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Taco Electronic Solutions iWorx ZXU1 Installation Manual

Mixing loop control - single zone
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ZXU1 Mixing Loop Control - Single Zone
Self-Contained Interoperable Controller Model UCP-1
SUPERSEDES: November 17, 2010
Plant ID: 001-3955
SPECIFICATIONS
Electrical Inputs
Resolution: 10-bit
Indoor Air Humidity: 0-10 Volt DC
Outside Air Temperature, Supply Temperature, Return Temperature, Zone Temperature, Radiant Slab Temperature:
Precon Type III 10K thermistor
Heat Demand, Cool Demand: Dry Contact, Normally Open
Electrical Outputs
Zone Pump, Heat Demand, Cool Demand, Primary Pump, Snow Melt Pump, Boiler Enable, Reversing Valve: 24
VAC, 1A @ 50C, 0.5A @ 60C, limited by the Class 2 supply rating
Modulating Output: 0-10 Volt DC, 2K Ohm minimum load, 8 bit resolution
Power
Requires: 24VAC (20VAC to 28VAC), requires an external Class 2 supply
Consumes: 7.2W with no external loads, maximum limited by the Class 2 supply rating
Recommended Sensor Wire
Maximum Length: 500 feet (152 meters)
Cable Type
18AWG
Recommended LON Bus FTT-10A Network Wire
Speed: 78KBPS
Max Volts: 42.4 Volts DC
Cabling: Maximum node-to-node distance: 1312 feet (400 meters); Maximum total distance: 1640 feet (500 meters)
Cable Type
Level 4 22AWG (0.65mm)
Mechanical
Dimensions: 5.55" (141mm) high, 6.54" (166 mm) wide, 1.75" deep (44 mm), ABS
Controller Weight: 0.70 pounds (0.32 kilograms)
Shipping Weight: 1.0 pounds (0.46 kilograms)
Processor: 3150 Neuron 10 MHz
© 2013 Taco Electronic Solutions, Inc.
Installation Guide
Pairs
1
Stranded Twisted Shielded Pair, Plenum
Pairs
1
Unshielded, Plenum, U.L. Type CMP
Details
Details
WIR-022
EFFECTIVE: May 30, 2013
Taco Catalog No.
WIR-018
Taco Catalog No.
502-007
1

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Summary of Contents for Taco Electronic Solutions iWorx ZXU1

  • Page 1 Unshielded, Plenum, U.L. Type CMP WIR-022 Mechanical Dimensions: 5.55” (141mm) high, 6.54” (166 mm) wide, 1.75” deep (44 mm), ABS Controller Weight: 0.70 pounds (0.32 kilograms) Shipping Weight: 1.0 pounds (0.46 kilograms) Processor: 3150 Neuron 10 MHz © 2013 Taco Electronic Solutions, Inc.

  • Page 2: Equipment Location

    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. 502-007, Effective: May 30, 2013 © 2013 Taco Electronic Solutions, Inc.

  • Page 3: Static Electricity

    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). 502-007, Effective: May 30, 2013 © 2013 Taco Electronic Solutions, Inc.

  • Page 4: Routing Cabling To The Device

    For best performance, connect the power supply common terminal (T38) to the same external point as the ground terminal (T40). 502-007, Effective: May 30, 2013 © 2013 Taco Electronic Solutions, Inc.

  • Page 5: Wiring Information

    Wiring Information WARNING: Disconnect ALL power sources when installing or servicing this equipment to prevent electrical shock or equipment damage. Example wiring diagrams are shown on the following pages. 502-007, Effective: May 30, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 6 ZXU1 502-007, Effective: May 30, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 7 ZXU1 502-007, Effective: May 30, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 8 ZXU1 502-007, Effective: May 30, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 9 ZXU1 502-007, Effective: May 30, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 10 ZXU1 502-007, Effective: May 30, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 11 ZXU1 502-007, Effective: May 30, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 12 ZXU1 502-007, Effective: May 30, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 13 ZXU1 502-007, Effective: May 30, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 14 Changeover temperature (Outside air temperature above which cooling occurs and below which heating occurs). f. Specify Offset for Outside Air Temperature Sensor if calibration is required. g.Press Save. 502-007, Effective: May 30, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 15 9.The Valve (or Variable Speed Circ) menu opens. a.Specify On %. The initial valve setting when the boiler turns on. b.Specify Out Min in Volts for the injection device. (commonly 2 VDC). 502-007, Effective: May 30, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 16 “Yes” or “No” to enable alarms. b.Press Save. 18.The Operating Mode menu opens. a.Select “Winter.” (Example shown above, additional setting options are detailed in ZXU Application Guide #505-007). 502-007, Effective: May 30, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 17 Boiler Supply and Boiler Return Temperature. c. Override is used for system commissioning or to force the system on. d.Press Save. 4.Press Next 13. 502-007, Effective: May 30, 2013 © 2013 Taco Electronic Solutions, Inc.

  • Page 18: Troubleshooting

    – Off when there is no network activity Service – Illuminated when the service pin is depressed or when a controller gets configured by the LCI. Figure 2: ZXU1 Controller LEDs Status Network Service 502-007, Effective: May 30, 2013 © 2013 Taco Electronic Solutions, Inc.

  • Page 19: Troubleshooting Tips

    REPRESENTATIONS AND WARRANTIES This Document is subject to change from time to time at the sole discretion of Taco Electronic Solutions, Inc. All updates to the Document are available at www.taco-hvac.com. When installing this product, it is the reader’s responsibility to ensure that the latest version of the Document is being used.

  • Page 20: Applicable Documentation

    Taco Electronic Solutions, Inc. will not be responsible for any product or part not installed or operated in conformity with the Document and instructions or which has been subject to accident, disaster, neglect, misuse, misapplication, inadequate operating environment, repair, attempted repair, modification or alteration, or other abuse.
  • Page 21 ZXU1 502-007, Effective: May 30, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 22 ZXU1 502-007, Effective: May 30, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 23 ZXU1 502-007, Effective: May 30, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 24 Taco Electronic Solutions, Inc. is a subsidiary of Taco, Inc. Visit our web site at: http://www.taco-hvac.com Printed in the USA iWorx® and iView® are registered trademarks of Taco Electronic Solutions, Inc. © 2013 Taco Electronic Solutions, Inc. LON, LONWORKS, & LONMARK are trademarks of Echelon Corporation...

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