Air Filter Cleaning & Replacement - Aerco BENCHMARK 2500DF User Manual

Benchmark 2500DF-3000DF Installation, Operation & Maintenance Manual
Condensate Drain Trap Maintenance Procedure - Continued
3/4" NPT Port
Thumb
Screw
INLET
Adapter
Opening
O-Rings
(2)
NEWER STYLE TRAP
Figure 7-6. External Condensate Trap – Exploded View
7.8 AIR FILTER CLEANING & 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 inlet of the air fuel valve at the top of the
boiler as shown in Figure 7-7.
To inspect/replace the air filter, proceed as follows:
Air Filter Cleaning & Replacement Procedures
1. Set the ON/OFF switch on the control panel, 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 7-7 and locate the air filter attached 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
inlet flange of the air/fuel valve. Remove the filter and clamp.
5. The filter 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, such as WD-40, prior to
reinstallation.
6. Each replacement air filter is equipped with its own clamp. Therefore, simply install the
replacement air filter on inlet flange of the air fuel valve and tighten the clamp with a flat-
tip screwdriver or 5/16" nut driver.
7. Replace the top shroud on the unit and return boiler to service use.
Page 100 of 234
05/21/2014
CHAPTER 7 – MAINTENANCE
Thumb Screws
(4)
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Phone: 800-526-0288
Condensate
Trap O-Ring
Float Guide
INLET
Float
3/4" NPT Port
OUTLET
OLDER STYLE TRAP
Thumb Screws
(4)
Orifice
Gasket
OUTLET
OMM-0099_0A
GF-145