HeatStar ERXL-40 Instrucciones De Funcionamiento Y Manual Del Propietario página 17

Outside Combustion Air Supply
IMPORTANT: If the building has a slight negative
pressure or contaminants are present in the air, an
outside combustion air supply to the heaters is strongly
recommended.
FIGURE 13: Non-Pressurized Outside Air Supply Duct
Outside Air
Terminal
4" (10 cm)
Seal All Joints
6" (15 cm) to
12" (30 cm) Long
6" (15 cm) to
Outside Air
12" (30 cm) Long
Terminal
FIGURE 14A: Incorrect Gas Line Connection with Stainless
Steel Flex Gas Connector
Heater Movement
Heater Movement
NOTE:
air terminal
6" (15 cm) to
Vertical Outside Air
12" (30 cm) Long
Horizontal Outside Air
Heater Movement
Heater Movement
SECTION 6
Gas Piping
NEVER USE AN OPEN FLAME.
FIGURE 14: Gas Line Connection with Stainless Steel Flex Gas
Connector
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