J&E Hall JEHSD-0400-B3-M-3, Technical Manual

Page: 19 / 44

Issue: 01.08.2020 Page 19
Commissioning
The User Terminal Interface – LCD Display
The user terminal can be used to perform all the operations allowed by the program, display the operating conditions of the unit
at all times, and set the parameters.
It can be disconnected from the main board, and in fact is not required for operation.
Button Functions
ALARM Displays the alarms
UP
If the cursor is in the home position (top left corner), scrolls up the screens in the same
group; if the cursor is in a setting field, and increases the value.
DOWN
If the cursor is in the home position (top left corner), scrolls down the screens in the same
group; if the cursor is in a setting field, and decreases the value.
ENTER
Used to move the cursor from the home position (top left corner) to the setting fields, in
the setting fields confirms the set value and moves to the next parameter.
PRG
Accesses the menu for selecting the group of parameters to be displayed/modified (access
to the parameters is confirmed by pressing the [Enter] button).
ESC
Used to move back to previous screen/sub-menu. Continuous pressing of the ESC button
will eventually return to the HOME screen.
Important Note:
All controller parameters are preset in the factory and are not accessible due to password protection. The only
settings which can be changed are the compressor setpoint (suction pressure), the refrigerant type and the
time/date. The fan setpoint is also preset but can be adjusted if required.