Trane IntelliPak SCRF 25, Инструкция по установке, эксплуатации и обслуживанию

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SCXF-SVX01Q-EN 109
Category Diagnostic
Check
This can be caused by an intermittent power loss. Turn the unit off for 1-2 minutes, then back on again. If diagnostic persists,
then the RTM may need to be replaced.
Reason for
Diagnostic
An error occurred while the RTM was writing data to its internal non-volitile memory (EEPROM).
Controls
Reaction
An information only diagnostic will be displayed at the human interface.
Reset
Required
(INFO) A manual reset may be made at the human interface, at Tracer Summit, or by cycling power to the RTM.
RTM Zone Sensor Failure
Problem
The RTM zone temperature sensor input is out of range.
Check
Sensor resistance should be between 830 ohms (200°F) and 345.7 ohms (-40°F). If so, check field/unit wiring between sensor
and RTM.
Reason for
Diagnostic At least one enabled unit function has the RTM zone temperature input designated as its sensor, and the unit is reading a signal
that is out of range for this input (temp. < -55°F or temp > 150°F).
Controls
Reaction
The functions with the RTM zone temperature input designated as their sensor are disabled.
Reset
Required
(PAR) an automatic reset occurs after the designated zone temperature signal returns to its allowable range. To prevent rapid
cycling of the diagnostic, there is a 10 second delay before the automatic reset.
S
SCM Communication Failure
Problem The RTM has lost communication with the SCM.
Check
Check field/unit wiring between the RTM and SCM.
Reason for
Diagnostic
The RTM has lost communication with the SCM.
Controls
Reaction
A “lockout” request is sent to the compressor staging control function. A fail-safe function in the SCM will cause all SCM outputs
to be zeroed and de-energized.
Reset
Required
(PAR) An automatic reset occurs after communication has been restored.
Space Static Press Setpoint Failure
Problem
The active space static pressure setpoint is out of range.
Check
Check setpoint value. Also, if space pressure setpoint source is GBAS, but this setpoint has not been assigned to any of the four
analog inputs on GBAS, this message will occur.
Reason for
Diagnostic
The unit is reading a signal that is out of range for the space static pressure setpoint (input < 0.03 iwc or input > 0.20 iwc).
Controls
Reaction
The default space pressure setpoint will become the active space pressure setpoint.
Reset
Required
(PAR) An automatic reset occurs after the designated space pressure setpoint source sends a signal within range for 10
continuous seconds, or after a different space pressure setpoint source is user-defined.
Supply Air Pressure Sensor Failure
Problem
The supply air pressure sensor voltage input is out of range.
Check
Check field/unit wiring between the sensor and RTM.
Reason for
Diagnostic
The unit is reading a signal that is out of range for the supply air pressure sensor voltage input (input < 40mV or input > 4.75V)
Controls
Reaction
The following functions are disabled;
• SA pressure control
• SA static pressure limit
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