EVCO c-pro nano NAV - Manual (Page 24)

C-PRO NANO AND MICRO NAV APPLICATION MANUAL
Page 24
6.4 Calculating steps
The master acquires the fresh water input temperature of the slave units and calculate the enabling
steps on the basis of the average input temperature and the BAnd regulation band.
The regulation band is divided into the same amount of steps as the slave units connected to the
master, in this way the master decides how many chillers to activate.
In the case of summer functioning (chiller)
In the case of winter functioning (heat pump)
6.5 Enabling for regulation
As well as deciding how many slave units to activate (enabling steps) the master also selects also
which to enable for regulation from those in stand-by.
First selected are the units in conditions to regulate and whose fresh water output temperature is
more offset from the set point. A control is also performed, meaning that a compressor that has
exceeded the maximum number of start-up allowed every hour (nCMP parameter) cannot be
enabled.
S SP +
Steps
Input average T°
Steps
S S
Input average T°