c
n
e
p
t
r
o
n
PAGE 9
NEP04/03
www.hvacquick.com 877-711-4822
Control Equipment
PTC
program level organization: cont.
Push
MENU
again. The eighth program level mes-
sage (d l) will be displayed for 2 sec-
onds, followed by the
display type
shown in user mode. There are two choices: either
degrees Celsius (
0
C) or degrees Fahrenheit (
0
F).
To normally display the temperature setpoint in Cel-
sius, press the
up
or
down
button until ( C ) is
displayed. To normally
display the actual tem-
perature in Fahrenheit, press the
up
or
down
button until ( F ) is displayed.
Push the
ENTER
button to store this
parameter in
memory.
Push
MENU
again. The ninth program level mes-
sage ( C L ) will be displayed followed
by the
temperature calibration
adjustment
.
The
ptc's
temperature sensor is factory calibrated.
However you may wish to adjust this calibration, par-
ticularly if you are using an external temperature sen-
sor. To do this, simply measure the actual tempera-
ture in the room and compare it to the actual tem-
perature displayed by the ptc.
If, for example, the ptc was reading 2 degrees lower
than the actual temperature, set the temperature
calibration adjustment to -2.
Adjust the calibration value by pushing the
up
or
down
buttons.
When finished, push ENTER to store the calibration
value in memory.
This is the last programming step. To put the
ptc
thermostat back into
user mode
, push
MENU
once
again.
Note that if the ptc thermostat is left in program mode
the control section of the thermostat is not functional.
Therefore it is always a good idea to leave it in user
mode when you are finished programming.
Restoring the standard factory settings
If you wish to restore the standard factory settings on
the
ptc
, then follow these steps:
1)
turn off the power to the thermostat
. This may be
done by unplugging the
ptc
from the sub-base.
2)
push and hold down the menu, enter, and up
buttons at the same time
.
3)
turn the power back on to the ptc
(or plug it back
into it's sub-base).
The thermostat must be at this point, in the program
mode if the
MENU
button was held down for too long.
To get back into
user mode
, push and hold down the
MENU
button until you see the display show (C L).
Then release the
MENU
button, and
momentarily push the
MENU
button
once again.
9
8
