2. Installation instructions
3. Wiring diagram
Room panel
X500
Main
controller
4. Technician settings
1
2
3
8
7
1
2
3
7
8
A B
C D
1
2
4
2
1
1
2
The ALT/X500 room panel is designed for wall mounting in the
room to be controlled.
It should be located where the occupant can easily read the
LCD display and use the controls.
If the built in temperature sensor is being used to measure
room temperature, the module should be placed where the
temperature is representative of the general room conditions.
General points to follow:
- Disconnect power to the main board before installing the unit.
- The standard height to install this unit is 1.5 meter (5 feet)
from the floor.
Installation procedure:
A. Separate the front panel from back panel by pressing
the tongue on the top and pulling the back panel out.
B. Line the back panel up against the wall or flat surface.
Install three screws as required.
C. Make electrical connections as shown on enclosed
electrical wiring diagram.
D. Install the cove to the back panel; first the two tabs on
the bottom and then the top tongue.
Push until tight against the wall.
Entering technician settings
Press the [On/Off] and [Mode] buttons simultaneously for
10 sec.
Press the [Mode] button to proceed to the next parameter.
Press the [Fan] button to return to the previous parameter.
Use the [+] and [-] buttons to select/adjust parameter
values.
Press the [On/Off] button or wait 30 seconds to exit
technician settings and return to normal display.
P01 – Selecting temperature sensor location
Using the [+] and [-] buttons select between:
“1” - Temperature readings from the panel (default)
“0” - Temperature readings from the main board (CTU)
P02 – Calibration of measured temperature (offset)
Press the [Mode] button to switch to parameter P02.
Using the [+] and [-] buttons adjust the offset.
Range: -6…+6ºC, default: 0ºC.
P03 – Set-point temperature display
Press the [Mode] button to switch to parameter P03.
Using the [+] and [-] buttons select between:
“1” - The set point temperature will flash during adjustment.
“0” - The word “SET” will flash during adjustment.
P04 – Measured temperature display
Press the [Mode] button to switch to parameter P04.
Using the [+] and [-] buttons select between:
“1” - Temperature display with decimal point (##.#).
“0” - Temperature display without decimal point (rounded
down).
Note: regardless of this setting, if the main board (CTU) does
not support decimal point, the panel will show the measured
temperature without decimal point.
P05 – Restore default parameter values
Press the [Mode] button to switch to parameter P05.
The figure “0” will appear on display.
Press the [+] button to change the figure to “1” and restore
parameters values.
The parameters values will reset after exiting technician
mode and returning to normal display.
Press the [Mode] button to go back to parameter P01.
Press the [On/Off] button or wait 30 seconds to exit
technician settings and return to normal display.
2. Installation instructions
3. Wiring diagram
Room panel
X500
Main
controller
4. Technician settings
1
2
3
8
7
1
2
3
7
8
A B
C D
1
2
4
2
1
1
2
The ALT/X500 room panel is designed for wall mounting in the
room to be controlled.
It should be located where the occupant can easily read the
LCD display and use the controls.
If the built in temperature sensor is being used to measure
room temperature, the module should be placed where the
temperature is representative of the general room conditions.
General points to follow:
- Disconnect power to the main board before installing the unit.
- The standard height to install this unit is 1.5 meter (5 feet)
from the floor.
Installation procedure:
A. Separate the front panel from back panel by pressing
the tongue on the top and pulling the back panel out.
B. Line the back panel up against the wall or flat surface.
Install three screws as required.
C. Make electrical connections as shown on enclosed
electrical wiring diagram.
D. Install the cove to the back panel; first the two tabs on
the bottom and then the top tongue.
Push until tight against the wall.
Entering technician settings
Press the [On/Off] and [Mode] buttons simultaneously for
10 sec.
Press the [Mode] button to proceed to the next parameter.
Press the [Fan] button to return to the previous parameter.
Use the [+] and [-] buttons to select/adjust parameter
values.
Press the [On/Off] button or wait 30 seconds to exit
technician settings and return to normal display.
P01 – Selecting temperature sensor location
Using the [+] and [-] buttons select between:
“1” - Temperature readings from the panel (default)
“0” - Temperature readings from the main board (CTU)
P02 – Calibration of measured temperature (offset)
Press the [Mode] button to switch to parameter P02.
Using the [+] and [-] buttons adjust the offset.
Range: -6…+6ºC, default: 0ºC.
P03 – Set-point temperature display
Press the [Mode] button to switch to parameter P03.
Using the [+] and [-] buttons select between:
“1” - The set point temperature will flash during adjustment.
“0” - The word “SET” will flash during adjustment.
P04 – Measured temperature display
Press the [Mode] button to switch to parameter P04.
Using the [+] and [-] buttons select between:
“1” - Temperature display with decimal point (##.#).
“0” - Temperature display without decimal point (rounded
down).
Note: regardless of this setting, if the main board (CTU) does
not support decimal point, the panel will show the measured
temperature without decimal point.
P05 – Restore default parameter values
Press the [Mode] button to switch to parameter P05.
The figure “0” will appear on display.
Press the [+] button to change the figure to “1” and restore
parameters values.
The parameters values will reset after exiting technician
mode and returning to normal display.
Press the [Mode] button to go back to parameter P01.
Press the [On/Off] button or wait 30 seconds to exit
technician settings and return to normal display.
