1.
Slide the union nut onto the elbow. The
union nut must include an embedded O-
ring. Ensure that the O-ring seal is in
place on the heat exchanger's stainless
steel outlet tube.
2.
Attach the elbow and union nut firmly
to the boiler's outlet tube, making sure
that you rotate the elbow sideways.
3.
Fill the condensate trap with water and
insert the trap into the hole of the metal
plate.
4.
Rotate the elbow, and tighten the union
nut, so that the elbow and condensate
trap are secured. Ensure the union nut O-
ring is included. Check for leaks.