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Make-Up Air Unit
Installation and Operation Manual
Thank you for your purchase!
1
© AirScape MUA-IOM, July 2022, All Rights Reserved.

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Summary of Contents for AirScape Make-Up Air Unit

  • Page 1 Make-Up Air Unit Installation and Operation Manual Thank you for your purchase! © AirScape MUA-IOM, July 2022, All Rights Reserved.
  • Page 2 INSTALLATION OF THE FILTER PRESSURE SENSOR OPTION INSTALLATION OF WIRING AND CONTROL CONTROLLER INTERFACE CONTROLLER BOARD THEORY OF WHF OPERATION START-UP AND OPERATION OPERATING TIPS MAINTENANCE G LO S SARY TROUBLE SHOOTING SPECIFICATIONS ELECTRICAL SCHEMATICS © AirScape MUA-IOM, July 2022, All Rights Reserved.
  • Page 3 The Make-Up Air unit is controlled with an online web interface which can be accessed from a computer, tablet or smart phone when the unit is on a local network. The unit's housing is insulated to maintain the integrity of the home's thermal envelope.
  • Page 4 This includes a real time Graph Tab which keeps track of the temperatures and pressures in your building. The Basic Make-Up Air Unit only brings in make- up air and this limits the abilities of the controller interface.
  • Page 5: Safety Information

    Operation” for connections to be made. This is a good time to write down the serial number(s) on this IOM, which will save you a trip to the attic if you require Tech Support. © AirScape MUA-IOM, July 2022, All Rights Reserved.
  • Page 6: Electrical Requirements

    NOTE: if a GFCI is used it MUST be a Motor Rated GFCI All wiring and connections must be made according to this manual and acceptable wiring standards. All local codes must be followed. Consult an electrician if necessary. © AirScape MUA-IOM, July 2022, All Rights Reserved.
  • Page 7: Purchase Options

    (Heat Assist - Recirc. Air IN/Attic Air IN) - Air Inlet Selector Module (AIS-2) (WHF – Fan Return Air OUT/ WHF Air OUT to Attic) - MUA Controller (10 ft Power Cord) - Cat5 Fan Cable (10 ft) © AirScape MUA-IOM, July 2022, All Rights Reserved.
  • Page 8 It is wise to “plan” and document your Make-Up Air Unit Installation. Picking a location for the make-up air unit is very important and will influence the cost of the installation. Consider the length of duct, accessibility, and routing to ensure an efficient installation.
  • Page 9 FOR BEST RESULTS PLACE THE TEMPERATURE SENSORS CLOSE TO THEIR SOURCE IN THE AIR STREAM. The Inside Air T-Sensor is best placed in the fans exhaust (close to the fan). The Outside Air T-Sensor is best placed outside in the air inlet. © AirScape MUA-IOM, July 2022, All Rights Reserved.
  • Page 10: Network Setup

    NETWORK SETUP In order to change target settings (room pressure, etc) and to monitor the status of the Make-Up Air Unit, it is necessary to connect the MUA control panel to your local area network (LAN). This is accomplished by doing the following: - Connect an Ethernet cable (not incl.) between the control panel and your wireless LAN router (see...
  • Page 11 Brackets If you purchased this module separately It will have to be installed into the Make-Up Air unit system. The module is designed to be quickly “clicked” onto the another module with brackets, guiding plates and quick-lock clips.
  • Page 12 You can also click in the IP Address in the URL Address Bar and by simply deleting the /config portion of the address and by pressing Enter you reactivate the main interface. Perform an operational test of the Heat Assist box (see Start-Up and Operation) © AirScape MUA-IOM, July 2022, All Rights Reserved.
  • Page 13 INSTALLATION OF THE WHOLE HOUSE FAN OPTION IF YOU PURCHASED YOUR UNIT WITH THIS OPTION: THE MAKE-UP AIR UNIT AND CONTROLLER COME FULLY ASSEMBLED AND CONFIGURED SO THE FOLLOWING INSTRUCTIONS NEED NOT BE DONE, although we include them here anyway.
  • Page 14 NOTE: FOR AN WHOLE HOUSE FAN TO OPERATE PROPERLY ENOUGH NET FREE VENTING OPENING MUST EXIST IN THE SOFFIT AND GABLE VENTS THAT VENT THE ATTIC SPACE. SEE THE WHF THEORY OF OPERATION TO CALCULATE YOUR ATTICS NET FREE VENTING OPENING. © AirScape MUA-IOM, July 2022, All Rights Reserved.
  • Page 15 INSTALLATION OF THE HOT WATER HEAT IF YOU PURCHASED YOUR UNIT WITH THIS OPTION: THE MAKE-UP AIR UNIT AND CONTROLLER COME FULLY ASSEMBLED AND CONFIGURED SO THE FOLLOWING INSTRUCTIONS NEED NOT BE DONE, although we include them here anyway. The Hot Water Heat option (coil box module, see image) allows you to heat the Make-Up air that enters your home when the MAU unit is active.
  • Page 16 NOTE: Setting up a water heating coil system may involve plumbing and controls that are beyond the average skillset. If in doubt of any safety on control concerns, please contact AirScape technical support at 1.866.448.4187 or by email at experts@airscapefans.com...
  • Page 17 2 nuts. Connect the other side of the harness to the i2C bus that is empty (i2C bus runs horizontally and there are 2) NOTE: THE ORIENTATION OF THE WIRE COLORS © AirScape MUA-IOM, July 2022, All Rights Reserved.
  • Page 18 Ethernet cable connects the controller fan port to the fan’s RJ45 Jack. Depending on the configuration of MUA you purchase upto three molex harnesses need to be connected to the actuators of the correct AIS modules. See below. © AirScape MUA-IOM, July 2022, All Rights Reserved.
  • Page 19 J – Route two 1/8” I.D. tubing (not incl.) from the controller filter pressure sensor to filter module (if purchased). Controls: The Make-Up Air Unit's controls can be accessed through a webpage, which means the Control Box must be wired to a network, see network setup...
  • Page 20: Controller Interface

