33
6.9
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.
•
Attach PVC tee provided with boiler and field sourced
piping to condensate drain at bottom of boiler. See
figure 6-18.
• Slope condensate drain pipe minimum 1/4" per foot
(21mm/m) away from boiler.
•
Use field source condensate pump if boiler located below
disposal point.
• Field source condensate neutralizing kit as required
by authority having jurisdiction or for environmentally
friendly condensate disposal.
FIGURE 6-18 Condensate Drain
(150-299 MBH shown)
6 - COMBUSTION AIR AND VENT PIPING
Condensate Tee
(field installed)
on condensate
drain pipe
Do not glue cap
on if used for dust
protection. End
must be left open.
Do not place in
environment with
temperatures
below freezing.
Condensate
outlet will block
if condensate
freezes.
PN 240011320 Rev. G 10/01/2021]
