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© 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
Summary of Contents for iWorx ZXU1
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