Emerson 90 SERIES 1F95-391 User Manual

Page 22

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20

normal program operation. To program
the number of days, press the

or

to set your temperature then

press and release the

SET

DAY

button and VACA HOLD TILL will be
displayed. The display will also show
DAYS (flashing) and the number 5. To
change the number of vacation days,
press TIME

FWD

or TIME

BACK

.

Press

or

to set the

temperature you wish to maintain
while away. While still in the vacation
mode, set the time you require your
program to resume by pressing SET

TIME

once. The current time will

display along with the word HRS
(flashing). Press TIME

FWD

to adjust

the time in 15 minute increments. You
may wish to select a few hours in
advance of your expected return to
allow time to reach the desired
temperature. Your thermostat is now

programmed to hold the temperature
you selected through your vacation for
HEAT, COOL, or AUTO. After 20
seconds the display will return to time/
temperature alternation, and will
display VACA. Pressing PROGRAM

RUN

cancels this feature and begins

running your normal program.

Keypad Lockout.
This security feature allows you to lock
out the keypad to prevent unauthorized
tampering with the program. Two
levels of security are available, Total
Keypad Lockout or Partial Keypad
Lockout.
Total Keypad Lockout
renders all buttons inoperative. Partial
Keypad Lockout allows only the
or

to operate for temporary

temperature overrides. It also limits the
temperature to the maximum heating
and minimum cooling temperatures
used in your program. This is

especially useful in buildings where
unscheduled events are common.
Anyone can change the temperature,
but only between the temperatures you
set and only for four hours or the
number of hours you specify if you set
up your Hold Till timing (see
Temporary Program Override, page
18). To select or deselect this feature,
refer to the USER CONFIGURATION
section (page 11, steps 1 and 2).

Thermostat Startup Up
After Power Loss
.
The user program and installation and
configuration settings are stored in
permanent memory indefinitely. After
a total power loss of 24V to the
thermostat for more than 4 hours the
clock and day settings will be lost.
When power is restored your thermo-
stat will maintain a heating tempera-
ture of 62

°

F and a cooling temperature

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