials in Table 31 on page 22.
KBXII-I-O_MM #100161488_DIR #2000013409_Rev P
03/16
