Condensate Trap And Drain - Burnham K2WT Residential Installation, Operating And Service Instructions

VII. Venting
J. Condensate Trap and Drain Line
All condensate which forms in the boiler or vent system passes through the heat exchanger and out of a bottom
drain port which is connected to the condensate trap with a hose. This trap allows condensate to drain from the heat
exchanger while retaining flue gases in the boiler. This trap is an integral part of the boiler but must be connected to
a drain pipe as shown in Figure
the trap as shown in Figure 747. Note the following when disposing of the condensate:
1. If the corrugated condensate drain line must be extended, construct the extension from PVC or CPVC pipe.
Insert the hose provided with the boiler into the end of the extension as shown in Figure 7.47.
2. Condensate is slightly acidic. Do not use metallic pipe or fittings in the condensate drain line. Do not route the
drain line through areas that could be damaged by leaking condensate.
3. Some jurisdictions may require that the condensate be neutralized before being disposed of. Dispose of
condensate in accordance with local codes.
4. Do not route, or terminate, the condensate drain line in areas subjected to freezing temperatures.
5. If the point of condensate disposal is above the trap, it will be necessary to use a condensate pump to move the
condensate to the drain. In such cases, select a condensate pump that is appropriate for use with condensing
boilers. 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.
6. Do not attempt to move the trap from the location shown in Figure 7.47. Do not attempt to substitute another trap
for the one provided with the boiler.
7. The vent shown in Figure 7.47 must be left open for the trap to work properly.
WARNING
Asphyxiation Hazard. Failure to install the condensate drain in accordance with the
above instructions could cause flue gas to enter the building, resulting in personal injury or death.
NOTICE 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.
•
Use materials approved by the authority having jurisdiction.
VENT
ADAPTER
HEAT
EXCHANGER
HOSE FROM HEAT
EXCHANGER
SUMP PRESSURE
SWITCH TUBING
CONDENSATE
TRAP
CONDENSATE
TRAP CLEANOUT
TUBING CLAMP
(NOT SUPPLIED)
SOME COMPONENTS
IN CABINET OMITTED
FOR CLARITY
107672-03 - 5/18
J. Condensate Trap and Drain Line
7.47. A length of corrugated tubing is supplied with the boiler and is connected to
INTAKE AIR
ADAPTER
SUMP
PRESSURE
SWITCH
CONDENSATE
TRAP VENT
CONDENSATE
TRAP VENT
TUBING
CORRUGATED
CONDENSATE
TUBING FROM
TRAP
CONDENSATE
DRAIN PIPE
(NOT SUPPLIED)
Figure 7.47: Condensate Piping Arrangement
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