Troubleshooting - ION Damper Control Installation And Start-Up Instructions Manual

TROUBLESHOOTING

Iont System Control does not power up:
1. Recheck the wiring to the communications connector on all
devices. Make sure all colors match for every terminal.
2. Make sure power is applied to the indoor unit, and the Yel-
low and Green LEDs are lit on the Iont Damper Control.
3. Check for 24 VAC between the C and R terminals at the
Iont System Control terminal block. See the Transformer
Requirements section if load issues on the indoor unit trans-
former is suspected.
4. Check the fuse at the indoor unit circuit board, and the
Iont Damper Control.
Iont System Control display says "Indoor Unit Not Found:"
1. Recheck the wiring to communications on all devices. Make
sure all colors match for every terminal.
2. Press the side button at the Iont System Control to try
again.
3. Check for power to the indoor unit. If a field- -supplied
transformer is used to power the communication, make sure
that power source is connected and powered.
4. Disconnect all communications connections from every de-
vice and only reconnect the Iont System Control to the in-
door unit (and field- -supplied transformer, if applicable). If
the indoor unit is identified by the system control, then an-
other device on the communications connection may be at
fault. Reconnect each device's communications connection
one at a time and perform a Re- -Install from the Service
Menu after each connection is made. If one or more devices
are not found after reconnecting the last device, the last de-
vice may be suspect.
5. If the communications connection only contains an indoor
unit and an Iont System Control, then the wiring, indoor
unit control board, or Iont System Control may be at fault.
Iont System Control cannot find Zones 5 - - 8:
1. Make sure zone module 5 - - 8 has the dip switches set to the
far right.
2. Recheck the wiring to the communications connections.
Iont System Control can find zones 5 - - 8, but not 1 - - 4:
1. Make sure zone module 1 - - 4 has the dip switches set to the
far left.
2. Recheck the wiring to the communications connections.
Zone dampers do not move:
1. Check the fuse located on the Iont Damper Control. If the
fuse is failed, check the damper wiring and inspect for
shorts. No more than five damper motors should be con-
nected to a single damper output. The fuse should be re-
placed with an identical 1A automotive type.
2. Use the System Checkout procedure (refer to the Installa-
tion Instructions) to test the zoning dampers and to verify
that the correct set of dampers is opening for each zone.
3. Dampers may be powered directly—for testing purposes
only—by connecting 24VAC directly across Com and
Open, or Com and Close. The damper should open or
close, based on which input is being powered. This will
rule out the damper.
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