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Taco Electronic Solutions iWorx MPU2 Installation Manual

Air control – pressure dependent multi-zone
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MPU2/MPU3 Air Control – Pressure Dependent Multi-Zone
Self-Contained Interoperable Controller Model UCP-1
SUPERSEDES: May 25, 2011
Plant ID: 001-3961
SPECIFICATIONS
Electrical Inputs
Cabling: twisted shielded pair, 18 AWG recommended—500 feet max. (152 meters), 10 bit resolution
Mixed Air Low Limit, Filter Status, Smoke Detect, Local IAQ Alarm: Dry Contact, Normally Open, 5 Volts DC Max
Fan Proof: Dry Contact, Normally Closed
Return Air Humidity, Static Pressure: 0 - 10 Volts DC
Mixed Air Temperature, Supply Air Temperature, Return Air Temperature: Precon Type III 10K thermistor
Electrical Outputs
Fan Start/Stop, Heating Stage 1, Heating Stage 2, Cooling Stage 1, Cooling Stage 2, Cooling Stage 3, Cooling Stage
4, Digital Economizer: 24 Volts AC, 1A @ 50C, 0.5A @ 60C, limited by the Class 2 supply rating
Modulated Heating, Modulated Cooling, Modulated Economizer, Bypass Damper: 0-10 Volts DC, 2K Ohm minimum
load, 8 bit resolution
Recommended Sensor Wire
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
Flash: 48 Kilobytes
SRAM: 8 Kilobytes
Termination: 0.197" (5.0 mm) Pluggable Terminal Blocks, 14-22 AWG
© 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: April 17, 2013
Taco Catalog No.
WIR-018
Taco Catalog No.
502-009
1

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Summary of Contents for Taco Electronic Solutions iWorx MPU2

  • Page 1 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 Flash: 48 Kilobytes SRAM: 8 Kilobytes Termination: 0.197” (5.0 mm) Pluggable Terminal Blocks, 14-22 AWG © 2013 Taco Electronic Solutions, Inc.

  • Page 2: Equipment Location

    Use only copper conductors that are suitable for 167 °F (75 °C). Static Electricity Static charges produce voltages that can damage this equipment. Follow these static electricity precautions when handling this equipment. • Work in a static free area. 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.

  • Page 3: Fcc Compliance

    (T40). 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 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 4 MPU2/MPU3 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 5 MPU2/MPU3 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 6 MPU2/MPU3 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 7 MPU2/MPU3 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 8 6.Press on VAV boxes associated with MPU. Associ- ated controllers appear in RED. Press Save. 7.Press Prev twice. From the Main Controller Menu, press All Settings. 3.Press HVAC Setup. 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 9 Please review Factory KP/KI Setting White Paper # 508-001. 11.The Supply Temp Reset Curve menu opens. a.Select Min Differential. b.Select Max Differential. c. Select Cool Setp Low. d.Select Cool Setp High. 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 10 (0-4). b.Select the stage control band in degrees. Cannot be set to 0. c. Select the stage time in minutes. Cannot be set to 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 11 = fan always cycles with Heat/Cool call. c. Press Save. 23.Press Economizer. 24.The Economizer menu opens. a.Select Disabled. (if economizer is required, see Economizer programming instructions in this docu- ment.) b.Press Save. 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 12 MPU2/MPU3 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 13 MPU2/MPU3 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 14 6.Press on VAV boxes associated with MPU. Associ- ated controllers appear in RED. Press Save. 7.Press Prev twice. From the Main Controller Menu, press All Settings. 3.Press HVAC Setup. 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 15 Please review Factory KP/KI Setting White Paper # 508-001. 11.The Supply Temp Reset Curve menu opens. a.Select Min Differential. b.Select Max Differential. c. Select Cool Setp Low. d.Select Cool Setp High. 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 16 Please review Factory KP/KI Setting White Paper # 508-001. 17.The Modulated Cooling menu opens. a.Select Min AO (Output) Voltage (0-10VDC). 2.0VDC Shown as Example. b.Select Max AO (Output) Voltage 90-10VDC). 10.0VDC shown as example. 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 17 22.The Fan Type menu opens. Select: a.ON = fan is on in Occupied mode but cycles with Heat/Cool call in Unoccupied. b.Auto = fan always cycles with Heat/Cool call. c. Press Save. 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 18 MPU2/MPU3 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 19 MPU2/MPU3 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 20 (ON) or dis- 9.Press Next 4. abled(OFF) during the unoccupied time peri- ods. b.Select economizer setpoint, which specifies the outside air temperature at which the economizer is enabled. 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 21 MPU2/MPU3 10.Press Cutoff Temps. 11.The Cutoff Temps menu opens. a.Specify Max OAT Heating. b.Specify Min OAT Cooling. c. Specify Max OAT Economizer. d.Specify SAT Cooling Limit. e.Press Save. 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 22 MPU2/MPU3 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 23 MPU2/MPU3 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 24 - Digital = Open/close switch sensor - Analog = 0-10VDC Sensor (shown) 9.Press Save. 13.The IAQ Sensor menu opens. a.Select Min PPM. b.Select Max PPM. c. Select Setpoint PPM. 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.
  • Page 25 MPU2/MPU3 d.Select Offset (calibration) PPM. e.Press Save. 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.

  • Page 26: Troubleshooting Tips

    Provides instructions for setting up and using the iWorx® Local Guide, Document No. 505-002 – Installers Control Interface. – Service Personnel iWorx® LCI3 Application – Start-up Technicians Guide, Document No. 505-050 – End user 502-009, Effective: April 17, 2013 © 2013 Taco Electronic Solutions, Inc.

  • Page 27: Representations And Warranties

    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 28 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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