ECKELMANN VS 300 - System Expansion Options

Application of VS 300
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Doku-Version 2.05 - Firmware 2.10 - 15. September 2017
Four freely configurable inputs are available and can be assigned the following functions:
‐ Fast unload
‐ Load shedding
‐ Second setpoint toggle
‐ External alarm
‐ Heat recovery (HR) mode
‐ Safety loop
3.1 System expansion options
Potential applications of the VS 300 are illustrated in the following diagrams. Depending on the expansion stage,
either 4, 8 or a maximum of 12 relay/control stages (see section 1 Design) can be divided among the compres
sor or condenser stages for control.
S Low-pressure and high-pressure control. Available operating modes are NT/HP or LT/HP
HP
ZNR. 51203 52 030 E0
LP
NT/LT
0NT/LT
p
C
p
to NT/LT refr. point
Regelkreis 2
VS 300
CL 2CL 1
Controlloop 2
Controlloop 1
from NT/LT refr. point
S Control of two independent low-pressure loops. Available operating modes are NT/NT, NT/LT or LT/LT
ZNR. 51203 52 130 E0
LP
NT/LT
LP
NT/LT
0NT/LT
p
0NT/LT
p
to NT/LT ref. point to NT/LT ref. point
Regelkreis 2
VS 300
CL 2CL 1
Controlloop 2Controlloop 1
from NT/LT ref. point from NT/LT ref. point