AERCO BMK 6000 Dual Fuel - Manual (Page 114)

Benchmark 6000 DF Installation, Operation & Maintenance Manual
CHAPTER 7 – MAINTENANCE
Page 114 of 219 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0096_0B
03/21/2014
Ph.: 800-526-0288
GF-141
7.9 CONDENSATE DRAIN TRAP
The Benchmark 6000 contains a condensate trap (part no. 24060). The trap is located external
to the unit and attached to the drain pipe from the exhaust manifold, as shown in Chapter 2,
Figure 2-7. This trap should be inspected and cleaned in accordance with the maintenance
schedule shown in Table 7-1 to ensure proper operation. To inspect and clean the trap, proceed
as follows:
Condensate Drain Trap Maintenance Procedure
1. Disconnect the external condensate trap from the exhaust manifold by loosening the
thumb screw on the trap inlet shown in Figure 7-10.
2. Remove the connection on the outlet side of the condensate trap.
3. Loosen the four (4) thumbscrews securing the cover on the condensate trap. Remove the
cover.
4. Remove the float and float guide from the condensate trap.
5. Remove the O-ring from the trap. AERCO recommends that this O-ring be replaced
annually.
6. Thoroughly clean the trap and float. Also inspect the drain piping for blockage. If the trap
cannot be thoroughly cleaned, replace the trap.
7. After the above items have been inspected and thoroughly cleaned, replace the O-ring
(84017) with a new part.
8. Reassemble all piping and hose connections to the condensate trap outlet. Reconnect trap
to exhaust manifold drain by tightening the thumbscrew on the trap inlet.
Figure 7-10. External Condensate Trap
7.10 AIR FILTER CLEANING & REPLACEMENT
The Benchmark boiler is equipped with two (2) air filters (part no. 88014) which should be
cleaned and re-oiled every 12 months, or as needed if combustion air is dirty, and replaced every
24 months. The air filters are attached to a “Y” shaped duct connected to the inlet of the air fuel
valve as shown in Figure 7-11. To inspect/replace each air filter, proceed as follows: