Navigation; Status Indicator Leds; Changing The Function Mode (Thce Only); Adjustment Of Summer, Winter And Antifreeze Set Points - RHOSS TCCE 135 Gebrauchsanweisung

I.3.6

NAVIGATION

By using the two keys on the control panel, it is possible to alter the
levels and parameters of the card. The diagram below shows the levels
which can be displayed and modified by the user. The remaining
parameters can be accessed only by authorized personnel by means of
a password.
Parameter Function
Coo
Cooling set point
HEA Heating set point
Remote summer/winter
H49
enablement
PSS Password (only authorised personnel)
I.3.7

STATUS INDICATOR LEDS

○ COMPRESSOR STATUS LED
• Off: the compressor is not running.
• On: the compressor is running.
• Flashing fast: delay timer in operation.
• Flashing slowly: defrosting.
○ PLATE HEAT-EXCHANGER ELEMENT LED
• Off: the heating element is switched off.
• On: the heating element is on.
I.3.8 CHANGING THE FUNCTION MODE (THCE
ONLY)
I.3.9 ADJUSTMENT OF SUMMER, WINTER AND
ANTIFREEZE SET POINTS
To change these parameters it is necessary to access the 4 levels
represented in the following way:
• press the MODE-UP and ON/OFF, RESET-DOWN keys
simultaneously to move down through the levels (from 0 to 4);
• press the MODE-UP and ON/OFF, RESET-DOWN keys simultaneously
for 2 seconds to move up through the levels (from 4 to 0).
Regulation
Default value
limit
÷
12.5°C (130 160)
7 ÷20 °C
9,5 °C (270)
÷
40°C (130 160)
34 ÷53 °C
42,5°C (270)
0
Press the MODE key.
The LED relating to the
currently active function mode
goes out, and the LED relating
to the function mode selected
lights up.
The compressor time delay
LED begins to flash.
After the time delay has
elapsed the LED remains lit,
indicating that the compressor
has started to run.
It may sometimes be necessary for the user to modify one of the
parameters to suit specific operating requirements. To make the
process clearer let us suppose we want to change the HEA parameter
(heating set point). The steps are as follows:
•
press the MODE-UP and ON/OFF, RESET-DOWN keys
simultaneously.
• The compressor, defrosting and heating element LEDs flash.
• The SET label is displayed.
• Use the UP/DOWN keys to select the label to be modified (in this
case SET).
○ press the MODE-UP and ON/OFF, RESET-DOWN keys
simultaneously.
• The display shows the label Coo.
• Use the UP/DOWN keys to select the sub-label to be modified (in
this case HEA).
○ press the MODE-UP and ON/OFF, RESET-DOWN keys
simultaneously.
• The value of sub-label HEA is displayed.
○ Use the UP/DOWN keys to change the value of the HEA parameter
(within the preset limits).
○ After setting the desired value press the MODE-UP and ON/OFF,
RESET-DOWN key simultaneously three times for 2 seconds.
• All the other available parameters may be modified using the same
procedure.
IMPORTANT!
Changing or adjusting machine function
parameters must be carried out with the utmost
care to avoid creating conflict with other parameter
settings.
For example, if you set the Coo parameter at 0°C, it is necessary to
also change the antifreeze set point parameter (which can only be
changed by authorised personnel in possession of the protection
password):
• A11 (antifreeze alarm setting) in order to prevent machine shutdown
triggered by the antifreeze protection, displayed by alarm E05.
Whenever the A11 parameter is assigned a value below 3°C it is
essential to use water mixed with a suitable percentage of ethylene
glycol.
I.3.10

ALARM SIGNALS

I.3.10.1 Main control panel alarms
The display of the control panel shows the alarm signals which may
occur in the unit. A list of alarms is shown below and the possible kind
of reset.
Alarm Alarm description
E01 High pressure 1 alarm
E02 Low pressure 1 alarm
E03 Compressor 1 thermal overload
E04 Fan thermal overload alarm
E05 Antifreeze block alarm
E06 ST2 sensor malfunction
E07 ST3 sensor malfunction
E13 Compressor 2 thermal overload
E40 ST1 sensor malfunction
E41 Water differential pressure switch alarm
32
SECTION I: USER
Press the ON/OFF, RESET-
DOWN key for 2 seconds. If
the alarm is properly reset,
the inlet water temperature
appears on the display. If
the alarm condition persists,
the alarm indication
reappears on the display.
Reset
Manual
Manual
Manual
Manual
Manual
Automatic
Automatic
Manual
Automatic
Manual