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FACTORY SETTINGS
NOTE: Password to enter factory settings menu is 1111
• Lock Screen
– If the option is set to On, a password (9999) will be required when; screen saver
option is enabled or if any button functions are not pressed for 5 minutes.
• Scnsvr Date Time
– User may select date, time, and/or temperature to display on the HMI when
screensaver is active.
• Blower Config
• Blower Control
• 120V Contactor
– 120V output on the MUA board to energize the coil of a contactor. This option
should be selected when the RTU is used in conjunction with a DCV package.
• ECP
– This option should be selected when the RTU is used in conjunction with a DCV package.
• VFD Manual
– HMI selectable VFD frequency.
• VFD Jog
– For use with VFD using photohelic control. Uses the aux pins to control the VFD.
Powering “Aux 1” will speed the fan up, powering “Aux 2” will slow the fan down. When neither
“Aux 1” nor “Aux 2” are powered, the VFD will hold current speed.
• VFD 0-10V
– For use when an external 0-10V signal is being provided to control the speed of the
VFD.
• VFD Pressure
– For use with VFDs that use a pressure transducer (0-10V output).
• ECM (Electronically Controlled Motor)
– HMI selectable supply fan rate.
• ECM 0-10V
– For use when an external 0-10V signal is being provided to modulate the ECM
supply output between min and max speed.
• ECM Pressure
– For use with ECMs that use a pressure transducer (0-10V output).
• Blower Mode
– If the “Occupied Scheduling” is set to On, the menu screen for the blower mode will
allow you to choose ON/AUTO/OFF for Occupied or Unoccupied. If the “Occupied Scheduling” is set
to Off, the menu screen for the blower mode will allow you to choose MANUAL/AUTO/OFF. In
blower auto mode, the blower will only run when it gets a call for heating/cooling. In blower on mode,
the blower will run as long as the fan button is enabled regardless of whether the unit is heating/
cooling. In blower off mode, powering the unit interlock pin will cause the blower to run.
• Airflow Proving –
User can set unit to prove with airflow sensor located on the board.
• Blower Delay Enable –
User may set the blower start/stop delay to Off/Both/Cool/Heat.
• Blower Delay Time
– A time setting delay for the start or stop of the supply blower.
• Door Interlock –
When enabled, a “Door Interlock” fault will display when the blower door is open
during normal operation.
• Blower Presets –
User may set blower preset option On/Off.
• PWM Rate Limits –
Range Min to Max settings for fan speed.
• VFD Direction –
Sends a command to the VFD to run in forward or reverse.
• VFD Freq Limits
– Range Min to Max settings for fan speed.
• Occ Fan Presets
– After the blower has started, the blower setting will use the aux pins to drive the
preset occupied value. Refer to
“Fan Speed and Damper Position Presets” on page 31
.
• Unocc Fan Presets
– Allows user to set unoccupied preset blower speed value.
• Occ PWM Presets
–
After the blower has started, the blower setting will use the aux pins to drive
the preset occupied value. Refer to
“Fan Speed and Damper Position Presets” on page 31
• Unocc PWM Presets
– Allows user to set unoccupied preset blower speed value.
• Blower Pressure
• Cycle Time –
Cycle time is the time between two consecutive readings.
• Static PS KP
– Proportionally constant value for static pressure measured in V/sec.
• Static PS Hysteresis
– This is the hysteresis band used for the static pressure (SP) set point.
