Service manual

Revision Notes: Revision B (AW-I&O-Rev B) reflects the addition of
the Dungs information to the manual.
Revision C (AW-I&O-Rev C) reflects changes made to pages 30 and 31
(piping diagrams).
Revision D (AW-I&O-Rev D) reflects changes made to Model 199
orifice.
Revision E (AW-I&O-Rev E) reflects an additional LP warning on page
13.
Revision F (ECO #C02407) reflects the addition of air inlet pipe
materials, air inlet, air pressure switch, flow switch, relief valve, high
altitude, new vent termination, Maintenance Section along with updates
made to the ladder and wiring diagrams.
Revision G (ECO #C02545) reflects the addition of references to the
safety shutoff testing and instructions, sediment trap, periodic cleaning
of screens in vent terminations, wall thickness for direct vent
terminations, removal of B149.2 references, approval of the 3"
concentric vent kit for ULC-S636, the addition of the Scald Warning
Label and sidewall vent termination kit number correction.
Revision H (ECO #C02870) reflects the addition of a mixing valve to the
piping diagrams (FIG.’s 6-4 thru 6-8, pgs. 30 - 34).
Revision I (ECO #C02738) reflects edits made to the LP Conversion
Table for the new orifice on the 399 model (page 12) along with edits
made to Table 6C on page 29.
Revision J (ECO #C03223) reflects edits made to the high altitude
section on page 7 and updates made to the condensate trap image on
pages 44 and 59.
Revision K (ECO #C04150) reflects the addition of Models 600 - 800
along with venting updates.
Revision L (ECO #C05457) update the vent table to reflect Schedule 80
as acceptable CPVC material (R02799), add flex-smooth wall to the
FasNSeal material (ECR #R02845), update the HEX cleaning
procedure to reflect the new HEX cleaning kit (R02634), add stainless
steel as acceptable material in a closet or alcove installation (R02900).
AW-I-O Rev L
4/10