Emergency Shutdown; Prolonged Shutdown - Watts Aerco BENCHMARK 750 User Manual

Benchmark 750 – 1000 Boiler User Manual - INTERNATIONAL
A switch must be installed on the electrical supply line of the unit. The
switch must be installed in an easily accessible position to quickly and
safely 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.
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11/03/2016
CHAPTER 1 – SAFETY PRECAUTIONS
--WARNING! -
--CAUTION -
--CAUTION -
NOTE
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-0119_0A
GF-130-I