1.2.2 Symbols on the display
The display has three figures in green, plus the sign
and one decimal. It also shows the symbols of the
functions selected in orange (the alarm symbol is red).
Button
Colour
Meaning
LED permanently lit
LED flashing
-2-
Orange
Compressor operating *
Timing start-up
-7-
Compressor on call
-
-8-
Water pump operating
-
-9-
Fans operating
-
-10-
Defrost active
-
-12-
Red
Alarm activated
-
-13-
Orange
Cool cycle
-
-1-
Heat cycle
-
(*)
Operational compressor number
Button
Unit status
Pressing
-3-
Loads default values
Applies voltage when pressed
Returns to superior sub-group within programming area until output of same (ex‐
cept changes in E2PROM)
Press once
-6-
Access to Direct parameters
Press for 5 seconds
Selects a Direct parameter and shows its value / Confirms parameter changes
Press once
-3- + ‑6-
Parameter programming with password
Press for 5 seconds
-4-
Selection of higher parameter within the programming area
Press once or keep pressed down
Increase value
Press once or keep pressed down
Selection of heat function from standby position and vice versa (P6=1)
Press for 5 seconds
-5-
Selection of lower parameter within the programming area
Press once or keep pressed down
Reduce value
Press once or keep pressed down
Selection of cool function from standby position and vice versa (P6=1)
Press for 5 seconds
-4- + ‑5-
Manual alarm reset
Press for 5 seconds
Clears hour counters (within programming area)
Press for 5 seconds
-6- + ‑1-
Forced manual defrost
Press for 5 seconds
1
User manual
1.2
Operating instructions µC2 (YLHA 50, 60 and 80)
10
