Section
18677 Rev. A 8/05
Outside Combustible Air supply
The Ener-Radiant XL heater is approved for installation with an outside air supply system. Some
compounds such as halogenated hydrocarbons or other corrosive chemicals in the air can be drawn
into the equipment and cause an accelerated rate of corrosion of some of the heater components. The
use of such chemical compounds near the enclosure should be avoided.
IMPORTANT: If the building has a slight negative pressure or contaminants are present in the air, on
outside combustible air supply to the heaters is strongly recommended.
For an outside air supply, a four (4”) inch O.D. single wall pipe may be attached to the heater. The
duct may be up to forty-five (45’) ft. maximum length or two (2’) ft. minimum length with no more
than two (2) elbows. (See General Requirements on page 21 for additional information). An outside
air supply should not be used with the draft hood venting configuration.
The air supply duct may have to be insulated to prevent condensation on the outer surface. The
outside air terminal should be securely fastened to the outside wall by drilling four (4) 1/4” diameter
holes in the outside flange; wood screws or bolts and expansion sleeves may be used to fasten
terminal.
FIGURE 16:
Non-Pressurized Outside Air Supply Duct
Outside Air Terminal: Use ACME #104 Enerco Stk. #19030
PCV Pipe, “Dryer Hose”, or equivalent may be used instead of standard vent pipe
16
Venting / Ducting
Section 5
Summary of Contents for HEATSTAR enerRADIANT ERXL-100
Page 2: ...Section 18677 Rev A 8 05...
Page 37: ...Section 18677 Rev A 8 05 Troubleshooting Guide Ener Radiant XL 35 Operation Maintenance 8...
Page 38: ...Section 18677 Rev A 8 05 36 Operation Maintenance Section 8...
Page 40: ...Section 18677 Rev A 8 05 FIGURE 24 Ener Radiant XL Burner Control Housing 38 Appendices 9...
Page 43: ...Section 18677 Rev A 8 05...
