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BCXC-SVX01B-EN 59
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Analog Inputs
See Table 28 for a complete description of analog inputs.
Binary Outputs
Binary outputs are configured to support the following:
• Two fan stages (when one or two fan stages are present, J1-2 can be configured as exhaust fan)
• One hydronic cooling stage
• One hydronic heating stage (dehumidification requires this to be in the reheat position)
• One DX cooling stage
• One or two-stage electric heat (dehumidification requires this to be in the reheat position)
• Face and bypass damper
• Modulating fresh air damper (Tracer™ ZN520 only)
• One-stage baseboard heat
Table 28. Analog inputs
Analog input Terminal Function Range ZN010 ZN510 ZN520
Zone TB3-1 Space temperature input 5° to 122°F (-15° to 50°C) •••
Ground TB3-2 Analog ground N/A •••
Set TB3-3 Setpoint input 40° to 115°F (4.4° to 46.1°C) •••
Fan TB3-4 Fan switch input 4821 to 4919 W (Off) •••
2297 to 2342 W (Auto)
10593 to 10807 W (Low)
15137 to 16463 W (High)
Ground TB3-6 Analog ground N/A •••
Analog Input 1 J3-1 Entering water temperature -40° to 212°F (-40° to 100°C) •••
J3-2 Analog ground N/A
Analog Input 2 J3-3 Discharge air temperature -40° to 212°F (-40° to 100°C) •••
J3-4 Analog ground N/A
Analog Input 3 J3-6 Fresh air temp/generic temp -40° to 212°F (-40° to 100°C) •
Analog ground N/A
Analog Input 4 J3-7 Universal Input 0 – 100% •
Generic 4-20 ma 0 – 100%
Humidity 0 – 2000ppm
CO
2
Ground J3-8 Analog ground N/A •
Ground J3-9 Analog ground N/A •
Notes:
1. The zone sensor, entering water temperature sensor, discharge air sensor, and the outside air temperature sensor are 10KW thermistors.
2. Zone sensor: Wall mounted sensors include a thermistor soldered to the sensor’s circuit board.
3. Changeover units include an entering water temperature sensor.