Direct Vent, Optional Horizontal And Vertical Vent Kits; Screen Installation - American Standard TCWH-199-AS Installation Start-Up Maintenance Parts

Tankless condensing water heater
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2. Direct Vent, Optional Horizontal and Vertical Vent Kits.

Figure 9 – Direct Vent, Vent Terminations (With Optional Kits)
WARNING
must be within 1-foot of the appliance and the balance at 4-foot intervals on the vent pipe. Appliance venting
must be readily accessible for visual inspection for the first three feet from the appliance.

3. Screen Installation

After connecting the intake air and exhaust vent pipes, it is required to install the included screens into the
exhaust vent and intake pipe terminations to prevent damages to the unit due to blockages. See Figure 10 for
installation detail.
All vent pipes must be glued, properly supported, and the exhaust must be
pitched a minimum of ¼" per foot back to the appliance to allow drainage of
condensate. When placing support brackets on vent piping, the first bracket
27

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Tcwh-180-as

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