Condensate Piping - Dunkirk DCBF-100 Manual

FIGURE 5-26 - Condensate Drain
Do not glue cap
on if used for
dust protection.
End must be left
open
3/4 " PVC
Do not place in
environment with
temperatures
below freezing.
Condensate
outlet will block
if condensate
freezes.
5 - COMBUSTION AIR AND VENT PIPING

5.11 Condensate Piping

• Use materials acceptable to authority having
jurisdiction. In absence of such authority:
• USA - PVC or CPVC per ASTM D1785/D2845
Cement or primer per ASME D2564 or F493.
• No external trap needed.
• Connect condensate hose, hose clamps, and
coupling to boiler drain trap as shown in figure 5-26.
• Connect condensate piping to 3/4" PVC as shown.
• Slope condensate drain pipe minimum 1/4" per foot
(21 mm/m) away from boiler.
• Support condensate pipe to eliminate any sages.
• Use field source condensate pump, designated for
use with condensing boiler, if boiler located below
disposal point.
• Condensate pump should have overflow switch.
Condensate from Boiler is slightly acidic and may
cause property damage if overflow.
• Field source condensate neutralizing kit as
required by authority having jurisdiction or for
environmentally friendly condensate disposal.
Manufacturer requires an air vent be used to
prevent condensate line vacuum lock.
29
NOTICE
240013375 REV A, [07/01/2021]