FSUV20/30 Vent Free Gas Heater
5
10001784
Safety Devices
Adequate combustion and ventilation air must be pro-
vided. The flow of combustion and ventilation air MUST
NOT be obstructed.
Provide adequate clearances around the air opening
into the combustion chamber and adequate accessibili-
ty clearance for servicing and proper operation. NEVER
obstruct any opening of the heater.
This heater is equipped with a pilot system featuring an
Oxygen Depletion Sensor (O.D.S.) shut-off device. All
unvented heaters are required to have this system. The
O.D.S. pilot will shut down the heater when there is no
provision for adequate combustion air.
Report any parts damaged in shipment to your dealer.
Gas Supply Pressures
This heater must be isolated from the gas supply piping
system by closing its individual manual shut-off valve
during any pressure equal to or less than 1/2 psig (3.45
kPa).
The heater and its individual shut-off valve must be
disconnected from the gas supply piping system during
any pressure testing of that system at test pressures in
excess of 1/2 psig (3.45 kPa).
Adequate clearances as listed below must be
maintained for servicing and proper operation:
Leave at least 36" clearance from front of heater to
combustibles.
Clearance to Combustibles
*Side ........................................................................ 12"
Combustible Floor ...................................................... 0"
Top ............................................................................ 36"
Back ........................................................................... 1"
Corner ...............................................0" to Back Edges
A) *Flat on wall corner
B) *Room divider
C) Island
D) Cross corner
E) Flat on wall
* A & B must maintain a 12"(305 mm) clearance
between the wall and side of window frame of fireplace.
** When placing the fireplace against a wall maintain
a minimum of 1" clearance between wall and back of
fireplace.
Fig. 2
Locating unit.
HS113
locating unit
12/02
HS113
Natural Gas
LP
Minimum Inlet Pressure
5.5" w.c.
11.0" w.c.
Maximum Inlet Pressure 14.0" w.c.
14.0" w.c.
Manifold Pressure
3.5" w.c.
10.0" w.c.
FSUV20 / FSUV30
Certified To
ANSI Z 21.11.2a-2003
Unvented Room Heaters
The installation of your Fireplace must conform
with local codes, or in the absence of local codes,
with National Fuel Gas Code, ANSI Z223.1/NFPA
54 latest edition.
(EXCEPTION: Do not derate this appliance for
elevations up to 4,500 ft. (1,370m). Maintain the
manifold pressure at 3.5" w.c. for Natural Gas
and 10" w.c. for LP gas)
Max.
Min.
Input
Input
Model
Fuel
Gas Control
B.T.U.H.
B.T.U.H.
FSUV20RN
Natural
Millivolt Hi/Lo
25,000
17,500
FSUV20RP
Propane Millivolt Hi/Lo
25,000
18,750
FSUV30RN
Natural
Millivolt Hi/Lo
35,000
24,500
FSUV30RP
Propane Millivolt Hi/Lo
35,000
26,250
Gas Specifications
High Elevations
Input ratings are shown in BTU per hour and are
certified without deration from elevations up to
4,500 feet (1,370m) above sea level.
Nuisance outages may occur at altitudes above
4,500 feet (1,370m) if dirt, dust, lint and/or cob-
webs are allowed to accumulate on burner and/or
ODS pilot. Monthly inspection and cleaning is
recommended for altitudes above 4,500 feet
(1,370m)
For elevations above 4,500 feet (1,370m), instal-
lations must be in accordance with the current
ANSI Z223.1/NFPA 54 and/or local codes having
jurisdiction.
Units: U41AM0, U41BM0,
Locating the Unit
f i r e - p a r t s . c o m
