Orion-system SA Controller Manuel d'utilisateur télécharger pdf (Page 27)

SA Controller Technical Guide

Installation & Wiring

Chilled Water Valve

For Chilled Water Applications, the Modulating Cooling Signal(s) can

be conﬁ gured for either a 0-10 VDC or 2-10 VDC output signal when

programming the controller. The output signal can also be conﬁ gured

for either Direct Acting or Reverse Acting operation as required by your

application. This signal output would be connected to a Modulating

Chilled Water Valve.

See Figure 23 below for detailed wiring of a Chilled Water Valve.

Warning: It is very important to be certain that all wiring is

correct as shown in the wiring diagram below. Failure to observe the

correct polarity could result in damage to the Modulating Cooling

Device or the SA Expansion Module.

Figure 23: Chilled Water Valve Wiring

Modulating Cooling Device Wiring

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Orion-system SA Controller Manuel d'utilisateur Page 27