Smith XWH 150, Инструкция по эксплуатации

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MULTIVENTING SIDEWALL TERMINATIONS
When two (2) or more direct vent appliances are vented near
each other, each appliance must be individually vented (see
Figure 42). NEVER common vent or breach vent this appliance.
When two (2) or more direct vent appliances are vented near
each other, two (2) vent terminations may be installed as shown
in Figure 42. It is important that vent terminations be made as
shown to avoid recirculation of flue gases.
DO NOT use field-supplied couplings to extend pipes. Airflow
restriction will occur and may cause intermittent operation.
8. Cement appliance combustion air and vent pipes to the
concentric vent termination assembly. See Figure 41 for
proper pipe attachment.
9. Operate the appliance one (1) heat cycle to ensure
combustion air and vent pipes are properly connected to the
concentric vent termination connections.
Figure 41. Concentric Vent Sidewall Attachment
Figure 42. Concentric Vent and Combustion Air Termination