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I Product Description
The FCM070, FCM090 and FCM120 are aluminum gas fi red condensing boilers designed for use in forced
hot water heating systems requiring supply water temperatures of 180°F or less. These boilers are designed for
installation on a wall, however they may be fl oor mounted using an optional pedestal kit available from U.S. Boiler
Company, Inc. This boiler may be vented vertically or horizontally with combustion air supplied from outdoors.
This boiler is not designed for use in gravity hot water systems or systems containing signifi cant amounts of
dissolved oxygen.
II Specifi cations
MODEL*
NO. OF
SECTIONS
MAXIMUM
INPUT
(BTU/hr)
MINIMUM
INPUT
(BTU/hr)
D.O.E.
HEATING
CAPACITY
(BTU/hr)
IBR NET
RATING
(BTU/hr)
AFUE (%)
WATER
VOLUME
(Gal.)
APPROX.
NET
WEIGHT
(lb)
FCM070 mono block 70,000 30,000 63,000 55,000 95.4 0.41 102
FCM090 mono block 90,000 30,000 80,000 70,000 94.5 0.41 102
FCM120 mono block 120,000 40,000 107,000 93,000 95.2 0.62 110
* Add suffi x “N” for natural gas and “P” for propane. Ratings are the same for both fuels.
U
sing 60/100mm Concentric Vent System Supplied with the Boiler................................................................25 in
.
U
sin
g
Optional 60/100mm Concentric Vent Components
:
F
C
M07
0
......................................................................................
3
2
f
t
F
C
M09
0
......................................................................................
3
2 ft
FCM12
0
......................................................................................
1
8
f
t
U
sing Approved 3” AL29-4C Horizontal Stainless Vent System and Optional Stainless Steel Vent Kit..........55 ft
See Vent Section for additional venting options and requirement
s
TABLE 2.3: MAXIMUM VENT LENGTHS
TABLE 2.2: SPECIFICATIONS
Figure 2.1: General Confi guration