Part 6 Install The Condensate Drain - American Standard TCWH-199-AS Installation Start-Up Maintenance Parts

Tankless condensing water heater
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1. Due to its efficient design, the water heater produces condensation (water) as a normal by-product. This
condensation is acidic, with a pH level between 3 and 4. This condensation must be drained away from the
water heater and disposed in accordance with all local regulations.
2. Use corrosion-resistant materials to drain condensation. Use the included flexible plastic hose or ½" PVC
and CPVC drain pipe complying with ASTM D1785, F441, or D2665 may be used. Cement and primer must
comply with ASTM D2564 or F493. For Canadian applications, use CSA or ULC certified PVC or CPVC pipe,
fittings, and cement.
3. Local building codes may require an in-line neutralizer (
condensate. Follow all the installation instructions included with the neutralizer. If a neutralizer is installed,
periodic replacement of the limestone (or neutralizing agent) will be required. The rate of depletion of the
limestone varies with usage of the water heater. During the first year of water heater operation, check the
neutralizer every few months for depletion.
4. Route the drain line to a nearby floor drain (2),
laundry tub (3), or condensation pump (4).
NOTE: If a nearby laundry tub is used as a dis-
posal for wastewater from the washing machine,
draining the condensation into this tub allows
the soapy water discharge to neutralize the
acidic condensate.
5. An error will appear on the water heater display
if condensation line is blocked. The water heater
will not operate with a blocked condensate line.
It is extremely important to have this condition
repaired by a qualified service technician.
PART 6
Install the condensate drain
1
) to be installed (not included) to treat the
Figure 13 – Condensation Detail
31

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Tcwh-180-as

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