6.11 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.
• Canada - CSA or ULC certified PVC/CPVC pipe, fittings and cement.
• No external trap needed.
• Connect condensate hose, hose clamps, and coupling to boiler drain trap as shown in figure 6-28.
• 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.
FIGURE 6-28 - Condensate Drain
240012485 REV A [12/30/2018]
NOTICE
Do not glue cap
on if used for dust
protection. End
must be left open
Condensate Tee
(Field installed)
on condensate
drain pipe
Do not place in
environment with
temperatures below
freezing. Condensate
outlet will block if
condensate freezes.
3/4" PVC (1.48/60 GA)
32