KDVRAY500 MANUAL
Pag. 12 of 24
START-UP AND COMMISSIONING
All hydraulic, aeraulic and electrical connections must be carried out before starting up the
machine. Check the availability of refrigerated water and the absence of water leakage from the
connections and from the machine.
The electronic control panel has a red LED and a green LED, which show the general status of
the unit.
Functions that can be activated via digital inputs are:
-
current season;
-
fresh air ventilation with heat recovery (yes, no, automatic with time slots);
-
summer dehumidification;
-
summer cooling;
-
winter heating;
-
free-cooling;
-
flow-rate attenuation compared to normal setting.
Settings that can be carried out on the keyboard are:
-
activation of functions (as an alternative to digital input);
-
current time;
-
current season (as an alternative to digital input);
-
flow rate for air supply in Ventilation and VentRecirculation mode;
-
standard air supply temperature and air temperature for heating and cooling;
-
automatic time slots for fresh air ventilation (max. 4);
-
time slots for flow-rate attenuation (max. 4);
It is possible to read the values of the temperature sensors that the machine is equipped with.
For more details see the section “CONTROL PANEL“ ahead in this document.
When the machine is powered up, the green
LED lights up, remaining lit for about 90
seconds. During this period the control panel
carries out some checks. Later, the red LED
lights up, indicating the presence of voltage;
the machine is therefore ready to receive input
from the control panel and to perform the
required functions..
PLEASE NOTE: After the start-up time of 90
seconds, the green LED is to be considered as
input sent to the cooling compressor. If it is
continuously lit, the compressor is functioning,
if it is flashing, there is a request for operation
but the compressor is not activated because it
is waiting for the start timer or because there is
some fault.
