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CONDENSATE DRAIN CONNECTIONUpflow/Downflow OrientationIn the Upflow or Downflow orientation, the condensate trap isinside the furnace casing. The condensate drain must be routedfrom the trap through the furnace casing. The condensate drain canbe routed through the left or right side of the casing. (The left orright side is as you are viewing the furnace.) The furnacecondensate drain can be connected to the Air Conditioningcondensate drain as shown in Fig. 13.NOTE: On narrower casings, it may be easier to remove thecondensate trap, connect the drain line components and re-installthe condensate trap. Read the steps thoroughly to familiarizeyourself with the required steps.For Right Side Condensate Drain:1. Remove the 7/8 -in. knock -out from the right side of thecasing. (See Fig. 12 .)2. Remove the pre-formed drain tube and two spring clampsfrom the loose parts bag.3. Slide a spring clamp 1 inch (25 mm) down the plain end ofthe drain tube.4. From inside the casing, insert the formed grommet end ofthe tube through the 7/8 -in. knockout in the casing.5. Pull the tube through the casing from the outside until it isseated in the knockout6. Attach the plain end of the drain tube to the outlet stub onthe drain trap. Secure the drain tube to the trap with thespring clamp.7. Slide a spring clamp over the open end of the drain tubeoutside the casing.8. Open the spring clamp and connect a field -supplied 1/2 -in.CPVC street elbow to the open end of the drain tube. (SeeFig. 14.)9. Connect additional 1/2 -in. CPVC piping to a condensatepump approved for use with acidic furnace condensate or toa code-approved drain.For Left Side Condensate Drain Connection:1. For left side condensate drainage, the drain line is routedfrom the condensate trap, behind the inducer and outthrough the left side of the casing. A pre-formed “Z” pipe isprovided in the loose parts bag shipped with the furnace.The “Z” pipe is long enough to extend out of the casing onthe 14 3/16-in. (360 mm) wide furnace. Larger casings willrequire a field supplied CPVC pipe and to extend the drainline out of the furnace.2. The “Z” pipe is connected to the condensate trap bymodifying the formed rubber drain tube. Connect the drainline as shown below:3. Remove the knock-out from the left side of the casing. (SeeFig. 12.)4. Install the grommet for the 1/2-in. CPVC drain line in the7/8-in. knockout in the casing.5. Remove the pre-formed drain tube, the offset 1/2-in. CPVCpipe and two spring clamps from the loose parts bag.6. Remove the formed grommet on the tube by cutting thetube along the vertical line located about 1 inch (25 mm)away from the formed grommet.(See Fig. 15.)7. Slide a spring clamp 1 inch (25 mm) down the plain end ofthe drain tube.8. With the bend in the tube oriented horizontally and plainend of the tube pointing away from you, insert the 1/2-in.CPVC pipe into the other end of the drain tube. Rotate thetube so the offset in the tube points away from you. Slide aspring clamp over the open end of the 1/2-in. CPVC tubeand secure the cut end of drain tube to the pipe. (See Fig.16)9. Prime the bare end of the pipe with CPVC primer.10. Route the offset pipe behind the inducer assembly andthrough the grommet in the casing, if the “Z” pipe is longenough. If the Z tube is not long enough, continue withinstallation.11. Attach the plain end of the drain tube to the outlet stub onthe drain trap. Secure the drain tube to the trap with thespring clamp.12. If the “Z” pipe does not extend through the casing, slide apiece of field supplied CPVC through the grommet in thecasing, otherwise, go to Step 17.13. Cement a 1/2-in. CPVC coupling to the end of the CPVCpipe.14. Apply cement to the end of the “Z” pipe connected to thecondensate trap.15. Connect the field-supplied CPVC pipe to the CPVC pipeconnected to the condensate trap.16. Cut off excess CPVC pipe outside the casing.17. Connect additional 1/2-in. CPVC piping to a condensatepump approved for use with acidic furnace condensate or toa code-approved drain.18. When a condensate pump is not used, slope the pipe awayfrom the furnace to allow for proper drainage.Horizontal Orientation1. In the Horizontal orientation, a field supplied accessorydrain trap grommet is required to seal the gap between thecasing and the condensate trap. The condensate trap outletextends 2 inches (51 mm) below the furnace casing. Toallow for servicing the trap, the condensate drain tube in theloose parts bag can be modified to make a coupler to allowfor future service of the condensate trap and drain line.2. Remove the knock-out for the condensate trap in the side ofthe casing.3. Install the drain trap grommet in the casing. If necessary,remove the trap, install the grommet and re-install the trap.4. Remove the pre-formed drain tube, the offset 1/2-in. CPVCpipe and two spring clamps from the loose parts bag.5. Remove the formed grommet on the tube to create an elbowor straight connector. (See Fig. 15.)6. Connect the cut tube to the outlet of the condensate trapwith 1 spring clamp.7. Slide the other spring clamp down the plain end of the draintube.8. Connect additional 1/2-in. CPVC piping to the open end ofthe tube.9. Slide the spring clamp down over the 1/2-in. CPVC pipe10. Connect additional 1/2-in. CPVC piping to a condensatepump approved for use with acidic furnace condensate or toa code-approved drain.11. When a condensate pump is not used, slope the pipe awayfrom the furnace to allow for proper drainage.59TP5A17