KMC Controls VEZ-4x Series - Manual (Page 2)

VEZ-4x Series, 2-Way/3-Way, NPT Zone Control Valves (1/2 to 1") 2 Installation Guide
G
G0
(Red Wire)
(Black Wire)
24 VAC
Neutral
L
N
(Black Wire)
(White Wire)
120 VAC
Neutral
(Green Wire)
GND
24 VAC Fail-Safe (Spring Return)
Actuator “M” MEP-3503 (NO or Fail AB-A)
Actuator “N” MEP-3501 (NC or Fail AB-B)
120 VAC Fail-Safe (Spring Return)
Actuator “P” MEP-3504 (NO or Fail AB-A)
Actuator “Q” MEP-3502 (NC or Fail AB-B)
From Class 2
Transformer
Wiring
+
–
Y
G0
G
24
VAC
Class 2
Transformer for
24 VAC Power
Proportional (Fail-In-Place)
Actuator “A” MEP-3516 (NO or 0 VDC = AB-A)
Actuator “B” MEP-3511 (NC or 0 VDC = AB-B)
24
VAC
Y2
Y1
G
Neutral
Tri-State (Fail-In-Place)
Actuator “F” MEP-3510
0–10 VDC
Class 2
Transformer for
24 VAC Power
Neutral
Terminal
Plug
Terminal
Plug
Terminal
Plug
Block
Cover
See the appropriate diagram.
NOTE: All wiring must conform to NEC and local
codes and regulations.
NOTE: For 120 VAC spring return actuators, the
wiring connection requires a junction box
and flex conduit.
NOTE: For 24 VAC actuators, use Class 2
transformers. For 24 VAC spring return
actuators, connections to the wire leads
can be made inside the housing (remove
the two screws and pull the housing off to
access the interior).
CAUTION
For proportional actuators, wire connection
on G is 24 VAC HOT, not ground! G0 and G
must be properly wired for correct function
and full life of the actuator.
Two-Position Spring Return
Proportional and Tri-State