American Water Heater (A)BCL3100T2756NOX Instruction Manual download pdf (Page 18)

VENTING INSTALLATION

VENTING

THE INSTRUCTIONS IN THIS SECTION ON VENTING MUST

BE FOLLOWED TO AVOID CHOKED COMBUSTION OR

RECIRCULATION OF FLUE GASES. SUCH CONDITIONS CAUSE

SOOTING OR RISKS OF FIRE AND ASPHYXIATION.

This heater is not approved for direct vent installation.

Heater must be protected from freezing downdrafts.

Remove all soot or other obstructions from the chimney that will

retard a free draft.

Type B venting is required with these heaters. For typical venting

application see TECHNICAL DATA VENTING on pages 19 and 20.

This water heater must be vented in compliance with all local codes,

the current revision of the National Fuel Gas Code (ANSI-Z223.1)

and with the Category I Venting Tables.

If any part of the vent system is exposed to ambient temperatures

below 40°F (4.4°C) it must be insulated to prevent condensation.

• Do not connect the heater to a common vent or chimney with

solid fuel burning equipment. This practice is prohibited by

many local building codes as is the practice of venting gas

red equipment to the duct work of ventilation systems.

FIGURE 11. FIGURE 12.

• Where a separate vent connection is not available and the

vent pipe from the heater must be connected to a common

vent with an oil burning furnace, the vent pipe should enter the

smaller common vent or chimney at a point above the large

vent pipe.

MULTIPLE HEATER MANIFOLD

Figure 13 and tables on pages 19 and 20 should be used for

horizontally manifolding two or more heaters.

FIGURE 13.

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 51 52

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American Water Heater (A)BCL3100T2756NOX Instruction Manual Page 18