7
T H E S M A R T S O L U T I O N F O R E N E R G Y E F F I C I E N C Y
ATA11U03
R e v. : 0 9 / 1 6 / 1 3
have full access to the thermostat functionality. The
thermostat 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) .
Default: OF (off)
OPTION 26 — MINIMUM COOLING SET POINT
— This parameter establishes the minimum cooling
set point that the user is allowed to set. Otherwise,
the equipment type allows both heating and cooling
operation, so the minimum is 60 F plus Option 11
(deadband) and the maximum is 90 F.
Selection: minimum = 60 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. The equipment
type allows both heating and cooling operations, 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 39 — TEMPERATURE DISPLAY
— This
configuration allows the installer to select either the
set point temperature or the space temperature to be
displayed on the large temperature display digits.
When the option St is chosen, the space temperature, as
defined by Option 05, is displayed using the traditional
space temperature digits on the LCD display. The current
set temperature is displayed using the normal set-point
display digits.
When SP is chosen, the current set point temperature is
displayed using the traditional space temperature digits
on the LCD display. The normal set point display digits
remain blank. Space temperature is not be 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 to be
displayed when the sensor type is set to Set Point
display (SP).
Selection: St, SP
Default: St (Space Temperature)
OPTION 40 — FAN SPEEDS
— This configuration
allows the installer to select the number of fan speeds
the system with operate with. When set to 1, the single
speed fan only will be available (LO). When set to 2, both
fan speeds will be available (LO & HI).
Selection: 1, 2
Default: 2
Check unit submittal for fan speeds available. Set
accordingly.
OPTION 99 — RESET TO FACTORY DEFAULTS
— This
configuration allows the installer to return the thermostat
to its “out of the box” settings. Not recommended
to use.
IMPORTANT:
All configuration settings, mode, fan and
set point settings which have been manually entered will
be lost and will require resetting.
When this setting is first selected, 99 will be displayed in
the space temperature location and an initial value of 10
Configuration
Figure 4: Selection of Code Value
