Installation; Required Ability; General; Contaminated Water - A.O. Smith LTE 66D Instruction Manual

REQUIRED ABILITY

Installation and service of this water heater requires ability equivalent
to that of a qualified installer or service agency (page 2) in the
field involved. Plumbing and electrical work is required.

GENERAL

The installation must conform with these instructions and the local
code authority having jurisdiction and the requirements of the power
company. In the absence of local codes, the installation must comply
with the latest editions of the National Electrical Code, NFPA 70 or
the Canadian Electrical Code CSA C22.1. The National Electrical
Code may be ordered from: National Fire Protection Association,
1 Batterymarch Park, Quincy, MA 02269. The Canadian Electrical
Code is available from the Canadian Standards Association, 8501
East Pleasant Valley Road, Cleveland, OH 44131.
Do NOT test electrical system before heater is filled with water, follow
the START UP procedure in the OPERATION section of this manual.
The principal components of the heater are identified in the
Features and Components illustrations on page 7.
MIXING VALVE USAGE:
Water heaters are intended to produce hot water. Water heated to
a temperature which will satisfy space heating, clothes washing,
dish washing, cleaning and other sanitizing needs can scald and
permanently injure you upon contact. Some people are more likely
to be permanently injured by hot water than others. These include
the elderly, children, the infirm, or physically/developmentally
disabled. If anyone using hot water in your home fits into one of
these groups or if there is a local code or state law requiring a
maximum water temperature at the hot water tap, then you must
take special precautions. In addition to using the lowest possible
temperature setting that satisfies your hot water needs, a means
such as a MIXING VALVE, should be used at the hot water taps
used by these people or at the water heater.
MIXING VALVES for reducing point of use temperature are available
and are to be set at a maximum of 125 degree F. Consult a qualified
installer or service agency. Follow all manufacturer's Instructions
for installation of these valves. Before changing the factory setting
on the thermostat, read the "Temperature Regulation" section in
this manual.

INSTALLATION

CONTAMINATED WATER

This water heater shall not be connected to any heating system(s)
or component(s) used with a non-potable water heating appliance.
Toxic chemicals, such as those used for boiler treatment shall not
be introduced into this system.

CIRCULATING PUMP

Field installed circulating pumps should be of all bronze
construction.

INSULATION BLANKETS

Insulation blankets are available to the general public for
external use on electric water heaters but are not necessary with
this product. The purpose of an insulation blanket is to reduce
the standby heat loss encountered with storage tank heaters.
Your water heater meets or exceeds the EPACT and ASHRAE/
IES 90.1 standards with respect to insulation and standby loss
requirements, making an insulation blanket unnecessary.
Should you choose to apply an insulation blanket to this heater,
you should follow these instructions below. Failure to follow
these instructions can result in fire, serious personal injury,
or death.
• Do not cover the temperature and pressure relief (T & P) valve
with an insulation blanket.
• Do not cover the instruction manual. Keep it on the side of the
water heater or nearby for future reference.
• Do obtain new warning and instruction labels for placement on
the blanket directly over the existing labels.

TEMPERATURE-PRESSURE RELIEF VALVE

This water heater is provided with a properly rated/sized and
certified combination temperature - pressure relief valve by the
manufacturer. The valve is certified by a nationally recognized
testing laboratory that maintains periodic inspection of production
of listed equipment of materials as meeting the requirements for
Relief Valves for Hot Water Supply Systems, ANSI Z21.22 • CSA
4.4, and the code requirements of ASME.
If replaced, the new valve must meet the requirements of local
codes, but not less than a combination temperature and pressure
relief valve rated/sized and certified as indicated in the above
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