INSTALLATION AND OPERATION MANUAL TWO STAGE CONDENSING GAS FURNACE CHX1-75N, CDX1-75N, CHX1-100N, CDX1-100N, CHX1-125N, CDX1-125N

All installations and services must be performed by qualified service personnel.
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IMPORTANT: Horizontal installations of CDX1-100 and CDX1-125 units must utilize the 2" x 3" dia. PVC
reducer as soon as the vent inlet exits the side casing of the unit. The CDX1-100 and CDX1-125 series
units must be vented with 3" dia. PVC. Refer to Figure 8.
b. After preparation of the 2” PVC pipe, use silicone type sealant on the 2” dia. PVC elbow (2" dia. PVC
tee for CDX1 horizontal applications) before inserting it onto the outlet of the inducer. Install a black
coated #8x3/4” sheet metal screw through the elbow and on the outlet flange of the inducer to secure
the elbow in place.
Figure 9
Figure 10
Figure 11
c. PVC cement the pre-cut 2” dia. PVC from step a. to the 2” dia. PVC elbow (2" dia. PVC tee for CDX1
horizontal applications). Attach to the drain tee assembly using the radiator hose and the 2 clamps
(supplied).