Taco Electronic Solutions iWorx ZXU1, Installation Manual

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iWorx® ZXU1
2 502-007, Effective: May 30, 2013
© 2013 Taco Electronic Solutions, Inc.
Flash: 48 Kilobytes
SRAM: 8 Kilobytes
Termination: 0.197” (5.0 mm) Pluggable Terminal Blocks, 14-22 AWG
Temperature: 32 °F to 140 °F (0 °C to 60 °C)
Humidity: 0 to 90%, non-condensing
UL Listed for US and Canada, Energy Management Equipment PAZX and PAZX7
FCC Part 15 Class A compliant
Equipment Location
Abide by all warnings regarding equipment location provided in this document. This equipment is suitable for
indoor use only. Preferably, or as required by National Electrical Code, the unit is intended to be installed within
an electrical control enclosure. Operate where ambient temperatures do not exceed 140
°F (60 °C) or fall
below 32 °F (0 °C) and relative humidity does not exceed 90%, non-condensing.
If the equipment is to be installed outdoors, it must be contained within a protective enclosure that maintains internal tem-
perature and humidity within the ranges specified for this equipment.
The equipment must be installed within 500 feet of all input peripherals (smoke detectors, sensors, etc.) that are connected
to the equipment.
Avoid locations where corrosive fumes, excessive moisture, vibration or explosive vapors are present.
Avoid electrical noise interference. Do not install near large contactors, electrical machinery, or welding equipment.
Selecting a Power Source
This equipment requires a UL recognized Class 2 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 control-
ler.
The controller and sensor power supplies 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 PRECAUTIONS
General
CAUTION: This symbol is intended to alert the user to the presence of important installation and maintenance
(servicing) instructions in the literature accompanying the equipment.
CAUTION: Risk of explosion if battery is replaced by an incorrect type. Contains lithium type battery; dispose
of properly.
WARNING: Electrical shock hazard. Disconnect ALL power sources when installing or servicing this equip-
ment to prevent electrical shock or equipment damage.