6
57D0215
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 490IDVNV, 490IDVPV, 380IDVNV, and 380IDVPV 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: 490IDVNV, 490IDVPV, 380IDVNV, and 380IDVPV inserts 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
490IDVNV
490IDVPV
380IDVNV
380IDVPV
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
