Crown Boiler BWC151 - Manual (Page 22)

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C. Condensate Trap and Drain Line
All condensate which forms in the boiler or vent system collects in the sump under the heat exchanger and leaves
the boiler through the condensate trap. This trap allows condensate to drain from the sump while retaining flue gases
in the boiler. On some BWC series boilers, this trap is supplied loose and must be installed as shown in Figure 1.23 . A
length of drain hose is supplied with the boiler and is connected to the trap as shown in Figures 1.23 and 1.24. Note the
following when disposing of the condensate:
If the condensate drain line must be extended, construct the extension from PVC or CP 1. VC pipe. Insert the hose
provided with the boiler into the end of the extension as shown in Figure 1.23 or 1.24, as appropriate.
Condensate is slightly acidic. Do not use metallic pipe or fittings in the condensate drain line. Do not route the drain 2.
line through areas that could be damaged by leaking condensate.
Some jurisdictions may require that the condensate be neutralized before being disposed of. Dispose of condensate 3.
in accordance with local codes.
Do not route, or terminate, the condensate drain line in areas subjected to freezing temperatures. 4.
If the point of condensate disposal is above the trap, it will be necessary to use a condensate pump to move the 5.
condensate to the drain. In such cases, select a condensate pump that is approved for use with condensing furnaces.
If overflow from this pump would result in property damage, select a pump with an overflow switch and use this
switch to shut down the boiler. Alternatively, if heat is a necessity, use the overflow switch to trigger an alarm.
Do not attempt to move the trap from the location shown in 6. Figure 1.23 or 1.24. Do not attempt to substitute another
trap for the one provided with the boiler.
The vent shown in Figures 1.23 and 1.24 must be left open for the trap to work properly. 7.
CAUTION
Boiler condensate is corrosive. Route condensate drain line in a manner such that any condensate leakage •
will not cause property damage.
Some jurisdictions may require that condensate be neutralized prior to disposal. •
WARNING
Failure to install the condensate trap and condensate drain in accordance with the above instructions could cause
flue gas to enter the building, resulting in personal injury or death.