Evco EV3 200 WEB - 7.4 Double Compressor Control

1143W24E4.00 · EV3 200 Web 03/2021
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7.4 DOUBLE COMPRESSOR
If output out4 is configured u1=8,thecontrollermanages2compressors.
Activating compressor 2
Compressor 2 is activated after a delay C11 from compressor 1 switch-on.
Ifactive,compressor2usesthe:
• Setpoints;
• Differentials;
• Delays and
• Protections
set for compressor 1.
7.4.1 Operating Diagram
Pb1
ON
1
OFF
Setpoint
Setpoint + r0
C3
ON
2
OFF
C11
Fig. 31. Normal compressor 2 operation