5
Selection: –5 to 5 (number of degrees F added to the out-
door air temperature reading to "calibrate" the tempera-
ture sensor)
Default: 0
OPTION 21 — KEYPAD LOCKOUT WITH PASS-
CODE — The thermostats are shipped with the keypad fully
accessible. This option allows the installer to limit access to the
keypad.
Selection: OF(F), 1, cd
OF — When set to OF, the user has full access to the key-
pad
1 — The user will only have access to modify the set points
(within the set point limits of Option 26 and Option 27). The
padlock icon will be displayed until the user presses and
holds the
up
and
down
buttons simultaneously for five
seconds to unlock the keypad. Once the keypad is unlocked,
the user has full access to the thermostat functionality. The
keypad returns to the locked condition after no buttons have
been pressed for two minutes.
cd — The entire keypad is locked and the padlock icon is
displayed. When the user presses a button the backlight
turns on to maximum brightness for 10 seconds and a "--" is
displayed in the temperature setting. The user must enter the
unlock code and press the
mode
button to unlock the ther-
mostat. The padlock icon will then turn off and the user will
have full access to the thermostat functionality. The thermo-
stat will lock after no buttons have been pressed for two
minutes.
If the option value is set to "cd," the
mode
,
up
and
down
buttons will work as follows:
1. Pressing the
mode
button once will display the flashing
Option number (21).
2. Pressing the
mode
button again and the option value
will flash OF, 1 or cd.
3. Pressing the
mode
button a third time will display the
keypad lock icon and the code entry values (see Fig. 4).
The
up
and
down
buttons will allow the selection of a
code value between 00 to 199.
4. Pressing the
mode
key again will return the focus to the
Option number (21).
In the event that the installer or user cannot remember the
unlock code for the thermostat, the code can be displayed if the
user presses and holds the
fan
and the
down
buttons simultane-
ously for 30 seconds. After the 30-second period, the unlock
code will be displayed for five seconds. This information does
not appear in any other user documentation.
Default: OF (off)
OPTION 26 — MINIMUM COOLING SET POINT —
This parameter establishes the minimum cooling set point that
the user is allowed to set. If the equipment type is Cool Only,
the lower limit is 55 F and the upper limit is 90 F. Otherwise,
the equipment type allows both heating and cooling operation,
so the minimum is 55 F plus Option 11 (deadband) and the
maximum is 90 F.
Selection: minimum = 55 F + deadband, maximum = 90 F
Default: 60 F (based on the adjustable deadband default = 5)
OPTION 27 — MAXIMUM HEATING SET POINT —
This parameter establishes the maximum heating set point that
the user is allowed to set. If the equipment type is Heat Only,
the lower limit is 50 F and the upper limit is 90 F. Otherwise,
the equipment type allows both heating and cooling opera-
tions, so the minimum is 50 F plus Option 11 (deadband) and
the maximum is 90 F.
Selection: minimum = 50 F, maximum = 90 F – deadband
Default: 85 F (based on adjustable deadband default = 5)
OPTION 35 — EMERGENCY HEAT MODE AVAIL-
ABILITY — This configuration allows the installer to turn on
or off the Emheat (emergency heat) mode. When set to ON, the
Emergency Heat mode is an available mode selection. When
set to OF, the Emergency Heat mode is not an available mode
selection. Not available if Option 01 is set to C (cool only).
Selection: OF(F), ON
Default: OF (off)
OPTION 39 — TEMPERATURE DISPLAY — This con-
figuration allows the installer to select either the set point tem-
perature or the space temperature to be displayed on the large
temperature display digits.
When the option St is chosen, the space temperature, as de-
fined by Option 05, is displayed using the traditional space
temperature digits on the LCD display. The current set temper-
ature is displayed using the normal set point display digits.
When SP is chosen, the current set point temperature is dis-
played using the traditional space temperature digits on the
LCD display. The normal set point display digits remain blank.
Space temperature is not displayed, but if a problem occurs
with the actual space temperature sensor, the characters "- -"
will be displayed instead of the Set temperature to indicate that
the temperature sensor has an error.
NOTE: The "Actual Temp" icon is not be displayed when the
sensor type is set to set point display (SP).
Selection: St, SP
Default: St (Space Temperature)
OPTION 99 — RESET TO FACTORY DEFAULTS —
This configuration allows the installer to return the thermostat
to its "out of the box" settings.
When this setting is first selected, 99 will be displayed in the
space temperature location and an initial value of 10 will be
displayed in the set point location.
To initiate factory defaults, the installer then presses the
mode
button until the 10 is flashing. The installer then presses
and holds the
down
button. While the
down
button is held, the
10 will count down from 10 to zero at a rate of 2 counts per
second (5 seconds total). When the value reaches zero, all dis-
play segments are turned on for five seconds and the factory
defaults are restored. If at any time during the countdown the
installer releases the
down
button, the countdown terminates
and the display returns to the starting value of 10.
Fig. 4 — Selection of Code Value
mode
fan
a33-9225
IMPORTANT: All configuration options, mode, fan and
set point settings which have been manually entered will be
lost and reset.
Summary of Contents for Comfort Pro 33CSCNACHP-01
Page 19: ......
