iWorx® VAV Series
10
502-011, Effective: March 16, 2011
© 2011 Taco Electronic Solutions, Inc.
SPECIFICATIONS
Electrical
Inputs
• Cabling: twisted shielded pair, 18
AWG
recommended—500
feet max. (152
meters)
• Resolution: 10
bit
Thermostat Network
• 12
Volt nominal, internally limited to 0.04
A
Primary Air Temperature, Discharge Air Temperature Sensors
• Precon Type III 10K thermistor
Indoor Air Quality
• Dry Contact
• Normally open
• 5 Volts DC max
Outputs
Fan Start/Stop, Heating Stages 1 & 2 or Heating Valve Open & Close
• 20 to 28
Volts
AC
• 0.7A maximum each
Power
Power Requirements
• 24
VAC nominal, 100VA max (requires an external class 2 supply)
Power Consumption
• 15VA with no external loads, maximum limited by the class 2 supply rating
Recommended Sensor Wire
FTT-10A Network
• Speed: 78KBPS
• Cabling: Maximum node-to-node distance: 1312 feet (400 meters)
• Maximum total distance: 1640 feet (500 meters)
For detailed specifications, refer to the
FTT-10A Free-Topology Transceiver User’s Guide
published by Echelon Corpo-
ration (www.echelon.com/support/documentation/manuals/transceivers).
Mechanical
Housing
• Dimensions: 5.25" (13.34 cm) high, 8.87" (22.53 cm) wide, 2.75" (6.99 cm) deep
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
