Install Instructions

Revision A (ECO #C06854) initial release.
Revision B (ECO #C08222) reflects the changes to the water pipe
clearances from 1" to a 1/4" (ECR #R04077), pages 7, 8, and 33 and
changes made to the service clearances (left side) from 24" to 12" (ECR
R04002).
Revision C (ECO #C08645) reflects additional cleaning and inspection
instructions for the condensate trap (page 75).
Revision D (ECO #C09197) reflects additional information added to the
humidity warning on page 7, along with updates made to the SMART
SYSTEM control (ECR #R04523).
Revision E (ECO #C09803) reflects the addition of the new Polypropylene
Vent material section, rearranging the venting section, and the addition
of the AHRI and ASME logos (R05009).
Revision F (ECO #C09843) reflects the addition of the manual air vent in
the outlet tubing and the new condensate trap pipe (R04984).
Revision G (ECO C10297) reflects the addition of the venting notice on
page 16 and updates made to the ignition timing information.
Revision H (ECO C10450) reflects changes made to Table 10A on
page 62.
Revision I (ECO #C11102) reflects outdoor air reset updates.
Revision J (ECO #C11736) reflects changes made to the ratings page
(page 6).
Revision K (ECO #C11821) reflects the sidewall vent kit changes.
Revision L (ECO #C12763) reflects edits made to place the check
valves on the outlet side of the pump on all of the piping diagrams
(R05913), edits made to Table 6A on page 36 (ECR R05387) along with
revising the maximum CO2 and the minimum O2 (R06021) on page 62.
Revision M (ECO #C11814) reflects updates made to the polypropylene
de-rate amounts (R06316).
Revision N (ECO #C13178) reflects edits made to the condensate trap.
Revision O (ECO #C13876) reflects the removal of the page number
reference on page 14, edits made to Table 6A on page 36 (R6616),
the addition of the corrosive contaminant warning on page 3 (R06313),
updating FIG 6-4 on page 39 (R6572), along with updating the flex
piping information (R06464) on page 20.
Revision P (ECO C14411) reflects the addition of the corrosive
contaminant warning on page 7 (R06313).
Revision Q (ECO #C14713) reflects high altitude updates.
Revision R (ECO #C16186) reflects changes made to the Boiler Pump
Speed Output section on page 53.
Revision S (ECO C17014) reflects the standardization of pressure drop
information on pages 49 and 50 and the addition of the system supply
sensor note on page 53.
WH-I-O Rev S
01/15