Revision Notes:
Revision B (AW-SER-Rev B) reflects the addition of
the Dungs information to the manual.
Revision C (ECO #C02407) reflects the addition of the air pressure
switch, FIG. 3-1, removal of pocket pc references and changes made to
the Circulation Pump section (page 15).
Revision D (ECO #C02545) reflects the addition of references to
periodic cleaning of screens in vent terminations and safety shutoff
testing and instructions.
Revision E (ECO #C02738) reflects the addition of the Gas Valve
Adjustment Procedure for a 399 model on page 33.
Revision F (ECO #C03296) reflects updates made to the condensate
trap image (FIG. 2-1) on page 17.
Revision G (ECO #C04150) reflects the addition of Models 600 - 800.
Revision H (ECO #C05457) reflects the new LWCO on the Control
Inputs image on page 6 (#C04031), update the HEX cleaning procedure
to reflect the new HEX cleaning kit (#R02634), and updates to the
ceramic fiber warning.
AW-SER Rev H
4/10
