Air Filter Cleaning And Replacement - Watts AERCO Benchmark OMM-0121 Operation And Maintenance Manual

Benchmark 750-3000 Boiler Operation & Maintenance Manual
SECTION 4 – MAINTENANCE

4.8 AIR FILTER CLEANING and REPLACEMENT

The Benchmark boiler is equipped with an air filter which should be cleaned and re-oiled every
12 months and replaced every 24 months. The air filter is located at the air fuel valve inlet, as
shown in Figure 4-8.
TABLE 4-2: Available Air Filters
Benchmark Model Part Number
750, 1000 59139
1500, 2000 59138
2500, 3000 88014
To inspect/replace the air filter, proceed as follows:
Air Filter Cleaning and Replacement Instructions
1. Set the ON/OFF switch on the C-More Controller to the OFF position. Disconnect AC
power from the unit.
2. Remove the top shroud from the unit by grasping the top handle and lifting straight up. This
will disengage the shroud from the four (4) pins in the side panels.
3. Refer to Figure 4-8 and locate the air filter attached to the air/fuel valve inlet.
MANUAL SHUT-
OFF VALVE
GAS TRAIN
Figure 4-8: Air Filter Location (BMK 1500/2000 Shown)
4. Using a flat-tip screwdriver or 5/16" nut driver, loosen the clamp securing the filter to the
inlet flange of the air/fuel valve. Remove the filter and clamp.
OMM-0122_D • GF-206 • 5/9/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
AIR/FUEL VALVE
AIR FILTER
HOSE CLAMP
AIR FILTER
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