Gas Pressure And Heat Input Charts; High Altitude Gas Requirement - ORTAL Lyric Front Facing Series Installation And Operation Manual

Gas Pressure and Heat Input Charts

The following table lists gas pressures and heat input values.
SERIES BURNER
70S
90
90H
70D
110 100
140 135

High Altitude Gas Requirement

For elevations above 2,000 feet, fireplace shall be re-rated 4% for each 1,000 feet above sea level.
38
Pressures
GAS TYPE
(Inch W.C.)
Min
Natural Gas (NG) 5.0
Propane (LP) 11.0
Natural Gas (NG) 5.0
Propane (LP) 11.0
Natural Gas (NG) 5.0
Propane (LP) 11.0
Inlet Manifold
Pressures
(Inch W.C.)
Max Min Max
10.0 0.9 4.0
13.0 0.9 10.5
10.0 0.9 5
13.0 0.9 10.8
10.0 0.9 3.5
13.0 0.9 10.7
Lyric Installation Manual: Built-in Models, April 2019
Heat Input
ORIFICE
BTU/hr
SIZE
Min Max
14,461 36,154 800
14,104 35,260 180+160
22,800 37,167 1200
22,900 28,541 260
23,300 43,715 1400
27,100 36,850 380