American Water Heater (A)BCG38T500-8P Manuale Utente

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Servicing should only be performed by a Qualifi ed Service Agent
INTRODUCTION
INTRODUCTION
This Service Manual is designed to be an aid in servicing and troubleshooting American 
models (A)BCG385T500-8N/8P Series 120/121 commercial water heaters. The instructions 
and illustrations contained in this service manual will provide you with troubleshooting 
procedures to verify proper operation and to diagnose and repair common service 
problems.
This Service Manual does not replace or supersede the instruction manual that came with 
the water heater.  Always refer to the instruction manual that came with the water heater for 
complete installation instructions.  If the instruction manual is not available, copies can be 
obtained from the manufacturer’s web site or by calling the toll free phone number shown 
on the back cover of this service manual.
QUALIFICATIONS 
Servicing the products referenced in this manual requires the ability (in the field involved) 
equivalent to that of a Qualified Service Agent as defined by the American National Standards 
Institute (ANSI) below. Installation skills such as plumbing, air supply, venting, gas supply, 
electrical supply are required in addition to diagnostic and electrical testing skills.
ANSI Z223.1 2006 Sec. 3.3.83: “Qualified Agency” - “Any individual, firm, corporation or 
company that either in person or through a representative is engaged in and is responsible 
for (a) the installation, testing or replacement of gas piping or (b) the connection, 
installation, testing, repair or servicing of appliances and equipment; that is experienced in 
such work; that is familiar with all precautions required; and that has complied with all the 
requirements of the authority having jurisdiction.”
SERVICE WARNING
If you are not qualified (as defined by ANSI above) and licensed or certified as required by 
the authority having jurisdiction to perform a given task, do not attempt to perform any of 
the procedures described in this manual. If you do not understand the instructions given in 
this manual, do not attempt to perform any procedures outlined in this manual.
SERVICE REMINDER
When performing any troubleshooting step outlined in this service manual, always consider 
the wiring and connectors between components. Perform a close visual inspection of all 
wiring and connectors to and from a given component before replacement. Ensure wires 
were stripped before being crimped in a wire connector, ensure wires are crimped tightly in 
their connectors, ensure connection pins in sockets and plugs are not damaged or worn, 
ensure plugs and sockets are mating properly and providing good contact.
Failure to perform this critical step or failing to perform this step thoroughly often results in 
needless down time, unnecessary parts replacement, and customer dissatisfaction.