Monessen Hearth Direct Vent Gas Fireplace KHLDV SERIES - Manual (Page 6)

6 73D0024
PRE-INSTALLATION INFORMATION
INSTALLING ABOVE 2000 FEET
• In the USA, the appliance must be derated 4% for every 1,000 ft above 2,000 ft elevations. Where the heating value of
the gas has been reduced, these rules do not apply.
• In Canada, these appliances are certified for altitudes of 0 – 2000 ft, and must be de-rated by 10 percent for installations
between 2000 and 4,500 ft. (derate an additional 4% for every 1,000 ft. above 4,500 ft. elevations).
ORIFICE SIZES, PRESSURES AND BTUs
NATURAL GAS PROPANE GAS
Manifold Press: (W.C.) 3.5" Manifold Press: (W.C.) 10"
Maximum Supply Pressure 10.5" Maximum Supply Pressure 13"
Minimum Supply Pressure 4.5" Minimum Supply Pressure 11"
BEFORE YOU START
Read this homeowner manual thoroughly and follow all instructions carefully. Inspect all contents for shipping damage and
immediately inform your dealer if any damage is found. Do not install any unit with damaged, incomplete, or substitute parts.
Check your packing list to verify that all listed parts have been received. You should have the following:
• Fireplace (Firebox and Burner System)
• Rock
Wool
• Log Set
ITEMS REQUIRED FOR INSTALLATION
Tools: Building Supplies:
• Phillips Screwdriver • Framing materials
• Hammer • Wall finishing materials
• Saw and/or saber saw • Non-combustible finishing material or dura-rock*
• Pipe Wrench • Caulking material (non-combustible)
• Level • Fireplace surround material (non-combustible)
• Measuring Tape • Piping complying with local codes
• Electric Drill and Bits • Tee joint
• Pliers • Pipe sealant approved for use with propane/LPG
• Square (resistant to sulfur compounds)
* Only used if desired to cover painted face other than using tiles or marble. If tiles or marble are used around the face then
the non-combustible material is not needed.
Model Number KHLDV400 KHLDV500
Gas Type Natural Propane Natural Propane
Max. Btu/hr Input 40,000 40,000 50,000 50,000
Min. Btu/hr Input 28,500 30,500 35,500 38,500
Rear Orifi ce Size #35 (.110") #52 (.0635") #30 (.1285") #50 (.070")
Front Orifi ce Size #49 (.073") #56 (.0465") 2.3 mm #55 (.052")