RG66000889-REV.OO 32
N°
Error mess.
Yellow LED located on singol
compressor board
Display
Buzzer
Alarm Relay
1
2
3
4
5
E1
E2
E3
E4
E5
blinks faster (1)
6
EE
blinks at normal frequency
7
8
9
10
11
12
FL
H1
L1
C1
F1
A1
blinks faster (1)
ON (2)
Energized
13
14
15
d1
r1
n1
blinks at normal frequency
OFF
Disenergized
16
17
18
19
20
H2
L2
C2
F2
A2
blinks faster (1)
ON (2)
Energized
Flashes
21
22
23
24
d2
r2
n2
Cn
blinks at normal frequency
cn flashing
OFF Disenergized
25
LO
blinks faster (1)
Flashes
ON (2)
Energized
(1) about twice a second
(2) whenever enabled
6 Infrared remote control unit
"µchiller" can be programmed via an optional infrared remote controller. Since each button on the remote control unit has got
a specific function, programming the controller is now a totally straightforward process.
Pressing either the - or + button will allow you to display the code of a specific parameter; press the same button/s once
again to display the value of the selected parameter, which can be modified by pr and - once again. 10 seconds
after you have modified the parameter value, the unit will automatically display the code of the modified parameter.
When programming "µchiller" via remote controller, the dedicated LED on the display (see the chapters 3 and 3.3) will blink.
If you do not press any button within 50 seconds after having started the programming procedure via remote control unit, the
unit exits the configuration procedure without storing the modified data.
Example of programming
It is necessary to modify the heating differential (r4)
1. press ENABLE button to operate the remote control unit; first parameter "/6" will be displayed;
2. press once either "+" or "-" relative to the heating differential; its code "r4" will be displayed;
3. press once again either "+" or "-"relative to the heating differential; the existing value of the parameter will be displayed;
4. press once again either "+" or "-" to increase/decrease the value until you reach the desired value;
5. save the modified value pressing PRG button; inlet water temperature will be displayed.
Whenever necessary, it is possible to stop the programming procedure pressing ESC button; once activated communication
from remote control unit (point 1), it is possible to view every parameter using
and
buttons and to modify it using SEL button.
