BMK 5000-6000 Boiler OPERATION-SERVICE-MAINTENANCE GUIDE
SECTION 6 – MAINTENANCE
Page
54
of
136
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
OMM-0124_0A
05/03/2017
Ph.: 800-526-0288
GF-208
4.10 AIR FILTER CLEANING and REPLACEMENT
The Benchmark boiler is equipped with an air filter (P/N
59138
) 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 4-11.
To inspect/replace the air filter, proceed as follows:
AIR FILTER CLEANING and REPLACEMENT Instructions
1. Set the
ON/OFF
switch on the control panel, to the
OFF
position. Disconnect AC power
from the unit.
2. Remove the front panel from the unit by grasping the handles and pulling outward.
3. Refer to Figure 4-11 and locate the air filters attached to the WYE duct connected to the
air/fuel valve inlet.
4. Using a flat-tip screwdriver or 5/16” nut driver, loosen the clamp securing the filter to the
WYE duct at the air/fuel valve inlet. Remove the filter and clamp.
5. The filters may be cleaned in hot soapy water to remove oil and dirt. The filter should be
thoroughly dried and then sprayed with a light coating of oil, (NOT WD-40), prior to
reinstallation.
6. Each replacement air filter is equipped with its own clamp. Therefore, simply install the
replacement air filter on WYE duct and tighten the clamp with a flat-tip screwdriver or 5/16”
nut driver.
7. Replace the front panel on the unit and return boiler to service use.
Figure 4-11: Air Filter Location and Removal
AIR FILTERS
AIR/FUEL VALVE
BLOWER
WYE DUCT
AIR FILTER CLAMPS
GAS TRAIN
