Taco Electronic Solutions iWorx MPU2, Installation Manual

© 2013 Taco Electronic Solutions, Inc.

1

Installation Guide

502-009

MPU2/MPU3 Air Control – Pressure Dependent Multi-Zone

Self-Contained Interoperable Controller Model UCP-1

SUPERSEDES: May 25, 2011

EFFECTIVE: April 17, 2013

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 

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) 

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

Cable Type

Pairs

Details

Taco Catalog No.

18AWG 

1

Stranded Twisted Shielded Pair, Plenum

WIR-018

Cable Type

Pairs

Details

Taco Catalog No.

Level 4 22AWG (0.65mm)

1

Unshielded, Plenum, U.L. Type CMP

WIR-022