Monessen Hearth Vent-Free Fireplace Systems DBX24C* Installation Instruction

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33D4047
NATURAL GAS 
Manual and T-Stat Pressure
Regulator Pressure Setting   4 in. w.c.
Gas Inlet Pressure:
Max. 10.5 in.  w.c.
Min. 5 in. w.c.
PRODUCT FEATURES and SPECIFICATIONS
IGNITION CONTROLS 
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 valve.
 
IGN
  -  Valve position to light/maintain a standing pilot.
 
ON - 
Valve position to turn ON/OFF log set with remote switch/thermostat.
 
LOW/HI - 
Variable position to control flame height (heat output). Both front and rear burners are in operation to 
provide realistic glow and yellow flame.
Thermostat control has three (3) positions:
 
OFF - All gas to the gas logs is shut off at the valve.
 
IGN - Valve position to light/maintain a standing pilot.
 
LOW/HI  -  Variable position corresponding to desired temperature.
Continued
Model Number
Type
Gas Rate
Number of 
Burners
Max BTU/Hr
Min BTU/Hr
DFX24PMC
Manual
22,000
17,000
1
DFX24PVC
Milli-Volt
22,000
17,000
1
DFX32PMC
Manual
26,000
15,000
1
DFX32PVC
Milli-Volt
26,000
20,000
1
DBX24PTC
T-Stat
10,000
1
Milli-Volt Pressure
Regulator Pressure Setting  3.5 in. w.c.
Pilot Regulator
3.5 in. w.c.
Gas Inlet Pressure:
Max. 10.5 in. w.c.
Min. 5 in. w.c.
PROPANE / LPG
Note: An external regulator is required to reduce supply pressure to a maximum of 13" w. c.
T-Stat, Manual and Milli-Volt Pressure
Regulator Pressure Setting 
10 in. w.c. 
Gas Inlet Pressure:
Maximum 13 in." w.c.
Minimum 11 in. w.c.
Model Number
Type
Gas Rate
Number of 
Burners
Max BTU/Hr
Min BTU/Hr
DFX24NMC
Manual
22,000
15,000
1
DFX24NVC
Milli-Volt
22,000
17,000
1
DFX32NMC
Manual
26,000
15,000
1
DFX32NVC
Milli-Volt
26,000
20,000
1
DBX24NTC
T-Stat
10,000
1