    CONTROLLER INTERFACE The Make-Up Air unit is controlled with an online web interface which can be accessed from a computer, tablet or smart phone when the MUA controller and your device are on the same local network. The interface consists of a single page with three tabs: CONTROLS, GRAPHS AND SETTINGS The first Tab is the main page and is the Control Page.
  • Page 21 The differential pressure over the filters, high pressures (- or +) indicates dirtier filters. (if you purchased the Filter Option and depending on how the sensor tubing was connected) * some hysteresis or lag exists but is very small, all sensors are very responsive. © AirScape MUA-IOM, July 2022, All Rights Reserved.
  • Page 22 The Assist Fan sets the fan speed for heating and cooling assist. NOTE: the “CONFIRM” button must be clicked for values to be changed NOTE: some settings will create “Warnings” which aught to be taken seriously. © AirScape MUA-IOM, July 2022, All Rights Reserved.
  • Page 23 NOTE: the “SUBMIT” button must be pushed for the values to be set PROPER TESTING WITH ALL AIR EXPELLING SOURCES AND MAKE-UP AIR FUNCTIONS PURCHASED MUST BE COMPLETED TO VERIFY CORRECT AND EFFICIENT FUNCTIONING OF THE MAKE-UP AIR SYSTEM AND IT’S OTHER MODES. © AirScape MUA-IOM, July 2022, All Rights Reserved.
  • Page 24: Controller Board

    P12, 16, 18, 20 = i2C BUS 1 Usually this is where the Filter Differential Pressure Sensor is connected. J1 = OAT Outside Air Temperature Sensor connects here. J3 = IAT Inside Air or Conditioned Air Temperature Sensor connects here. J1 = AAT Attic Air Temperature Sensor connects here. © AirScape MUA-IOM, July 2022, All Rights Reserved.
  • Page 25 Make-Up Air “OFF”, regardless of the pressure in the living space, and allows you to operate other Modes. Yet the Make-Up Air Unit will activate (and override all other active modes) and bring in outside air when the appliance is turned on.
  • Page 26 Homeowners are then forced to endure either uncomfortable hot indoor temperatures, or the expense of air conditioning. AirScape’s W hole H ouse F ans resolve this dilemma by exhausting hot indoor air out of, and drawing cool outdoor air into, the home.
  • Page 27: Start-Up And Operation

    START-UP AND OPERATION Note to the user: The Airscape Make-Up Air unit is designed to be used with a well sealed building. The fan controller is dependent on a measurement of pressure within the building that is readily influenced by any depressurization sources, as well as the introduction of make-up air into the building.
  • Page 28 This will set the Make-Up Air unit to activate only when a user controlled depressurization appliance is running. Note: If, in normal usage, the Make-Up Air unit activates when it is not needed, adjust this value lower; if it does not activate when needed, adjust this value higher.
  • Page 29: Operating Tips

    OPERATING TIPS The Make-Up Air unit is controlled with an online web interface which can be accessed from a computer, tablet or smart phone when the unit is on a local network. Use the "Fing" app or other network scanner to locate the MUA unit on the network, which shows up as a "Texas Instruments"...
  • Page 30: Maintenance

    MAINTENANCE Your Make-Up Air Unit has a set of filters installed. If you have the optional filter pressure sensor installed, as a guide; you aught to replace the filters when the pressure exceeds a maximum of 125 pascals / 0.5"...
  • Page 31: Troubleshooting

    If you encounter problems with the unit, please take a few minutes to run through the following troubleshooting procedures before calling f or technical support. The Make-Up Air unit is controlled with an online web interface which can be accessed from a computer Network Set-Up to access the MUA unit control interface.
  • Page 32 If these suggestions do not work, contact AirScape technical support at 1.866.448.4187 or by email at experts@airscapefans.com for further assistance. NOTE: You will be asked for a Serial number for the Fan and Damper Door Box so our technician is able to direct you and/or diagnose your system.
  • Page 33: Specifications

    Fully customizable to your installation. Capable of throttling a valve based on Settings and measured Air Temperature. Includes Fire and Hood interlocks. Optional filter pressure sensor (filters dirty delta P = High), Heating Assist and Whole House Fan. Standard Unit Dimensions: © AirScape MUA-IOM, July 2022, All Rights Reserved.
  • Page 34 FROM Air unit into a ATTIC Whole House Fan. Use ventilation cooling to cool your house. EXHAUST INTO Filtration Pressure-Option: ATTIC Measure the dirtiness of your RETURN filters using a pressure sensor. © AirScape MUA-IOM, July 2022, All Rights Reserved.
  • Page 35: Electrical Schematic

    Heating Assist Module (AIS) Filter Monitor Option: (inside) (available but not included) Filter dirty – delta P = High Route tubing to Filter Box Ports (RH = Negative) (1/8” tubing not incl.) © AirScape MUA-IOM, July 2022, All Rights Reserved.

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