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Controls Programming Guide
Direct-Fired Indoor and Outdoor Make-Up
Air Units
DFIA
DFOA
January 2007 MUA-SVP01A-EN
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Overview A glossary has been provided to assist the reader in understanding distinctive terms and phrases. These terms and phrases appear in italics. Trane's Digital Control System, AdaptAire, is designed to give the user the ultimate in unit performance and operational flexibility, adaptability, and reliability in a user-friendly package. The AdaptAire DDC system is a standard component on Trane heating and cooling units. Non-recirculating units, equipped with the AdaptAire system, do not
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NETWORKING AdaptAire is adaptable to a variety of different network architectures and protocols. Each controller has built-in protocol translation and can be configured for operation on ARCnet156 or EIA-485 communication networks. See Appendix IV for specific controller specifications. The AdaptAire system can be connected to most existing building automation systems. Some systems may require the use of special controllers and network communication devices. See Appendix I for Device Paramet
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Table 1. Default settings (continued) ITEM DEFAULT RANGE Low Input Value 0 -9999.99 – 99999.99 User Control Setpoint 0 -9999.99 – 99999.99 Maximum User Setpoint 0 -9999.99 – 99999.99 Minimum User Setpoint 0 -9999.99 – 99999.99 4 Direct-Fired Indoor and Outdoor Units � MUA-SVP01A-EN
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Contents NETWORKING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 ADAPTAIRE DEFAULT SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Unit Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 MDT Controls: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 MRT Controls: . . . . . . . . . . . . .
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Contents ALARM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HOTKEY - 145 RESETS HOTKEY - 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 SCHEDULES HOTKEY- 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 USER CONFIGURABLE OUTPUT HOTKEY - 8. . . . . . . . . . . . . . . . . . . . . . . . . 46 CLOCKSET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Unit Operating Modes There are three different modes that control the supply fan and unit operation: �Off �Manual �Auto There are also four different methods for controlling the operating modes: � "a remote panel with two rotating knob adjustments (MDT and MRT controls) � "a remote panel with one rotating knob and an intelligent room sensor (MRT- Pro controls) � "an intelligent room sensor and local user interface panel with LCD display (MRT- � any of the above controls with a internet-base We
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Unit Operating Modes MRT Controls: MRT, modulating room temperature, is the most basic AdaptAire control for room temperature. The MRT control system includes a remote control panel equipped with 1 or 2 potentiometers, 3 or more pilot lights, and up to 2 switches. UNIT OFF MODE Off Mode is the default unit operational mode. To place the unit in Off Mode rotate the "temperature setpoint" knob on the remote control panel counterclockwise to the stop. This will place the unit in the OFF mode a
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Unit Operating Modes UNIT MANUAL MODE Manual Mode allows the unit to turn on regardless of the Time Clock or Night Setback functions. A BACview or PC is required to change to this mode. See the section related to the MRT Expert for instructions on how to use the BACview for programming. UNIT AUTO MODE Auto Mode has four different functions that control the unit operation. They are a time clock, heating and cooling night setbacks, and a signal from an external source. A BACview or PC is requ
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Unit Operating Modes to be "off" and the Cooling Night Setback function turns the unit "on", the unit will be cycled "off" once the room air temperature has fallen 2° below the Cooling Night Setback setpoint. The default for this setpoint is 100°F and is fixed at 27° above the Cooling setpoint. Changing the Cooling setpoint changes the Cooling Night Setback setpoint. Auxiliary Unit Enable. The Auxiliary Unit Enable function overrides all other Auto Mode functions and automatically cycles t
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Unit Operating Modes for up to 4 separate On/Off events with any combination of days. The normal schedule sets the typical On/Off times for the unit. The holiday schedule can be programmed for up to 12 separate On/Off events with any combination of days. The holiday schedule sets the Off times for holidays and other shutdown periods. The override schedule can be programmed for up to 2 separate On/Off events with any combination of days. The override schedule sets the On times that will ove
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Unit Operating Modes function is activated whenever a contact is closed between the appropriate terminals on the unit's terminal strip located in the unit's main control panel. Heating and cooling functions use the Night Setback Setpoints. See the Typical Wiring Schematic and Multiplexed Input sections of this manual for more information. This function can be used with a twist timer, toggle switch, door switch, exhaust fan interlock, or any other dry contact to override the time clock sch
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Unit Operating Modes Setpoint. The allowable temperature range is 55°F - 130°F. This sets the highest discharge air temperature that will leave the unit. If the maximum and minimum discharge temperature setpoints are set for the same temperature, the supply air temperature will be the same as the setpoint regardless of the room temperature setpoint or actual room temperature. Recirculating Direct-Fired Heaters. Using different controller software, the AdaptAire DDC system can accommodate thr
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Unit Operating Modes with internal heat gain. In certain conditions it may be necessary to readjust the minimum discharge air or room temperature setpoint upward or adjust the outside/return air ratio to provide a warmer supply air temperature. Energy Savings Mode 1—Non-Recirculating Units. Energy Savings Mode 1 will automatically disable the burner if the outside air temperature is equal to or greater than the minimum discharge air temperature setpoint, and the room air temperature is 5°F
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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 T Cooling E E +2°F of c
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Unit Operating Modes To change the desired cooling room temperature of an MRT-Pro control system, depress the Warmer button to increase the desired room temperature setpoint or depress the Cooler button to decrease the desired room temperature setpoint. Each push of a button changes the temperature setpoint by 1°F. The setpoint can be changed a maximum of ±10°F from the default of 72°F. To change the desired cooling room temperature of an MRT-Expert control system, scroll through the SETPO
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Unit Operating Modes operating in the heating mode, the unit will automatically keep the minimum outside air at 20%. If the outside air drops below 20%, the burner will cycle off. See Minimum Ventilation. MRT-Pro Controls. To change the damper mode on an MRT-Pro control system requires the use of a BACview or PC. See the section related to the MRT Expert for instructions on how to use the BACview for programming. MRT-Expert Control. To place the damper operation in Manual Mode scroll throu
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Unit Operating Modes Building Pressure Mode The Building Pressure mode varies the percentages of outside air and return air to maintain a constant pressure within the space. A pressure transducer compares the pressure outside the space to the pressure inside the space and transmits a corresponding signal to the AdaptAire controller. The controller compares this signal to the desired building pressure setpoint and uses a PID loop to modulate the outside air and return air dampers to maintai
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Functions 100% Outside Air The 100% Outside Air function automatically opens the outside air dampers and closes the return air dampers. This function is activated whenever a contact is closed between the appropriate terminals on the unit's terminal strip located in the unit's main control panel. See the Typical Wiring Schematic and Multiplexed Input sections of this manual for more information. The 100% Outside Air function overrides all other damper control functions. See User Configured P
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Functions User Configured PID Control This function is applicable to non-recirculating units only. The User Configured PID Control function allows the user to control an analog output based on a user defined analog input and setpoint. See the Typical Wiring and Unit Controller Specification sections of this manual for more information regarding the inputs and outputs. This function also allows the user to select the PID type (direct or reverse acting) and establish upper and lower control
