Product Features; Gas Pressures; Gas Specifications; Ignition Controls - Monessen Hearth DBX24C Installation And Operating Instructions Manual

PRODUCT FEATURES

Fireplace
Screen
Control
Knob
Piezo
Ignition
On/Off Switch
Figure 1 -
Unvented Gas Heater
(Control Access Door Shown Open)
This vent-free fireplace must be mounted on the floor or
on the optional fireplace hearth.
OPERATION
This unvented gas heater requires no outside venting and
burns cleanly with high heating efficiency.
This zero-clearance unvented gas heater can be installed
against (or recessed into) any wall that is accessible to a
gas line.

GAS PRESSURES

Control Fuel
Regulator Pressure Nat.
Pilot Regulator Nat.
Max. Inlet Pressure Nat.
Min. Inlet Pressure Nat.
Regulator Pressure LP
Max. Inlet Pressure LP
Min. Inlet Pressure LP
33D4047
FP2507
VFS DBX controls
Manual &
T-stat Millivolt
4.0" w.c. 3.5" w.c.
n/a 3.5" w.c.
10.5" w.c. 10.5" w.c.
5.0" w.c. 5" w.c.
10.0" w.c. 10.0" w.c.
13.0" w.c. 13.0" w.c.
11.0" w.c. 11.0" w.c.

GAS SPECIFICATIONS

Model
4DFXNMC
4DFXPMC
4DFXNVC
4DFXPVC
3DFXNVC
3DFXPVC
DBX4NTC
DBX4PTC
NOTE: For LP models an external regulator is required
to reduce supply pressure to a maximum of 13" w.c.

IGNITION CONTROLS

FP507
Piezo ignitor allows ignition of the pilot without the use of
matches or batteries.
Manual control has four (4) positions:
OFF - All gas to the gas logs is shut off at the
IGN - Valve position to light/maintain a standing
ON - Valve position to turn ON/OFF log set with
LOW/HI - Variable position to control flame height
Thermostat control has three (3) positions:
OFF - All gas to the gas logs is shut off at the
IGN - Valve position to light/maintain a standing
LOW/HI - Variable position corresponding to desired

PILOT

The gas log heater is fitted with a specially designed safety
pilot light which senses the amount of oxygen available in
the room and shuts the gas log heater off if the oxygen level
begins to drop below a satisfactory level. The pilot can only
be relit when adequate fresh air is available.

THERMAL GENERATOR

The millivolt gas log pilot is fitted with a millivolt generator
to provide power for remote activation.
DFX & DBX Series Vent Free Fireplaces
Fuel Control
Nat. Manual ,000
LP Manual ,000
Nat. Millivolt ,000
LP Millivolt ,000
Nat. Millivolt 6,000
LP Millivolt 6,000
Nat. T-Stat 10,000
LP T-Stat 10,000
valve.
pilot.
remote switch/thermostat.
(heat output). Both front and rear burners
are in operation to provide realistic glow
and yellow flame.
valve.
pilot.
temperature.
Input BTU/hr
Max. Min.
15,000
17,000
17,000
17,000
0,000
0,000
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