Dunkirk Helix VLT Vertical Laser Tube, Wall Hung Modulating Condensing Boiler - Manual (Page 31)

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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
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.
6 - COMBUSTION AIR AND VENT PIPING