Evco EV3 200 WEB - 7. System Regulators; 7.1 Heating;Cooling Temperature Regulation; 7.2 Neutral Zone Temperature Regulation

1143W24E4.00 · EV3 200 Web 03/2021
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7. REGULATORS
7.1 HEATING/COOLING TEMPERATURE
The temperature regulation configuration parameters are:
Par. Description MU Range
r0 Cooling regulation differential; temperature to be added to the setpoint (Setpoint + r0) °C/°F 0.1...25.0
r1 Minimum value attributable to setpoint. °C/°F -30.0...r2
r2 Maximum value attributable to setpoint. °C/°F r1...99.0
r12 Differential position r0. 0=Asymmetrical;1 = Symmetrical. ---
0/1
u7 Neutral zone threshold for heating. °C/°F -99.0...99.0
7.1.1 Operation
The controller manages the temperature according to the type of request (heating/cooling).
°C/°F
Con r5 = 0
r0
Setpoint
Setpoint
°C/°F
Con r5 = 1
Setpoint - u7 + 2°
Fig. 27. Operation of temperature regulator
Cooling
If the controller receives a cooling request:
• Cooling output (Compressor) between Setpoint + r0 and Setpoint .
When the temperature read by Pb1 reaches the value of Setpoint + r0,thecontrolleractivatesthecompressoroutputtocool
until the temperature goes below the threshold set by Setpoint.
Heating
If the controller receives a heating request:
• Heating output (Heaters) between Setpoint and Setpoint - u7+ 2°.
When the temperature read by Pb1 reaches the value of Setpoint - u7,thecontrolleractivatestheheateroutputtoproduce
heat until the temperature goes above the threshold set by Setpoint - u7 + 2°.
7.2 HEATING/COOLING TEMPERATURE IN THE NEUTRAL ZONE
The temperature regulation configuration parameters in the neutral zone are:
Par. Description MU Range
r0 Cooling regulation differential; temperature to be added to the setpoint (Setpoint + r0) °C/°F 0.1...25.0
r1 Minimum value attributable to setpoint. °C/°F -30.0...r2
r2 Maximum value attributable to setpoint. °C/°F r1...99.0
u7 Neutral zone threshold for heating. °C/°F -99.0...99.0
7.2.1 Operation
Regulation in the neutral zone is activated if r11≠0(ifr11<0,theneutralzoneisactivatedwithaheatingrequest).
Setpoint
°C/°F
Setpoint + r0
Setpoint - u7 + 2°
Setpoint - u7
Fig. 28. Operation of temperature regulator in the neutral zone