30
CEILING: Frame out area around where PVC pipe is to penetrate ceiling. Cut a
2-3/8” diameter hole for 2” PVC in the ceiling and a corresponding hole in a
firestop to be made of a minimum of 18 gauge galvanized metal large enough to
cover the entire framed area. Cut PVC pipe so that it extends up past the fire
stop far enough to engage a PVC coupling that will rest on the fire stop and act
as a support. Seal between the pipe coupling and fire stop with high temperature
RTV silicone sealant (see Figure 13). Continue installing PVC pipe to exhaust
vent and combustion air intake termination as described previously.
Figure 13.
K. CONDENSATE DRAIN LINE AND TRAP ASSEMBLY
1. Figure 14 illustrates the typical drain
trap connection for a CMA/CMC furnace.
(Trap will be installed at factory.)
Connect condensate drain trap to
building drain system.
2. An optional condensate neutralizer kit
(P/n 320095) is available when gas
furnace condensate needs to be
neutralized (pH increased) prior to
discharge into drain system.
3. An optional mini condensate pump
(P/N 350224) is available. This pump
will fit into the vestibule of the furnace.
Instructions will be included with pump if
this option is utilized.
Figure 14.
Summary of Contents for CMA4-50D36N
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