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6
Installation & Operation Manual
Ratings
SYNC
I=B=R Rating
Model Number
Note: Change “N” to
“L” for L.P. gas models.
Input
MBH
(Note 4)
Min Max
Gross
Output
MBH
(Note 1)
Net
I=B=R
Ratings
Water,
MBH
(Note 2)
SBN1000 100 1000 941 818
SBN1300 130 1300 1237 1076
SBN1500 150 1500 1444 1256
Other Specifications
Appliance
Water
Content
Gallons
Outlet
Water
Inlet
Water
Gas
Connections
Air
Size
Vent
Size
(Note 3)
8.4 2½" (2) - 2" 1½" 6" 6"
10.0 2½" (2) - 2" 1½" 6" 6"
11.4 2½" (2) - 2" 1½" 6" 6"
Maximum allowed working pressure is located on the rating plate.
NOTICE
Notes:
1. The ratings are based on standard test procedures
prescribed by the United States Department of Energy.
2. Net I=B=R ratings are based on net installed radiation of
sufficient quantity for the requirements of the building
and nothing need be added for normal piping and
pickup. Ratings are based on a piping and pickup
allowance of 1.15.
3. SYNC boilers require special gas venting. Use only the
vent materials and methods specified in the SYNC
Installation and Operation Manual.
4. Standard SYNC boilers are equipped to operate from sea
level to 4,500 feet only with no adjustments. The boiler
will de-rate by 4% for each 1,000 feet above sea level up
to 4,500 feet.
5. High altitude SYNC boilers are equipped to operate from
3,000 to 12,000 feet only with no field adjustments. The
boiler will de-rate by 2% for each 1,000 feet above
3,000 feet. High altitude models are manufactured with
a different control module for altitude operation, but the
operation given in this manual remains the same as the
standard boilers. A high altitude label (as shown in
FIG. A) is also affixed to the unit.
6. Ratings have been confirmed by the Hydronics Institute,
Section of AHRI.
UNIT EQUIPPED FOR
3,000 FT. TO 12,000 FT.
HIGH ALTITUDE
Figure A High Altitude Label Location