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11.0 ROUTING OPTIONS
Figures 16 to 20 on the following pages show the four acceptable installation positions with correct exhauster
orientation, condensate drainage, and pressure switch locations. The installer must also consider the following
services: gas pipe, electrical power, drain trap, intake and exhaust vents. Also consider the air conditioning
connections and drain, access to fi lter(s) and access to furnace and a/c for repair. Drains and traps of furnaces
installed in spaces subjected to freezing temperature must also be protected against
freezing.
The combustion air inlet fi tting is a 2" PVC Socket to Flange adapter. Choose the intake
location and remove the appropriate plastic cap. Install the adapter to the exterior panel
using the gasket (on the outside of the panel and the 4 screws on the outside of the panel).
Failure to apply gasket on cabinet exterior voids the warranty.
11.1
CONDENSATE DRAINS
The furnace may condense as much as 4-1/2 pounds of water per hour (approximately 2 imperial quarts, 2-1/2
U.S. quarts or 2-1/4 liters). It is necessary to make provisions for draining the condensate away. The furnace is
supplied with a drain trap assembly. See Figure 16 for possible locations of the drain trap.
Affi x the condensate trap assembly to the interior of the side panel in the blower compartment.
Three plastic drain hose clamps are provided in the parts bag. The large ones are used for securing the drain
hose to the front manifold cover drain outlet, and securing the drain hose to the 5/8" barbed fi tting on the
condensate trap assembly. The small one is used to secure the drain hose to the exhauster drain collar and
the 1/2" barbed fi tting on the condensate trap assembly.
The drain coupling on the exhauster will work better if the drain holes are pointed down about 15 degrees. The
drain hose supplied with the furnace is long enough to reach either side panel; however, it must be cut to fi t each
application. This is to prevent kinking in the drain lines.
NOTE: It is recommended that pliers be used to fi rmly clamp the plastic hose clamps.
11.2
PREPARATIONS FOR VENT AND DRAINING OPTION
1. Determine the most suitable vent and drain options for installation, see "EXHAUSTER ROTATION
INSTRUCTIONS & PRESSURE SWITCH MOUNTING" section.
2. Remove the 3-1/2" plastic exhaust vent cap (if required), and cover vent hole not in use. Install rubber
grommet (in parts bag) for 2" vent pipe. Connect vent pipe (field supplied). If using 1-1/2" or 3" vent, make
transition as close as possible to the unit and on a vertical section.
3. Connect 2" air intake pipe (field supplied). The exhaust vent must be supported appropriately prior to
it being fitted to the exhauster. Under no circumstances shall the exhauster bear any weight of the
venting system.
4. Remove the plastic air inlet cap and connect the 2" PVC air intake connector with the rubber gasket on the
outside of the unit using the 2" lock nut (in parts bag).
5. Remove the two plastic caps attached to the blower division, and the one attached to the side panel if
applicable.
6. Affix the condensate trap assembly to the interior or exterior of the side panel in the blower compartment
for upflow and downflow positions using the two screws provided in parts bag. For horizontal positions affix
the condensate trap assembly to the exterior side panels.
7. Make sure combustion compartment is fully sealed.
FIGURE 15
IMPORTANT:
CONNECT ½" TEE FITTING (FIELD SUPPLIED)
TO THE OUTLET OF THE CONDENSATE TRAP .
H16.0.3A
H16.2.4A
W415-2306 / C / 09.22.20
29
IOM
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