Ratings, Knight xl boiler i=b=r rating, Other specifications – Lochinvar 800 User Manual
Page 7: Installation & operation manual
Installation & Operation Manual
Ratings
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.
Knight XL boilers require special gas venting. Use only the
vent materials and methods specified in the Knight XL
Installation and Operation Manual.
4.
Standard Knight XL 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 Knight XL 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.
7
Maximum allowed working pressure is located on the rating plate.
NOTICE
Knight XL Boiler
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)
KBN399
80
399
373
324
KBN500
100
500
467
406
KBN600
120
600
567
493
KBN700
140
700
660
574
KBN800
160
800
752
654
Other Specifications
Boiler
Water
Content
Gallons
Water
Connections
Gas
Connections
Air
Size
Vent
Size
(Note 3)
3.4
1-1/2"
1"
4"
4"
4.2
1-1/2"
1"
4"
4"
4.2
2"
1"
4"
4"
5.0
2"
1"
4"
6"
5.7
2"
1"
4"
6"
Figure A High Altitude Label Location
UNIT EQUIPPED FOR
3,000 FT. TO 12,000 FT.
HIGH ALTITUDE