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10 Direct-Fired Indoor and Outdoor Units • MUA-SVP01A-EN
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 the unit into operation. 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. 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 schedule.
MRT-Expert Controls:
The AdaptAire MRT-Expert, modulating room temperature control, provides full
information regarding unit operation and allows the user to adjust all operational
parameters using the included BACview panel.
UNIT OFF MODE
Off Mode is the default unit operational mode. To place the unit in Off Mode
scroll through the Unit Modes menu tree, locate the AUTO/OFF/MANUAL branch,
and select OFF. This will place the unit in the OFF mode. The OFF mode prevents
the fan and burner from starting. This mode will override the Time Clock and
Night Setback functions.
UNIT MANUAL MODE
Manual Mode allows the supply fan to turn on regardless of the Time Clock or
Night Setback functions. Heating and cooling functions use the Night Setback
Setpoints. To place the unit in Manual Mode scroll through the Unit Modes menu
tree, locate the AUTO/OFF/MANUAL branch, and select MANUAL. This will place
the unit in the MANUAL mode.
UNIT AUTO MODE
Auto Mode has four different functions that control the supply fan and unit
operation. They are a time clock function, heating and cooling night setbacks,
and a signal from an external source to an auxiliary digital input. To place the unit
in Auto Mode scroll through the Unit Modes menu tree, locate the AUTO/OFF/
MAN branch, and select AUTO. This will place the unit in the AUTO mode. This
activates the four Auto mode functions.
Scheduling Time Clock. The primary Auto Mode function is the Time Clock
Schedule. The Time Clock function allows the user to schedule the operational
times of the unit. There are four different schedules available: 24 hour continuous
operation, daily, holiday, and override. The daily schedule can be programmed