Thermo Pride CLHS1-050P36N Installation And Operation Manual page 22

All installations and services must be performed by qualified service personnel.
2. Connecting The Exhaust Vent To The Inducer
a. The Exhaust Vent piping may exit the furnace thru either the top, left or right side as depicted in Figure
7. Upon selection of the location to exit the furnace, cut out the appropriate knock-out and install the
rubber grommet provided. The grommet should be installed from the inside so that the insulation is
captured between the flange of the grommet and the metal panel. All PVC connections inside the
cabinet should be sealed with silicone caulk to enable easy disassembly for future repairs.
b. If the Vent is going through the Top panel, connect a 2-inch 90° PVC street elbow to the flexible drain
adapter already installed on the inducer blower. Tilt the street elbow so it is installed at a 45° angle
from the vertical. Tighten the worm clamp on the flexible drain adapter to seal and hold the elbow in
place. Then connect a 2-inch 45° PVC street elbow to the previously installed elbow so that it points up
toward the top panel. Now a section of 2-inch PVC pipe can be installed through the rubber grommet in
the top panel into the 45° street elbow.
Figure 7: Required Exhaust Vent and Air Intake Piping
22