Ratings - Lochinvar 81 - 286 Installation And Operation Manual

Ratings

Model Number
Note: Change "N" to
"L" for L.P. gas models.
Min
KBN081 16
KBN106 21
KBN151 30
KBN211 42
KBN286 57
Maximum allowed working pressure is located on the rating plate.
NOTICE
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.
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.
Knight Boiler
I=B=R Rating
Gross
Input
Output
MBH
MBH
(Note 5)
Max
(Note 2,7)
80 72
105 94
150 135
210 190
285 260
Use only
Installation & Operation Manual
Other Specifications
Net
Boiler
I=B=R
Water
Ratings
Content Connections
Water,
MBH Gallons
0.6
(Note 3,7)
63
0.7
82
1.3
117
1.7
165
2.4
226
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.
Figure A High Altitude Label Location
Air
Water Gas
Size
Connections
(Note 4)
1" 1/2" 3"
1" 1/2" 3"
1" 1/2" 3"
1" 1/2" 3"
1-1/4" 3/4" 4"
UNIT EQUIPPED FOR
HIGH ALTITUDE
3,000 FT. TO 12,000 FT.
7
Vent
Size
3"
3"
3"
3"
4"