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INSTALLER SETUP
IMPORTANT
Make sure the installation of all other HVAC system
equipment is complete and turn the HVAC system
power on.
NOTE: The W8735D may not answer within the first 90 sec-
onds after applying power. This time period is used
to identify all the controls present on the bus. The
W8735D does not answer or dial-out if power is dis-
connected at the wall transformer.
IMPORTANT:
When interfacing with the W8735D, make sure to
always press firmly and fully on the telephone key.
Fast or light key presses can result in missed inputs.
IMPORTANT:
When dialing into the W8735D from a cellular tele-
phone, make sure reception is good. Faulty recep-
tion can result in missed key pad entries and
eventual time-outs and hang ups.
Initial Setting of the Pass Code
The W8735D is designed to automatically keep the pass code
in memory once set.
IMPORTANT
Do not change the pass code without the home-
owner present and aware of the new four-digit pass
code.
When connecting to the W8735D for the first time or if the
pass code has not been previously changed from the factory
setting (1, 2, 3, 4), the W8735D will direct the caller to the
pass code menu in order to change the pass code. Follow the
menu instructions:
1. Call into the W8735D using an outside line (typically an
installer would use a cellular telephone).
2. Once connected, use the telephone keypad to enter the
default four-digit pass code of 1 2 3 4 followed by the #
key on the telephone.
3. Use the telephone keypad to enter a new four-digit pass
code followed by the # key.
4. Use the telephone keypad to re-enter your new four-
digit pass code followed by the # key.
5. Write the pass code on the W8735D inside cover for
future reference in case the pass code is forgotten.
6. Once this step is complete, press the * key to return to
the Main menu.
7. Continue with the next section, "Initial Setting of the Cal-
endar and Time".
IMPORTANT
Do not leave the pass code unchanged from the fac-
tory default setting of 1-2-3-4. Resetting the pass
code to the factory default setting will prompt the
TAM to always ask you to reset the pass code on
every connection.
W8735D TELEPHONE ACCESS MODULE
Initial Setting of the Calendar and Time
NOTE: When powering up the W8735D, it is required that
the calendar date and time be setup if no EnviraCOM
thermostat with date and time functions is connected
on the bus.
NOTE: The W8735D is designed to automatically keep the
current time and day in memory once the calendar is
set.
1. From the Main menu, press 2 on the telephone keypad
and follow the voice prompts.
2. Use the telephone keypad to set the current time [in the
HHMM format] followed by the # key.
3. Press:
• 1 for AM
• 2 for PM
4. Use the telephone keypad to set the Month, Day, and
Year [in the MMDDYYYY format] followed by the # key.
5. After hearing the entered date and time, press # to exit
the Time & Date Menu if entry is correct, otherwise
press 0 to reenter correct date and time (see step 2 in
this section).
NOTE: To return to the Main menu, press the * key at any
time.
To exit the Main menu, press the # key.
OPERATION
Main Menu
Use the W8735D Main menu voice prompts to listen to the
thermostat settings and change thermostat settings, time and
date, pass code, alerts, call and ring options, limit settings,
and zone naming. See Table 3 on page 14 for the complete
W8735D voice menu tree.
• When the W8735D answers the call, the voice prompt
asks for a pass code:
"Welcome to the telephone access center. Please enter
your pass code followed by the # key."
You have two ways to respond to this voice prompt:
1. Gain full access
• Enter the four-digit pass code followed by the # key
to access the complete menu. See "Pass Code
Menu" on page 15.
Once the pass code is entered, the W8735D
announces any unacknowledged alerts, the date,
time, relative humidity, and lists the Main menu
selections.
2. Listen to Alert History
• If the contractor telephone number has been
previously set up (as described in the "Call and
Ring Menu" section beginning on page 17), you
can enter the last five digits of the contractor
telephone number followed by the # key to access
the Alert History. Once the five digits are entered,
the W8735D announces the Alert History.
• Enter the Main menu selection number.
13
69-2027—01
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