A.O. Smith Cyclone XL 100 Series, Руководство по обслуживанию

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INTRODUCTION INTRODUCTION
This Service Handbook covers the water heater model and series numbers listed on the front cover only. The instructions and
illustrations contained in this service handbook will provide you with troubleshooting procedures to verify proper operation and diagnose
and repair common service problems.
QUALIFICATIONS
QUALIFIED INSTALLER OR SERVICE AGENCY
Installation and service of this water heater requires ability equivalent to that of a Qualified Agency (as defined by ANSI below) in the
field involved. Installation skills such as plumbing, air supply, venting, gas supply and electrical supply are required in addition to
electrical testing skills when performing service.
ANSI Z223.1: “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 service handbook. If you do not understand the instructions
given in this service handbook do not attempt to perform any procedures outlined in this service handbook.
SERVICE REMINDER
When performing any troubleshooting step outlined in this service handbook 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.
TOOLS RECOMMENDED
• Instruction Manual that came with the water heater.
• All tools common to installation and service of commercial water heaters such as hand tools, screwdrivers, pipe wrenches etc.
• Long (8-10”) T handle 1/8 inch hex (Allen key) wrench for Combustion Blower removal and installation.
• Hex (Allen) wrench sizes: 5/32”, 1/8”, 1/4” and 5/16” - for Burner, and 24 Volt Gas Control Valve removal and installation.
• Digital manometer: Range -20.00 to +20.00” W.C. Resolution - 0.01” W.C. Required to test pressure switch performance and supply
gas pressure.
• Digital Multi Meter; capable of measuring:
• AC/DC Voltage.
• Ohms.
• DC micro amps (μA) - flame sensing current, see Flame Sensing Current Test (page 16).