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System Testing & Troubleshooting
DIAGNOSTIC DISPLAYED REASON FOR DIAGNOSTIC UCM’S REACTION RESET REQUIRED
BAS Module Communications Failure CGM has lost communications All active commands and (PAR) An automatic reset
with the TCI or LCI Module. setpoints provided by the network
occurs after communication
Problem: The RTM has lost through the TCI or LCI will be has been restored.
communications with the TCI or LCI. cancelled and/ or ignored. Where
the network has been designated
Check: Check field/ unit wiring as setpoint source, local HI default
between RTM and TCI or LCI Module. setpoints will be used.
BAS/NETWORK Comm Failure The TCI or LCI has lost All active commands and (PAR) An automatic reset occurs
communications with the
setpoints provided by the
after comunications with the
Problem: The TCI or LCI has lost network for > 15 minutes. network through the TCI or network and TCI or LCI
communications with Tracer. LCI will be cancelled and/ has been restored.
or ignored. Where the network
Check: Network (Tracer or 3rd party has been designated as setpoint
building control panel) is powered up source, local HI default
and running properly. If so, check unit setpoints will be used.
wiring between TCI or LCI and network
(Tracer or 3rd party buildin
control panel
Unit HI Communications Failure The CGM has lost A failsafe function in the HI will; (INFO) An automatic reset occurs
communications with the
a. disallow any interaction after communication has been
Problem: The CGM has lost unit-mounted Human between the HI and the
communications with the Unit Interface. CGM (or any other and the HI. When the failure
mounted (local) Human Interface modules), screen is cleared, the
(HI). b. render all HI keystrokes General display is restored
ineffective, and and HI interaction with the
Check: Field/unit wiring between c. cause the following to be CGM is again permitted.
CGM and Local HI. displayed on the unit-
mounted HI display: LOCAL HI
COMMUNICATIONS
LOSS CHECK COMM LINK
WIRING BETWEEN
MODULES
(If the unit has a remote HI
option, then on the remote
HI module, this diagnostic
will be reported and
displa
ed as an
other
automatic reset diagnostic).
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