Install Instructions

Revision Notes: Revision A (ECO #C11832) initial release.
Revision B (ECO #C11814) reflects updates made to the polypropylene
de-rate amounts (R06316).
Revision C (ECO #C14411) reflects the removal of the page number
reference on page 14, the addition of the corrosive contaminant
warning on pages 3 and 7 (R06313), changes made to Table 7A - Gas
Piping Chart on page 43 (R6621), along with updating the flex piping
information (R06464) on page 19.
Revision D (ECO #C14713) reflects high altitude updates.
Revision E (ECO #C16461) reflects the update of piping diagram
images on pages 36 - 40 to change check valve location(s).
Revision F (ECO #C16894) reflects the removal of temperature and
pressure gauge information on page 63 (ECR R07715), the update
of water content in the Ratings table on page 6 (ECR R07744), the
regulation of pressure drop information on pages 42 and 43 and the
addition of Grundfos pump to page 35, Table 6C.
Revision G (ECO C17263) reflects the update of images on pages 39
and 40 to reflect text corrections.
Revision H (PCP #3000002702 / CN #500003259) reflects an update
to the wiring diagram on page 69. SAP numbers have been updated.
Revision J (PCP #3000005143 / CN #500006666) reflects the addition
of new venting category information on pages 23 through 25.
Revision K (PCP #3000004438 / CN #500005574) reflects an update to
the flue temperatures on page 58.
Revision L (PCP# 3000006133 / CN# 500007549) reflects the addition
of a PVC-DWV vent fitting in Table 3B on page 18.
Revision M (PCP #3000008814 / CN #500008824) reflects changes in
the water chemistry information on pages 38-43, 53, and 66.
Revision N (PCP #3000010783 / CN #500010520) reflects an update to
the low water flow requirement information on pages 38 and 58.
Revision P (PCP #3000010953 / CN #5000010523) reflects an update
to Table 6C on page 38.
Revision R (PCP #3000030779 / CN #500020179) reflects an update to
the piping diagrams, Table 6C, Table 10A, and Table 12A.
Revision T (PCP #3000031846 / CN #500020868) reflects an update to
the ratings table on page 6.
Revision U (PCP #3000038559 / CN# 500026649) reflects an update to
the water heater sensor material number.
Revision V (PCP #3000041012 / CN #500028988) reflects updates on
pages 19 and 28.
Revision W (PCP #3000043534 / CN #500031265) reflects an update to
water heater standards involving vent systems, minimum terminations,
and bird screens.
Revision X (PCP #3000045219 / CN #500032730) reflects an update to
FIG. 4-4A - 4-4B and Table 4B - 4C.
WA-I-O_100161778_2000019063_Rev X
04/21