Custom Programming

Custom logic (control strategy/switching tables) can be used to calculate the number of requested chillers. Via parameter SYS-05, the input signal type of the input “Req_Loads“ can be defined.

Table 7.   Input Req_Load

SYS-05

Input Req_Load

0

absolute value 0…N

1

floating value –1;0,+1

2

modulating control signal 0…100


Fig. 3.   Calculated number of chillers