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Benchmark 2500DF-3000DF Installation, Operation & Maintenance Manual
CHAPTER 1. SAFETY PRECAUTIONS
1.1 WARNINGS & CAUTIONS
Installers and operating personnel MUST, at all times, observe all safety regulations. The following
warnings and cautions are general and must be given the same attention as specific precautions included
in these instructions. In addition to all the requirements included in this AERCO Instruction Manual, the
installation of units MUST conform with local building codes, or, in the absence of local codes, ANSI
Z223.1 (National Fuel Gas Code Publication No. NFPA-54) for gas-fired boilers and ANSI/NFPASB for LP
gas-fired boilers. Where applicable, the equipment shall be installed in accordance with the current
Installation Code for Gas Burning Appliances and Equipment, CSA B149.1, and applicable Provincial
regulations for the class; which should be carefully followed in all cases. Authorities having jurisdiction
should be consulted before installations are made.
See pages 13 and 14 for important information regarding installation of units within the Commonwealth of
Massachusetts.
This Instruction Manual is an integral part of the product and must be maintained in
legible condition. It must be given to the user by the installer and kept in a safe
• Do not use matches, candles, flames, or other sources of ignition
to check for gas leaks.
• Fluids under pressure may cause injury to personnel or damage
to equipment when released. Be sure to shut off all incoming and
outgoing water shutoff valves. Carefully decrease all trapped
pressures to zero before performing maintenance.
• Before attempting to perform any maintenance on the unit, shut
off all gas and electrical inputs to the unit.
• The exhaust vent pipe of the unit operates under a positive
pressure and therefore must be completely sealed to prevent
leakage of combustion products into living spaces.
• Electrical voltages up to 480 VAC may be used in this
equipment. Therefore the cover on the unit's power box (located
behind the front panel door) must be installed at all times, except
during maintenance and servicing.
OMM-0099_0A
GF-145
CHAPTER 1 – SAFETY PRECAUTIONS
IMPORTANT
place for future reference.
WARNING!
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Ph.: 800-526-0288
Page 11 of 234
PR1: 05/21/2014
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