Taco Electronic Solutions iWorx ZXU1, Installation Manual

© 2013 Taco Electronic Solutions, Inc.

1

Installation Guide

502-007

ZXU1 Mixing Loop Control - Single Zone

Self-Contained Interoperable Controller Model UCP-1

SUPERSEDES: November 17, 2010

EFFECTIVE: May 30, 2013

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) 

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

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