Benchmark 1500 - 2000 Boilers
CHAPTER 7 – MAINTENANCE
OMM-0097_0E AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 95 of 182
GF-142 Ph.: 800-526-0288 10/01/2015
7.7 CONDENSATE DRAIN TRAP
Benchmark boilers contain a condensate trap (P/N 24441), located external to the unit and
attached to the drain connection from the exhaust manifold. The location on the unit is shown in
Chapter 2, Figure 2-6. 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 Trap Inspection and Cleaning
1. Disconnect the external condensate trap by loosening and then removing connections on
the inlet and outlet sides of the condensate trap (see Figure 7-6).
2. Loosen the four (4) thumbscrews securing the trap’s cover and then remove the cover and
the O-ring from under the cover.
3. Remove the float and then thoroughly clean the trap and float. Also inspect the drain
piping for blockage. If the trap cannot be thoroughly cleaned, replace the entire trap (P/N
24441).
4. Replace the float, install the O-ring (P/N 84017), and then replace the trap cover.
5. Reassemble all piping and hose connections to the condensate trap inlet and outlet.
Figure 7-6: External Condensate Trap – Cross-Section & Exploded View
(2)
Port
Trap O-Ring
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