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Installing the Zone Ctrl II
To wire inputs and outputs
WARNING Do not apply line voltage (mains voltage) to the controller's ports and terminals.
1
Verify that the Zone Ctrl II's power and communications connections work properly.
2
Pull the screw terminal connector from the controller's power terminals labeled Gnd and 24 Vac.
3
Connect the input wiring to the screw terminals on the Zone Ctrl II.
NOTES
Connect the shield wire to the Gnd terminal with the ground wire.
○
IN-3 and IN-4 share the Gnd terminal beside IN-3.
○
24 Vdc
half-wave
power
supply
4
To use IN-1 or IN-2, set jumpers IN-1 or IN-2 to the type of signal the input will receive (thermistor/dry
contact, or 0–5 Vdc).
5
Connect the binary output wiring to the screw terminals on the Zone Ctrl II and to the controlled device.
Any BO
Any BO
Any BO
Bus
Zone Ctrl II and
VAV Zone II Secondary Duct Installation and Start-up Guide
Error! No text of specified style in document.
Thermistor
Dry
contact
Out
V+
2 wire
0-5 Vdc
Out
V+
3 wire
0-5 Vdc
Gnd
Out +
V+
4 wir e
0-5 Vdc
Gnd
Out -
Motor
Valve
24 Vac
IN
Any input
Gnd
IN
Any input
Gnd
IN-1 or IN-2 only
n/c
Gnd
IN-1 or IN-2 only
Gnd
IN-1 or IN-2 only
Gnd
18
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