Trane Direct-Fired Indoor and Outdoor Make-Up Air Units manual Cooling Mode, M P E R a T U R E S E

Page 15

Unit Operating Modes

line downward. If the room temperature falls to a temperature that is 2°F below the heating setpoint, the heating will be enabled, and the unit will be in the heating mode. Continue following the solid line in a clockwise direction to the heating setpoint. Once the room temperature rises to the heating setpoint, the heating mode will be disabled, and the room will be in the ventilation mode.

Figure 1. Cooling Mode

Cooling mode

Cooling mode

T E M P E R A T U R E

R I S E

Ventilation mode

Heating mode

+2°F of cooling SP cooling enable

A

heating SP

cooling SP

-2°F of heating SP heating enable

Cooling mode

Ventilation mode

Heating mode

T E M P E R A T U R E

F A L L

Heating mode

Cooling Mode

Cooling Mode allows the cooling to operate as needed and is activated whenever the room temperature is 2° above the cooling setpoint. In the Cooling Mode the cooling output will cycle to maintain a constant room temperature. The cooling output does not have an anti-cycle delay.

The MDT control system does not support the Cooling Mode.

To change the desired cooling room temperature of an MRT control system, rotate the temperature setpoint knob on the remote panel clockwise to the desired temperature. The allowable temperature range is 55°F - 90°F. The cooling will be disabled when the room temperature drops to the Cooling Setpoint.

MUA-SVP01A-ENDirect-Fired Indoor and Outdoor Units

15

Image 15
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 Mode Heating/Ventilating/Cooling Operating ModesGeneral 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 Freezestat Functions100% Outside Air Minimum VentilationDirect Acting User Configured PID Control85ºF Direct acting Reverse ActingReverse acting Multiplexed Inputs Unit ResetsClock Set Diagnostics Critical Fault CodesFault 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 CodesFault Code Unit off/Fan on Solution If fan is runningSolution If fan is not running Fault CODEUnit on/Fan off SOLUTIONIf fan/motor is runningSolution 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 Fault CODEInsufficient OA Solution If setpoints are misadjustedSOLUTIONIf heat is desired SOLUTIONIf less outside air is desired Diagnostics Menu Selection Menu Selection Tree for BACviewUnit Modes Hotkey SET Points Hotkey Menu SelectionStatus Menu Hotkey Alarm HotkeyResets Hotkey Alarm History 64 Most RecentSchedules 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