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Controls using DC Analog Input/Outputs
(Standard Low Voltage Multi conductor
Wire)
Before installing any connecting wiring between the unit
and components utilizing a DC analog input\output signal,
refer to the Dimensions and Weights chapter for the
electrical access locations provided on the unit.
•
Table 8, p. 31
lists the conductor sizing guidelines that
must be followed when interconnecting the DC binary
output devices and the system components utilizing a
DC analog input/output signal to the unit.
Notes:
–
Resistance in excess of 2.5 ohms per
conductor can cause deviations in the
accuracy of the controls.
–
Ensure that the wiring between controls and
the unit's termination point does not exceed
two and a half (2.5) ohms/conductor for the
length of the run.
•
Do not run the electrical wires transporting DC signals
in or around conduit housing high voltage wires.
DC Conductors
Table 8. Zone sensor module wiring
Distance from Unit to Control
0 - 150 feet
0 - 45.7 m
151 - 240 feet
46 - 73.1 m
PKGP-SVX010B-EN
Recommended Wire Size
22 gauge
2
0.33 mm
20 gauge
2
0.50 mm
Table 8. Zone sensor module wiring (continued)
Distance from Unit to Control
241 -385 feet
73.5 - 117.3 m
386 - 610 feet
117.7 - 185.9 m
611 - 970 feet
186.2 - 295.7 m
Note: See Symbio™ 700 unit controls schematic, 1213-
4349, for controls wiring.
Space Temperature Averaging
Space temperature averaging is accomplished by wiring a
number of remote sensors in a series/parallel circuit.
Using the BAYSENS016* or BAYSENS077*, at least four
sensors are required to accomplish space temperature
averaging.
•
Example #1 illustrates two series circuits with two
sensors in each circuit wired in parallel. The square of
any number of remote sensors is required.
•
Example #2 illustrates three sensors squared in a
series/parallel circuit. Using BAYSENS077*, two
sensors are required to accomplish space temperature
averaging.
•
Example #3 illustrates the circuit required for this
sensor. lists the temperature versus resistance
coefficient for all sensors.
Installation
Recommended Wire Size
18 gauge
2
0.75 mm
16 gauge
2
1.3 mm
14 gauge
2
0.2 mm
31
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