4.1 Start up
press for about 2 seconds the button
to switch AIR COMBO on; the fan switches on
immediately and the icon of the number shows its rotation level;
the leds
and
start to flash: the first flashes until the compressor starts up, then it
remains on; the second flashes for about 10 seconds more after compressor’s start up,
then it switches off;
after measurement, production of hot water will start until the set point is reached.
NOTE:
at first commissioning, the compressor can take 4-8 minutes to start
4.2 Control and regulation
Respect the ambient and save energy!
The most suitable setpoint for domestic hot water is 45°C. Each more degree required to the system
will enhance energy consumption of 2,5%
Moreover, overcoming 55°C lime precipitation is very high and causes an increase of maintenance
costs for the unit and the system.
4.2.1 Modify parameters by the user
DANGER
The final user is allowed to change only two parameters (see following description)
Pressing the button
for about 2 seconds, following parameters will be displayed:
Set: wished water temperature;
Set2: water temperature when set2 is active.
It’s possible to enter the menu of unit’s actual status and visualize the registered temperatures
(even when the unit is switched off):
press contemporaneously the buttons
and
;
scroll with the buttons
and
and enter the menu “temp”;
in this menu the status of following temperatures is displayed:
tAm: ambient temperature;
tE: evaporation temperature;
tA: temperature of low side of tank;
td: temperature of upper side of tank;
4.2.2 Parameters regulation by the installer
DANGER
Changing of parameters must be only made by specialized technicians. Any change made
by unauthorized personnel can cause damages to the unit and exclusion from warranty.
Air Combo - installation, use and maintenance manual
AIRCOMBO_TEC_EN_4.07
Page 21 of 28
Rossato Group Srl
