Revision Notes: Revision A (ECO #C02428) initial release.
Revision B (ECO #C03046) reflects the addition of FIG. 5-3 on page
27, the addition of a pressure gauge to FIG. 5-6 on page 30, edits
made to FIG. 7-1 on page 35, edits made to the Low Water Cutoff
Protection section on page 48 along with the addition of the Flow
Sensing Device section.
Revision C (ECO #C03223) reflects edits made to the high altitude
section on page 6.
Revision D (ECO #C03735) reflects edits made to the venting section
removal of B149.2, along with the addition of the hydro and dirt
separator.
Revision E (ECO #C04062) reflects changes to the terminology in all
SYNC manuals and labels from module to heat exchanger (exception:
control module), along with changing out “dirt separator” for “Y-strainer
(ECR #R02455), edits made to the ceramic fiber material warning,
removal of the stabilitor from FIG. 11-2 (C04057), and placing the
illustrations disclaimer on all the piping drawings (ECR #R02431).
Revision F (ECO #C04560) reflects the addition of Modbus to the
manual, new heat exchanger cleaning procedure, schedule 80 as
acceptable CPVC material (Table 2A) (R02799), and changes made
to Table 5A.
Revision G (ECO C07283) reflects the update of FIG. 7-1 on page 38
to show current label and wiring connections along with an update to
the Ladder and Wiring diagrams on pages 64 and 65.
Revision H (ECO C07679) reflects the update of FIG. 6-1 on page 34
to show the gas pressure regulator, ECR 04077 - combustible water
pipes changed from 1" to a 1/4", addition of the rope gasket notice on
page 61 (R03940) and changes made to Table 2A on page 19.
Revision I (ECO C07981) reflects the addition of the O-temp switch
and edits made to LBL20045 (ECR R04243 and C07959 - add O-temp
switch, changes made to Table 5A on page 31 (ECR R04335) and
change Module 1 and 2 callouts to HEX 1 and 2 on the label).
Revision J (ECO C08327) reflects changes made to the
temperature callouts under Protection Features on page 50 (ECR
R04145).
Revision K (ECO C08407) reflects updates made to LBL20045
(ECR R04434) along with changing the water outlet from 2 1/2”
NPT to 3” NPT (ECR R04003), pages 4, 6, and 31 and updating
the O-temp switch description on page 4.
Revision L (ECO #C08689) reflects additional information added
to the humidity warning on page 7, updates made to LBL20046
Rev F (ECO CO8689), the addition of the new Polypropylene Vent
material section and rearranging the venting section.
Revision M (ECO C09691) reflects the update of AHRI and ASME
logos on page 6.
Revision N (ECO C10594) reflects the update of Wiring and
Ladder diagrams on pages 64 and 65.
Revision O (ECO 11393) reflects edits made to Table 5A on page
31 along with changes made to the starter piece callout in the
Warning on page 19.
Revision P (ECO #C11814) reflects the addition of Metal Fab as
an approved supplier.
Revision Q (ECO #C14411) reflects the removal of the page
number reference on page 14, changes made to Table 6A - Gas
Piping Chart on page 36 (R6621), along with the condensate trap
changes (R06594), and the addition of the corrosive contaminant
warning on pages 3 and 7 (R06313).
Revision R (ECO #C14713) reflects high altitude updates.
Revision S (ECO #C15251) reflects the addition of the burner door
temperature switch updates (R6322).
Revision T (ECO C17014) reflects the standardization of pressure
drop information on pages 35 and 36.
Revision U (Change #500000695) reflects the addition of ICC
venting options on page 21 (R06799) along with edits made to
the notice on the piping diagrams on pages 32 and 33 (C16461),
edits made to the outlet sensor callout on page 4 (R07074) and
the addition of the California contaminant warning on page 3
(R07228).
SYNC-I-O Rev U_DIR #2000017704_MM #100161722
06/15
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