4. Functioning and use
The remote programmable controller is the most suitable solution for this kind of applications: it
is completely programmable, both on regulation’s side and user interface’s side, and it’s very
easy and intuitive.
The display shows 4 red digits (incl. decimal digits) and 16 icons of different colours; keyboard
has 4 buttons.
Fig.12 Control display
UP/DOWN allows changing parameters and surfing into the menu;
SET/ENTER: pressing this button it is possible to enter the value change mode, to
confirm the selected value or to go to the next level in the menu;
STAND BY/ESC: Pressing this button for about 2 seconds, it is possible to switch the
unit on or off. If pressed inside a menu, you will go up to the higher level.
Moreover following icons are used:
Icon summer
: it’s on, when compressor is working, it flashes when compressor is in
temporization before a starting.
Icon 1,2,3: identify the status of fan, indicating respectively the minimum, medium and
maximum fan’s speed;
Icon of integrative resistance
: identifies the status ON of the integrative electrical
resistance: it flashes when the resistance is ON, otherwise it is off;
Icon alarm
: identifies if there are alarms: it flashes when there is an alarm;
Icon defrost
: identifies the status of defrosting: it is switched on when the solenoid is
open;
Icon “set2”
: it’s open when system’s set2 is setted.
To set the temperature press the button “SET” for at least three seconds or until the setted set
point value is displayed and the led flashes.
NOTE:
In the first view the temperature in the upper part of the tank is displayed: this corresponds to the
temperature of water ready for withdrawal.
Air Combo - installation, use and maintenance manual
AIRCOMBO_TEC_EN_4.07
Page 20 of 28
Rossato Group Srl
