Westinghouse WER080C2X045 Installation Manual download pdf (Page 9)

WHL-003 REV. 7.14.14

Other methods of controlling thermal expansion are available. Check with the local water utility to determine if a check valve exists

in the cold water inlet line. Contact your installing contractor, water supplier, or plumbing inspector for additional information regarding

thermal expansion.

C. CONDENSATION

Condensation can form on the water heater when it is first filled with water, and may also occur with a heavy water draw and very cold

inlet water temperature. This condition is not unusual and will disappear as the water becomes heated. However, if the condensation

should continue, examine the piping and fittings for possible leaks.

D. INSULATION BLANKETS

Insulation blankets for external use on electric water heaters are not necessary with this water heater. An insulation blanket is meant to

reduce the standby heat loss encountered with storage tank heaters. This water heater meets or exceeds National Appliance Energy

Conservation Act standards with respect to insulation and energy factor requirements, thus making an insulation blanket unnecessary.

The manufacturer’s warranty does not cover any damage or defect caused by installation, attachment, or use of any type of energy

saving or other unapproved devices (other than those authorized by the manufacturer) into, onto, or in conjunction with the water

heater. The use of unauthorized energy saving devices may shorten the life of the water heater and endanger life and property. The

manufacturer disclaims any responsibility for any losses or injuries resulting from the use of such unauthorized devices.

If local codes require external application of insulation blanket kits the manufacturer’s instructions included with the kit must be carefully

followed.

In addition, pay careful attention to the following so as not to restrict the proper function and operation of the water heater:

 Do not cover the operating or warning labels attached to the water heater or attempt to relocate them on the exterior of the

insulation blanket.

 Do not apply insulation to the top of the water heater. This could interfere with the safe operation of the electrical junction box.

 Do not cover the jacket access panel(s) to the thermostat(s) and heating element(s), or temperature and pressure relief valve.

 Inspect the insulation blanket frequently.

Failure to follow these instructions could result in substantial property damage, severe personal injury, or death.

E. TEMPERATURE AND PRESSURE RELIEF VALVE

NOTE: For protection against excessive pressures and temperatures in this water heater, install temperature and pressure protective

equipment as required by local codes, but not less than a combination T&P valve meeting the requirements for Relief Valves and

Automatic Gas Shutoff Devices for Hot Water Supply Systems, ANSI Z21.22B / CSA 4.4-M99, by a nationally recognized testing

laboratory that maintains periodic inspection of production of listed equipment and materials. This valve must be marked with a

maximum set pressure not to exceed the marked maximum working pressure of the water heater. Install the T&P valve into the opening

provided and marked for this purpose on the water heater so that discharge water from the valve will not come in contact with any live

electrical parts.

To avoid water damage or scalding due to relief valve operation:

 Discharge line must be connected to relief valve outlet and run to a safe place of disposal. Terminate the discharge line in a

manner that will prevent possibility of severe burns or property damage should the relief valve discharge.

 Discharge line must be as short as possible and the same size as the valve discharge connection throughout its entire length.

 Discharge line must pitch downward from the valve and terminate at least 6” above the floor drain, making discharge clearly

visible.

 The discharge line shall terminate plain, not threaded, with a material serviceable for temperatures of 375

F or greater.

 Do not pipe discharge to any location where freezing could occur.

 No shutoff valve may be installed between the relief valve and heater or in the discharge line. Do not plug or place any

obstruction in the discharge line.

 Test the operation of the relief valve after filling and pressurizing the system by lifting the lever. Make sure the valve

discharges freely. If the valve fails to operate correctly, immediately replace with a new properly rated relief valve.

 Test T&P valve at least once annually to ensure the waterway is clear. If valve does not operate, turn the heater “off” and call

a plumber immediately.

 Take care whenever operating relief valve to avoid scalding injury or property damage.

FAILURE TO COMPLY WITH THE ABOVE GUIDELINES COULD RESULT IN FAILURE OF RELIEF VALVE OPERATION,

RESULTING IN POSSIBILITY OF SUBSTANTIAL PROPERTY DAMAGE, SEVERE PERSONAL INJURY, OR DEATH.

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Westinghouse WER080C2X045 Installation Manual Page 9

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