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Benchmark 3.0LN 24-Month Maintenance Kit 58015-04
Technical Instruction Document
TID-0135_0C
10
/12/2017
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, New York 10913
•
Phone: 800-526-0288
Page 14 of 20
6.1.6 External Condensate Trap Maintenance
NOTE
Benchmark 3.0LN boilers actually contain two condensate traps. One is
an integral part of the unit’s exhaust manifold. This trap is inspected and
serviced during the exhaust manifold inspection procedures described in
section 6.1.2. The second, external condensate trap (P/N
24060
), is
used on all Benchmark models. The inspection and servicing procedure
for the external condensate trap is described below.
NOTE
There are two slightly different types of external condensate traps (P/N
24060
) that may be used at your site; an older style without an inlet
adapter, or a newer style with a built-in inlet adapter (see Figure 10).
Maintenance is the same, except that the newer style does not need an
orifice gasket (Step 6).
For Benchmark 3.0 boilers, the external condensate trap (P/N
24060
) is attached to the
connecting manifold drain pipe using a special adapter (Figure 10). This trap should be
disconnected from the connecting manifold and serviced as follows:
1. If the trap is still attached to the connecting manifold, loosen the adapter thumb screw
and disconnect the trap from the manifold.
2. Remove the connections on the inlet and outlet sides of the condensate trap, as shown
in Figure 10.
3. Refer to Figure 10 and loosen the four (4) thumb screws securing the cover on the
condensate trap and then remove the cover.
4. Remove and discard the cover O-ring gasket currently installed in trap. It will be replaced
with the new O-ring included in the kit during reassembly.
5. Remove the float (with float guide attached) from the condensate trap.
6. On older-style traps, remove and discard the currently installed orifice gasket from the
trap. A new orifice gasket will be installed in step 9. The newer traps, with a built-in inlet
adaptor, do not use an orifice gasket, so this step may be bypassed for those traps.
7. Thoroughly clean the trap and float. Also inspect the drain piping for blockage. If the trap
cannot be thoroughly cleaned, replace the entire condensate trap (P/N
24060
).
8. Check the condensate drain pipe on the connecting manifold (Figure 11) to ensure it is
clear of blockage.
9. On older-style traps, replace the orifice gasket with a new gasket included with the kit
(P/N
81092
). Ensure that the replacement gasket is lying flat in the trap.
10. Replace the cover O-ring (P/N
84017
) with the new one provided in the kit.
11. Reinstall the float with float guide attached.
12. Replace the condensate trap cover and tighten the four (4) thumb screws.
13. Reassemble all piping and hose connections to the condensate trap inlet and outlet.
14. Reconnect the trap to the connecting manifold drain pipe using the trap adapter (Figure
11). Tighten the adapter thumb screw.
15. Ensure that the trap is horizontal and level to ensure proper drainage.