Dettson CC15-M-V, Installation Instructions And Homeowner'S Manual

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5. Use the MULTIPOSITION DRAIN TRAP, which
has only two ports.
6. Place the drain trap gasket on the drain trap.
7. Install the drain trap and screw in place with two
self-tapping screws to the furnace casing.
8. Reroute the ID blower drain tube from the ID blower
casing to the drain trap.
Starting from the ID blower use length (1)
3.75", 90° elbow and length (2) 5.5"
9. Reroute the condensate box drain tube from the
bottom of the condensate box to the drain trap.
Starting from the condensate box use length
(3) 5.5", 90° elbow and length (4) 3.25".
10. Prime the drain trap with water. This will ensure
proper furnace drainage at startup and will avoid
any recirculation of flue gas.
11. Connect the outlet of drain trap to the condensate
drain piping with a tee. Such a drain shall be in
compliance with local building codes.
12. The venting must be drained using a PVC 636
tee. Connect this tee to a P-trap and connect it
to your condensate drain. Commercially available
condensate trap exist for use with IPEX system
636. See figure 13.
4.4 VENTING DRAINAGE
All furnaces with horizontal exhaust vent piping must
have a PVC 636 drain tee assembly and trap installed
in the exhaust pipe as close to the furnace as possible.
4.5 MULTIPOSITION PRESSURE
SWITCH CONNECTION
The 3/16 stub just beside the drain of the condensate
box must be drilled or cut open. The black squared PVC
tubing of the multiposition pressure switch (-0.2 in w.c.)
must be connected to this stub. This tubing is furnished
with the furnace.
The pressure switch must now be electrically connected
in series with the low fire pressure switch (top) with the
brown jumper furnished in the part bag. See Figure 6
and wiring diagrams.
Figure 12 – Installation slope for horizontal
application
Figure 13 – Horizontal installation
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