Control4 CCZ-T1-W Przewodnik Instalacji Pobierz pdf (Strona 30)

Loosen the screw on the heat terminal (typically marked ‘W’ or ‘W1’) and secure

one end of the resistor in the HVAC system’s Heat Relay Terminal by tightening the

terminal screw.

Connect the other end of the resistor to the 24V common return path. Two com-

pleted wiring examples are shown below.

Example 1. The ﬁrst example (Figure 8) shows an HVAC system with a dedicated

24V Common screw terminal on the control board. The resistor simply spans be-

tween the Heat Relay Terminal (W) and the Common Terminal, providing a bypass

for some of the current that would otherwise pass through the heat relay circuit.

Figure 8. HVAC with Common Screw Terminal

Common Terminal

Bypass Resistor

Heat Relay

Terminal (W)

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Control4 CCZ-T1-W Przewodnik Instalacji Strona 30