Page 23
English
Control
6.4 Start-up
Once you have checked that the electrical connec-
tions are workmanlike, the unit can be started as fol-
lows:
– Hold down the ON-OFF button for 2 seconds to
turn on the regulator.
– If, upon start-up, only the decimal point appears on
the screen of the display, the regulator is in stand-
by mode.
–
“Cooling only” models:
h
Press the MODE button to restart the machine, the
water return temperature will appear on the dis-
play and the cooling LED will light up.
When the compressor LED starts blinking, there is
a demand for cooling capacity, and the timing is
in progress.
h
To stop the machine, press the MODE button
again.
h
When you press the MODE button, you obtain the
following sequence :
Standby or Cooling or Standby
–
“Heat pump” models:
h
For heat pump operation, follow the same proce-
dure adopted for operation in cooling mode.
h
To operate the machine in heat pump mode, press
the MODE button again; the Heating LED will light
up. To stop the machine, press the same button
again.
h
When you press the MODE button, you obtain the
following sequence:
Standby or Cooling or Heating or Standby
Do not switch from heating to cooling mode
suddenly; wait until the temperature of the
circulating water drops below +25 °C.
6.5 Switching the working
temperature
– Put the machine in Standby (using the MODE key).
–
“Cold only” models :
1) Press the MODE and ON OFF buttons at the same
time and release them after a second; the “SET”
message will appear.
2)
Repeat step 1); the “Coo” message will appear on
the display.
3) Repeat step 1) to display the preset temperature.
To modify it, use the UP and DOWN arrows.
To store the change, press the MODE and ON-OFF
keys at the same time for 5 seconds; the “Coo” mes-
sage will appear on the display.
Repeat this step another time to display the “SET”
message, and a third time to go back to normal dis-
play.
–
“Heat pump” models:
h
Carry out the operations 1) and 2) as described
above, then press either arrow to display the
“HEA” message.
h
Carry out the operation 3) to switch the program-
ming to hot, and then go back to normal display.
Manuale CLS-CLH1 7.2.2005 10:17 Pagina 23
