FloAire Electrical Controls - Manual (Page 25)

A0023032
August 2014 Rev. 7
25

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
Troubleshooting
The following table lists causes and corrective actions for possible problems with this control. Review this
list prior to consulting manufacturer.
Troubleshooting Chart
Problem Potential Cause Corrective Action
Smoke Rollout of Hood – Fans
don’t start-up when appliances
are ON
Dirty temperature sensor Clean grease and dirt from
sensor
Poor Heat detection Decrease duct Temperature
offset values
Improper hood installation Check for proper hood overhang,
cross drafts or improper hood
design
Fans Spin Wrong Direction 3 phase Motor output wired
backward Swap 2 of the 3 phase wires on
the output of the starter feeding
the motor
Light icon On but No Lights
Come On Light bulbs are blown Replace hood light bulbs
Loose wiring connection Check light terminal block wiring
connections
Fan icon On but Fan doesn’t
comes On
Broken fan belt Replace fan belt
Loose wiring connection Check wiring connections on
starters