Trane Technologies IntelliPak Signature SCWF - Page 101

SCXF-SVX01T-EN
101
Category Diagnostic
Reset
The INFO diagnostic is cleared when the supply fan VFD bypass is deactivated.
T
LCI Module Comm Failure
Problem The RTM has lost communication with the LCI.
Check
Check field/unit wiring between RTM and LCI module.
Reason for
Diagnostic
The RTM has lost communication with the LCI module.
Controls
Reaction
All active commands and setpoints provided by Tracer Summit through the LCI will be canceled and/or ignored. And where Tracer Summit has
been designated as setpoint source, local HI default setpoints will be used.
Reset
Required
(PAR) An automatic reset occurs after communication has been restored.
Tracer Communications Failure
Problem LCI has lost communication with Tracer Summit.
Check
Tracer Summit (building control panel) is powered up and running properly. If so, check unit wiring between LCI and Tracer Summit (building
control panel).
Reason for
Diagnostic
The LCI has lost communications with Tracer Summit for > 15 minutes.
Controls
Reaction
All active commands and setpoints provided by Tracer Summit through the LCI will be canceled and/or ignored. And where Tracer Summit has
been designated as the setpoint source, local HI default setpoints are used.
Reset
Require
(PAR) An automatic reset occurs after communication between Tracer Summit and the LCI is restored.
U
Unit HI Communications Failure
Problem
The RTM has lost communication with the unit mounted (local) human interface (HI).
Check
Field/unit wiring between RTM hand local HI.
Reason for
Diagnostic
The RTM has lost communication with the unit-mounted human interface.
Controls
Reaction
A fail-safe function in the HI will cause the following sequence:
1. Disallow any interaction between the HI and the RTM (or any other modules)
2. Render all HI keystrokes ineffective
3. Cause the following message to display 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 this diagnostic will display as any other automatic reset diagnostic.
Reset
Required
(INFO) An automatic reset occurs after communication is restored between the RTM and the HI. When the failure screen clears, the general
display restores to allow the HI to interact with the RTM again.
Unoccupied Zone Cool Setpoint Failure
Problem
The unoccupied zone cooling setpoint input is out of range.
Reason for
Diagnostic
The input designated as the unoccupied zone cooling setpoint source is out of range (temp < 45°F or temp > 94°F).
Controls
Reaction
The active unoccupied zone cooling setpoint reverts to the default value.
Reset
Required
(PAR) An automatic reset occurs after the designated unoccupied zone cool setpoint input returns to its allowable range for 10 continuous
seconds, or after the user defines a different, valid unoccupied zone cool setpoint selection source.
Unoccupied Zone Heat Setpoint Failure
Problem
The unoccupied zone heating setpoint input is out of range.
Reason for
Diagnostic
The input designated as unoccupied zone heating setpoint source is out of range (temp < 45 F or temp > 94 F).
Diagnostics