Joystick Button: "Menu; Led Status - Ferroli RHV R134a Instruction Manual

JOYSTICK BUTTON: "MENU"

Used to scroll through the menus by acting on the four positions (UP; DOWN; LEFT; RIGHT) pressing a single time; in particular:
• Position UP: scrolls through the menu
items upwards or increases the value of a
parameter.
• Position DOWN: scrolls through the
menu items downwards or decreases the
value of a parameter.
N.B. PRESSING THE (ENTER) BUTTON IN THE MIDDLE CONFIRMS THE COMMAND OR
ACCESSES THE DISPLAYED MENU.

LED STATUS

LEDs ( )
The first LED (green) indicates there is supply voltage:
• LED ON means that the controller is powered
• LED OFF means that the controller is not powered
LED (RX-TX)
The second LED (amber) indicates there is communication between the controller and the keypad:
• ON when there is communication
• OFF when there is no communication
LED ( )
The third LED (red) indicates there are alarms:
• ON if there is at least one active alarm
• OFF if there are no active alarms
• BLINKING if there are alarms that have ended but have not yet been manually reset.
• BLINKING without alarms to indicate that:
- function HPP (High Pressure Prevention) is active (RHV - RVW units)
- function ATC (Advanced Temperature Control) is active (RLA - LFL unit)
- function PRE-ALARM HIGH PRESSURE is active (RLA - LFL unit)
- function PRE-ALARM LOW PRESSURE is active (RLA - LFL unit).
The alarm reset procedure is explained in paragraph MONITORING SYSTEM - ALARMS
6
MONITORING SYSTEM - User interface
• Position LEFT (ESC): returns to the
previous menu.
• Position RIGHT: moves into the sub-
menu, confirms an action, enters edit-
ing a value or again confirms a changed
value.