Technical data

6.1 Control Panel
Item Function
Displays operating and fault
parameters.
SET POINT + key (increases
temperature SET POINT).
SET POINT - key (reduces
temperature SET POINT).
SET POINT display key.
Circuit 1 or 2 power key and LED
(Select circuit 1 or 2).
Circuit 1 or 2 compressor ON LED.
Circuit 1 or 2 high pressure alarm
LED. Indicates that high pressure
switch for circuit 1 or 2 has been
activated.
Circuit 1 or 2 low pressure alarm
LED. Indicates that low pressure
switch for circuit 1 or 2 has been
activated.
Voltage indicator LED. Indicates
that unit is connected to power
supply.
Circuit 1 or 2 anti-freezing alarm
LED. Indicates that water
temperature at evaporator outlet is
below safe limit.
External interlock alarm LED.
Warm weather mode start key and
LED. Starts the unit in the cooling
mode. Led lights up to indicate
operating in cooling mode.
Cold weather mode start key and
LED. Starts the unit in the heating
mode. Led lights up to indicate
operating in heating mode.
6.2 Unit Starting
To start the unit proceed as follows:
n
Set the master switch to the on (l) position to
energise the control panel.
Check that LED (voltage indicator) goes on.
Check that there are no active alarm signals.
n
Activate the two circuits for operation by
pressing the key for each circuit.
The unit is now in stand-by, the display will come on
and the LED's for the associated circuits will
flash for approximately 15 seconds before coming
on.
If necessary, set the water temperature as follows:
n Press the set point display key to display
the unit set point on the display.
n Change the unit set point using the key to
increase or the key to decrease the
temperature.
The unit set point is factory set to 12°C for warm
weather operation and 45 °C for cold weather
operation.
n
Press the key to start the unit in the cooling
mode or the key to start unit in the heating
mode.
The LED or the LED will go on.
Compressor operation will be indicated by
LED's for each circuit.
6.3 Water Temperature Display
To display the evaporator inlet water temperature
press the key.
To display the evaporator outlet water temperature
press the key.
6-2 035B40022-000
8888
+
-
SET
P
-P
H0
2
SET
+
-
IN
OUT