GF-135
Esteem 399 Low NOx Boiler
Chapter 1
OMM-0089_0A
Installation, Operation & Maintenance Manual
Safety Precautions
Page
11
of
188
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
OMM-0089_0A
MC1 06/19/14
Ph.: 800-526-0288
If overheating occurs or the gas supply fails to shut off, close the manual gas shutoff valve
(Figure 1-1) located external to the unit.
Figure 1-1: Typical Manual Gas Shutoff Valve
1.3 PROLONGED SHUTDOWN
After prolonged shutdown, it is recommended that the startup procedures and the safety device
test procedures in Chapter 12 of this manual be performed, to verify all system-operating
parameters.
If there is an emergency, turn off the electrical power supply to the AERCO boiler and close the
manual gas valve located upstream from the unit.
The installer must identify the emergency shut-off device to those responsible for operation of
the boiler.
NOTE
The Installer must identify and indicate the
location of the emergency shutdown
manual gas valve to operating personnel.
