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FACTORY SETTINGS
NOTE: Password to enter factory settings menu is 1111
• Purge Config
• Purge Button
–
On/Off selection. When enabled On, a purge button will be displayed on the HMI.
When the purge button is pressed, the damper will open to max outdoor air and turn on the exhaust
contactor.
• Purge Time
–
This is setting is adjustable from 1 – 120 minutes, default is 15 minutes. This is the
amount of time that the unit will run the purge process if the user does not stop the purge manually.
• Purge Speed
–
Default is 60 Hz. Adjustable between VFD Min and Max frequency. This is the
speed the blower will run during the purge cycle. ECM Purge Speed – Adjustable between PWM
Min and Max frequency. This is the speed the blower will run during the purge cycle.
• Dry Mode Config
–
On/Off selection. When enabled On, a dry mode button will be displayed on the
HMI. When the dry mode button is pressed, the blower will activate (if not already operating).
• Monitoring Sensors
–
–
On/Off selection for possible options:
• Outdoor Air Config
• Outdoor Air Control
–
Off, Manual, 2 Position, Outdoor Air %, Analog Control, Pressure,
100% OA.
• Outdoor Air Deadband
– If the temperature difference between the outdoor and return sensor is
less than or equal to this set point, the MUA board will not attempt to adjust the output voltage until it
matches the outdoor air percentage set point. This setting only takes effect when either outdoor air
% or schedule is selected.
• Return As Space
– Setting this to On will not require a space sensor or HMI. This setting will use
the return air thermistor (RT) in place of the space.
• Outdoor Air Limits
– Minimum and maximum settings for mixing box. Percentage or voltage based
on mixing box selection.
• Min/Max Outdoor Air %
–
Minimum and maximum allowed outdoor air percentage.
• Min Outdoor Air
–
Minimum allowed outdoor air voltage range.
• Max Outdoor Air
–
Maximum allowed outdoor air voltage range.
• Preset OA Values
–
On/Off option. If set to On, the voltage values equivalent to outdoor air
percentage.
• Edit OA% Table
–
User may edit voltages for an equivalent to outdoor air percent table.
• Economizer Config
–
Refer to
• Economizer Mode
–
Off, Fixed Dry Bulb, Diff (Differential) Dry Bulb, Fixed Enthalpy, Diff
Enthalpy.
• Disable Cooling –
When the economizer is using an outside air % greater than this setting,
mechanical cooling will be disabled.
• Economizer Act
– Option to set the economizer to activate on cooling only, or cooling and
blower.
• Damper Presets
– This allows the user to set damper preset option On or Off.
• Occ Damper Presets
–
User may set occupied damper speeds. Refer to
• Unocc Damper Presets
–
User may set unoccupied damper speeds.
• Room Override
– On, Off option. If set to On, the unit will use the Room Override SP rather than
Discharge SP. This setting should only be used when heat tempering mode is set to “Discharge” and
“Activate Based On” is set to “Either.” When the space is calling for heat, it will use the Room Override
SP instead of Discharge SP to heat the space.
- Smoke Detector
- Filter Monitor
- Intake Firestat
- Discharge Firestat
- Freezestat
- Overheat
- Low Gas Switch
- High Gas Switch
- CO Shutdown