Emergency Shutdown; Prolonged Shutdown - Benchmark BMK 1500 User Manual

A THREE-POLE SWITCH MUST BE INSTALLED ON THE ELECTRICAL
SUPPLY LINE OF THE UNIT. THE SWITCH MUST BE INSTALLED IN AN
EASILY ACCESSIBLE
DISCONNECT ELECTRICAL SERVICE. DO NOT AFFIX SWITCH TO
UNIT SHEET METAL ENCLOSURES.
Many soaps used for gas pipe leak testing are corrosive to metals. The
piping must be rinsed thoroughly with clean water after leak checks have
been completed.
DO NOT use this boiler if any part has been under water. Call a qualified
service technician to inspect and replace any part that has been under
water.

1.2 EMERGENCY SHUTDOWN

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.
The Installer must identify and indicate the location of the
emergency shutdown manual gas valve to operating personnel.

1.3 PROLONGED SHUTDOWN

After prolonged shutdown, it is recommended that the startup procedures in Chapter 4 and the
safety device test procedures in Chapter 6 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 the unit. The installer must
identify the emergency shut-off device.
Page 12 of 184
Benchmark 1500 - 2000 Boilers
CHAPTER 1 – SAFETY PRECAUTIONS
WARNING
POSITION
CAUTION
CAUTION
NOTE
MANUAL GAS SHUTOFF VALVE
VALVE OPEN
Figure 1-1: Manual Gas Shutoff Valve
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Ph.: 800-526-0288
TO QUICKLY AND
VALVE CLOSED
SAFELY
OMM-0097_0C
GF-142