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3
3
3.1
INTERNAL UNIT CONTROL PANEL ( g. 27)
The pressure gauge, control panel and master switch are accessed by opening the front panel door.
The panel ( g. 27) includes the following devices:
A Pressure gauge. Displays the hydraulic system pressure, enables the water pressure inside the circuit to be checked. Values
must be between 1 and 2 bar.
B Control panel
C Internal unit master switch
D Front panel fastening screw
3.1.1
Description of control panel ( g. 28)
Led A: used when temperatures are displayed
Led B: decimal point
Led1:
ON (yellow)
Led2:
cooling (green)
Led3:
heating (red)
Led4:
pump on (green)
Led5:
current/past alarm (red)
Led6:
additional heater (yellow)
Led7:
timer activated (yellow)
Led8:
domestic water production active (red)
Led9:
ECO mode active (green)
Key1:
Key2:
Key3:
Key4:
Key5:
value and ey6
arrows to change the value; press ey6
for 60 seconds or by pressing both arrows simultaneously
Key6:
value
Key7:
Key8:
3.2
ACTIVATION AND USER FUNCTIONS
3.2.1
Activation ( g. 27, 28)
See gure 28 for the LEDs and buttons on the control panel.
To activate the unit, proceed as follows:
•
Power the internal unit and the external unit using the master switches.
•
Activate the internal unit's panel using the switch ( g. 27 ref. C) on the control panel
•
Press ey8
is activated. The operating mode is then displayed: CLG for cooling mode, HTG for heating and San for domestic water
production.
•
Press ey3
LED 2 lights up
Press ey7
3.2.2
Temperature/set menu
The temperatures measured by the internal unit probes can be checked and viewed and the water set-points set on the control
panel (in the temperature/set menu).
The temperatures and set-points that can be viewed on the display are:
•
t1 entering water temperature
•
t2 leaving water temperature
•
t3 domestic water tank sensor temperature
48
USE AND MAINTENANCE
up arrow; to scroll menu or modify displayed value
down arrow; like ey1
but in opposite direction. Press together with ey1
select cooling/heating/domestic water production only
con guration menu. For accessing user or service menus
temperature/set menu. Press this button to access the temperature values. Press the arrows to select the required
to view the value. To set the temperatures press ey6
For viewing the parameter value, modifying its setting (by pressing for three seconds) and con rming the new
Enables or disables the second set-point CS2 in cooling or HS2 in heating to save energy.
Press this button to switch the unit on or put it in standby
on the user interface to switch on yellow LED1
to select the operating mode; on rst pressing ey3
, then heating and red LED 3
, to activate Eco energy saving mode; when the green LED 9
to con rm. Quit the menu automatically by not pressing any buttons
and green LED
cooling mode is activated and the green
, and nally domestic water production and LEDs 2 and 3 switch off.
is on, Eco mode is active
to quit the current menu
for three seconds and the
which shows the circulation pump
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