Integrated Filter Installation
When installing the adaptor rubber boot, note the following:
•Remove and discard the plastic cap from the outer clamshell housing (see figure 4A).
•To connect the heater to the air inlet, use the vent adaptor rubber boot provided in the base skirt. The adaptor rubber boot is designed for 3” venting (see figure 4B). Note: If there is a need for 2” venting, then use plastic pipe and fittings to transition down.
•Loosen the hose clamp at the adaptor rubber boot and slide the plastic piping into the adaptor rubber boot. With piping in place, tighten the hose clamp. Install a 3” x 3” x 3” TY drain/waste/vent fitting to trap airborne particulates (see figure 4C). Note: If piping has been previously cut with a saw, be sure to remove all burrs and plastic shavings from the piping before installing.
Figure 4A: Remove Plastic Cap
Outer Clamshell |
Housing With Filter |
Gas Piping |
Remove |
Plastic Cap |
Base Skirt |
Figure 4B: Adaptor Rubber Boot
Preventive Maintenance
The heater is designed to shut down if the pressure switch senses that the air inlet vent or the exhaust vent is restricted. In this case, the pressure switch will open and the heater will generate a
•Turn off the gas supply to the water heater at the manual gas
•To inspect the filter, loosen the hose clamp at the adap- tor rubber boot and slide the plastic pipe out and away from the adaptor rubber boot (see figure 4C).
•Remove the adaptor rubber boot containing the outer clamshell housing by turning clockwise approximately 1/2” (30.5 cm) and pulling off of the internal clamshell housing (see figure 4C).
•Using your fingers or a small flat blade screwdriver, remove the filter media from the outer clamshell hous- ing, handle carefully (see figure 4D).
•To clean filter, lightly tap the back of the filter support to dislodge any large debris. Smaller debris may be re- moved by using a vacuum cleaner. the filter media may be cleaned by dipping the filter media into a solution of warm soapy water and rinsing in clean water. Do not scrub, allow to air dry before reinstalling. Filter media may be cleaned on an average 2 to 3 times before replacing with a new filter media is required.
•Reinstall the filter media by doing the above steps in reverse order.
•Turn on the gas supply and reconnect power, refer to the operating instructions on front of the water heater. Verify proper operation of the water heater before leaving.
Note: The heater must never be operated without the filter media installed.
Push On &
Tighten Clamp
Adaptor Rubber
Boot
Outer Clamshell
Housing
Figure 4C: Air Inlet Piping
| Hose Clamp | |
Piped To |
| |
External Air |
| |
Supply |
| |
3” x 3” x 3” TY DWV Fitting |
| |
(Position Cure Slope Upward) | Adaptor Rubber Boot | |
| ||
Install A Small Portion | Outer Clamshell Housing | |
| ||
Of Pipe And A Pipe Cap | 3” Plastic Pipe | |
To Rest On Floor. | ||
|
Figure 4D: Filter Media
Filter Media shown inside the Outer Clamshell Housing
| NOTE: if found difficult to |
| reattach the outer clamshell |
Adaptor | housing to the internal clamshell |
housing - apply a thin layer of silicone | |
Rubber Boot | grease to the surface of the black rubber |
support of the Filter Media.
Outer Clamshell 
Housing
Remove
Filter Media
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