IC100CX SERVICE MANUAL
Manual IC100CX GB
Page 5 di 20
Upper display shows “rSt” label if the alarm can be reset, “NO” label if it is not
possible.
Use
o
or
n
keys to scroll the alarm list.
5)
Push “SET” key when “rSt” is lighted to reset the alarm; after a while the read-out
move to next alarm.
6)
To exit the function menu push and release the “menu” key or wait the time-out.
The “menu” icon disappears.
Compressors And Pumps Working hours
Enter the function “menu”.
Use
o
or
n
keys to find on the lower display:
C1Hr (Compressor n°1 working hours),
C2Hr (Compressor n°2 working hours),
PFHr (Evaporator Water pump or supply fan working hours),
PCHr (Condenser water pump working hours).
The clock icon is lighted.
Reset Working Hours
1.
Enter the function “menu”.
2.
Use
o
or
n
keys to find on the lower display the C1Hr, C2Hr, PFHr or PCHr.
3.
Push “SET” key for 3 seconds: the upper display shows “0” indicating the reset.
4.
To exit the function menu push and release the “menu” key or wait the time-out.
The “menu” icon disappears.
How to Display the Delay Time Between Two Defrost
1.
Enter the function “menu”.
2.
Use o or n keys to find on the upper display the “dEF” label; the lower display
shows delay time between two defrost (minutes and seconds).
3.
The icon is flashing.
4.
To exit the function “menu” push and release the “menu” key or wait the time-out.
The “menu” icon disappears.
How to See the Alarm Log
1.
Enter the function “menu”.
2.
Use o or n keys to find “ALOG” label.
3.
Push “SET” key: the lower display shows the alarm code, the upper display shows
“n°” followed by the progressive number.
4.
With o or n scroll the alarm list.
5.
To exit from ALOG function push “menu” key or wait the time-out delay is
expired.
Memory capacity is 50 alarm structured in a FIFO list (first in first out). Each new alarm
will take the place of the oldest alarm contained in the list ( the read-out is ordered from
the oldest to the newest).
How to Reset the Alarm Log
1)
Enter the function “menu”.
2)
Use o or n keys to find “ALOG” label.
3)
Push “SET” key.
4)
Use o or n keys to find “ArSt” (Alarm reset) label on the lower display; the upper
display shows “PAS”.
5)
Push “SET” key and then enter the password value using o or n keys; confirm the
value pushing “SET” key.
6)
The ArSt label starts flashing for 5s, to confirm the alarm logging data is reset.
K
EYBOARD
F
UNCTIONS
How to See the Set Point Value
Push and release the “SET” key.
Lower display shows: “SetC” set point chiller;
“SetH” set point heat pump.
The upper display shows the value.
Note:
SetH is available only if configured for Heat Pump.
How to Change the Set Point Value
1)
Push and hold “SET” key (for about 3 seconds).
2)
The setpoint value is flashing.
3)
Use o and n
to increase or decrease the new value.
4)
Push and release “SET” key or wait the time-out to exit the programming.
How to See the real Set Point
When Energy Saving, Dynamic Set Point or Function For Units Without Water Storage
Tank are enabled is possible to see the real set point.
When the machine is running:
push “SET” key once: lower display shows “SetC” (setpoint chiller) or “SetH”
(setpoint heat pump) and upper display shows the value.
push “SET” key again:
- when “Energy Saving” is enabled the lower display shows “SEtS” (Energy
saving setpoint) and upper display shows the value.
- when “Dynamic Set” is enabled, the lower display shows “SEtd” (dynamic
set point) and upper display shows the value.
- when the function for units without water storage tank is enabled the lower
display shows “Setr” (real set point) and upper display shows its value.
- when two function above are both enabled, the lower display shows “Setr”
(real set point) and upper display shows its value.
R
EMOTE
ON/OFF
If a digital input is configured as remote on/off, it is possible to switch on or switch off the
unit.
The remote ON/OFF:
It has priority over the keyboard
The unit can be switched on and off by keyboard only if the digital input set
the unit switched on
When the digital input is disabled the instrument returns to its condition prior
to activation
It is possible to navigate the functions menu
The upper display visualizes “OFF” and the decimal LED will be flashing.
H
OW TO
D
ISABLE A
C
OMPRESSOR
A compressor can be disabled for maintenance; the unit continues to work normally but
only with one compressor.
How to disable a compressor:
1.
Access to the programming parameters mode.
2.
Set the parameter CO12 = 1 or CO13=1 (compressor 1 or 2 = OFF).
To enable the compressor set C011=0 or CO12= 0.
D
YNAMIC
S
ET
P
OINT
This function is useful to save energy or to use the unit during particular external air
temperature condition.
The setpoint is changed according to the external temperature or 4..20mA trasducer.
The Dynamic Set point function is enabled:
- if Sd01 = 1 and CF06 = 3 (Pb3 probe is configured as 4..20mA signal for dynamic set
point), or;
- if Sd01 = 1 and CF07 = 3 (Pb4 probe is configured as outside air temperature).
E
NERGY
S
AVING
It’s possible to change the setpoint for the Energy saving periods.
The activation can be:
weekly/daily; in this case is required a controller with RTC on board
by digital input configured as “Energy saving”
The setpoint during an Energy Saving period is:
Chiller: setpoint =SET+ES10 differential=ES11
Heat pump: setpoint =SET+ES12 differential=ES13
Daily Programming
It is necessary to set parameters ES03
ES09 to activate the Energy saving (one
parameter for each day of the week).
The value “1” enable the function for that day.
Eg: ES03 = 1 means that every Monday the Energy Saving is activated for all day.
Programmable timer (RTC is required)
It’s possible to activate the Energy Saving for a period of the day by setting the start time
end the end time.
ES01 Energy Saving start hour
ES02 Energy Saving stop hour
Eg: ES01 = 8.0 and ES02 = 10.0: Energy Saving is active from 8 to 10.0 for all the days
of the week.
Eg: ES01 = 23.0 and ES02 = 8.0: Energy Saving is active from 23.0 to 8.0 of the next
morning for all the days of the week.
Energy Saving is disabled if the parameters ES01 / ES02 are both “0”.
Energy Saving by Digital Input
The function is enabled when a digital input, configured as Energy Saving, is activated
by remote contact.
D
EFROST
F
UNCTION
The defrost cycle is enabled only if the following conditions are satisfied:
1.
the unit is working in heat pump mode (heat pump enabled by parameter CF28)
2.
the unit is air/air or air/water (CF01=0 or CF01=1)
