Installation and Maintenance Manual

VAV-SVX07A-EN 7
General Information
Universal Inputs UI1 and UI2
• UI1: Spare, but recommended for Relative Humidity. Resistive/thermistor inputs, 0-10VDC
inputs, or 4-20 mA inputs. Current Mode Impedance: 200 ohm. Voltage Mode Impedance: 10
kohm min.
• UI2: Spare, but recommended for CO
2
. Resistive/thermistor inputs, 0-10VDC inputs, or 4-20 mA
inputs. Current Mode Impedance: 200 ohm. Voltage Mode Impedance: 10 kohm min.
Pressure Inputs P1 and P2
• P1: Supply air flow; pressure transducer: From 0 to 2 in. water column (0 to 498 Pa)
• P2: Spare, but recommended for dual duct secondary air flow
Binary input BI1 to BI3
• BI1: Occupancy
• BI2: Spare
• BI3: Spare
Binary outputs BO1 to BO9
Analog outputs AO1 and AO2
• AO1: Spare. Voltage output is 0 to 10 VDC, 500 ohm min. impedance. Current output is 4 - 20
mA, 500 ohm max. impedance
Note: ECM fan for future production.
• AO2: Spare. Voltage output is 0 to 10 VDC, 500 ohm min. impedance. Current output is 4 - 20
mA, 500 ohm max. impedance
Note: For more information about wiring spare I/O, see the Tracer™ UC400 controller Installation
Sheet X39641064*-01.
Agency listings/compliance
UL - Open Energy Management Equipment, 834Y
UL94-5V Flammability
CE marked
FCC Part 15, Subpart B, Class B Limit
AS/NZS CISPR 22:2006
VCCI V-3/2008.04
Table 1. Binary outputs
Binary Outputs Type Output Rating Pilot duty
BO1 Fan 10A up to 277 VAC 10A at 30 VAC/VDC, 2A at 120 VAC, 8A at 250 VAC,
BO2 Spare Relay 10A up to 277 VAC 10A at 30 VAC/VDC, 2A at 120 VAC, 8A at 250 VAC,
BO3 Spare Relay 10A up to 277 VAC 10A at 30 VAC/VDC, 2A at 120 VAC, 8A at 250 VAC,
BO4 Spare Relay 10A up to 277 VAC 10A at 30 VAC/VDC, 2A at 120 VAC, 8A at 250 VAC,
BO5 Heat stage 3 TRIAC 24-27 VAC, .5A Resistive VA
BO6 Heat stage 2/Water Valve Close TRIAC 24-27 VAC, .5A Resistive VA
BO7 Heat stage 1/Water Valve Open TRIAC 24-27 VAC, .5A Resistive VA
BO8 Air Damper Close TRIAC 24-27 VAC, .5A Resistive VA
BO9 Air Damper Open TRIAC 24-27 VAC, .5A Resistive VA