Ratings, Knight boiler i=b=r rating, Other specifications – Lochinvar KBII-I-O REV C 81 - 286 User Manual
Page 7: Installation & operation manual
7
Ratings
Notes:
1.
As an Energy Star Partner, Lochinvar has determined that
Knight boilers meet the Energy Star guidelines for energy
efficiency.
2.
The ratings are based on standard test procedures
prescribed by the United States Department of Energy.
3.
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.
4.
Knight boilers require special gas venting. Use only the vent
materials and methods specified in the Knight Installation
and Operation Manual.
5.
Standard Knight 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.
6.
High altitude Knight 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.
7.
Ratings have been confirmed by the Hydronics Institute,
Section of AHRI.
Maximum allowed working pressure is located on the rating plate.
NOTICE
Knight Boiler
I=B=R Rating
Model Number
Note: Change “N” to
“L” for L.P. gas models.
Input
MBH
(Note 5)
Min Max
Gross
Output
MBH
(Note 2,7)
Net
I=B=R
Ratings
Water,
MBH
(Note 3,7)
KBN081
16
80
72
63
KBN106
21
105
94
82
KBN151
30
150
135
117
KBN211
42
210
190
165
KBN286
57
285
260
226
Other Specifications
Boiler
Water
Content
Gallons
Water
Connections
Gas
Connections
Air
Size
Vent
Size
(Note 4)
0.6
1"
1/2"
3"
3"
0.7
1"
1/2"
3"
3"
1.3
1"
1/2"
3"
3"
1.7
1"
1/2"
3"
3"
2.4
1-1/4"
3/4"
4"
4"
Figure A High Altitude Label Location
3,000 FT. TO 12,000 FT.
HIGH ALTITUDE
UNIT EQUIPPED FOR
8.
Knight boilers comply with the requirements of CSD-1
Section CW-400 requirements as a temperature operation
control. The manual reset high limit provided with the
Knight is listed to UL353.
Installation & Operation Manual