iWorx® SMZ1
6
505-048-2, Effective: March 10, 2015
© 2015 Taco Electronic Solutions, Inc.
The equipment must be installed within 500
feet of all input peripherals (smoke detectors, sensors, etc.) that will be
connected to the equipment. It must be within 200
feet of any connected thermostats.
Selecting a Power Source
This equipment requires a UL recognized external power source (not supplied) to operate. The controller power input
requires a voltage of 24
Volts
AC.
To calculate power source current requirements, add the power consumption of all peripheral devices to that of the
controller.
The controller and triac output loads can use the same power source. If both are using the same power source, the
loads must have EMF protection. This protection can be integral to the load, or installed in the 24
VAC
wiring
across
the
load’s coil.
To provide necessary RFI and transient protection, the controller’s ground (GND) pin (T40) must be connected to earth
ground or the earth ground of the packaged unit’s enclosure ground. Failure to properly ground the controller may
cause it to exceed FCC limits. Excessive noise could also produce inaccurate sensor data. The power source must be
capable of operating with this connection to ground.
INSTALLATION
Warning:
Electrical shock hazard. To prevent electrical shock or equipment damage, disconnect
ALL
power sources to controllers and loads before installing or servicing this equipment or modifying any wir-
ing.
Mounting the Device
1.Select a mounting location. Enclosure mounting is recommended.
2.Hold the controller on the panel you wish to mount it on. With a marker or pencil mark the mounting locations on
the panel.
3.Using a small drill bit pre-drill the mounting holes.
4.Using two #6 pan head screws, mount the controller to the panel.
5.Wire the controller (See Routing Cabling to the Device).
