Trane Direct-Fired Indoor and Outdoor Make-Up Air Units, MUA-SVP01A-EN Fault CODEEnergy Save Mode

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Diagnostics

–Yes. Clear and continue.

–No. Continue.

3.Is the airflow switch setpoint properly adjusted?

–No. Adjust setpoint.

–Yes. Continue.

4.Are the wires connected to the air pressure switch's normally open contact?

–No. Rewire switch and continue.

–Yes. Continue.

5.Is the air pressure switch's normally open contact open?

–No. Disconnect the sensing tubes and recheck. Replace the switch if contacts do not open.

–Yes. Continue.

6.Find the clogged filter switch on the electrical schematic and identify the control panel terminals to which it is connected. Disconnect the wire from these terminals. Does this clear the alarm?

–Yes. There is short in the wiring between the terminal strip and the switch. Determine cause and rectify.

–No. Continue.

7.Unplug the connector from the controller that is connected to the multiplexed input. Does this clear the alarm?

–Yes. There is short in the wiring of the multiplexed resistors. Determine cause and rectify.

–No. There is an internal short in the controller. Replace the controller.

FAULT CODE:Energy Save Mode 1

PROBLEM: The controller has turned off the burner enable output because it determined the mixed air temperature is equal to or greater than the minimum discharge air temperature setpoint, and the room air temperature is 5°F above the room air temperature setpoint. See the Energy Savings Mode 1 section of this manual for more information.

SOLUTION:If setpoints are misadjusted

1.Is the mixed air temperature (MA Temp), displayed on the BACview remote, greater than or equal to the minimum discharge air temperature setpoint?

–Yes. Increase the HTG MIN DAT setpoint. See Heating Mode - General Burner Control section of this manual for more information.

–No. Continue.

2.Is the room temperature more than 5°F above the room air temperature setpoint?

–Yes. Increase the HTG OCCUPIED setpoint. See Heating Mode - General Burner Control section of this manual for more information.

MUA-SVP01A-EN • Direct-Fired Indoor and Outdoor Units

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Contents January Controls Programming GuideOverview Networking Direct-Fired Indoor and Outdoor Units MUA-SVP01A-EN Contents Contents MDT Controls Unit Operating ModesMRT-Pro Controls MRT ControlsUnit Operating Modes MRT-Expert Controls Unit Operating Modes Heating/Ventilating/Cooling Operating Modes Heating ModeGeneral Burner Control Unit Operating Modes Ventilation Mode M P E R a T U R E S E Cooling ModeDamper Control Modes Manual ModeMixed Air Temperature Mode Building Pressure Mode 100% Outside Air FunctionsMinimum Ventilation FreezestatDirect Acting User Configured PID Control85ºF Direct acting Reverse ActingReverse acting Multiplexed Inputs Unit ResetsClock Set Critical Fault Codes DiagnosticsFault Code Low Discharge Temperature Diagnostics Direct-Fired Indoor and Outdoor Units MUA-SVP01A-EN Fault Code Safety Circuit Open SOLUTIONIf fan is running check prior alarm log Fault CODEBurner StatusFault Code Burner Hand Fault Code Flame Failure Diagnostics Non-Critical Fault CodesSolution If fan is running Fault Code Unit off/Fan onSolution If fan is not running SOLUTIONIf fan/motor is running Fault CODEUnit on/Fan offSolution If fan/motor is not running Fault Code Check Airflow Switches SOLUTIONIf clogged filter switch is closing Fault Code Clogged Filter SwitchSOLUTIONIf setpoints are misadjusted Fault CODEEnergy Save ModeSolution If OAT, RoomT or DAT are such that heat is required SOLUTIONIf setpoints are not misadjustedDiagnostics Solution If setpoints are misadjusted Fault CODEInsufficient OASOLUTIONIf heat is desired SOLUTIONIf less outside air is desired Diagnostics Menu Selection Tree for BACview Menu SelectionUnit Modes Hotkey SET Points Hotkey Menu SelectionResets Hotkey Alarm HotkeyAlarm History 64 Most Recent Status Menu HotkeySchedules Hotkey User Configurable Output HotkeyHelp Hotkey Clockset HotkeyFuel Select Hotkey Ohms Thermistor Output Curve Thermostat Output CurveAirflow station layout Airflow Station LayoutNetwork Communication Zone 583 Controller SpecificationsRnet MRT-Pro or Room Air sensor Zone 583 Controller SpecificationsNon-recirculating with evap Dfoa and Dfia model diagram Typical Wiring SchematicTypical Wiring Schematic Recirculating Dfoa and Dfia model diagrams Recirculating Dfoa and Dfia model diagram Typical Wiring Schematic Trane
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