Upflow horizontal, left side down - alternate drain setup

What is going on

Alternate drain route using the RF000142 coupling for an upflow furnace on its left side.

Check in this order

1. Cut off and discard the 45 degree radius end of factory hose #2.
2. Fit the 90 degree radius end of hose #2 to the RF000142 drain outlet with a red clamp.
3. Insert the coupling into hose #2 and secure with a red clamp.
4. Cut hose #5 3 in from the non-grommet end, discard that section, and feed the cut end through the lower cabinet drain hole.
5. Insert a 100 degree elbow in the cut end of hose #5.
6. Connect hose #6 between the coupling and the 100 degree elbow with red clamps, cutting off excess tubing.
7. Move the left collector cap to the right (top) collector port.
8. Feed the non-grommet end of hose #11 through the upper cabinet drain hole and clamp it to the collector box with a silver clamp.
9. Clamp hoses to the trap with silver clamps, then secure the trap with the two removed screws.
10. Connect the field drain to the trap outlet per the field drain section.

More furnace guides

• Airflow lower than demanded, furnace runs on low stage when high stage is expected
• Alternate combustion air opening (upflow or horizontal)
• Alternate vent/flue location (upflow or horizontal left)
• Annual inspection checklist
• Auxiliary limit control (location and purpose)
• Auxiliary limit switch open (blower compartment)