WARNINGS
Installation & Operating Instructions
DFX, DBX Vent-FreeFireplace Systems
Models DFX24C, DFX32C, DBX24C
33D4047
DFX & DBX Series Vent Free Fireplaces
CONTENTS
MHSC Fireplace
INSTALLER
IMPORTANT SAFETY INFORMATION
OWNER
DFX & DBX Series Vent Free Fireplaces
IMPORTANT SAFETY INFORMATION
CODES
GAS pressures
PRODUCT FEATURES
Gas Specifications
operation
DFX24C/DBX24C
FIREPLACE and FRAMING DIMENSIONS
Framing Dimensions
DFX & DBX Series Vent Free Fireplaces
Do not install the heater
DFX & DBX Series Vent Free Fireplaces
Handle the gas log burner assembly by
Gloves are recommended when handling
33D4047
DFX & DBX Series Vent Free Fireplaces
ADEQUATE COMBUSTION AND VENTILATION AIR
COMBUSTION and VENTILATION AIR
33D4047
FIREPLACE INSTALLATION
Fireplace Location
DFX & DBX Series Vent Free Fireplaces
DFX & DBX Series Vent Free Fireplaces
FIREPLACE INSTALLATION
requirements identified in this manual
FIREPLACE INSTALLATION
The fireplace must be installed giving full
consideration to the clearance and height
33D4047
FIREPLACE INSTALLATION
DFX & DBX Series Vent Free Fireplaces
SECURING HEATER TO FLOOR OR HEARTH
3” Min
FIREPLACE INSTALLATION
33D4047
Do not use open flame to check for gas
FIREPLACE INSTALLATION
Connecting directly to an unregulated
DFX & DBX Series Vent Free Fireplaces
33D4047
ELECTRICAL INSTALLATION
Connecting Optional Wall Switch
DFX & DBX Series Vent Free Fireplaces
Check System Operation
ELECTRICAL INSTALLATION
DFX & DBX Series Vent Free Fireplaces
Connect Remote Receiver
Do not operate the unit without the screen
FINAL INSTALLATION
frame panel and canopy installed
DFX & DBX Series Vent Free Fireplaces
property damage or personal injury
LOG PLACEMENT
DFX & DBX Series Vent Free Fireplaces
the unit
Do not add additional rock wool
LOG PLACEMENT
Keep air gap between rear log and burner clean
Use only rock wool provided with log set
MANUAL & HI/LO CONTROL
DFX & DBX Series Vent Free Fireplaces
Check the pilot flame
Millivolt Control
OPERATING INSTRUCTIONS
FLAME APPEARANCE
2” - 4”
Checking burner flame
WHAT TO DO IF YOU SMELL GAS
for your safety read before lightinG
DFX & DBX Series Vent Free Fireplaces
OPERATING INSTRUCTIONS
TO TURN OFF GAS TO HEATER
MANUAL control lighting instructions
OPERATING INSTRUCTIONS
OPERATING INSTRUCTIONS
thermostatIC control lighting instructions
TO TURN OFF GAS TO HEATER
DFX & DBX Series Vent Free Fireplaces
TO TURN OFF GAS TO HEATER
Millivolt control lighting instructions
OPERATING INSTRUCTIONS
DFX & DBX Series Vent Free Fireplaces
MATCH lighting instructions
CLEANING AND SERVICING
OPERATING INSTRUCTIONS and MAINTENANCE
REMEDY
TROUBLESHOOTING
OBSERVED PROBLEM
POSSIBLE CAUSE
33D4047
REPLACEMENT PARTS
DFX & DBX Series Vent Free Fireplaces
DFXC/DBXC Firebox Parts
33D4047
REPLACEMENT PARTS
DFX24C Millivolt & Manual Control Burner Parts
DFX & DBX Series Vent Free Fireplaces
33D4047
REPLACEMENT PARTS
DFX32C Millivolt Burner Parts
DFX & DBX Series Vent Free Fireplaces
33D4047
REPLACEMENT PARTS
DFX & DBX Series Vent Free Fireplaces
DBX24C T-STATBurner Parts
Firebricks
OPTIONAL ACCESSORIES
DFX & DBX Series Vent Free Fireplaces
Brass Louvers
33D4047
OPTIONAL ACCESSORIES
DFX & DBX Series Vent Free Fireplaces
trim. Figure
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OPTIONAL ACCESSORIES
Black trim installation DFX32C
DFX & DBX Series Vent Free Fireplaces
Figure Slide Assembled Trim Over Top of Heater
OPTIONAL ACCESSORIES
DFX & DBX Series Vent Free Fireplaces
33D4047
Basic Warranty
LIMITED LIFETIME WARRANTY POLICY
Lifetime Warranty
Five Year Warranty