Installation manual
1
V1.3 · 09.2017 · Subject to modification
EXT-T24-D201 LCD Temperature Controller
Installation
Dimensions and wiring diagram
24VAC
L
N
RS
┴
Input
┴
~
TR
M
V+
┴
~
Modulating Control
Cooling/ Heating
2-10
V
Input
Remote Sensor
1. Open the back panel with screwdriver.
2. Connect the wires per the wiring diagram.
3. Secure the base with the screws provided.
4. Reattach the front panel.
1. On/ Off
2. Setpoint
Press “ ” button to display the set point, press “ ” to reduce the setpoint, press “ ” to increase the
setpoint, the setpoint step is 0.5
°C
, the setpoint will be confirmed automatically after 5 seconds.
3. Mode
With thermostat on, press “ ” to change the working mode – Cooling “ ”
，
Heating “ ”.
4. Sleep mode
Press “ ” button for 3 seconds till “ ” display, there is a number of count down in the center of LCD.
Use “ ” or “ ” to adjust the desired sleep time: the max. = 48 hours; thermostat will return to the
working status after 5 seconds, “ ” is flashing to start counting down. The setpoint should be replaced
by the sleep setpoint.
When thermostat get into Sleep function, “ ” will flash, press “ ” or “ ” to quit.
5. Exit setup menu
6. Keypad lock
Press “ ” and “ ” for 10 seconds till to “ ” display to activate, under this function, any keypad is
locked. Press “ ” and “ ” for 10 seconds till “ ” disappear to quit the function.
Setup menu
Press “ ” buttons to turn on; press “ ” again to turn off.
S
M
M
7. Backlight
Press “ ” to activiate the backlight. Avoid pressing “ ”, “ ” or “ ” to activate backlight as it will
change the setting at the same time.
S
M
