Lochinvar CREST 102 Series - Ratings

Dual Fuel Supplemental Manual
Ratings
5
Crest
AHRI Rating
Model Number
Note: Change “N” to
“L” for L.P. gas models.
Input
MBH
(Notes 4 - 6)
Min Max
Gross
Output
MBH
(Note 1)
Net
AHRI
Ratings
Water,
MBH
(Note 2)
FB(N,L,D)0751 50 750 721 626
FB(N,L,D)1001 50 999 961 834
FB(N,L,D)1251 62.5 1250 1203 1043
FB(N,L,D)1501 60 1500 1443 1252
FB(N,L,D)1751 70 1750 1684 1461
FB(N,L,D)2001 80 1999 1923 1699
FB(N,L,D)2501 125 2500 2400 2087
FB(N,L,D)3001 150 3000 2883 2507
FB(N,L,D)3501 175 3500 3364 2925
FB(N,L,D)4001 333.3 3999 3843 3342
FB(N,L,D)5001 499.9 4999 4804 4177
FB(N,L,D)6001 600 6000 5766 5014
Other Specifications
Appliance
Water
Content
Gallons
Pipe
Size
Outlet
Pipe
Size
Inlet
Gas Inlet
Size
Air
Size
Vent
Size
(Note 3)
Weight
w/Water
(lbs.)
73 3" 3" 1 1/4" 6" 6" 1768
77 3" 3" 1 1/4" 6" 6" 1838
87 3" 3" 1 1/2" 6" 8" 1975
94 4" 4" 1 1/2" 8" 8" 2307
106 4" 4" 1 1/2" 8" 8" 2458
111 4" 4" 1 1/2" 8" 8" 2570
157 4" 4" 2" 8" 9" 3600
156 4" 4" 2" 10" 10" 3900
202 4" 4" 2" 10" 10" 4600
201 4" 4" 2 1/2" 12" 12" 5200
254 6" 6" 2 1/2" 14" 14" 5900
304 6" 6" 3" 14" 14" 6900
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 AHRI 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. Crest boilers require special gas venting. Use only
the vent materials and methods specified in the Crest
Installation and Operation Manual.
4. Standard Crest boilers are equipped to operate from sea
level to 4,500 feet only. The boiler will de-rate by 1.4%
for each 1,000 feet above sea level up to 4,500 feet.
5. High altitude Crest Models are equipped to operate from
3,000 to 12,000 feet only. e boiler will not de-rate up
to 5,500 feet and will de-rate by 1.6% for each 1,000 feet
above 5,500 feet. e operation given in this manual
remains the same as the standard boilers. A high altitude
label (as shown in FIG A.) is also axed to the unit.
De-rate values are based on proper combustion
calibration and CO
2
’s adjusted to the recommended
levels.
UNIT EQUIPPED FOR
HIGH ALTITUDE
3,000 FT. TO 12,000 FT.
IMG01026
Figure A High Altitude Label Location
6. High altitude Crest Models 4.0 and 5.0 will not de-rate up to
5,500 feet.
7. e high altitude Crest 6.0 model will de-rate by 2.0% for
each 1000 feet above sea level up to 5,500 feet.
8. For Crest Models 4.0, 5.0 and 6.0, installations above 5,500
feet contact the factory.
9. Ratings have been conrmed by the Hydronics Section of
AHRI.