Prolon VC2000 Series - Page 86

1.5.2 - Unit with Analog Cooling (Modulating)
• Select “Analog” in the “Mechanical Cooling” dropdown list.
Output=0% Output=100%
Setpoint0%
Proportional Band
Demand
Output=0% Output=100%
Setpoint
35%
0%
20%
Proportional Band
Demand
Demand - Setpoint 50 - 35
Proportional Band 20
Voltage output = x 10Vdc = x 10Vdc = 7.5Vdc
• The setpoint value indicates when the cooling is activated, and the proportional value is the 0-100% output range.
• Looking at the modulating cooling, with a setpoint of 35% and a proportional band of 20%.
• The Analog Output will begin to increase its voltage when the demand (source: Math 1) reaches 35%. As the cooling
demand increases, the voltage output will increase proportionally. Once the cooling demand reaches 55% (setpoint +
proportional band), the output will be 100%.
• Look at the following example for a 50% cooling demand:
Setpoint = 35% Demand = 50%
1.6 - Conguring the Heating
•  Onthetopleftofthescreen,select“Cong”andthen“Heating”.
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