BAS-SVX084A-EN
11
Overview
Device Inputs/Outputs
Below is a list of device inputs and outputs.
•
A twisted/shielded communication link
•
Zone sensor
•
Occupancy sensor (optional)
•
Discharge Air Temperature (DAT)
•
CO
2
sensor
•
24 Vac, Class II power
provides details for each type input/output.
Table 4.
Symbio
210 inputs and outputs
Analog Inputs 1 through 3
Note:
Configuration options when used as spare; 10k
thermistor, 0 to
1k
linear setpoint, 200
to 20k
linear.
Universal Inputs UI1 and UI2
Note:
Configuration options when used as spare; 4–20mA, 0-10V,
resistive (see AI specifications), binary (solid state open collector)
•
AI1
: Space temperature; thermistor: 10k
@77°F (25°C) range: 32°F
to 122°F (0°C to 50°C)
•
AI2
: Space setpoint; potentiometer: 1k
from 50 to 90°F (10 to
32.2°C), */** (thumbwheel) functionality supported
•
AI3
: Discharge air temperature: 10k
@77°F (25°C) from -40°F to
212°F (-40 to 100°C)
•
UI1
: Relative Humidity
•
UI2
: CO
2
Pressure Input P1
Binary Input BI1, Dry Contact
•
P1
: Supply air flow; pressure transducer: From 0 to 5 in. water column
(0 to 1245 Pa)
•
BI1
: Occupancy
Analog Outputs AO1 and AO2
Note:
Configuration options when used a spare; Voltage output is 0 to 10
VDC, 500 ohm min. impedance. Current output is 4 - 20 mA, 500
max. impedance.
Binary Outputs 1 through 5
Note:
0.5A Resistive Maximum Rating
•
AO1/B12
: ECM
•
AO2/B13
: SCR Heat/Waver Valve Signal
•
BO1:
Heat stage 3 TRIAC
•
BO2:
Heat stage 2/Water Valve Close TRIAC
•
BO3
: Heat stage 1/Water Valve Open TRIAC
•
BO4
: Air Damper Open TRIAC
•
BO5
: Air Damper Close TRIAC