FloAire Demand Control Ventilation System User Manual
Page 29
A0023662
May 2014 Rev.5
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o Pin 1 positive side of the 24 Volt DC input to the board
o Pin 2
– 7 Open collector outputs, 100ma max each, suitable for driving 24VDC relays or
indicator lamps.
o Pin 8
– 12 4-20ma current inputs. 150 Ohm impedance to 24 VDC ground pin 14.
o Pin 13 Chassis ground connection, this pin connects to the 24VDC ground through a
paralleled 1000pf 2000V cap and a 100k Ohm 1/4W resistor.
o Pin 14 negative side of the 24 volt DC power input (ground or common side of the low
voltage circuitry)
J7: 120 VAC control connector for factory wiring
o Pin 1 IO1, BMS input, can detect the presence of 120VAC, this forces the fans on.
o Pin 2 B1, input, this pin can detect the presence of 120VAC.
o Pin 3 EF1, output and input, this pin can source 120VAC and detect the presence of
120VAC
o Pin 4, SF1, output, this pin can source 120VAC
o Pin 5, OV1, input, this pin can detect the presence of 120VAC
J8: 120 VAC control connector for factory wiring
o Pin 1 IO2, output and input, this pin can source 120VAC and detect the presence of
120VAC
o Pin 2 B2, input, this pin can detect the presence of 120VAC
o Pin 3 EF2, output and input, this pin can source 120VAC and detect the presence of
120VAC
o Pin 4, SF2, output, this pin can source 120VAC
o Pin 5, OV2, input, this pin can detect the presence of 120VAC
J9: 120 VAC control connector for factory wiring
o Pin 1 N1, Neutral, this is the neutral or return path for the detection of 120VAC by the
input pins. It would be connected to the Neutral side of the 120 VAC supply
o Pin 2 AR1, input, this pin can detect the presence of 120VAC
o Pin 3 GAS, output, this pin can source 120VAC
o Pin 4 KTS, input, this pin can detect the presence of 120VAC
o Pin 5 KS, output, this pin can source 120VAC
o Pin 6 ST, output, this pin can source 120VAC
o Pin 7 PCU, input, this pin can detect the presence of 120VAC
o Pin 8 H1, this is the 120 Volt AC 50/60Hz input to the board, it feeds through an on board
4 Amp Slo-Blo fuse and is used to source 120 VAC to all the pins described as 120 VAC
outputs. The total current draw of all the 120VAC outputs must not exceed 4Amps.
J10: Low voltage field connections
o Pin 1, 2
– 15, 16 thermistor temperature probe inputs. 10k type B thermistors are
connected to these inputs.
o Pin 17, 19, 21, 23, 25, 27, sources 24VDC which is current limited through an on board
200ma PTC Poly-Fuse. This is the high side of the pulse with modulated outputs, and low
voltage inputs listed below.
o Pin 18, 20, 22, 24 Open collector PWM outputs, 100ma max each. Suitable for driving
the opto-isolated PWM speed control inputs of ECM motors.
o Pin 26, 28 low voltage inputs, suitable for detecting dry contact closures with pins 25, 27
above.
o Pin29 0-10 Volt output, 5ma max, suitable for driving instrumentation inputs.
o Pin 30, negative, common or ground side of the above 0-10 Volt output
o Pin 31 0-10 Volt input, 10k Ohm impedance to ground or common.
o Pin 32, negative, common or ground side of the above 0-10 Volt output
J11: factory programming only, Zilog ZDI microcontroller debug/programming interface
o Pin 1 3.3VDC
o Pin 2 /reset
o Pin 3,5 GND
o Pin 4 DBG input
o Pin 6 NC