John Wood Envirosense Power Direct Vent (May 2010 or later) - Manuel (Page 7)

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Thank You for purchasing this water heater. Properly installed and
maintained, it should give you years of trouble free service.
ABBREVIATIONS USED
Abbreviations found in this Instruction Manual include :
• ANSI - American National Standards Institute
• ASME - American Society of Mechanical Engineers
• AHRI - Air-Conditioning, Heating and Refrigeration Institute
• NEC - National Electrical Code
• CSA - Canadian Standards Association
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 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.”
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.
PREPARING FOR THE INSTALLATION
1. Read the entire manual before attempting to install or operate
the water heater. Pay close attention to the General Safety
Information on Page 4 thru Page 6. If you don’t follow the safety
rules, the water heater may not operate safely. It could cause
property damage, injury and/or death.
This manual contains instructions for the installation, operation,
and maintenance of the water heater. It also contains warnings
throughout the manual that you must read and be aware of.
All warnings and all instructions are essential to the proper
operation of the water heater and your safety.
Detailed installation diagrams are also found in this manual.
These diagrams will serve to provide the installer with a
reference. It is essential that all venting, water piping, gas piping
and wiring be installed as shown.
Particular attention should be given to the installation of
thermometers at the locations indicated in the piping diagrams
as these are necessary for checking the operation of the water
heater.
The principal components of the water heater are identified in
Features And Components on Page10 & Page 11 in this manual.
Use this reference to locate and identify various components on
the water heater.
See the Installation Checklist and Troubleshooting on Page 50.
By using this checklist the user may be able to make minor
operational adjustments and avoid unnecessary service calls.
However, service and diagnostic procedures should only be
performed by a Qualified Service Agency.
NOTE: Costs to correct installation errors are not covered under
the limited warranty.
2. Be sure to turn off power when working on or near the electrical
system of the water heater. Never touch electrical components
with wet hands or when standing in water.
3. The installation must conform to all instructions contained in
this manual and the local code authority having jurisdiction.
These shall be carefully followed in all cases. Authorities having
jurisdiction should be consulted before installation begins if
there are any questions regarding compliance with local, state
or national codes.
In the absence of local codes, the installation must comply with
the current editions of the CAN/CSA-B149.1, the Natural Gas
and Propane Installation Code and CSA C22.1, the Canadian
Electrical Code. All documents are available from the Canadian
Standards Association, 8501 East Pleasant Valley Road,
Cleveland, OH 44131.
4. If after reading this manual you have any questions or do
not understand any portion of the instructions, call the toll
free number on the back cover of this manual for technical
assistance. In order to expedite your request, please have the
full Model, Serial and Series number of the water heater you
are working with available for the technician. This information is
located on the water heater’s rating plate.
5. Carefully plan the placement of the water heater. Examine
the location to ensure that it complies with the requirements
in Locating The Water Heater on Page 14 and the Rough In
Dimensions on Page 8..
INTRODUCTION