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6 57D0016
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.
• 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).
The IDV490NVC, IDV490PVC, IDV380NVC, and 380IDVPVC are equipped with a variable output gas control.
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"
NOTE: IDV490NVC, IDV490PVC, IDV380NVC, and IDV380PVCinserts work without any electrical supply.
Blower must be attached to 110/120 VAC.
INSTALLATION PLANNING
Plan for the installation of your insert. This includes determining the size of fireplace in which unit is to be installed, length of
venting to be used, and finishing details, and whether any optional accessories (i.e. wall switch, or remote control) are desired.
Consult your local building code agency to ensure compliance with local codes, including permits and inspections.
Model Number IDV490NVC IDV490PVC IDV380NVC IDV380PVC
NATURAL PROPANE NATURAL PROPANE
Max. Btu/hr Input 40,000 37,500 30,500 28,000
Min. Btu/hr Input 26,500 29,000 20,500 22,000
Orifice sizes (as shipped) #30 #50 #35 #53