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Trane Direct-Fired Indoor and Outdoor Make-Up Air Units, MUA-SVP01A-EN FAULT CODE:Energy Save Mode 1

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MUA-SVP01A-EN • Direct-Fired Indoor and Outdoor Units 37

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 . I ncrease the HTG OCCUPIED setpoint. See Heating Mode - General

Burner Control section of this manual for more information.

Contents

Main Overview NETWORKING ADAPTAIRE DEFAULT SETTINGS Page Contents Unit Operating Modes Functions Diagnostics Menu Selection Contents Thermostat Output Curve Airflow Station Layout I/O Zone 583 Controller Specifications Typical Wiring Schematic Unit Operating Modes MDT Controls: MRT Controls: MRT-Pro Controls: Page MRT-Expert Controls: Page Heating/Ventilating/Cooling Operating Modes Heating Mode General Burner Control Page Ventilation Mode Cooling Mode Figure 1. Cooling Mode Damper Control Modes Manual Mode Mixed Air Temperature Mode Building Pressure Mode Functions 100% Outside Air Minimum Ventilation Freezestat Clogged Filter User Configured PID Control DIRECT ACTING Page REVERSE ACTING Page Unit Resets Multiplexed Inputs Clock Set Diagnostics Critical Fault Codes FAULT CODE: Low Discharge Temperature Page SOLUTION: If burner was not operating prior to shutdown (check prior alarm log) FAULT CODE: Safety Circuit Open SOLUTION:If fan is running (check prior alarm log) FAULT CODE:Burner Status FAULT CODE: Burner Hand FAULT CODE: Flame Failure Diagnostics - Non-Critical Fault Codes FAULT CODE: Unit off/Fan on SOLUTION: If fan is running SOLUTION: If fan is not running FAULT CODE:Unit on/Fan off SOLUTION:If fan/motor is running SOLUTION: If fan/motor is not running FAULT CODE: Check Airflow Switches SOLUTION:If high airflow switch is opening. Do not adjust the switch setpoints SOLUTION:If low airflow switch is opening. Do not adjust the switch setpoints FAULT CODE: Clogged Filter Switch SOLUTION:If clogged filter switch is closing. FAULT CODE:Energy Save Mode 1 SOLUTION:If setpoints are misadjusted SOLUTION:If setpoints are not misadjusted FAULT CODE:Energy Save Mode 2 SOLUTION: If OAT, RoomT or DAT are such that heat is required FAULT CODE:Energy Save Mode 3 SOLUTION: If OAT, RoomT or DAT are such that heat is required SOLUTION: If setpoints are misadjusted FAULT CODE:Insufficient OA SOLUTION:If heat is desired SOLUTION:If less outside air is desired Page Menu Selection Tree for BACview UNIT MODES HOTKEY - 2 Menu Selection Status Alarm SET POINTS HOTKEY - 3 STATUS MENU HOTKEY - 4 Note: The Status Menu always displays the current status of the fan, burner and cooling. ALARM HOTKEY - 1 Alarm History (64 Most Recent) RESETS HOTKEY - 6 SCHEDULES HOTKEY- 7 USER CONFIGURABLE OUTPUT HOTKEY - 8 CLOCKSET HOTKEY - 0 HELP HOTKEY - 5 FUEL SELECT HOTKEY - 9 10 K Ohms Thermistor Output Curve Thermostat Output Curve Resistance (Ohms) Typical 10,000 Ohm Thermistor Output Curve Resistance (Ohms) Typical 10,000 Ohm Thermistor Output Curve Page I/O Zone 583 Controller Specifications I/O Zone 583 Controller Specifications OUTPUT ASSIGNMENTS - ANALOG RNET MRT-Pro or Room Air sensor OUTPUT ASSIGNMENTS - DIGITAL INPUT ASSIGNMENTS - UNIVERSAL