OPERATING AND MAINTENANCE MANUAL
Chapter 7 - Electronic controller
iC 215 ÷ iC 780
35
The data in this manual are not binding and they can be modified by the manufacturer without notice.
Reproduction of this manual is strictly prohibited
EN
ENGLISH
7 . 8
H o w t o d i s p l a y t h e i n t e r n a l v a l u e s o f a c i r c u i t
NOTE
This chapter is not applicable to single circuit units.
In normal operating mode circuit no. 1 is always displayed by default.
To switch from one circuit to another use the
or
buttons to select an identification label within a circuit and press
the
button.
7 . 9
F u n c t i o n s m e n u b u t t o n “ M e n u ”
Access to Functions Menu enables the user to:
7 . 9 . 1
C r E n - E n a b l e o r d i s a b l e t h e s i n g l e c i r c u i t
With the
CrEn
submenu the operation of a single circuit can be disabled for maintenance purposes or to isolate it in the event
of malfunctions.
Proceed as follows:
•
Open the functions menu by pressing
•
With the
or
buttons select the function
CrEn
on the lower display;
•
Press
. The lower display shows
Cr1E
while the upper display shows
En
;
•
Use the
or
buttons to display the label
Cr1E
or
Cr2E
;
•
Press the
button for 3 seconds in correspondence with label
Cr1E
or
Cr2E
. The upper display shows
En
in flashing mode;
•
Use the
or
buttons to select label
diS
(circuit operation disabled) or
En
(circuit operation enabled);
•
Press
to confirm the set function and proceed to the next circuit (only the loads associated with the circuit
are disabled);
To exit the
CrEn
function and return to normal display mode press
or wait for the time-out.
In normal operation if one of the circuits is set to
diS
the lower display shows a flashing label alternated with the parameter
shown at that time.
If circuit 1 is in
diS
mode the label shown on the lower display is
b1dS
= circuit 1 disabled.
If circuit 2 is in
diS
mode the label shown on the lower display is
b2dS
= circuit 2 disabled.
NOTE
Label b2dS is present only on units with two refrigerant circuits.
ATTENTION
The CrEn function is enabled also on single circuit units. If you proceed to disable the only circuit present on these
units, the unit will suspend its entire cooling capacity.
ALrM function
Display and reset active alarms (see 7.11.1).
Display and clear the alarms log (see 7.11.27).
Upload instrument parameters to the smart key (see 7.13).
Enable / disable operation of a single circuit
ALOG function
UPL function
CrEn function
COEn function
COSn function
Cond function
dF function
Enable / disable operation of a single compressor
Display and reset the number of starts of each compressor
Display and reset the running hours of the controlled loads
Display the percentage of operation of the proportional outputs for control of the
condensing fans speed
Display the percentage of operation of the proportional outputs (if present)
Display the time remaining before the start of the defrost cycle (heat pumps only).
uS function
Hour function
