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Revision Notes: Revision A (ECO #C05747) initial release. Reflects
the new model numbers for the Knight XL upgrade.
Revision B (ECO #C06234) reflects changes made to the Service
Notification parameter.
Revision C (ECO #C07981) reflects changes made to the parameter
table, parameter descriptions, updates to the troubleshooting chart, and
the addition of the O-temp HEX switch.
Revision D (ECO #C09197) reflects updates made to the SMART
SYSTEM control (ECR #R04523).
Revision E (ECO #C09840) reflects the addition of the Test Procedure
for low water flow conditions on page 32.
Revision F (ECO #C10143) reflects updates made to the ignition timing
information.
KBXII-SER Rev F
04/12