Switching On The Unit; Use Of The Unit - Epta Freeblock R290 Installations-, Gebrauchs- Und Wartungsanleitung

and make the electrical connection , keeping in mind that the
cables is about 2 m long.
C) SWITCHING ON THE UNIT
Power up by entering the specific single-phase plug into the
electrical socket.
Set the operating temperature of the refrigeration cell as
desired. To visualise the set point, press and release the "set"
key. The label "set" appears; press the "set" key again to
visualise the value set. To change the value of the set point,
act on the up and down
ATTENTION: In the case of low-temperature refrigeration
installations, it is recommended to bring the refrigeration cell
to the operating temperature gradually so as not to create
excessive pressures that could damage the cell.
D) USE OF THE UNIT
ATTENTION: All FREEBLOCK units are designed so that the
user can gain access to all functions without intervening in any
way inside the unit. The manufacturer declines any
responsibility for damage caused to persons or things due to
interventions carried out by non-specialised personnel inside
the unit.
The user in carrying out the functions of monitoring and
changing functioning parameters must act exclusively on the
external instrumentation of the control panel represented in
Fig. 4.
D.1 DESCRIPTION AND FUNCTION OF THE
ELIWELL CONTROL PANEL
The functions of the control panel on board the refrigeration
cell represented in Fig. 4 are:

- SET Button
Keeping pressed for 5 seconds, it is possible to access the
instrument programming.

- UP Button
Button to increase settable values.
Pressing down for 2 seconds results in defrosting.

- DOWN Button
Button to decrease settable values.

- CELL LIGHT Button
Switching on is indicated by the inbuilt light.
 -
ESC Button
Button to exit the menu.

- ON / OFF Button
Button to switch the instrument on or off. In OFF mode, all
system functions are disabled, except the cell light button.
- Signal Ledl: The display includes leds are installed with
symbol and their definition indicated below:
Compressor or relay 1: ON for compressor switched on.
Flashing for delay, protection or actuation blocked.
Defrosting: ON for defrosting in course. Flashing for
manual actuation.
Alarm: ON for alarm active. Flashing for alarm silenced.
Fans: ON for fan functioning.
IMPORTANT: The electronic
programmed directly by the manufacturer according to
arrow keys within 15 seconds.
control instrument
optimum parameters. It is therefore recommended to not
modify these parameters without having previously consulted
with our offices so as not to cause a decrease in performance
of the unit and malfunctions.
To gain access to the functioning parameters of the instrument
by specialised personnel see the instructions attached to the
electrical control panel.
D.1.1 ELIWELL ALARM SIGNALS
The instrument foresees the possibility of setting and
signalling on the display some alarm conditions.
D.1.2 ELIWELL ALARM SIGNAL COMING
FROM A FAULTY PROBE
This alarm signal is directly visualised on the display of the
instrument:
E1 – Cell probe faulty
E2 – Defrosting probe faulty
E7 - Lack of communication between electronic panel and
keyboard .
The substitution of a faulty probe must be effectuated by
specialised technical personnel in the shortest time possible.
D.1.3 ELIWELL TEMPERATURE ALARM
SIGNAL
If the alarm threshold for the temperature is to be changed, it
is necessary to gain access to the "programming menu" of the
parameters:
HAL – Maximum temperature alarm. Exceeding this
temperature value, the alarm icon is tripped
LAL – Minimum temperature alarm. Dropping below this
temperature value, the alarm icon is tripped
When the alarm LED switches on, 12V DC is made available
simultaneously to the alarm terminals on the card (see
electrical wiring diagrams) to make any eventual signal
remote.
To silence the alarm press any key. In the case of a silent
alarm, the icon
D.1.4 SETTING THE ELIWELL INSTRUMENT
PARAMETERS
The instrument is programmed with the values indicated in the
table that follows. For interventions by specialised personnel
to change the functioning parameters, refer to the technical
sheet attached to the following booklet.
D.1.5 ELIWELL COPY CARD
The Copy Card is an optional electronic card that is connected
directly to the instrument by the TTL serial port. Gaining
access by the keyboard to the parameters of the FPr folder it
will be possible to record in the Copy Card the setting of the
instrument's parameters or download from the Copy Card the
information in another instrument. In the FPr folder are
contained two operations:
3. UPLOAD (UL): insertion of programming
parameters (from instrument to the Copy Card)
4. DOWNLOAD (DL): insertion of programming
parameters (from the Copy Card to the instrument)
On the display appears the letter "Y" if the operation was
effectuated correctly or "N" if not.
is
.
.
flashes.
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