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W8710A OPERATION

What The W8710A Does For You

How the W8710A Works

Your W8710A automatically checks your heating and
air conditioning system every time it cycles on.
Air sensors constantly send detailed information
about airflow, temperature and relative humidity to
the W8710A computer.
Your W8710A then compares the information it
receives with the standards set for your home.
Your W8710A checks and rechecks your system
thousands of times during the year to determine that
deteriorating operation is:
Starting to waste your energy dollars.
Jeopardizing your heating and cooling equip-
ment.
reducing your comfort.

How the W8710A Helps You Maintain Your Home

Each month, a report is sent to your service
company to verify that the W8710A and your system
are working correctly.
When the W8710A calculates that your system is
running at less than peak efficiency, its built-in
modem quickly transmits a diagnostic report to your
heating and cooling company service manager for
review.
A service call can be scheduled before the problem
becomes an emergency. (Some problems are as
simple as the report reminder of a dirty air filter and
that it is time to clean or replace the filter.)

How the W8710A Works With Your Telephone

W8710A detects when your phone line is in use:
When in use, waits until the line is clear before
transmitting an alert report.
W8710A connects to the central monitoring stations
to quickly send its alert report information:
When transmitting report, total time phone line
is busy is less than one minute.
Your service company receives you report within four
minutes of the W8710A detecting a heating or
cooling problem (if your phone line is not busy!).
If you pick up the phone while the W8710A is
sending out a report, you may briefly hear a clicking
noise as its modem is calling the toll-free 800
number to the central monitoring station.

Why You Need The W8710A

W8710A prevents equipment damage, wasteful
energy usage and loss of comfort.
Your service company professional technician
regular system servicing works with the W8710A to
keep you comfortable and save you money:
Routine maintenance of your heating and cool-
ing system.
Protection against home damage resulting from
extended power outage or extreme tempera-
tures.
Emergency notification of malfunctioning heat-
ing and cooling equipment, even in your
extended absence from home.