This calculation requires a differential pressure sensor or linear flow sensor connected to the module. The next table shows the type of input and the corresponding formula for calculation of the chilled water flow.
Table 1. Chilled water flow calculation
CDP-01 |
Input sensor “ChillDiffPress” |
Chilled water flow |
0 |
Linear flow signal |
Flow = CDP-02 * SensorInput |
1 |
Differential pressure sensor |
Flow = CDP-02 * SQRT(SensorInput) |
Whereby
“SensorInput” is a:
CDP-02 = conversion constant.
The chilled water flow is displayed by parameter DISP-01.
Table 2. Parameter List
Description |
Value Range |
Default Value |
Unit |
CDP-01: input signal 0 = linear 1 = differential pressure |
0…1 |
1 |
- |
CDP-02: conversion constant |
0…9999 |
1 |
- |
DISP-01: actual flow chiller |
- |
- |
kg/s |