Emergency Shutdown; Prolonged Shutdown - Watts AERCO Benchmark BMK 1500DF User Manual

Benchmark 750-3000 Operation, Service & Maintenance Guide-Latin America
SECTION 1: SAFETY PRECAUTIONS

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.
NOTE:
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 and safety device test
procedures, described in Section 4 and 5, respectively of the Benchmark 750 – 3000 Installation
and Startup Guide, OMM-0131 (GF-205-LA) 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.
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MANUAL GAS SHUT-OFF VALVE
VALVE
OPEN
Figure 1-1: Manual Gas Shutoff Valve
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Ph.: 800-526-0288
VALVE
CLOSED
OMM-0132_A
GF-206-LA-LA