Benchmark 2.0 LN Installation, Operation & Maintenance Manual
CHAPTER 2 – INSTALLATION
Page 20 of 168 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0046_0J
06/18/2015 Phone: 800-526-0288 GF-123
EXHAUST
MANIFOLD
1/2” NPT
CONDENSATE
DRAIN
CONNECTION
HOUSE-
KEEPING
PAD
BOILER
RETURN
Figure 2-4: Condensate Drain Connection Location
2.6.1 Exhaust Manifold Condensate Drain
A condensate drain trap (part no. 24060) is shipped loose and must be installed at the rear of the
unit. The trap inlet and outlet contain tapped 3/4” NPT ports. The actual installation details for the
condensate trap will depend on the available clearances, housekeeping pad height/dimensions
and other prevailing conditions at the site. However, the following guidelines must be observed to
ensure proper condensate trap operation:
• The condensate trap inlet (Figure 2-5) must be level with, or lower than the exhaust manifold
drain port.
• The condensate trap must be supported to ensure that its base is level (horizontal).
• The trap must be removable for routine maintenance. AERCO recommends that a union be
utilized between the exhaust manifold condensate drain port and the trap inlet port.
While observing the above guidelines, connect the condensate trap inlet to the exhaust manifold
drain connection using the appropriate piping components (nipples, reducers, elbows, etc.) for the
boiler installation site. Connect as follows:
Condensate Trap Installation
1. At the condensate trap outlet, install a 3/4” NPT nipple.
2. Connect a length of 1” I.D polypropylene hose to the trap outlet and secure with a hose clamp.
3. Route the hose on the trap outlet to a nearby floor drain.
4. If a floor drain is not available, a condensate pump can be used to remove the condensate to
drain. The maximum condensate flow rate is 20 GPH. The condensate drain trap, associated
fittings and drain line must be removable for routine maintenance.
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