Gf-120, Benchmark 1.5ln low nox boiler – AERCO BMK 1.5 LN October 2012 User Manual
Page 89
CHAPTER 7
MAINTENANCE
PR1: 10/18//12 AERCO International Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526-0288 Page 89 of 166
GF-120
OMM-0041 0E
Benchmark 1.5LN Low NOx Boiler
Installation, Operation and Maintenance Manual
Thoroughly clean the trap, float and gasket. Also inspect the drain piping for blockage. If
6.
the trap cannot be thoroughly cleaned, replace the trap.
After the above items have been inspected and thoroughly cleaned, replace the orifice
7.
gasket and float in the condensate trap and replace the trap cover.
Reassemble all piping and hose connections to the condensate trap inlet and outlet.
8.
Reconnect trap to exhaust manifold drain.
Figure 7-5: External Condensate Trap
7.8 SHUTTING THE BOILER DOWN FOR AN EXTENDED PERIOD OF TIME
If the boiler is to be taken out of service for an extended period of time (one year or more), the
following instructions must be followed.
Set ON/OFF switch on the front panel to the OFF position to shut down the boiler’s
1.
operating controls.
Disconnect AC power from the unit.
2.
Close the water supply and return valves to isolate boiler.
3.
Close external gas supply valve.
4.
Open relief valve to vent water pressure.
5.