Benchmark 750-3000 Boiler Operation, Service, Maintenance Guide - KOREA
SECTION 4 – MAINTENANCE
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52
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AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
OMM-0128_0B
07/17/2017
Ph.: 800-526-0288
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.
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.
AIR FILTER
AIR/FUEL VALVE
MANUAL SHUT-
OFF VALVE
GAS TRAIN
AIR FILTER HOSE
CLAMP
