FW


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Picture of the FW


The FW Series boiler is a 3-pass cast-iron boiler designed for use with light oil, gas, or a light oil-gas combination. The FW Series is designed for installation with either a standard chimney or a pressurized vent system. The boiler has a swing-open front door for easy service and inspection, and the stainless steel baffles are easily removed via the front door.

The FW comes in six sizes, with heating capacities ranging from 355 to 1,091 MBH. The burner is ordered separately, please consult the factory for more details.


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Air Conditioning Heating and Refrigeration Institute AHRI MemberConstructed and tested in accordance with ASME American Society of Mechanical Engineers Section Four
Type: Commercial
Heat Exchanger: Lead-Iron Alloy
Fuel: Oil, Gas (Natural or LP)
Input: Oil: 3.0 - 9.0 GPH
Gas: 433 - 1299 MBH
Combustion Efficiency: Oil: 84.7% - 85.0%
Gas: 82.2% - 82.5%
Venting: Chimney or Forced Draft
Ignition: N/A
Trim: Water
Domestic Water: N/A
Burner: Oil - Beckett
Gas - Power Flame
Configuration: Semi-Packaged
Notes: 3-Pass Scotch Marine design
Burner is ordered separately, consult factor for details

BOILER
MODEL
BURNER INPUT GROSS OUTPUT AHRI
NET RATING
(MBH)
COMBUSTION EFFICIENCY THERMAL EFFICIENCY APPROX
DRY WEIGHT
(LBS.)
WATER
CONTENT
(GAL.)
DRAFT
LOSS
(IN. W.C.)
OIL GPH GAS MBH MBH BHP OIL GAS OIL GAS
                         
FW-4 3.0 433 355 10.6 309 85.0 82.5 84.5 81.7 948 15.8 0.16
FW-5 4.0 577 478 14.2 416 85.0 82.5 85.3 82.7 1124 19 0.27
FW-6 5.0 722 600 17.9 522 84.9 82.4 85.8 83.2 1301 22.2 0.39
FW-7 6.0 866 723 21.6 629 84.9 82.4 86.1 83.5 1477 25.4 0.51
FW-8 7.5 1082 907 27.1 789 84.8 82.3 84.6 83.5 1654 28.5 0.62
FW-9 9.0 1299 1091 32.6 949 84.7 82.2 86.6 84.0 1831 31.7 0.75
                         
   
  1. Altitudes above 2,000 ft. - ratings should be reduced at a rate of 4% for each 1,000 ft. above sea level (U.S.A. only).
  2. Specifications and dimensions are subject to change without notice.
  3. Consult factory if an unusual piping or pickup requirements exist.
  4. The AHRI Net Water Ratings shown are based on a piping and pickup allowance of 1.15.
  5. Gross ratings have been determined under the AHRI provisions governing forced draft conditions (0.10 inch W.C. positive pressure at the boiler flue gas outlet).
  6. Firing rate in GPH based on having a heat value of 140,000 BTU/GAL.

BOILER MODEL

VENT CONNECT
DIAMETER
(INCHES)[F]

I=B=R VENT
DIAMETER*

(L)

FW-4 


26 
FW-5 


37 
FW-6 
10 

42 
FW-7 
10 

47 
FW-8 
10 
10 
52 
FW-9 
10 
10 
57 
       
  *I=B=R Vent Diameter size is the pipe size used from boiler vent connector (F) to termination of stub stack; Max. Height 15' (for forced draft firing only). For chimney venting consult National Fuel Gas Code.  
  1. All burners are LO-HI-OFF except Beckett CF-500 and CF-800 which are ON-OFF operation.
  2. Standard burner certification is U.L. special high risk insurance package. Available IRI, FIA, FM.
  3. Burners are shipped in a separate crate (when ordered).
  4. Burner Blast Tube Insertion 4-3/4".

FW Drawing 1

FW Drawing 2

FW Drawing 3


FW Literature

Date: 3/6/2013 12:33:11 PM
Size: 1.89 mb


FW Installation Manual

Date: 11/29/2010 2:23:56 PM
Size: 1.55 mb


FW Troubleshooting

Date: 1/15/2013 4:15:13 PM
Size: 54.55 kb


FW Burner Data

Date: 11/29/2010 1:44:27 PM
Size: 41.13 kb