5
RFSUV34 Vent-Free Heater
SAFETY DEVICES
Adequate combustion and ventilation air must be
provided. The flow of combustion and ventilation
air MUST NOT be obstructed.
Provide adequate clearances around the air
opening into the combustion chamber and ad-
equate accessibility 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.
Inlet Minimum
Inlet Maximum
Input Adjustment
Manifold Pressure
NATURAL
4.5" W.C.
10.5" W.C.
7.0" W.C.
3.5" W.C.
11" W.C.
13" W.C.
11" W.C.
10" W.C.
LP
Table 1. Gas supply pressures.
Table 2 Gas specifications.
GAS SPECIFICATIONS
Max. Input
Min.Input
Model
Fuel
Gas Control
B.T.U.H.
B.T.U.H.
RFSUV34RN
Natural
Millivolt Hi/Lo
30,000
21,000
RFSUV34RP
Propane
Millivolt Hi/Lo
30,000
22,550
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:
CLEARANCE TO COMBUSTIBLES
A
B
D
C
E
D
A) *Flat on wall corner
B) *Room divider
C) Island
D) Cross corner
E) Flat on wall
* A & B must maintain a 12"(305mm) clearance
between the wall and side of window frame of
fireplace.
*Side ........................................... 12"
Combustible Floor..........................0"
Top .............................................. 36"
Back ........................................... 1"
Corner..................0" to Back Edges
Leave at least 36" clearance from front of heater
to combustibles.
The installation of your Fireplace must con-
form with local codes, or in the absence of
local codes, with National Fuel Gas Code,
ANSI Z223.1 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)
