TMA54-EXT1
Specification & Installation Instructions
4
Operation Mode
Step Description
Display
1
At powering up, thermostat will light display and activate all LCD segments during 2 seconds.
Illuminating the LCD.
To illuminate the LCD, you just have to push onto any of the 3 buttons. LCD will light for 8 seconds.
Temperature display
In operation mode, thermostat will automatically display temperature read.
To change the scale between ºC and ºF, press on both
and
for 3 seconds.
2
Set point display and adjustment
To display the set point, press twice on the
or
button. Set point is displayed for 5 seconds.
To adjust set point, press on
or
while the temperature set point is displayed.
Note:
This value must respect the temperature range of the selected temperature sensor. Set to internal or
external at step #11A (for range, see Technical Data table on page 1).
Note: If set point adjustment has been locked,
symbol will be displayed.
3
Night set back (NSB) :
When thermostat is in night set back mode, NSB symbol is displayed, so set point for cooling and/or heating
are increased as per the setting made in programming mode.
If not locked, night set back can be derogated for a predetermined period by pressing onto any of the 3 buttons.
During period of NSB derogation the symbol will flash. If NSB does not flash, the derogation period is finished
or the Night set back derogation has been locked in programming mode.
4
Control mode selection :
To verify which control mode is set, press once onto the
button. Control mode will be displayed during 5
seconds.
To change of control mode, press on
or
while control mode is displayed. You can choose one of the
following:
Automatic Cooling or Heating
Cooling and Heating OFF
Cooling
only
Heating
only
Note: If control mode selection has been locked,
symbol will be displayed.
Typical Application
Thermostat for controlling an electric heater in a Make-Up Air unit.
Wiring Schematic
Recycling at end of life
At end of life, please return the thermostat to your Neptronic local distributor for recycling. If you need to find the nearest Neptronic
authorized distributor, please consult
www.neptronic.com
.
