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SPECIFICATIONS GAS HEAT
Heat Input Type
Number of Gas Heat Stages
Standard Medium High
2 2 2
Gas Heating
Performance
Input - Btuh 1st Stage
2nd Stage
Output - Btuh 2nd Stage
Minimum air volume - cfm
Gas Supply Connections
30-60 40-70
2600
80% 80% 81%
3/4 in NPT 3/4 in NPT 3/4 in NPT
7 / 11 in. w.g.
1
HIGH ALTITUDE DERATE
NOTE - Units may be installed at altitudes up to 2000 feet above sea level without any modications.
At altitudes above 2000 feet units must be derated to match gas manifold pressures shown in table below.
At altitudes above 4500 feet unit must be derated 2% (130K through 180K) and 4% (240K) for each 1000 feet
above sea level.
NOTE - This is the only permissible derate for these units.
Refer to the Installation Instructions for more detailed information.
Heat Input Type Altitude Feet
Gas Manifold Pressure
in. w.g.
Input Rate (Btuh)
Natural Gas LPG/ Propane
1.6 / 3.4 4.4 / 9.7
1.6 / 3.4 4.4 / 9.7
1.6 / 3.4 4.4 / 9.7
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