AERCO BMK 1.5 LN July 2011 - Manual (Page 17)

CHAPTER 2: INSTALLATION
PR2: 05/09/12 Page 17 of 152
Benchmark 1.5LN Low NOx Boiler
Operation and Maintenance Manual
OMM-0041_0D
GF-120
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526-0288
NOTE
There are two slightly different types of condensate traps that may
be used in your configuration; an older style without built-in
adapter, and a newer style with a built-in adapter (see Figure 2-5).
Installation is the same (1/4” threads are inside built-in adapter on
newer style).
Refer to Figure 2-5 and install the trap as follows:
1. Install 3/4” NPT nipples in the tapped inlet and outlet of the condensate trap (part no.
24060).
2. Install a third 3/4” NPT nipple in the tapped condensate outlet of the exhaust manifold.
3. Connect the exhaust manifold nipple to the condensate trap inlet using a female union.
4. install a suitable support under the condensate trap and ensure that the trap is level.
5. Connect a length of 1” I.D. polypropylene hose (part no. 91030) to the nipple on the
outlet side of the condensate trap and secure it with a hose clamp.
6. Route the hose on the trap outlet to a nearby floor drain.
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 lines must be removable for routine maintenance.
Figure 2-5: Condensate Trap Installation: Older (left) and Newer (right) Style
2.7 GAS SUPPLY PIPING
The AERCO Benchmark 1.5 Gas Components and Supply Design Guide, GF-4030 must be
consulted prior to designing or installing any gas supply piping.
WARNING
NEVER USE MATCHES, CANDLES, FLAMES OR OTHER
SOURCES OF IGNITION TO CHECK FOR GAS LEAKS.
Many soaps used for gas pipe leak testing are corrosive to metals.
There-fore, piping must be rinsed thoroughly with clean water after
leak checks have been completed.