FW Series

Description

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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FW_Series_Literature2

Product Brief

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

Product Ratings

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.)
BOILER MODEL	OIL GPH	GAS MBH	MBH	BHP	AHRI NET RATING (MBH)	OIL	GAS	OIL	GAS	APPROX DRY WEIGHT (LBS.)	WATER CONTENT (GAL.)	DRAFT LOSS (IN. W.C.)

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

	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). The AHRI Net Water Ratings are based on a piping and pickup allowance of 1.15. The manufacturer should be consulted before selecting a boiler for installations having unusual piping and pickup requirements, such as intermittent system operation, extensive piping systems, etc.

Product Dimensions

BOILER MODEL	VENT CONNECT DIAMETER (INCHES)[F]	I=B=R VENT DIAMETER*	(L)

FW-4	8	7	26
FW-5	8	7	37
FW-6	10	8	42
FW-7	10	9	47
FW-8	10	10	52
FW-9	10	10	57

	*AHRI 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. All burners are LO-HI-OFF except Beckett CF-500 and CF-800 which are ON-OFF operation. Standard burner certification is U.L. special high risk insurance package. Available IRI, FIA, FM. Burners are shipped in a separate crate (when ordered). Burner Blast Tube Insertion 4-3/4″.